John Knaff earned a B.S. in Meteorology (1989) from Texas A&M University, and a MS (1992) and PhD (1997) in Atmospheric Science from Colorado State University. He was a post-doctoral researcher in the Department of Atmospheric Science at Colorado State University (1997) and a post-doctoral Fellow at the Cooperative Institute for Research in the Atmosphere at Colorado State University (1997-1999). In 1999 he took a Research Scientist position at the Cooperative Institute for Research in the Atmosphere. He joined NOAA in 2006 as a Meteorologist in the NESDIS Regional and Mesoscale Meteorology Branch located in Fort Collins, Colorado.
His PhD concentrated on tropical climate variability including El Nino/Southern Oscillation, monsoons, tropical cyclones and large-scale Atlantic climatology. Since that time, most of his research has dealt with observational aspects of hurricane structure and intensity variations and prediction. That work has led to the development of many forecast applications that have been transferred to operations at the NESDIS, the National Hurricane Center, the Joint Typhoon Warning Center, and tropical cyclone warning centers worldwide. These efforts have led to many awards including the NOAA David Johnson Award (2004), Department of Commerce Bronze Medals (2007, 2010, 2012), the Colorado Governor’s Award for High Impact Research in (team member, 2012) and recognition for the best paper in STAR (2016).
Current applied research interests are focused on the utilization of satellite and other observations to improve scientific understanding, diagnosis and forecasting capabilities of tropical cyclone genesis and structure change, the development and documentation of operational tropical cyclone forecasting techniques, the transfer of such techniques to the operational setting. Existing scientific endeavors have been aimed at understanding the various types of tropical vorticies their formation, maintenance, and lifecycles and the occasional foray into inter-annual climate variations. Since 1991, he has published more than 80 articles on tropical cyclones, forecast techniques, mesoscale meteorology and tropical climatology in the refereed literature.
Knaff, J. A., and C. J. Slocum, 2024: An automated method to analyze tropical cyclone surface winds from real-time aircraft reconnaissance observations. Wea. Forecasting, 39, 333–349, https://doi.org/10.1175/WAF-D-23-0077.1
Bruneau, N., T. Loridan, N. Hannah, E. Dubossarsky, M. Joffrain, and J. Knaff, 2024: Modeling variability in tropical cyclone maximum wind location and intensity using InCyc: A global database of high-resolution tropical cyclone simulations. Mon. Wea. Rev., 152, 319–343, https://doi.org/10.1175/MWR-D-22-0317.1.
Cheung, A. A., C. J. Slocum, J. A. Knaff, and M. N. Razin, 2024: Documenting the progressions of secondary eyewall formations. Wea. Forecasting, 39, 19–40, https://doi.org/10.1175/WAF-D-23-0047.1.
Sampson, C.R., J. Cummings, J. A. Knaff, M. DeMaria, and E. A. Serra, 2022: An upper ocean thermal field metrics dataset. Meteor., 1, 327–340. https://doi.org/10.3390/meteorology1030021
Chavas, D. R., and J. A. Knaff, 2022: A simple model for predicting the tropical cyclone radius of maximum wind from outer size, Wea. Forecasting, 37, 563-579. DOI: 10.1175/WAF-D-21-0103.1 PDF
Jackson, C. R., T. W. Ruff, J. A. Knaff, A. Mouche, and C. R. Sampson, 2021: Chasing cyclones from space, Eos, 102, https://doi.org/10.1029/2021EO159148.
Knaff, J.A., C. R. Sampson, M. Kucas, C. J. Slocum, M. J. Brennan, T. Meissner, L. Ricciardulli, A. Mouche, N. Reul, M. Morris, G. Chirokova, and P. Caroff, 2021: A practical guide to estimating tropical cyclone surface winds: History, current status, emerging technologies, and a look to the future. Tropical Cyclone Research and Review, 10(3), 125-150, https://doi.org/10.1016/j.tcrr.2021.09.002. PDF
Pun, I.-F., J. A. Knaff, and C. R. Sampson, 2021: Uncertainty of tropical cyclone wind radii on sea surface temperature cooling. J. Geophys. Res.: Atmospheres, 126(14), https://doi.org/10.1029/2021JD034857. PDF
Sampson, C. R., Serra, E. A., Knaff, J. A., & Cossuth, J. H. (2021). Evaluation of global wave probabilities consistent with official forecasts, Wea. Forecasting, 36(5), 1891-1904. https://doi.org/10.1175/WAF-D-21-0037.1. PDF
Combot, C., A. Mouche, J. A. Knaff, Y. Zhao, Y. Zhao, L. Vinour, Y. Quilfen, and B. Chapron, 2020: Extensive high-resolution Synthetic Aperture Radar (SAR) data analysis of tropical cyclones: Comparisons with SFMR flights and best track. Mon. Wea. Rev., 148(11), 4545–4563, https://doi.org/10.1175/MWR-D-20-0005.1.
Domingues, R., G. J. Goni, J. A. Knaff, I-I Lin, and F. Bringas, 2020: [The Tropics] Tropical Cyclone Heat Potential [in NOAA “State of the Climate in 2019”], Bull. Amer. Meteor. Soc., 101(8), S227-S229, doi: 10.1175/BAMS-D-20-0077.1. PDF
Knaff, J.A., C.R. Sampson, and B.R. Strahl, 2020: A tropical cyclone rapid intensification prediction aid for the Joint Typhoon Warning Center’s areas of responsibility. Wea. Forecasting, 35(3), 1173 – 1185, doi:10.1175/WAF-D-19-0228.1. PDF
Neetu, S., M. Lengaigne, J. Vialard, M. Mangeas, C. E. Menkes, I. Suresh, J. Leloup, and J. A. Knaff, 2020: Quantifying the Benefits of Nonlinear Methods for Global Statistical Hindcasts of Tropical Cyclones Intensity. Wea. Forecasting, 35(3), 807–820, https://doi.org/10.1175/WAF-D-19-0163.1. PDF
Rivoire, L., T. Birner, J.A. Knaff, and N. D. Tourville, 2020: Quantifying the Radiative Impact of Clouds on Tropopause Layer Cooling in Tropical Cyclones. J. Climate, 33(15), 6361-6376, doi:10.1175/JCLI-D-19-0813.1.
Bourassa, M. A., T. Meissner, I. Cerovecki, P. S. Chang, X. Dong, G. DeChiara, C/ Donlon, D. S. Dukhovskoy, J. Elya, A. Fore, M. R. Fewings, R. C. Foster, S. T. Gille, B.K. Haus, S.Hristova-Veleva, H. M. Holbach, Z. Jelenak, J. A. Knaff, S. A. Kranz, A. Manaster, M. Mazloff, C. Mears, A. Mouche, M. Portabella, N. Reul, L. Ricciardulli, E. Rodriguez, C. Sampson, D. Solis, A. Stoffelen, M. R. Stukel, B. Stiles, D. Weissman, and F. Wentz, 2019: Remotely Sensed Winds and Wind Stresses for Marine Forecasting and Ocean Modeling. Frontiers in Marine Science, 6(443), https://doi.org/10.3389/fmars.2019.00443. PDF
Courtney, J. B., S. Langlade, C. R. Sampson, J. A. Knaff, T. Birchard, S. Barlow, S.D. Kotal, T. Kriat, W. Lee, R. Pasch, and U. Shimada 2019: Operational perspectives on tropical cyclone intensity change Part 1: Recent advances in intensity guidance. Tropical Cyclone Research and Review, 8(3), 123-133, doi: 10.6057/2019TCRR03.02. PDF
Courtney, J. B., S. Langlade, C. R. Sampson, J. A. Knaff, T. Birchard, S. Barlow, S.D. Kotal, T. Kriat, W. Lee, R. Pasch, and U. Shimada, 2019: Operational Perspectives on Tropical Cyclone Intensity Change Part 2: Forecasts by Operational Agencies. Tropical Cyclone Research and Review, 8(4), 226-239. doi: 10.6057/2019TCRR04.03. PDF
Domingues R., A. Kuwano-Yoshida, P. Chardon-Maldonado, R.E. Todd, G. Halliwell, H.-S. Kim, I.-I. Lin, K. Sato, T. Narazaki, L.K. Shay, T. Miles, S. Glenn, J.A. Zhang, S.R. Jayne, L. Centurioni, M. Le Hénaff, G.R. Foltz, F. Bringas, M.M. Ali, S.F. DiMarco, S. Hosoda, T. Fukuoka, B. LaCour, A. Mehra, E.R. Sanabia, J.R. Gyakum, J. Dong, J.A. Knaff, and G. Goni, 2019: Ocean observations in support of studies and forecasts of tropical and extratropical cyclones. Front. Mar., Sci. 6(446), doi: 10.3389/fmars.2019.00446. PDF
Goni, G. J., J. A. Knaff, and I – I. Lin, 2019: [The Tropics] Tropical Cyclone Heat Content [in NOAA “State of the Climate in 2019”], Bull. Amer. Meteor. Soc., 100(8), S133-S135. PDF
Knaff, J. A., C. J. Slocum, and K. D. Musgrave, 2019: Quantification and Exploration of Diurnal Oscillations in Tropical Cyclones. Mon. Wea. Rev., 147, 2105-2121, doi:10.1175/MWR-D-18-0379.1. PDF
Mouche, A., B. Chapron, J. A. Knaff, Y. Zhao, B. Zhang, and C. Combot, 2019: Copolarized and cross‐polarized SAR measurements for high‐resolution description of major hurricane wind structures: Application to Irma category 5 hurricane. J. Geophys. Res. Oceans, 124(6), 3905-3922, https://doi.org/10.1029/2019JC015056. PDF
Emanuel, K., P. Caroff, S. Delgado, C. Guard, M. Guishard, C. Hennon, J. A. Knaff, K. R. Knapp, J. P. Kossin, C. Schreck, C. S. Velden, and J. L. Vigh, 2018: On the desirability and feasibility of a global reanalysis of tropical cyclones. Bull. Amer. Meteor. Soc., 99(2), 427–429, doi:10.1175/BAMS-D-17-0226.1. PDF
Goni, G. J., J. A. Knaff, and I – I. Lin, 2018: [The Tropics] Tropical Cyclone Heat Content [in NOAA “State of the Climate in 2017”]. Bull. Amer. Meteor. Soc., 99(8), S129-S131, doi:10.1175 /2018BAMSStateoftheClimate.1. PDF
Emanuel, K., P. Caroff, S. Delgado, C. Guard, M. Guishard, C. Hennon, J. A., Knaff, K. R. Knapp, J. Kossin, C. Schreck, C. Velden, and J.Vigh, 2018: On the Desirability and Feasibility of a Global Reanalysis of Tropical Cyclones. Bull. Amer. Meteor. Soc., 99(2), 427-429. PDF
Knaff, J. A., C. R. Sampson, and K. D. Musgrave, 2018: An Operational Rapid Intensification Prediction Aid for the Western North Pacific. Wea. Forecasting, 33(3), 799–811, doi: /10.1175/WAF-D-18-0012.1. PDF
Knaff, J. A., C. R. Sampson, and K. D. Musgrave, 2018: Statistical Tropical Cyclone Wind Radii Prediction using Climatology and Persistence: Updates for the Western North Pacific. Wea. Forecasting, 33(4), 1093-1098, https://doi.org/10.1175/WAF-D-18-0027.1. PDF
Sampson, C. R., J. S. Goerss, J. A. Knaff, B. R. Strahl, E. M. Fukada, and E. A. Serra, 2018: Tropical cyclone gale wind radii estimates, forecasts and error forecast for the western North Pacific, Wea. Forecasting, 33(4), 1081-1092, doi:10.1175/WAF-D-17-0153.1. PDF
Bender, M. A., T. P. Marchok, C. R. Sampson, J. A. Knaff, and M. J. Morin, 2017: Impact of storm size on prediction of storm track and intensity using the 2016 operational GFDL hurricane model. Wea. Forecasting, 32(4), 1491-1508, https://doi.org/10.1175/WAF-D-16-0220.1. PDF
Bender, M. A., T. P. Marchok, C. R. Sampson, J. A. Knaff, and M. J. Morin, 2017: Impact of storm size on prediction of tropical cyclone storm track and intensity. Highlighted in Papers of Note, Bull. Amer. Meteor. Soc., 98(10), 2049-2050. PDF
