Category Archives: Dynamics and Physics

Paper on the bumpy ride encountered by Hurricane Hunters in Hurricane Felix released online in Monthly Weather Review

On September 2, 2007, a National Oceanic and Atmospheric Administration Hurricane Hunter airplane flew into Hurricane Felix when it was a category-5 hurricane north of Venezuela. The aircraft measured wind speed of 163 kt (188 mph) at the ocean surface … Continue reading

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HRD Seminar – Prof. John Molinari, University of Albany/SUNY – 7 March 2017

Prof. Molinari presented a seminar on “Outflow Layer Influences on Tropical Cyclones”. A recording of the presentation (audio begins 1 min into recording) is available on the anonymous ftp site: ftp://ftp.aoml.noaa.gov/hrd/pub/blog/seminars/2017/Molinari_HRD_Seminar_20170307.mp4

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Paper on easterly waves in the Eastern Pacific that can form into tropical cyclones published in The Journal of the Atmospheric Sciences

“Easterly waves” are areas of low air pressure in the tropics that move westward and may become tropical cyclones. The most well-known type of easterly wave is the “African easterly wave,” which moves from West Africa north of the equator … Continue reading

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HRD researchers contribute to new textbook on recent advances in tropical cyclone research

The new textbook titled “Advanced Numerical Modeling and Data Assimilation Techniques for Tropical Cyclone Predictions”, was co-edited by HRD scientist Dr. Sundararaman Gopalakrishnan. It is based on a series of lectures by scientists from the US, India and Australia, at … Continue reading

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HRD Monthly Science Meeting of February 2017

February’s science meeting consisted of 7 presentations: Bachir Annane: Impact of Simulated CYGNSS Ocean Surface Winds on Tropical Cyclone Analyses and Forecasts in a Regional OSSE Framework Mark Leidner (AER): Creating Vector Winds from Simulated CYGNSS Ocean Surface Wind Speed Retrievals … Continue reading

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HRD & AOML researchers at 97th American Meteorological Society Annual Meeting, Seattle, WA – 23-27 January 2017

Abstracts and recordings of  the 25 presentations and 6 posters AOML & HRD researchers presented (or were co-authors) at the 97th AMS Annual Meeting are available online from the AMS website: Presentations: Bachir Annane,  B. D. McNoldy, S. M. Leidner, … Continue reading

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HRD scientists participate in HFIP Annual Review, NHC, Miami, FL – 11-12 January 2017

The HFIP program is coordinated through 3 strategic planning teams (Model Development, Data Assimilation/Ensemble, and Post Processing and Verification Development) and 3 tiger teams (High Resolution Physics, Ensemble Product, and Ocean Model Impact). The HFIP strategic planning teams develop our … Continue reading

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HRD & AOML researchers at American Geophysical Union Fall Meeting, San Francisco, CA – 12-16 December 2016

AOML & HRD researchers presented 4 presentations and 2 posters at the 2016 AGU Fall Meeting. Presentations: Robert Atlas, Application of Observing System Simulation Experiments to determining requirements for space-based missions Hua Chen, S. Gopalakrishnan, and J. A. Zhang, The … Continue reading

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Paper on how the region near the ocean surface impacts hurricane forecasts released online in Monthly Weather Review

 Summary: Forecasters and researchers use the Hurricane Weather Research and Forecasting (HWRF) model to forecast where a hurricane will go, how strong it will be, how large it will be, and where the strongest winds are. This paper looks … Continue reading

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HRD Monthly Science Meeting of December 2016

December’s science meeting consisted of 6 presentations: Paul Reasor (HRD):  “Real-time, storm-scale diagnostics derived from Tail Doppler Radar”, Jun Zhang (HRD):  “Recent improvement in physical parameterization of horizontal turbulent mixing in HWRF “, Rob Rogers (HRD):  “Re-writing the Tropical Record … Continue reading

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