Chavas, D. R., K. A. Reed, and J. A. Knaff, 2017: Physical understanding of the tropical cyclone wind-pressure relationship. Nature Communications, 8(1360), doi: 10.1038/s41467-017-01546-9. PDF
Goni, G. J., J. A. Knaff, and I – I. Lin, 2017: [The Tropics] Tropical Cyclone Heat Content [in NOAA “State of the Climate in 2016”]. Bull. Amer. Meteor. Soc., 98(8), S123-S126. doi:10.1175 /2017BAMSStateoftheClimate.1. PDF
Knaff, J. A., and R. T. DeMaria, 2017: Forecasting tropical cyclone eye formation and dissipation in infrared imagery. Wea. Forecasting, 32(6), 2103–2116. https://doi.org/10.1175/WAF-D-17-0037.1. PDF
Knaff, J. A., C. R. Sampson, and G. Chirokova, 2017: A global statistical–dynamical tropical cyclone wind radii forecast scheme. Wea. Forecasting, 32(2), 629–644. doi: 10.1175/WAF-D-16-0168.1. PDF
Neetu, S., M. Lengaigne, N. S., H. B. Menon, J. Vialard, M. Mangeas, C. E Menkes, M. M. Ali, I. Suresh, and J. A. Knaff, 2017: Global assessment of tropical cyclones intensity statistical-dynamical hindcasts., Quart. J. Roy. Meteor. Soc., 143(706), 2143-2156, doi:10.1002/qj.3073. PDF
Sampson, C. R., E. Fukada, J. A. Knaff, B. Strahl, M. Brennan, and T. P. Marchok, 2017: Tropical cyclone gale wind radii estimates for the western North Pacific. Wea. Forecasting, 32(3), 1029-1040. doi: 10.1175/WAF-D-16-0196.1 PDF
Goni, G. J, J. A. Knaff, and I. – I. Lin, 2016: [The Tropics] Tropical Cyclone Heat Content [in “State of the Climate in 2015”]. Bull. Amer. Meteor. Soc., 97(8), S120-S123. PDF
Knaff, J. A., C. J. Slocum, K. D. Musgrave, C. R. Sampson, and B. R. Strahl, 2016: Using routinely available information to estimate tropical cyclone wind structure. Mon. Wea. Rev., 144(4), 1233-1247. doi: http://dx.doi.org/10.1175/MWR-D-15-0267.1 PDF
Rivoire, L., T. Birner, and J. A. Knaff, 2016: Evolution of the upper-level thermal structure in tropical cyclones, Geophys. Res. Lett., 43(19), 10,530–10,537. doi:10.1002/2016GL070622 PDF
Sampson, C. R., J. Hansen, P. Wittmann, J. A. Knaff, and A. B. Schumacher, 2016: Wave probabilities consistent with official tropical cyclone forecasts. Wea. Forecasting, 31(6), 2035–2045. doi: 10.1175/WAF-D-15-0093.1 PDF
Wu, T.-C., M. Zupanski, L. D. Grasso, P. J. Brown, C. D. Kummerow, and J. A. Knaff, 2016: The GSI capability to assimilate TRMM and GPM hydrometeor retrievals in HWRF. Q.J.R. Meteorol. Soc., 142(700), 2768–2787. doi:10.1002/qj.2867 PDF
Folmer, M. J., M. DeMaria, R. R. Ferraro, J. L. Beven, M. Brennan, J. M. Daniels, R. J. Kuligowski, H. Meng, S. Rudlosky, L. Zhao, J. A. Knaff, S. Kusselson, S. D. Miller, T. J. Schmit, C. S. Velden, and B. Zavodsky, 2015: Satellite tools to monitor and predict Hurricane Sandy (2012): Current and emerging products. Atmospheric Research, 166, 165-181, http://dx.doi.org/10.1016/j.atmosres.2015.06.005 PDF
Goni, G. J., J. A. Knaff, and I. – I. Lin, 2015: [The Tropics] Tropical Cyclone Heat Content [in “State of the Climate in 2014”]. Bull. Amer. Meteor. Soc., 96(7), S121-S122. PDF
Kaplan, J., C. M. Rozoff, M. DeMaria, C. R. Sampson, J. P. Kossin, C. S. Velden, J. J. Cione, J. P. Dunion, J. A. Knaff, J. A. Zhang, J. F. Dostalek, J. D. Hawkins, T. F. Lee, and J. E. Solbrig, 2015: Evaluating environmental impacts on tropical cyclone rapid intensification predictability utilizing statistical models. Wea. Forecasting, 30(5), 1374-1396. doi: http://dx.doi.org/10.1175/WAF-D-15-0032.1 PDF
Knaff, J. A., S. P. Longmore, R. T. DeMaria, and D. A. Molenar, 2015: Improved Tropical-Cyclone Flight-Level Wind Estimates Using Routine Infrared Satellite Reconnaissance. J. Appl. Meteor. Climatol., 54(2), 463-478. doi: http://dx.doi.org/10.1175/JAMC-D-14-0112.1 PDF
Knaff, J. A., S. P. Longmore, and D. A. Molenar, 2015: CORRIGENDUM. J. Climate, 28(21), 8648-8651. doi: http://dx.doi.org/10.1175/JCLI-D-15-0610.1 PDF
Knaff, J. A., and C. R. Sampson, 2015: After a decade are atlantic tropical cyclone gale force wind radii forecasts now skillful? Wea. Forecasting, 30(3), 702-709. doi: http://dx.doi.org/10.1175/WAF-D-14-00149.1 PDF
Longmore, S. P., S. D. Miller, D. E. Bikos, D. T. Lindsey, E. J. Szoke, D. A. Molenar, D. W. Hillger, R. L. Brummer, and J. A. Knaff, 2015: An Automated Mobile Phone Photo Relay and Display Concept Applicable to Operational Severe Weather Monitoring. J. Atmos. Oceanic Technol., 32(7), 1356-1363. doi: http://dx.doi.org/10.1175/JTECH-D-14-00230.1 PDF
Sampson C. R., and J. A. Knaff, 2015: A consensus forecast for tropical cyclone gale wind radii. Wea. Forecasting, 30(5), 1397-1403. doi: http://dx.doi.org/10.1175/WAF-D-15-0009.1 PDF
Wu, L., W. Tian, Q. Liu, J. Cao, and J. A. Knaff, 2015: Implications of the Observed Relationship between Tropical Cyclone Size and Intensity over the Western North Pacific. Journal of Climate, 28, 9501-9506. PDF
Apodaca, K., M. Zupanski, M. DeMaria, J. A. Knaff, and L. D Grasso, 2014: Development of a hybrid variational-ensemble data assimilation technique for observed lightning tested in a mesoscale model. Nonlin. Processes Geophys., 21(5), 1027-1041, doi:10.5194/npg-21-1027-2014. PDF
Balaguru K., S. Taraphdar, L. R. Leung, G. R. Foltz, and J. A. Knaff, 2014: Cyclone-cyclone interactions through the ocean pathway. Geophy. Res. Let., 41(19), 6855–6862. doi: 10.1002/2014GL061489 PDF
DeMaria, M., C. R. Sampson, J. A. Knaff and K. D. Musgrave, 2014: Is tropical cyclone intensity guidance improving? Bull. Amer. Meteor. Soc., 95(3) 387-398. PDF
Goni, G. J., J. A. Knaff, and I. – I. Lin, 2014: [The Tropics] Tropical Cyclone Heat Content [in “State of the Climate in 2013”]. Bull. Amer. Meteor. Soc., 95(7), S99-S100. PDF
Knaff, J. A., S. P. Longmore, and D. A. Molenar, 2014: An Objective Satellite-Based Tropical Cyclone Size Climatology. J. Climate, 27(1), 455–476. doi: http://dx.doi.org/10.1175/JCLI-D-13-00096.1 PDF
DeMaria, M., J. A. Knaff, M. Brennan, D. Brown, R. Knabb, R. T. DeMaria, A. B. Schumacher, C. Lauer, D. Roberts, C. R. Sampson, P. Santos, D. Sharp, and K. Winters, 2013: Improvements to the operational tropical cyclone wind speed probability model. Wea. Forecasting, 28(3), 586-602. doi.org/10.1175/WAF-D-12-00116.1 PDF
DeMaria M, J. A. Knaff, and R. M. Zehr, 2013: Assessing hurricane intensity using satellites. Satellite-based Applications to Climate Change. J. J. Qu, A. Powell, and M.V.K. Sivakumar, Eds, Springer, New York, Chapter 10, 151-163. doi: http://dx.doi.org/10.1007/978-94-007-5872-8_10. PDF
Goni, G. J, J. A. Knaff, and I. – I. Lin, 2013: [The Tropics] Tropical Cyclone Heat Content [in “State of the Climate in 2012”]. Bull. Amer. Meteor. Soc., 94(8), S99-S100. PDF
Knaff, J. A., M. DeMaria, C. R. Sampson, J. E. Peak, J. Cummings, and W. H. Schubert, 2013: Upper oceanic energy response to tropical cyclone passage. J. Climate 26(8), 2631-2650. doi: http://dx.doi.org/10.1175/JCLI-D-12-00038.1 PDF
Knapp, K. R., J. A. Knaff, C. R. Sampson, G. M. Riggio, and A. D. Schnapp, 2013: A pressure-based analysis of the historical western North Pacific tropical cyclone intensity record. Mon. Wea. Rev. 141(8), 2611-2631. doi: http://dx.doi.org/10.1175/MWR-D-12-00323.1 PDF
Lin, I. – I., G. J. Goni, J. A. Knaff, C. Forbes, and M. M. Ali, 2013: Ocean heat content for tropical cyclone intensity forecasting and its impact on storm surge J. Natural Hazards. 66(3), 1481-1500. doi:10.1007/s11069-012-0214-5 PDF
Sharma, N., M. M. Ali, J. A. Knaff, and P. Chand, 2013: A soft-computing cyclone intensity prediction scheme for the Western North Pacific Ocean. Atmosph. Sci. Lett., 14(3),187–192. doi: 10.1002/asl2.438 PDF
Sitkowski, M., J. P. Kossin, C. M. Rozoff, and J. A. Knaff, 2013: Hurricane eyewall replacement cycle thermodynamics and the relict inner eyewall circulation. Mon. Wea. Rev., 140(12), 4035–4045. doi: http://dx.doi.org/10.1175/MWR-D-11-00349.1 PDF
Zhang, M., M. Zupanski, M. – J. Kim, and J. A. Knaff, 2013: Assimilating AMSU-A Radiances in the TC Core Area with NOAA Operational HWRF (2011) and a Hybrid Data Assimilation System: Danielle (2010). Mon. Wea. Rev., 141(11), 3889–3907. doi: http://dx.doi.org/10.1175/MWR-D-12-00340.1 PDF
DeMaria, M., R. T. DeMaria, J. A. Knaff and D. A. Molenar, 2012: Tropical cyclone lighting and rapid intensity change. Mon. Wea. Rev., 140(6), 1828-1842. PDF
Goni, G. J., J. A. Knaff, and I.- I. Lin, 2012: [The Tropics] Tropical cyclone heat potential [in “State of the Climate in 2011”]. Bull. Amer. Meteor. Soc., 93(7), S114-S116. PDF
Rappaport, E. N., J.-G. Jiing, C. W. Landsea, S. T. Murillo, and J. L. Franklin, 2012: The Joint Hurricane Test Bed: Its First Decade of Tropical Cyclone Research-To-Operations Activities Reviewed. Bull. Amer. Meteor. Soc., 93(3), 371–380. doi: http://dx.doi.org/10.1175/BAMS-D-11-00037.1 (citations of J. A. Knaff and M. DeMaria) PDF
Sampson, C..R., A..B. Schumacher, J. A. Knaff, M. DeMaria, E. M. Fukada, C. A. Sisko, D. P. Roberts, K. A. Winters, and H. M. Wilson, 2012: Objective guidance for use in setting tropical cyclone conditions of readiness. Wea. Forecasting, 27(4). 1052–1060. PDF
Vigh, J. L., J. A. Knaff, and W. H. Schubert, 2012: A climatology of hurricane eye formation. Mon. Wea. Rev., 140(5), 1405–1426. doi: http://dx.doi.org/10.1175/MWR-D-11-00108.1 PDF
Goni, G. J., J. A. Knaff, and I .- I. Lin, 2011: [The Tropics] TC heat potential (TCHP) [in “State of the Climate in 2010”]. Bull. Amer. Meteor. Soc., 92(6), S132-S134. PDF
Knaff, J. A., M. DeMaria, D. A. Molenar, C. R. Sampson and M. G. Seybold, 2011: An automated, objective, multi-satellite platform tropical cyclone surface wind analysis. J. Appl. Meteor. Climatol., 50(10), 2149-2166. doi: 10.1175/2011JAMC2673.1 PDF
Knaff, J. A., C. R. Sampson, P. J. Fitzpatrick, Y. Jin, and C. M. Hill, 2011: Simple Diagnosis of Tropical Cyclone Structure via Pressure Gradients. Wea. Forecasting. 26(6), 1020-1031. doi: 10.1175/WAF-D-11-00013.1 PDF
Sampson, C. R., J. Kaplan, J. A. Knaff, M. DeMaria, and C. A. Sisko, 2011: A deterministic rapid intensification aid. Wea. Forecasting, 26(4), 579-585. PDF
Goni, G. J., J. A. Knaff, and I.-I. Lin, 2010: TC heat potential (TCHP) [in “State of the Climate in 2009”]. Bull. Amer. Meteor. Soc., 91(6), S99-S100. PDF
Kaplan, J., M. DeMaria, and J A. Knaff, 2010: A revised tropical cyclone rapid intensification index for the Atlantic and east Pacific basins. Wea. Forecasting, 25(1), 220-241. PDF
Knaff, J. A., D. P. Brown, J. Courtney, G. M. Gallina, and J. L. Beven II, 2010: An Evaluation of Dvorak Technique-Based Tropical Cyclone Intensity Estimates. Wea. Forecasting, 25(5), 1362-1379. PDF
Knaff, J. A., and B. A. Harper, 2010: Tropical cyclone surface wind structure and wind-pressure relationships. Keynote #3, WMO International Workshop on Tropical Cyclones VII, La Reunion, France, 15-20 November, 35pp. PDF
Courtney, J., and J. A. Knaff, 2009: Adapting the Knaff and Zehr Wind-Pressure Relationship for operational use in Tropical Cyclone Warning Centres. Australian Meteorological and Oceanographic Journal, 58(3), 167-179. PDF
DeMaria, M., J. A. Knaff, R. Knabb, C. Lauer, C. R. Sampson, and R. T. DeMaria, 2009: A New Method for Estimating Tropical Cyclone Wind Speed Probabilities. Wea. Forecasting. 24(6), 1573–1591. PDF
Goni, G., M. DeMaria, J. A. Knaff, C. R. Sampson, I. Ginis, F. Bringas, A. Mavume, C. Lauer, I.. – I. Lin, M. M. Ali, P. Sandery, S. Ramos-Buarque, K. Kang, A. Mehra, E. Chassignet, and G. Halliwell, 2009: Applications of Satellite-Derived Ocean Measurements to Tropical Cyclone Intensity Forecasting, Oceanography, 22(3), 190-197. PDF
Goni, G. J, and J. A. Knaff, 2009: Tropical cyclone heat potential [in “State of the Climate in 2008”], Bull. Amer. Met. Soc., 90(8), S54-S57. PDF
Knaff, J. A., 2009: Revisiting the Maximum Intensity of Recurving Tropical Cyclones. [also available on-line at http://www3.interscience.wiley.com/journal/4735/home], Int. J. Climatology, 29(6), 827-837. PDF
Knaff, J. A., and C. R. Sampson, 2009: Southern Hemisphere Tropical Cyclone Intensity Forecast Methods Used at the Joint Typhoon Warning Center, Part I: Control Forecasts Based on Climatology and Persistence. Australian Meteorological and Oceanographic Journal, 58(1), 1-7. PDF
Knaff, J. A., and C. R. Sampson, 2009: Southern Hemisphere Tropical Cyclone Intensity Forecast Methods Used at the Joint Typhoon Warning Center, Part II: Statistical – Dynamical Forecasts. Australian Meteorological and Oceanographic Journal, 58(1), 9-18. PDF
Sampson, C. R. and J. A. Knaff, 2009: Southern Hemisphere Tropical Cyclone Intensity Forecast Methods Used at the Joint Typhoon Warning Center, Part III: Statistical – Consensus Forecasts. Australian Meteorological and Oceanographic Journal, 58(1), 19-27. PDF
Schumacher, A. B., M. DeMaria and J. A. Knaff, 2009: Objective Estimation of the 24-Hour Probability of Tropical Cyclone Formation, Wea. Forecasting, 24(2), 456-471. PDF
Knaff, J. A., T. A. Cram, A. B. Schumacher, J. P. Kossin, and M. DeMaria, 2008: Objective Identification of Annular Hurricanes. Wea. Forecasting, 23(1)17-28. PDF
Knaff, J. A. and R. M. Zehr, 2008: Reply. Wea. Forecasting, 23(4), 762-770. (cf of the Comment) PDF
Sampson, C. R., J. L. Franklin, J. A. Knaff, and M. DeMaria, 2008: Experiments with a Simple Tropical Cyclone Intensity Consensus. Wea. Forecasting, 23(2), 304–312. PDF
DeMaria, M., J. A. Knaff and C. R. Sampson, 2007: Evaluation of long-term trend in tropical cyclone intensity forecasts. Meteor. Atmos Phy., 97, 19-28. PDF
Knaff, J. A., C. R. Sampson, M. DeMaria, T. P. Marchok, J. M. Gross, and C. J. McAdie, 2007: Statistical Tropical Cyclone Wind Radii Prediction Using Climatology and Persistence. Wea. Forecasting, 22(4), 781–791. PDF
Knaff, J. A., and R. M. Zehr, 2007: Reexamination of Tropical Cyclone Pressure Wind Relationships. Wea Forecasting, 22(1), 71–88. PDF
Kossin, J. P., J. A. Knaff, H. I. Berger, D. C. Herndon, T. A. Cram, C. S. Velden, R. J. Murnane, and J. D. Hawkins, 2007: Estimating hurricane wind structure in the absence of aircraft reconnaissance. Wea. Forecasting, 22(1), 89–101. PDF
Sampson, C. R., J. A. Knaff and E. M. Fukada, 2007: Operational Evaluation of a Selective Consensus in the Western North Pacific Basin. Wea. Forecasting, 22(3), 671-675. PDF
Zehr, R. M., and J. A. Knaff, 2007: Atlantic major hurricanes, 1995-2005 – Characteristics based on best track, aircraft, and IR images. J. of Climate, 20(24), 5865-5888. PDF
Bessho, K., M. DeMaria, and J. A. Knaff, 2006: Tropical Cyclone Wind Retrievals from the Advanced Microwave Sounder Unit (AMSU): Application to Surface Wind Analysis. J. Appl. Meteor. Climatol., 45(3), 399 – 415. PDF
Chen, S. S., J. A. Knaff, and F. D. Marks, Jr., 2006: Effects of Vertical Wind Shear and Storm Motion Tropical Cyclone Rainfall Asymmetries Deduced from TRMM. Mon. Wea. Rev., 134(11), 3190-3208. PDF
DeMaria, M,. J. A. Knaff, and J. Kaplan. 2006: On the Decay of Tropical Cyclone Winds Crossing Narrow Landmasses. J. Appl. Meteor. Climatol., 45(3), 491–499. PDF
Demuth, J. L., M. DeMaria, and J. A. Knaff, 2006: Improvement of Advanced Microwave Sounding Unit Tropical Cyclone Intensity and Size Estimation Algorithms, J. Appl. Meteor. Climatol., 45(11), 1573–1581. PDF
Landsea, C. W., B. A. Harper, K. Hoarau, and J. A. Knaff, 2006: Can we detect trends in extreme tropical cyclones? Science, 313(5786), 452-454. PDF
Lindsey, D. T., D. W. Hillger, L. D. Grasso, J. A. Knaff, and J. F. Dostalek, 2006: GOES Climatology and Analysis of Thunderstorms with Enhanced 3.9 µm Reflectivity. Mon. Wea. Rev., 134(9), 2342–2353. PDF
Mueller, K. J., M. DeMaria, J. A. Knaff, and T.H. Vonder Haar, 2006: Objective Estimation of Tropical Cyclone Wind Structure from Infrared Satellite Data. Wea Forecasting, 21(6), 990–1005. PDF
DeMaria, M., M. Mainelli, L. K. Shay, J. A. Knaff, and J. Kaplan, 2005: Further Improvement to the Statistical Hurricane Intensity Prediction Scheme (SHIPS). Wea. Forecasting, 20(4), 531–543. PDF
Ferraro, R. R., P. Pellegrino, M. Turk, W. Chen, S. Qui, R. J. Kuligowski, S. J. Kusselson, A. Irving, S. Q. Kidder, and J. A. Knaff, 2005: The Tropical Rainfall Potential (TRaP) Technique. Part 2: Validation. Wea. Forecasting, 20(4), 465-475. PDF
Kidder, S. Q., S. J. Kusselson, J. A. Knaff, R. R. Ferraro, R. J. Kuligowski, and M. Turk, 2005: The Tropical Rainfall Potential (TRaP) Technique. Part 1: Description and Examples. Wea. Forecasting, 20(4), 456-464. PDF
Knaff, J. A., C. R. Sampson, and M. DeMaria, 2005: An operational statisical typhoon intensity prediction scheme for the Western North Pacific. Wea. Forecasting, 20(4), 688–699. PDF
Demuth, J. L., M. DeMaria, J. A. Knaff, and T. H. Vonder Haar, 2004: Validation of an advanced microwave sounder unit (AMSU) tropical cyclone intensity and size estimation algorithm, J. App. Met., 43(2), 282-296. PDF
Knaff, J. A. , S. A. Seseske, M. DeMaria, and J. L. Demuth, 2004: On the Influences of Vertical Wind Shear on Symmetric Tropical Cyclone Structure Derived from AMSU. Mon. Wea. Rev., 132(10), 2503-2510. PDF
Chase, T. N., J. A. Knaff, R. A. Pielke, and E. Kalnay, 2003: Changes in Global Monsoon Circulations Since 1950. Natural Hazards, 29, 229-254. PDF
Knaff, J. A., M. DeMaria, C. R. Sampson, and J. M. Gross, 2003: Statistical, Five-Day Tropical Cyclone Intensity Forecasts Derived from Climatology and Persistence. Wea. Forecasting, 18(2), 80-92. PDF
Knaff, J. A., J. P. Kossin, and M. DeMaria, 2003: Annular Hurricanes. Wea. Forecasting, 18(2), 204-223. PDF
Weaver, J. F., J. A. Knaff, D. E. Bikos, G. Wade, and J. M. Daniels, 2002: Reply. Wea. Forecasting, 17(5), 1118-1127. PDF
Weaver, J. F., J. A. Knaff, D. E. Bikos, G. Wade, and J. M. Daniels, 2002: Satellite observations of a severe supercell thunderstorm on 24 July 2000 taken during the GOES-11 Science Test. Wea. Forecasting,17(1), 124-138. PDF
DeMaria, M., J. A. Knaff, and B. H. Connell, 2001:A tropical cyclone genesis parameter for the Tropical Atlantic. Wea. Forecasting, 16(2), 219-233. PDF
Pielke, R. A., T. N. Chase, T. G. F. Kittel, J. A. Knaff, and J. Eastman, 2001: Analysis of 200 mb zonal wind for the period 1958-1997. J. Geophys. Res.,106(D21) (D21): 27287-27290. PDF
Chase, T. N., R. A. Pielke, J. A. Knaff, T. G. G. Kittel, and J. L. Eastman, 2000: A comparison of Regional Trends in 1979-1997 depth-averaged tropospheric temperatures. Int. J. Climatol., 20, 503-518. PDF
Knaff, J. A., and J. F. Weaver, 2000: A mesoscale low-level thunderstorm outflow boundary associated with Hurricane Luis. (Picture of the Month), Mon. Wea. Rev., 128(9), 3352-3355. PDF
Knaff, J. A., R. M. Zehr, M. D. Goldberg, and S. Q. Kidder, 2000: An example of temperature structure differences in two cyclone systems derived from the Advance Microwave Sounder Unit. Wea. Forecasting, 15(4),476-483. PDF
Landsea, C. W., and J. A. Knaff, 2000: How much skill was there in forecasting the great 1997-98 El Nino?, Bull. Amer. Meteor. Soc., 81(9), 2107-2119. PDF
Landsea, C. W., R. A. Pielke, Jr., A. M. Mestas-Nunez, and J. A. Knaff, 1999: Atlantic basin hurricanes: Indices of climatic changes. Climatic Change, 42, 89-129. PDF
Knaff, J. A., 1998: Predicting summertime Caribbean pressure in early April. Wea. Forecasting, 13(3), 740-752. PDF
Pielke, R. A., J. Eastman, T. N. Chase, J. A. Knaff, and T. G. F. Kittel, 1998: 1973-1996 trends in depth-averaged tropospheric temperature, J. of Geophysical Research, 103(D14), 16,927-16,934. PDF
Pielke, R. A., J. Eastman, T. N. Chase, J. A. Knaff, and T. G. F. Kittel, 1998: Correction to: 1973-1996 trends in depth-averaged tropospheric temperature. J. of Geophysical Research, 103(D22, 28), 909-911. PDF
Knaff, J. A., 1997: Implications of summertime sea level pressure anomalies in the tropical Atlantic region. J. Climate, 10(4), 789-804. PDF
Knaff, J. A., and C. W. Landsea, 1997: An El Nino—Southern Oscillation climatology and persistence (CLIPER) forecasting scheme. Wea. Forecasting, 12(3), 633-652. PDF
Fitzpatrick, P., J. A. Knaff, C. W. Landsea, and S. Finley, 1995: Documentation of a systematic bias in the aviation model’s forecast of the Atlantic tropical upper tropospheric trough: Implications for tropical cyclone forecasting. Wea. Forecasting, 10(2), 433-446. PDF
Gray, W. M., J. D. Sheaffer, and J. A. Knaff, 1992: Hypothesized Mechanism for Stratospheric QBO Influence on ENSO Variability. Geophys. Res. Let., 19(2), 107-110. PDF
Gray, W. M., J. D. Sheaffer, and J. A. Knaff, 1992: Influence of the Stratospheric QBO on ENSO Variability. J. Meteor. Soc. of Japan, 70, 975-995. PDF
Chavas, D., and J. A. Knaff, 2021: A Simple Physically-Based Model to Predict the Radius of Maximum Wind from Outer Size. AMS 34th Conference on Hurricanes and Tropical Meteorology Virtual Meeting, 10-14 May.
Chirokova, G., M. DeMaria, J. J. Cione, G. R. Foltz, J. Kaplan, and J. A. Knaff, 2021: SST, SST-cooling, and new predictors in the Operational Statistical Tropical Cyclone Intensity Forecast Models. AMS 34th Conference on Hurricanes and Tropical Meteorology Virtual Meeting, 10-14 May.
Chirokova, G., J. A. Knaff, M. L. Bozeman, R. T. DeMaria, A. Libardoni, J. L. Beven, A. B. Penny, C. Grassotti, and S. Liu, 2021: Use of JPSS and other Polar-Orbiting Satellite Data to Improve Operational Tropical Cyclones Position, Intensity, and Wind Structure Estimates, and Intensity Forecasts. AMS 34th Conference on Hurricanes and Tropical Meteorology Virtual Meeting, 10-14 May.
Helfrich, S. R., J. A. Knaff, C. R. Sampson, C. Jackson, T. Ruff, A. Mouche, F. M. Monaldo, B. C. Zachry, M. Surratt, M. L. Bozeman, M. Brennan, and X. Li, 2021: Evaluation of High-Resolution Tropical Cyclone Wind Speeds from Synthetic Aperture Radar (SAR). 24th Conference on Satellite Meteorology, Oceanography, and Climatology, 10-14 January.
Knaff, J. A., and D. R. Chavas, 2021: Efforts to estimate the radius of maximum winds in tropical cyclones. AMS Fourth Special Symposium on Tropical Meteorology and Tropical Cyclones, 10-14 January.
Knaff, J. A., and C. J. Slocum, 2021: How Astronomers Might Analyze Tropical Cyclone Imagery? AMS 34th Conference on Hurricanes and Tropical Meteorology Virtual Meeting, 10-14 May.
Mouche, A., C. Combot, J. A. Knaff, Y. Zhao, and B. Chapron, 2021: Extensive High-Resolution Sar Data Analysis of Tropical Cyclones: Comparisons with SFMR Measurements and Best-Tracks analysis. AMS 34th Conference on Hurricanes and Tropical Meteorology Virtual Meeting, 10-14 May.
Musgrave, K. D., J. A. Knaff, C. Sampson, and A. Brammer, 2021: A Preliminary Analysis of a Rapid Intensification and Prediction Aid for 2019 and 2020. AMS 34th Conference on Hurricanes and Tropical Meteorology Virtual Meeting, 10-14 May.
Razin, N., P. J. Brown, C. J. Slocum, J. A. Knaff, M. M. Bell, and K. D. Musgrave, 2021: Tropical Cyclone Precipitation, Infrared, Microwave, and Environmental Dataset (TC PRIMED). AMS 34th Conference on Hurricanes and Tropical Meteorology Virtual Meeting, 10-14 May.
Sampson, C., E. A. Serra, J. A. Knaff, and J. Cossuth, 2021: Evaluation of Global Wave Probabilities Consistent with Official Forecasts. AMS 34th Conference on Hurricanes and Tropical Meteorology Virtual Meeting, 10-14 May.
Slocum, C. J., and J. A. Knaff, 2021: Can We Learn How to See inside a Tropical Cyclone from Geostationary Orbit? AMS 34th Conference on Hurricanes and Tropical Meteorology Virtual Meeting, 10-14 May.
Vigh, J. L., C. M. Rozoff, E. A. Hendricks, M. K. Biswas, J. Lin, K. Emmanuel, D. J. Gagne II, I. C. MacDaniel, P. A. Kucera, M. DeMaria, J. A. Knaff, C. R. Sampson, and, R. Rios-Berrio, 2021: A Generalized Rapid Intensification Prediction Framework. AMS 34th Conference on Hurricanes and Tropical Meteorology Virtual Meeting, 10-14 May.
Knaff, J. A., 2020: Tropical WeatherA Developer Perspective. JPSS/GOES-R Proving Ground/Risk Reduction Summit, 24-28 February, College Park, MD.
Musgrave, K. D., J. A. Knaff, and C. R.Sampson, 2020: A Preliminary Analysis of the RIPA and SPICE Models for the 2019 Hurricane Season. (poster), AMS Tropical Meteorology and Tropical Cyclones Symposium, 12-16 January, Boston, MA.
Slocum, C. J., and J. A. Knaff, 2020: Using Geostationary Imagery to Peer through the Clouds Revealing Hurricane Structure. AMS 19th Conference on Artificial Intelligence for Environmental Science, 12-16 January, Boston, MA.
Chirokova, G., J. A. Knaff, M. J. Brennan, D. T. Lindsey, S. D. Miller, R. T. DeMaria, D. W. Hillger, and D. A. Molenar, 2019: Proxy Visible Imagery and Beyond. 2019 Joint Satellite Conference, 28 September – 04 October, Boston, MA.
Knaff, J. A., 2019: Evidence of mid- and upper-level moisture helps TCs beat diurnally. Front Range Tropical Cyclone Workshop, 24 April, National Center for Atmospheric Research (NCAR) Foothills Lab, Boulder, CO.
Knaff, J. A., 2019: Predicting rapid intensity changes in TCs: Operational tools, updates and new initiatives. Rapid Intensification Prediction Aid (RIPA) Collaboration, Naval Research Lab (NRL), 19 June, Monterey, CA.
Knaff, J. A., and D. A. Molenar, 2019: Published Study Mentioned in a Series of Articles about Hurricane Dorian: A study exploring the satellite-based climatology of tropical cyclones (i.e., Knaff et al. 2014) is mentioned explicitly in an article on Weather.com (The Weather Channel). This paper also won the Best Star Paper Award in 2016. https://weather.com/storms/hurricane/news/2019-09-01-dorian-isnt-yet-huge-hurricane-but-may-become-one-this-week The reference to the paper is: Knaff, J. A., S. P. Longmore, and D. A. Molenar, 2014: An Objective Satellite-Based Tropical Cyclone Size Climatology. J. Climate, 27(1), 455-476. doi: http://dx.doi.org/10.1175/JCLI-D-13-00096.1.
Musgrave, K. D., P. J. Brown, and J. A. Knaff, 2019: Exploration of Tropical Cyclone Rapid Intensification Using Hurricane GPROF and Impacts on Statistical-Dynamical Intensity Models. AMS 9th Conference on Transition of Research to Operations, 6-10 January, Phoenix, AZ.
Slocum, C. J., and J. A. Knaff, 2019: Is GOES-R Seeing “Hottish” Convective Towers in Hurricanes? AMS 15th Annual Symposium on New Generation Operational Environmental Satellite Systems, 6-10 January, Phoenix, AZ.
Slocum, C. J., and J. A. Knaff, 2019: What Are the Cloud-Top Microphysical Properties of Tropical Cyclones Telling Us about Intensification? 2019 Joint Satellite Conference, 28 September – 04 October, Boston, MA.
Knaff, J. A., 2018: Satellite Views of the Tropical Cyclone Life Cycle. (poster), WMO Virtual Lab Management Group Meeting, 16-20 July, CIRA, Colorado State University, Fort Collins, CO.
Knaff, J. A., 2018: Toward routine estimation of the radius of maximum wind – the last piece of the structure puzzle. Front Range Tropical Cyclone Workshop, 28 November, Colorado State University, Fort Collins, CO.
Knaff, J. A., and P. Caroff, 2018: Topic 5: Tropical Cyclone Analysis and Remote Sensing. Ninth International Workshop on Tropical Cyclones (IWTC-9), 26 pp., 3-7 December, Honolulu, HI. PDF
Langlade, S., J. Courtney, S. Barlow, T. Birchard, S. D. Kotal, T. Kriat, W. Lee, R. Pasch, U. Shimada, A. Sing, C. R. Sampson, J. A. Knaff, 2018: Sub-Topic 3.3: Intensity change: Operation Perspectives. Ninth International Workshop on Tropical Cyclones (IWTC-9), 36 pp., 3-7 December, 2018, Honolulu, HI. PDF
Sampson, C. R., D. Herndon, B. Strahl, L. Ritchie-Tyo, S. Mishimira, Y. Igarashi, J. A. Knaff, C. Landsea, and J. Courtney, 2018: Sub-Topic 4.1 Analysis and prediction of wind field asymmetry. Ninth International Workshop on Tropical Cyclones (IWTC-9), 15 pp., 3-7 December, Honolulu, HI. PDF
Chirokova, G., M. DeMaria, J. A. Knaff, S. P. Longmore, and J. L. Beven, 2017: ATMS – MiRS: Tropical Cyclone Applications. Clouds Session. JPSS Annual Science Team Meeting, https://www.star.nesdis.noaa.gov/star/meeting_2017JPSSAnnual_agenda.php#tab1, 14-18 August, College Park, MD.
Knaff, J. A., 2017: Update TC guidance at JTWC. Sub-projects include a 7-day climatology and persistence (CLIPER) model, an updated wind radii CLIPER model, a five-day statistical-dynamical wind radii forecast scheme, and an update of their rapid intensification index. US Navy Pacific Command’s Joint Tropical Cyclone (TC) Forecasting Program Assembly, 13-17 February, Honolulu, HI.
Bender, M. A., M. J. Morin, K. Emmanuel, J. A. Knaff, C. R. Sampson, I. Ginis and B. Thomas, 2016: Impact of Storm structure and the environmental conditions in the the Rapid Intensification of Hurricanes Katrina and Patricia. AMS 32nd Conference on Hurricanes and Tropical Meteorology, https://ams.confex.com/ams/32Hurr/webprogram/Paper293687.html, 18-20 April 2016, San Juan, Puerto Rico.
Chirokova, G., M. DeMaria, J. F. Dostalek, R. T. DeMaria, J. A. Knaff, K. D. Musgrave, and J. L. Beven, 2016: Evaluation of the ATMS-MIRS and NUCAPS retrievals in the vicinity of the Tropical Cyclones. AMS 32nd Conference on Hurricanes and Tropical Meteorology, https://ams.confex.com/ams/32Hurr/webprogram/Paper292915.html,, 18-20 April, San Juan, Puerto Rico.
Chirokova, G., J. A. Knaff, R. T. DeMaria, M. DeMaria, and J. L. Beven, 2016: Use of the VIIRS Day-Night Band Imagery for Tropical Cyclone Analysis and Forecasting. AMS 32nd Conference on Hurricanes and Tropical Meteorology (poster), https://ams.confex.com/ams/32Hurr/webprogram/Paper292930.html, 18-20 April, San Juan, Puerto Rico.
DeMaria, M., G. Chirokova, J. A. Knaff, K. D. Musgrave, and M. Bozeman, 2016: Recent Improvements to NHC’s Statistical-Dynamical Tropical Cyclone Intensity Prediction Models. AMS 32nd Conference on Hurricanes and Tropical Meteorology, https://ams.confex.com/ams/32Hurr/webprogram/Paper293479.html, 18-20 April 2016, San Juan, Puerto Rico.
DeMaria, R. T., J. A. Knaff, G. Chirokova, and J. L. Beven, 2016: Automated Objective Tropical Cyclone Eye Detection. AMS 32nd Conference on Hurricanes and Tropical Meteorology, https://ams.confex.com/ams/32Hurr/webprogram/Paper292943.html, 18-20 April, San Juan, Puerto Rico.
Dostalek, J. F., G. Chirokova, J. A. Knaff, S. P. Longmore, R. T. DeMaria, A. B. Schumacher, and C. R. Sampson, 2016: Recent and Future Updates to the Operational, Satellite-Based Tropical Cyclone Products Produced at the Cooperative Institute for Research in the Atmosphere. AMS 32nd Conference on Hurricanes and Tropical Meteorology, https://ams.confex.com/ams/32Hurr/webprogram/Paper293020.html, 18-20 April, San Juan, Puerto Rico.
Knaff, J. A., 2016: Synthetic Hurricane Wind Fields Based on Modeled Winds and Infrared Imagery: Method, Results, and Potential Applications. Front Range Tropical Cyclone Workshop, 24 October, Colorado State University Foothills Campus, Fort Collins, CO.
Knaff, J. A., 2016: Key NESDIS Research and R2O Intended to Improve Hurricane Forecasts. 70th Interdepartmental Hurricane Conference, 14-17 March, Miami, FL.
Knaff, J. A., T. Birner, G. Chirokova, L. Rivoire, and R. T. DeMaria, 2016: Satellite Views of the Tropical Cyclone Lifecycle. 32nd AMS Conference on Hurricanes and Tropical Meteorology (poster), https://ams.confex.com/ams/32Hurr/webprogram/Paper293022.html, 18-20 April 2016, San Juan, Puerto Rico.
Knaff, J. A., G. Chirokova, C. R. Sampson, and M. DeMaria, 2016: Development of Global Statistical-Dynamical Tropical Cyclone Wind Radii and MSLP Guidance. https://ams.confex.com/ams/32Hurr/webprogram/Paper292916.html, 32nd AMS Conference on Hurricanes and Tropical Meteorology, 18-20 April, San Juan, Puerto Rico.
Trabing, B. C., and J. A. Knaff, 2016: Analysis of Hurricanes Using Long-Range Lightning Detection Networks. 32nd AMS Conference on Hurricanes and Tropical Meteorology, https://ams.confex.com/ams/32Hurr/webprogram/Paper293920.html, 18-20 April, San Juan, Puerto Rico.
Wu, T. – C., M. Zupanski, L. D. Grasso, P. Brown, C. D. Kummerow, and J. A. Knaff, 2016: The GSI Capability to Assimilate TRMM and GPM Hydrometeor Retrievals in HWRF. 32nd AMS Conference on Hurricanes and Tropical Meteorology, 18-20 April, San Juan, Puerto Rico.
Wu, T. – C., M. Zupanski, L. D. Grasso, P. Brown, C. D. Kummerow, and J. A. Knaff, 2016: The GSI capability to assimilate TRMM and GPM hydrometeor retrievals in HWRF. JCSDA 14th Technical Review Meeting and Science Workshop on Satellite Data Assimilation (oral presentation given by L. D. Grasso for Ting-Chi Wu). 31 May-2 June, Moss Landing, CA.
Musgrave, K. D., J. A. Knaff, C. J. Slocum, L. D. Grasso, and M. DeMaria, 2016: Examination of tropical cyclone structure through synthetic satellite brightness temperatures. 20th Conference on Integrated Observing and Assimilation Systems for the Atmosphere, Oceans, and Land Surface (IOAS-AOLS), AMS Annual Meeting (poster), 10-14 January 2016, New Orleans, LA.
Camargo, S., J. A. Knaff, and D. Chavas, 2015: The relationship of tropical cyclone size with ENSO. 2015 AGU Fall Meeting, 14-18 December, San Francisco, CA.
Chirokova, G., R. T. DeMaria, J. F. Dostalek, K. D. Musgrave, and J. A. Knaff, 2015: Use of JPSS ATMS, CrIS, and VIIRS data to Improve Tropical Cyclone Track and Intensity Forecasting. 2015 AGU Fall Meeting (oral). 14-18 December, San Francisco, CA.
DeMaria, R. T., G. Chirokova, J. A. Knaff, and J. F. Dostalek, 2015: Machine Learning Algorithms for Tropical Cyclone Center Fixing and Eye Detection. 20th Conference on Satellite Meteorology and Oceanography, 4-8 January, Phoenix, AZ. PDF
Musgrave, K. D., J. A. Knaff, M. DeMaria, C. J. Slocum, L. D. Grasso, A. B. Schumacher, and W. H. Schubert, 2015: Hurricane Forecast Improvement Project – Model post-processing and evaluation. CMMAP Team Meeting, 6 August, Fort Collins, CO.
Musgrave, K. D., C. J. Slocum, J. A. Knaff, and L. D. Grasso, 2015: Verification of HWRF Synthetic Satellite Brightness Temperatures. NOAA/NCAR/CSU TC Workshop, 21 July, Boulder, CO.
Tourville, N., and J. A. Knaff, 2015: Understanding Tropical Cyclone Cloud-top Microphysical Relationships using CloudSat and A-Train data. 2015 AGU Fall Meeting (poster),14-18 December, San Francisco, CA.
Beven, J. L., M. J. Brennan, H. D. Cobb III, M. DeMaria, J. A. Knaff, A. B. Schumacher, C. S. Velden, S.A. Monette, J. P. Dunion, G. J. Jedlovec, K. K. Fuell, and M. J. Folmer, 2014: The Satellite Proving Ground at the National Hurricane Center. 31st Conference on Hurricanes and Tropical Meteorology, 30-March-4 April, San Diego, CA.
Knaff, J. A., 2014: ATCF: Lessons learned on TC consensus forecasting. International Cooperative for Aerosol Prediction (ICAP) Validation Workshop at NCAR, 21 October, Boulder, CO.
Knaff, J. A., M. Bell, J. C. L. Chan, K. T. F. Chan, H. – C. Kuo, C. – S. Lee, W. – C. Lee, C. M. Rozoff, K.Wood, and C. R. Sampson, 2014: Special Focus Session SF 4a Objective structure analysis, WMO International Workshop on Tropical Cyclones VIII, 23 pp., 2-8 December, Jeju Island, Republic of Korea,
Knaff, J. A., M. DeMaria, S. P. Longmore, and R. T. DeMaria, 2014: Improving Tropical Cyclone Guidance Tools by Accounting for Variations in Size. 31st Conference on Hurricanes and Tropical Meteorology. 30 March-4 April, San Diego, CA. PDF
Knaff, J. A., S. P. Longmore, and D. A. Molenar, 2014: Improved Estimates of Tropical Cyclone Surface Wind Structure from Routine Satellite reconnaissance. NOAA Satellite Science Week.
Knaff, J. A., S. P. Longmore, and R. T. DeMaria, 2014: An Improved Method to Estimate Tropical Cyclone Surface Wind Fields from Routine Satellite Reconnaissance. 31st Conference on Hurricanes and Tropical Meteorology. 30-March-4 April, San Diego, CA.
Longmore, S. P., A. B. Schumacher, J. D. Dostalek, R. T. DeMaria, G. Chirokova, J. A. Knaff, M. DeMaria, D. Powell, A. Sigmund, and W. Yu, 2014: Lessons Learned From the Deployment and Integration of a Microwave Sounder Based Tropical Cyclone Intensity and Surface Wind Estimation Algorithm into NOAA/NESDIS Satellite Production Operations. UCAR Software Engineering Assembly, 7-11 April, Boulder, CO.
Sampson, C. R., J. A. Knaff, J. Courtney, B. Strahl, F. Fujita, N. Koide, O. Bousquet, T. Dupont, M. Brennan, V. Tallapragada, T. Marchok, S. G. Gopalakrishnan, B. Chen, M. Mohapatra, S. D. Kotal, U. C. Mohanty, M. Fiorino, J. Doyle, and R. Elsberry, 2014: Topic 2.7 Advances in intensity guidance, MO International Workshop on Tropical Cyclones VIII, 26 pp., 2-8 December, Jeju Island, Republic of Korea.
Schumacher, A. B., M. DeMaria, J. A. Knaff, L. Ma, and H. Syed, 2014: Updates to the NESDIS Tropical Cyclone Formation Probability Product. 31st Conference on Hurricanes and Tropical Meteorology. 30-March-4 April, San Diego, CA.
Apodaca, K., M. Zupanski, M. Zhang, M. DeMaria, J. A. Knaff, G. DeMaria, and L. D. Grasso, 2013: Evaluating the potential impact of assimilating satellite lightning data utilizing hybrid variational ensemble methods, AMS Ninth Annual Symposium on Future Operational Environmental Satellite Systems, 6-10 January, Austin, TX.
DeMaria, M., A. B. Schumacher, J. A. Knaff, and R. L. Brummer, 2013: Improvements in Statistical Tropical Cyclone Forecast Models: A Year 2 Joint Hurricane Testbed Project Update. 67th Interdepartmental Hurricane Conference, 4-8 March, College Park, MD.
Knaff, J. A., R. L. Brummer, M. DeMaria, C. W. Landsea, M. Brennan, R. Berg, and J. Schauer, 2013: Development of a Real-Time Automated Tropical Cyclone Surface Wind Analysis: A Year 2 Joint Hurricane Testbed Project Update.  67th Interdepartmental Hurricane Conference, 4-8 March, College Park, MD.
Knaff, J. A., M. DeMaria, S. P. Longmore, and C. R. Sampson, 2013: Examination of Global Satellite-Based Tropical Cyclone Size Variations. AMS 20th Conference on Applied Climatology, 6-10 January, Austin TX.
Longmore, S. P., J. A. Knaff, and M. DeMaria, 2013: A Pseudo Object Oriented netCDF Application Interface Layer to “Simplify” Access to Satellite and Future Atmospheric Datasets. AMS 29th Conference on Environmental Information Processing Technologies, 6-10 January, Austin, TX.
Beven, J. L., M. Brennan, H. Cobb, M. DeMaria, J. A. Knaff, C. S. Velden, J. P. Dunion, and G. Jedlovec, 2012: The 2011 GOES-R Proving Ground at the National Hurricane Center.66th Interdepartmental Hurricane Conference, March 5-8, Charleston, SC.
DeMaria, M., J. A. Knaff, J. L. Beven, M. Brennan, S. D. Miller, A.B. Schumacher, R. T. DeMaria, J. F. Dostalek, and D. Welsh, 2012: Applications of Joint Polar Satellite System (JPSS) Imagers and Sounders to Tropical Cyclone Track and Intensity Forecasting, 2012 NOAA Satellite Science Week, 30 April-4 May, Kansas City, MO.
DeMaria, M., A. B, Schumacher, J. A. Knaff, and R. L. Brummer, 2012: Improvements in Statistical Tropical Cyclone Forecast Models: A Year 1 Joint Hurricane Testbed Project Update. 66th Interdepartmental Hurricane Conference, March 5-8, Charleston, SC.
Folmer, M. J., A. L. Molthan, K. K. Fuell, J. A. Knaff, J. M. Sienkiewicz, E. Danaher, J. Kibler, D. R. Novak, B. Reed, J. L. Beven II, and M. DeMaria, 2012: The Use of the RGB Airmass Product at the HPC, OPC, NHC, and SAB GOES-R Proving Grounds during the 2011 Atlantic Hurricane Season. AMS 30th Conference on Hurricanes and Tropical Meteorology, 15-20 April, Ponte Vedra Beach, FL.
Kaplan, J., C. M. Rozoff, C. R. Sampson, J. P. Kossin, C. S. Velden, M. DeMaria, and J. A. Knaff, 2012: Assessing the predictability of tropical cyclone rapid intensification as a function of forecast lead-time using the SHIPS rapid intensification index. AMS 30th Conference on Hurricanes and Tropical Meteorology, 15-20 April, Ponte Vedra Beach, FL.
Knaff, J. A., R. L. Brummer, M. DeMaria, C. W. Landsea, and J. Franklin, 2012: Development of a Real-Time Automated Tropical Cyclone Surface Wind Analysis: A Year 1 Joint Hurricane Testbed Project Update. 66th Interdepartmental Hurricane Conference, March 5-8, Charleston, SC.
Knaff, J. A., M. DeMaria, D. W. Hillger, D. T. Lindsey, D. A. Molenar, J. L. Beven II, M. J. Brennan, H.D. Cobb III, R. L. Brummer, A.B. Schumacher, J. Dunion, K. K. Fuell, A. L. Molthan, and C. S. Velden, 2012: Overview of the GOES-R Proving Ground Activities at National Hurricane Center, AMS 30th Conference on Hurricanes and Tropical Meteorology, 16-20 April, Ponte Vedra Beach, FL
Knaff, J. A, M. DeMaria, C. R. Sampson, J. E. Peak, J. Cummings and W. H. Schubert, 2012: The upper ocean’s thermal response to tropical cyclones. 30th Conf. on Hurr. And Trop. Met., April 15-20, Ponte Vedra Beach, FL. (available online at: https://ams.confex.com/ams/30Hurricane/webprogram/Paper204597.html)
Knapp, K. R., J. A. Knaff, and C. R. Sampson, 2012: Inter-comparison of climatological TC winds and pressures in the Western North Pacific. AMS 30th Conference on Hurricanes and Tropical Meteorology, 15-20 April, Ponte Vedra Beach, FL.
Peak, J. E., C. R. Sampson, J. Cummings, J. A. Knaff, M. DeMaria, and W. H. Schubert, 2012: An Upper Ocean Thermal Field Metrics Dataset. AMS 30th Conference on Hurricanes and Tropical Meteorology, 15-20 April, Ponte Vedra Beach, FL.
Sampson, C. R., A. B. Schumacher, J. A. Knaff, M. DeMaria, E. M. Fukada, C. Sisko, D. P. Roberts, K. A. Winters, and H. M. Wilson, 2012: An Objective Aid for DoD Base Preparations in Advance of Tropical Cyclones. AMS 30th Conference on Hurricanes and Tropical Meteorology, 15-20 April, Ponte Vedra Beach, FL.
Schumacher, A. B., M. DeMaria, K. D. Musgrave and J. A. Knaff, 2012: Development of a Hybrid Statistical-Dynamical Wind Speed Probability Model. 66th Interdepartmental Hurricane Conference, March 5-8, Charleston, SC.
Sitkowski, M., J. P. Kossin, C. M. Rozoff, and J. A. Knaff, 2012: Thermodynamic Evolution of the Hurricane Inner-Core during Eyewall Replacement Cycles and Ramifications of the Relict Wind Maximum. AMS 30th Conference on Hurricanes and Tropical Meteorology, 15-20 April, Ponte Vedra Beach, FL.
Zhang, F., Y. Weng, X. Ge, and J. A. Knaff, 2012: Performance of Cloud-permitting Hurricane Prediction through Assimilating High-resolution Airborne Doppler Radar and Satellite-derived Inner-core Observations. 30th AMS Conference on Hurricanes and Tropical Meteorology, 15-20 April, Ponte Vedra Beach, FL.
Zhang, M., M. Zupanski, M. – J. Kim, and J. A. Knaff, 2012: All-sky radiance assimilation using NOAA operational HWRF and a regional hybrid ensemble-variational data assimilation system. Warn-on-Forecast and High Impact Weather Workshop, 8-9 February, Norman, OK.
Zupanski, M., K. Apodaca, M. Zhang, L. D. Grasso, G. DeMaria, and J. A. Knaff, 2012: Utility of GOES-R Geostationary Lightning Mapper (GLM) using Hybrid Variational-Ensemble Data Assimilation in Regional Applications. NOAA Satellite Science Week Meeting, 30 April–4 May, Kansas City, MO.
Zupanski M., L. D. Grasso, J. A. Knaff, K. Apodaca, and M. Zhang, 2012: Utility of GOES-R Geostationary Lightning Mapper (GLM) using Hybrid Variational-Ensemble Data Assimilation in Regional Applications. NOAA Satellite Science Week 2012, April 30-May 4, 2012, Kansas City, MS. [Available at
http://www.goes-r.gov/downloads/2012-Science-Week/posters/tues/14_Zupanski.pdf]
Apodaca, K., M. Zupanski, J. A. Knaff, and L. D. Grasso, 2011: Assimilation of MSG-SEVIRI cloudy radiances into MLEF-HWRF as a GOES-R ABI proxy. JCSDA 9th Workshop on Satellite Data Assimilation, 24-25 May, College Park, MD.
DeMaria, M., J. A Knaff, M. J. Brennan, J. L. Beven, R. T. DeMaria, A. B. Schumacher, J. Kaplan, and N. W. S. Demetriades, 2011: Tropical cyclone rapid intensity change forecasting using lightning data during the 2010 GOES-R Proving Ground at the National Hurricane Center. AMS Fifth Conference on the Meteorological Applications of Lightning Data, 23-27 January, Seattle, WA.
Hansen, J., C. R. Sampson, P. A. Wittmann, M. DeMaria, and J. A. Knaff, 2011: Covarying TC-forced wind speed/wave height probabilities. AMS Seventh Annual Symposium on Future Operational Environmental Satellite Systems, 23-27 January, Seattle, WA.
Schumacher, A. B., M. DeMaria, J. A. Knaff, L. Zhao, and T. Schott, 2011. NPP Microwave Sounder-Based Tropical Cyclone Products. 65th Interdepartmental Hurricane Conference, 28 February–3 March Miami, FL.
DeMaria, M., and J. A. Knaff, 2011: TC rapid intensity forecasting. GOES-R Risk Reduction Annual Review, September.
Hillger, D. W., T. J. Schmit, A. S. Bachmeier, M. M. Gunshor, J. A. Knaff, and D. T. Lindsey, 2011: NOAA science test results from the GOES-14 and -15 imager and sounder. AMS Seventh Annual Symposium on Future Operational Environmental Satellite Systems, (poster), 22-27 January, Seattle, WA. PDF
Knaff, J. A., 2011: New Tropical Cyclone Intensity Forecast Tools for the Western North Pacific. Joint Typhoon Warning Center, 13 September, Pearl Harbor, HI.
Knaff, J. A., 2011: Overview of CIRA and NESDIS Global TC Services. WMO Southern Hemisphere TC Workshop, Melbourne, Australia (via remote webinar), 14 September.
Knaff, J. A., 2011: A presentation proposing the promotion of the Multi-platform Tropical Cyclone Surface Wind Analysis (MTCSWA) was presented to the NOAA/NESDIS/Satellite Products and Services Review Board (SPSRB.
Knaff, J. A., M. DeMaria, J. Kaplan, C. M. Rozoff, J. Kossin, and C. S. Velden, 2011: Improvements to statistical intensity forecasts.  65th Interdepartmental Hurricane Conference, 28 February-3 March, Miami, FL.
Lindsey, D. T., D. W. Hillger, D. A. Molenar, J. A. Knaff, M. DeMaria, S. D. Miller, R. L. Brummer, L. D. Grasso, S. Q. Kidder, D. E. Bikos, J. Braun, B. H. Connell, E. J. Szoke, H. Gosden, K. P. Micke, and R. T. DeMaria, 2011: GOES-R Proving Ground Product Development at CIRA, NWA 36th Annual Meeting and GOES User Conference, 17-21 October, Birmingham, AL.
Brummer, R. L., C. L. Combs, B. H. Connell, M. DeMaria, R. T. DeMaria, J. F. Dostalek, L. D. Grasso, D. W. Hillger, J. A. Knaff, D. Zupanski, and D. T. Lindsey, 2010: GOES-R mesoscale product development at CIRA and STAR/RAMMB. AMS 6th Annual Symposium on Future National Operational Environmental Satellite Systems-NPOESS and GOES-R, 16-21 January, Atlanta, GA.
DeMaria, M., J. A., Knaff, R. T. DeMaria, J. Kaplan, and N. Demetriades, 2010: Application of Lightning Measurements to Tropical Cyclone Rapid Intensity Change Forecasting. AMS 17th Conference on Satellite Meteorology and Oceanography, 27 September-1 October, Annapolis MD.
Kaplan, J., J. J. Cione, M. DeMaria, J. A. Knaff, J. Dunion, J. F. Dostalek, J. E. Solbrig, J. Hawkins, T. F. Lee, J. Zhang, E. Kalina, and P. Leighton, 2010: Enhancements to the operational SHIPS rapid intensification index. AMS 29th Conference on Hurricanes and Tropical Meteorology, 8-12 May, Tucson, AZ.
Knaff J. A., and M. DeMaria, 2010: Rapid Weakening of Non-Landfalling Atlantic Tropical Cyclones. Interdepartmental Hurricane Conference, 1-4 March, Savannah, GA.
Knaff, J. A, M. DeMaria, J. Kaplan, J. P. Dunion, and R. T. DeMaria, 2010: Assessing the impact of total Precipitable water and lightning on SHIPS forecasts. AMS 29th Conference on Hurricanes and Tropical Meteorology, 8-12 May 2010, Tucson, AZ.
Knaff, J. A., and B. A. Harper, 2010: Tropical cyclone surface wind structure and wind-pressure relationships. Keynote #3, WMO International Workshop on Tropical Cyclones – VII, 35 pp., 15-20 November, La Reunion, France.
Miller, S. D., C. L. Combs, S. Q. Kidder, A. K. Heidinger, M. Sengupta, J. A. Knaff, D. W. Hillger, R. L. Brummer, and I. Laszlo, 2010: GOES-based solar energy prediction products for decision makers, AMS First Conference on Weather, Climate, and the New Energy Economy, and 8th Users Forum on Weather and Climate Impacts, 16-21 January, Atlanta GA.
Schumacher A. B, M. DeMaria, J. A. Knaff, C. R. Sampson, and D. P. Brown, 2010: Objective tropical cyclone warning guidance using Monte Carlo wind speed probabilities. AMS 29th Conference on Hurricanes and Tropical Meteorology, 8-12 May, Tucson, AZ.
Seybold, M., M. Turk, M. DeMaria, J. A. Knaff, A. B. Schumacher, C. S. Velden, T. Olander, E. Ebert, S. Q. Kidder, and R. J. Kuligowski, 2010: Operational Tropical Cyclone Satellite Products Available from NOAA/NESDIS/OSDPD. AMS 17th AMS Conference on Satellite Meteorology and Oceanography, 27 September-1 October.Annapolis MD,
Velden C. S., C. Rozoff, A. Wimmers, M. Sitkowski, M. E. Kieper, J. P. Kossin, J. Hawkins, and J. A. Knaff, 2010: An objective method to predict near real time rapid intensification of tropical cyclones using satellite passive microwave observations. AMS 29th Conference on Hurricanes and Tropical Meteorology, 8-12 May, Tucson, AZ.
Brennan, M. J., D. P. Brown, R. D. Knabb, M. DeMaria, A. B. Schumacher, and J. A. Knaff, 2009: Tropical cyclone wind speed probabilities: Operational results and future applications. AMS 23rd Conference on Weather Analysis and Forecasting/19th Conference on Numerical Weather Prediction. 1-5 June, Omaha, NE.
DeMaria, M., S. Q. Kidder, C. R. Sampson, J. A. Knaff, C. Lauer, and C. Sisko, 2009: An Improved Wind Probabability Program: A Year 2 Joint Hurricane Testbed Project Update. 63rd Interdepartmental Hurricane Conference, 2-5 March, St. Petersburg, FL.
DeMaria, M., J. A. Knaff, A. B. Schumacher, J. Kaplan, D. Brown, G. Gallina, and J. Kossin, 2009: Improved GOES Utilization for Tropical Cyclone Forecasting. 63rd Interdepartmental Hurricane Conference, 2-5 March, St. Petersburg, FL.
Knaff, J. A., 2009: Propagating patterns in 6.7 µm imagery in re-intensifying tropical-to-extratropical cyclone transitions. AMS 16th Conference on Satellite Meteorology and Oceanography, 11-15 January, Phoenix, AZ.
Knaff, J. A. 2009: Understanding and (possibly) rectifying historical and regional wind-pressure relationship differences. International Best Track And Climate Stewardship Workshop (IBTrACS) Workshop, 5-7 May, Ashville, NC.
Knaff, J. A., D. Brown, J. Courtney, and M. Gallina, 2009: An Evaluation of Biases and Errors Associated with the Subjective Dvorak Technique 1989-2007. International Best Track and Climate Stewardship (IBTrACS) Workshop, 5-7 May, Ashville, NC.
Knaff, J. A., D. W. Hillger, M. DeMaria, and J. J. Gurka, 2009: Developing GOES-R Tropical Cyclone Products vis Proxies. 63rd Interdepartmental Hurricane Conference, 2-5 March, St. Petersburg, FL.
Brummer, R. L., M. DeMaria, J. A. Knaff, B. H. Connell, J. F. Dostalek, and D. Zupanski, 2008: GOES-R mesoscale product development. AMS 5th GOES Users’ Conference, 21-25 January, New Orleans, LA.
DeMaria, M., S. Q. Kidder, P. Harr, J. A. Knaff, and C. Lauer, 2008: An improved wind probability program: A Joint Testbed Project update. 62nd Interdepartmental Hurricane Conference, 3-7 March, Charleston, SC.
Knaff, J. A., 2008: Rapid tropical cyclone transitions to major hurricane intensity: Structural evolution of infrared imagery. AMS 28th Conference on Hurricanes and Tropical Meteorology, 28 April-2 May, Orlando, FL.
Knaff, J. A., A. Krautkramer, M. DeMaria, and A. B. Schumacher, 2008: New and updated operational tropical cyclone wind products. 62nd Interdepartmental Hurricane Conference, 3-7 March, Charleston, SC.
Mainelli, M., R. D. Knabb, M. DeMaria, and J. A. Knaff, 2008: Tropical cyclone wind speed probabilities and their relationships with coastal watches and warnings issued by the National Hurricane Center. AMS 28th Conference on Hurricanes and Tropical Meteorology, 28 April-2 May, Orlando, FL.
Majumdar, S., J. J. Cione, E. Uhlhorn, G. Cascella, S. D. Aberson, R. Atlas, J. L. Beven, D. P. Brown, J. P. Dunion, C. Fogarty, R. Hart, D. C. Herndon, J. A. Knaff, C. W. Landsea, F. D. Marks, and C. S. Velden, 2008: Analysis of the inner-core characteristics of Noel (2007) during its extratropical transition. AMS 28th Conference on Hurricanes and Tropical Meteorology, 28 April-2 May, Orlando, FL.
Schumacher, A. B., M. DeMaria, J. A. Knaff, and D. P. Brown, 2008: The NESDIS tropical cyclone formation probability product: An overview of past performance and future plans. 62nd Interdepartmental Hurricane Conference, 3-7 March, Charleston, SC.
DeMaria, M., J. A. Knaff, and J. Kaplan, 2007: Improved Statistical Intensity Forecast Models: A Joint Hurricane Testbed Project Year 2 Progress Report. 61st Interdepartmental Hurricane Conference, 5-9 March, New Orleans, LA.
Hillger, D. W., T. Schmit, D. T. Lindsey, J. A. Knaff, and J. D. Daniels, 2007: An overview of GOES-13 science test. AMS 3rd Symposium on Future National Operational Environmental Satellites, 14-18 January, San Antonio, TX.
Knaff, J. A., 2007: Introducing the CIRA/NESDIS – Regional and Mesoscale Meteorology Branch Tropical Cyclone Web Page. 61st Interdepartmental Hurricane Conference, 5-9 March, New Orleans, LA.
Knaff, J. A., M. DeMaria, A. Krautkramer, B. Sampson, and G. J. Goni, 2007: Introducing the CIRA/NESDIS – Regional and Mesoscale Meteorology Branch Tropical Cyclone Web Page. 61st Interdepartmental Hurricane Conference, 5-9 March, New Orleans, LA.
Knaff, J. A., M. DeMaria, and C. Lauer, 2007: Verification of the Monte Carlo Tropical Cyclone Wind Speed Probabilities: A Joint Hurricane Testbed Project Update. 61st Interdepartmental Hurricane Conference, 5-9 March 2007, New Orleans, LA.
Knaff, J. A., C. Guard, J. P. Kossin, T. Marchok, B. Sampson, T. Smith, and N. Surgi, 2007: Operational guidance and skill in forecasting structure change. Sixth Int. Workshop on Tropical Cyclones, WMO Tech. Doc. 1383. [Available online at http://severe.worldweather.org/iwtc/], 20-30 November, San José, Costa Rica.
Landsea C. W., B. A. Harper, K. Hoarau, and J. A. Knaff, 2007: Can we detect climate trends in extreme tropical cyclones?, AMS Forum: Climate Change Manifested by Changes in Weather, 14-18 January, San Antonio, TX.
Schumacher, A. B., M. DeMaria, J. A. Knaff, A. Irving, and N. Merckle, 2007: A New Tropical Cyclone Formation Product: Operational Implementation for the Atlantic and Eastern Pacific in 2006 and Extension to the Western N. Pacific in 2007. 61st Interdepartmental Hurricane Conference, 5-9 March, New Orleans, LA. .
Schumacher, A. B., J. A. Knaff, T. Cram, M. DeMaria, and J. P. Kossin, 2007: Operational implementation of an objective annual hurricane index. 61st Interdepartmental Hurricane Conference, 5-9 March 2007, New Orleans, LA.
Cram, T., J. A. Knaff, and M. DeMaria, 2006: Objective Identification of Annular Hurricanes Using GOES and Reanalysis Data. AMS 27th Conference on Hurricanes and Tropical Meteorology. 24-28 April, Monterey, CA.
DeMaria, M., K. S. Maclay, and J. A. Knaff, 2006: Tropical cyclone structure analysis: a multi-sensor approach. AGU Fall Meeting, 11–15 December 2006, San Francisco, CA.
Hillger, D. W., T. J. Schmit,D. T. Lindsey, J. A. Knaff, and J. M. Daniels, 2006: An Overview of GOES-N Science Test. AMS 14th Conference on Satellite Meteorology and Oceanography. 29 January-3 February, Atlanta, GA.
Knaff, J. A., 2006: Diagnosing tropical cyclone structure from satellite-based methods.  Risk Prediction Prediction Initiative Research Workshop, Hamilton, Bermuda.
Knaff, J. A., 2006: Real-time forecasting of the wind structure: Current capabilities and challenges. Risk management solutions.  Eyewall Symposium, 12 October, New York, NY.
Knaff, J. A., and M. DeMaria, 2006: Continued development of tropical cyclone wind probability products, 60th Interdepartmental Hurricane Conference, 20-24 March, Mobile, AL.
Knaff, J. A., and M. DeMaria, 2006: A Multi-platform Satellite Tropical Cyclone Wind Analysis System. AMS 14th Conference on Satellite Meteorology and Oceanography. 29 January-3 February, Atlanta, GA.
Knaff, J. A., C. Guard, J. P. Kossin, T. Marchok, B. Sampson, T. Smith, and N. Surgi, 2006: Topic 1.5: Operational guicance and skill in forecasting structure change. WMO International Workshop on Tropical Cyclones, 20-30 November, San Jose, Costa Rica.
Knaff, J. A., and C. R. Sampson, 2006: Reanalysis of West Pacific tropical cyclone intensity 1966-1987. AMS 27th Conference on Hurricanes and Tropical Meteorology, 24-28 April, Monterey, CA.
Sampson, C. R., J. A. Knaff, and M. DeMaria , 2006: A statistical intensity model consensus for the Joint Typhoon Warning Center. AMS 27th Conference on Hurricanes and Tropical Meteorology, 24-28 April, Monterey, CA.
DeMaria, M., J. A. Knaff, J. L. Demuth, R. M. Zehr, and J. F. Dostalek, 2005: CIRA contributions to the Joint Hurricane Testbed. CIRA Magazine, Spring, 5-7.
DeMaria, M., J. A. Knaff, K. J. Mueller, and R. M. Zehr, 2005: Improvements in Deterministic and Probabilistic Tropical Cyclone Wind Predictions: A Joint Hurricane Testbed Project Update. 59th Interdepartmental Hurricane Conference, 7-11 March, Jacksonville, FL.
Knaff, J. A., 2005: Joint Hurricane Testbed, CIRA Magazine, 24, Fall, 16.
Knaff, J. A., M. DeMaria, R. M. Zehr, and K. J. Mueller, 2005: Development of a Multi-platform Satellite Tropical Cyclone Wind Analysis System. 59th Interdepartmental Hurricane Conference, 7-11 March, Jacksonville, FL.
Knaff, J. A., and C. R. Sampson, 2005: Development of STIPS for the Southern Hemisphere and Indian Ocean. 59th Interdepartmental Hurricane Conference, 7-11 March, Jacksonville, FL.
Mueller, K. J., R. M. Zehr, M. DeMaria, and J. A. Knaff, 2005: Objective Estimation of Tropical Cyclone Wind Structure From Infrared Satellite Data. 59th Interdepartmental Hurricane Conference, 7-11 March, Jacksonville, FL.
Zehr, R. M., M. DeMaria, J. A. Knaff, and K. J. Mueller, 2005: NOAA’s Next-Generation Polar and Geostationary Satellites – Hurricane Applications. 59th Interdepartmental Hurricane Conference, 7-11 March, Jacksonville, FL.
Bessho, K., M. DeMaria, J. A. Knaff, and J. L. Demuth, 2004: Tropical Cyclone Wind Retrievals from the Advanced Microwave Sounding Unit (AMSU): Application to Surface Wind Analysis. AMS 26th Conference on Hurricanes and Tropical Meteorology, 3-7 May, Miami, FL.
Cecil, D., T. A. Jones, J. A. Knaff, and M. DeMaria, 2004: Statistical forecasting of Pacific and Indian Ocean tropical cyclone intensity using 19-, 37-, and 85- GHz brightness temperatures. AMS 26th Conference on Hurricanes and Tropical Meteorology, 3-7 May, Miami, FL.
DeMaria, M., C. W. Anderson, J. A. Knaff, and B. H. Connell, 2004: A New Product for Estimating the Probability of Tropical Cyclone Formation. AMS 26th Conference on Hurricanes and Tropical Meteorology, 3-7 May, Miami, FL.
DeMaria, M., D. W. Hillger, J. F. W. Purdom, R. M. Zehr, H. Gosden, D. L. Watson, J. A. Knaff, D. T. Lindsey, and D. E. Bikos, 2004: Advance Mesoscale Product Development for GOES-R Using Operational and Experimental Satellite Observations. 3rd GOES Users Conference, 10-13 May, Broomfield, CO.
DeMaria, M., J. A. Knaff, J. F. Dostalek, and K. J. Mueller, 2004: Improvements in Deterministic and Probablistic Tropical Cyclone Surface Wind Predictions. 58th Interdepartmental Hurricane Conference, 1-4 March, Charleston, SC.
Gross, J. M., M. DeMaria, J. A. Knaff, and C. R. Sampson, 2004: A New Method for Determining Tropical Cyclone Wind Forecast Probabilities. AMS 26th Conference on Hurricanes and Tropical Meteorology, 3-7 May, Miami, FL.
Knaff, J. A., 2004: Overview of recent operational tropical cyclone forecasting tools developed at CIRA. Joint Typhoon Warning Center, 16 August, Honolulu, HI.
Knaff, J. A., and M. DeMaria, 2004: Development of a Rapid Intensification Index for the Eastern Pacific Basin. 58th Interdepartmental Hurricane Conference, 1-5 March, Charleston, SC.
Knaff, J. A., M. DeMaria, and K. J. Mueller, 2004: Methods to Estimate and Predict Tropical Cyclone Wind Structure: Recent Developments and Future Goals, 58th Interdepartmental Hurricane Conference, 1-5 March, Charleston, SC.
Knaff, J. A., C. R. Sampson, and M. DeMaria, 2004: An introduction to the statistical typhoon intensity prediction scheme (STIPS). AMS 26th Conference on Hurricanes and Tropical Meteorology, 3-7 May, Miami, FL.
DeMaria, M., M. Mainelli, L. K. Shay, J. A. Knaff, and J. P. Kossin, 2003: Improvements in Real-Time Statistical Tropical Cyclone Intensity Forecasts Using Satellite Data. AMS 12th Conference on Satellite Meteorology and Oceanography, CD-ROM, JP1.4., 10-14 February, Long Beach, CA.
Herndon, D., C. S. Velden, J. A. Knaff, K. Brueske, and M. DeMaria, 2003: Evaluation of real-time tropical cyclone intensity estimates from AMSU observations. 57th Interdepartmental Hurricane Conference, 10-15 March, Miami, FL
Knaff, J. A., 2003: Description of the statistical typhoon intensity prediction scheme. Naval Postgraduate School, 11 August, Monterey, CA.
Knaff, J. A., 2003: Research to better diagnos and predict tropical cyclone structure and intensity change, Naval Postgraduate School, 11 August, Monterey, CA.
Knaff, J. A., M. DeMaria, C. R. Sampson, and J. L. Demuth, 2003: Recently developed operational and experimental tropical cyclone intensity and structure guidance for the Western North Pacific. 57th Interdepartmental Hurricane Conference, 10-15 March, Miami, FL
Knaff, J. A., N. Wang, M. DeMaria, and R. M. Zehr, 2003: Transmission of current GOES imagery aboard the NOAA WP-3 aircraft using wavelet compression techniques. CIRA Magazine, 15-17.
Knaff, J. A., N. Wang, R. M. Zehr, M. DeMaria, J. S. Griffin, and F. D. Marks, 2003: A demonstration of real-time transmission and display of GOES imagery aboard the NOAA P-3 aircraft during the 2002 hurricane season. AMS 12th Conference on Satellite Meteorology and Oceanography CD-ROM, JP1.5, 10-14 February, Long Beach, CA.
Reasor, P. D., M. T. Montgomery, F. D. Marks, L. F. Bosart, J. F. Gamache, and J. A. Knaff, 2003: Diagnosing the Role of Convective Hot Towers in Tropical Cyclogenesis Using Airborne Doppler-derived Winds. AMS Simpson Symposium, 10-14 February, Long Beach, CA.
Zehr, R. M., M. DeMaria, J. A. Knaff, K. J. Mueller, and K. Bessho, 2003: Tropical cyclone surface wind analysis using satellite data: Dvorak, microwave, scatterometer, and cloud motion winds. 57th Interdepartmental Hurricane Conference, 10-15 March, Miami, FL.
DeMaria, M., R. M. Zehr, J. P. Kossin, and J. A. Knaff, 2002: The Use of GOES Imagery in Statistical Hurricane Intensity Prediction, AMS 25th Conference on Hurricanes and Tropical Meteorology, 120-121, 29 April-3 May, San Diego, CA.
DeMaria, M., R. M. Zehr, C. S. Velden, J. A. Knaff, J. L. Demuth, and K. F. Brueske, 2002: An Update on Joint Hurricane Testbed (JHT) Projects at CIRA and CIMSS, 56th Interdepartmental Hurricane Conference, 11-15 March, New Orleans, LA.
Demuth, J. L., M. DeMaria, J. A. Knaff, C. S. Velden, and K. F. Brueske, 2002: An Evaluation of CIMSS and CIRA AMSU Tropical Cyclone Intensity Estimation Algorithms. AMS 25th Conference on Hurricanes and Tropical Meteorology, 27-28, 29 April-3 May, San Diego, CA.
Knaff, J. A., 2002: AMSU-based tropical cyclone intensity and structure estimates from CIRA/NESDIS. AMSU Workshop at the WMO International Workshop on Tropical Cyclones, 5 December, Cairns, Australia.
Knaff, J. A., and M. DeMaria, 2002: Current and future tropical cyclone projects at CIRA/NESDIS: An update and outlook. National Hurricane Center, 17 October, Miami, FL
Knaff, J. A., and M. DeMaria, 2002: Statistical Typhoon Intensity Prediction Scheme. Joint Typhoon Warning Center Training, 24 May, Honolulu, HI.
Knaff, J. A., M. DeMaria, and J. L. Demuth, 2002: Tropical cyclone forecast products derived from the Advanced microwave sounding unit. Joint Typhoon Warning Center Training, 24 May, Honolulu, HI.
Knaff, J. A., M. DeMaria, C. R. Sampson, and J. M. Gross, 2002: New Operational Tools to Produce Five-day Tropical Cyclone Intensity Forecasts. 56th Interdepartmental Hurricane Conference, 11-15 March, New Orleans, LA.
Knaff, J. A., J. P. Kossin, and M. DeMaria, 2002: What are Annular Hurricanes? AMS 25th Conference on Hurricanes and Tropical Meteorology, 609-610, 29 April-3 May, San Diego, CA.
Knaff, J. A., and C. S. Velden, 2002: Examining the Eight-Day Evolution of Upper Level Winds in Hurricane Floyd. AMS 25th Conference on Hurricanes and Tropical Meteorology, 37-38, 29 April-3 May, San Diego, CA.
Landsea, C. W., and J. A. Knaff, 2002: How much “skill” was there in forecasting the strong 1997-98 El Nino and 1998-2001 La Nina events? AMS 25th Conference on Hurricanes and Tropical Meteorology, 29 April-3 May, San Diego, CA.
Chase, T. N., J. A. Knaff, and R. A. Pielke, 2001: Trends in global monsoon circulations: Evidence for a diminished hydrological cycle? 12th Symposium on Global Change Studies and Climate Variations – 81st Annual AMS Meeting, 14-19 January, Albuquerque, NM, Amer. Meteor. Soc.
DeMaria, M., J. L. Demuth, and J. A. Knaff, 2001: Validation of an Advanced Microwave Sounder Unit (AMSU) tropical cyclone intensity and size estimation algorithm. AMS 11th Conf. on Satellite Meteorology and Oceanography, 300-303, 15-18 October, Madison, WI.
DeMaria, M., C. S. Velden, J. L. Demuth, J. A. Knaff, S. Q. Kidder, and K. Brueske, 2001: An overview of tropical cyclone applications of advanced microwave sounder unit (AMSU) data. 55th Interdepartmental Hurricane Conf., b-119 – b-123, 5-9 March, Orlando, FL.
Kidder, S. Q., J. A. Knaff, and S. J. Kusselson, 2001: Using AMSU data to forecast precipitation from landfalling hurricanes. AMS Symposium on Precipitation of Extremes: Prediction, Impacts, and Responses,344-346, 14-19 January, Albuquerque, NM.
Kidder, S. Q., S. J. Kusselson, J. A. Knaff, and R. J. Kuligowski, 2001: Improvements to the experimental tropical rainfall potential (TraP) technique. AMS 11th Conference on Satellite Meteorology and Oceanography, 375-378, 15-18 October, Madison, WI.
Knaff, J. A., and C. W. Landsea, 2001: Application of the El Nino–southern Oscillation CLImatology and PERsistence (CLIPER) Forecasting Scheme. Experimental Long–Lead Forecast Bulletin, 10(2), 31-34.
Knaff, J. A., and C. W. Landsea, 2001: Application of the El Ni?o–Southern Oscillation CLImatology and PERsistence (CLIPER) Forecasting Scheme. Experimental Long–Lead Forecast Bulletin, 10(3), 40-42.
Knaff J. A., J. P. Kossin, M. DeMaria, and V. E. Larson, 2001, A discussion of intensities associated with doughnut hurricanes, 55th Interdepartmental Hurricane Conference, 5-9 March, Orlando, FL.
Knaff, J. A., and C. S. Velden, 2001: The evolution of upper level winds in Hurricane Floyd. 55th Interdepartmental Hurricane Conference, 5-9 March, Orlando, FL.
Landsea, C. W., and J. A. Knaff, 2001: Application of the El Nino–southern Oscillation CLImatology and PERsistence (CLIPER) Forecasting Scheme. Experimental Long–Lead Forecast Bulletin, 10(1), 31-33.
Landsea, C. W., and J. A. Knaff, 2001: Application of the El Ni?o–Southern Oscillation CLImatology and PERsistence (CLIPER) Forecasting Scheme. Experimental Long–Lead Forecast Bulletin, 10(4), 41-43.
Landsea, C. W., and J. A. Knaff, 2001: How much “skill” was there in forecasting the strong 1997-98 El Nino and 1998-2000 La Nina events? Climate Variability, the Ocean, and Societal Impacts. AMS 81st Annual Meeting, 14-19 January, Albuquerque, NM.
Weaver, J. F., J. A. Knaff, J. M. Daniels, and G. S. Wade, 2001: Observations of a severe supercell thunderstorm on 24 July using GOES-11 sounder and imagery. AMS 11th Conference on Satellite Meteorology and Oceanography, 397-401, 15-18 October, Madison, WI.
DeMaria, M., B. H. Connell, J. A. Knaff, and R. M. Zehr, 2000: Improvements in tropical cyclone genesis and intensity forecasts using GOES imager and sounder data. 54th Interdepartmental Hurricane Conference, NOAA/OFCM, A98-A103, 14-17 February, Houston, TX.
DeMaria, M., J. A. Knaff, S. Q. Kidder, and M. D. Goldberg, 2000: Tropical cyclone wind retrievals using AMSU-A data from NOAA-15. AMS 10th Conference on Satellite Meteorology and Oceanography,149-152, 14-18 January, Long Beach, CA.
Demuth, J. L., M. DeMaria, J. A. Knaff, and T.H. Vonder Haar, 2000: An objective method for estimating tropical cyclone intensity and structure from NOAA-15 Advanced Microwave Sounding Unit (AMSU) data. AMS 24th Conf. on Hurricanes and Tropical Meteorology, 484-485, 29 May-2 June, Fort Lauderdale, FL.
Dostalek, J. F., M. DeMaria, and J. A. Knaff, 2000: Advanced Microwave Sounding Unit (AMSU) analyses of marine extratropical cyclones. Northwest Weather Workgroup, 3-6 February, Seattle, WA.
Knaff, J. A., M. DeMaria, and J. L. Demuth, 2000: Tropical cyclone forecast products derived from the Advanced Microwave Sounding Unit. 54th Interdepartmental Hurricane Conference, NOAA/OFCM, A104-A109, 14-17 February, Houston, TX.
Knaff, J. A., and C. W. Landsea, 2000: Application of the El Nino–southern Oscillation CLImatology and PERsistence (CLIPER) Forecasting Scheme. Experimental Long–Lead Forecast Bulletin, 9(4), 48-50.
Knaff, J. A., and C. W. Landsea, 2000: Application of the El Nino–southern Oscillation CLImatology and PERsistence (CLIPER) Forecasting Scheme. Experimental Long–Lead Forecast Bulletin, 9(3), 37-39.
Knaff, J. A., and C. S. Velden, 2000: Relationships between the multi-layered wind field and the intensity of Hurricane Floyd. AMS 24th Conference on Hurricanes and Tropical Meteorology, 492-493, 29 May-2 June, Fort Lauderdale, FL.
Landsea, C. W., and J. A. Knaff, 2000: Application of the El Nino–southern Oscillation CLImatology and PERsistence (CLIPER) Forecasting Scheme. Experimental Long–Lead Forecast Bulletin, 9(2), 31-33.
Landsea, C. W., and J. A. Knaff, 2000: Application of the El Nino–southern Oscillation CLImatology and PERsistence (CLIPER) Forecasting Scheme. Experimental Long–Lead Forecast Bulletin, 9(1), 32-34.
Landsea C. W., and J. A. Knaff, 2000: How much “skill” is there in forecasting El Nino?, WeatherZine, 23, 2-4.
Landsea, C. W., and J. A. Knaff, 2000: How much “skill” was there in forecasting the strong 1997-98 El Nino and 1998-2000 La Nina events? AMS 24th Conf. on Hurricanes and Tropical Meteorology, J46, 29 May – 2 June, Fort Lauderdale, FL.
Knaff, J. A., 1999: How much “skill” did the various forecasting methods available have for the 1997 – 98 El Nino event? AMS 23rd Conference on Hurricanes and Tropical Meteorology. 10-15 January, Dallas, TX.
Knaff, J. A., 1999: Tropical cyclone structure as revealed by one-minute satellite imagery.AMS 23rd Conference on Hurricanes and Tropical Meteorology, 186-189, 10-15 January, Dallas, TX.
Knaff, J. A., and C. W. Landsea, 1999: Application of the El Nino–Southern Oscillation CLImatology and PERsistence (CLIPER) Forecasting Scheme. Experimental Long–Lead Forecast Bulletin, 8(1), 29-31.
Knaff, J. A., and C. W. Landsea, 1999: Application of the El Ni?o–Southern Oscillation CLImatology and PERsistence (CLIPER) Forecasting Scheme. Experimental Long–Lead Forecast Bulletin, 8(3), 36-38.
Knaff, J. A., and R. M. Zehr, 1999: Convective asymmetries in mature tropical cyclones associated with motion and vertical wind shear. AMS 23rd Conference on Hurricanes and Tropical Meteorology, 464-467, 10-15 January, Dallas, TX.
Landsea, C. W., and J. A. Knaff, 1999: Application of the El Ni?o–Southern Oscillation CLImatology and PERsistence (CLIPER) Forecasting Scheme. Experimental Long–Lead Forecast Bulletin, 8(2), 39-40.
Landsea, C. W., and J. A. Knaff, 1999: Application of the El Ni?o–Southern Oscillation CLImatology and PERsistence (CLIPER) Forecasting Scheme. Experimental Long–Lead Forecast Bulletin, 8(4), 34-36.
Landsea, C. W. and J. A. Knaff, 1999: How much “skill” did the various forecasting methods available have for the 1997 – 98 El Nino event? AMS 2nd Hayes Symposium on Seasonal and Interannual Climate Change, 10-15 January, Dallas, TX.
Zehr, R. M., M. DeMaria, F. Horsfall, and J. A. Knaff, 1999: Observational tropical cyclone data archive and research. 53rd Interdepartmental Hurricane Conference, 8-12 February, Biloxi, MS.
Knaff, J. A., 1997: Atlantic summertime sea level pressure anomalies and their relationship to seasonal hurricane activity. AMS 22th Conference on Hurricanes and Tropical Meteorology, 276-277, 19-23 May, Ft. Collins, CO.
Knaff, J. A., M. Bell, J. C. L. Chan, K. T. F. Chan, H.-C. Kuo, C.-S. Lee, W.-C. Lee, C. M. Rozoff, K.Wood, and C. R. Sampson, 2014: Special Focus Session SF 4a Objective structure analysis, WMO International Workshop on Tropical Cyclones-VIII, 23 pp., 2-8 December, Jeju Island, Republic of Korea, PDF
Sampson, C. R., J. A. Knaff, J. Courtney, B. Strahl, F. Fujita, N. Koide, O. Bousquet, T. Dupont, M. Brennan, V. Tallapragada, T. Marchok, S. G. Gopalakrishnan, B. Chen, M. Mohapatra, S. D. Kotal, U. C. Mohanty, M. Fiorino, J. Doyle, and R. Elsberry, 2014: Topic 2.7 Advances in intensity guidance, WMO International Workshop on Tropical Cyclones-VIII, 26 pp., 2-8 December, Jeju Island, Republic of Korea. PDF