HRD Debrief for missions into Hurricane Barry – 9 August 2019

HRD researchers discussed the results from the 5 P-3 missions into Hurricane Barry, AL02 (10-12 July 2019). The agenda for the discussion was: Agenda: Missions Overview (Jon Zawislak) Deployment Overview (Jon Zawislak) 190710H1 (Rob Rogers) 190711H1 (Frank Marks) 190711H2 (Rob Rogers) 190712H1 (Frank Marks) 190712H2 (Rob Rogers) EMC (Henry Winterbottom) Slides from all presentations are … Continue reading HRD Debrief for missions into Hurricane Barry – 9 August 2019

HRD Monthly Science Meeting of August 2019

August’s science meeting consisted of three presentations: Lidia Cucurull - "An overview of the Global Observing Systems Analysis Group (GOSA)" Andy Hazelton - "HAFSB Performance for TS Barry and Invest 96L" Ghassan 'Gus' Alaka - "AOML Hurricane Model Viewer Demonstration" The three presentations are available on the anonymous ftp site at: ftp://ftp.aoml.noaa.gov/hrd/pub/blog/meetings/2019/Science/HRD_SciMeet_20190808.zip

Paper on how tropical cyclones in shear intensify released online in Geophysical Review Letters

Summary: Tropical cyclones (TCs) are made up of thunderstorms (what we call convection), and these storms have strong winds moving up and down (what we call up- and downdrafts). Dry air enhances evaporative cooling (the same process that cools people when they sweat) from convective downdrafts, reducing the temperature and humidity in low levels; this … Continue reading Paper on how tropical cyclones in shear intensify released online in Geophysical Review Letters

Jun Zhang and Rob Rogers honored with Banner I. Miller Award

The American Meteorological Society has announced that Dr. Jun Zhang, Dr. David S. Nolan, Dr. Robert F. Rogers, and Dr. Vijay S. Tallapragada have won the 2020 Banner I.  Miller Award for their paper, “Evaluating the impact of improvements in the boundary layer parameterization on hurricane intensity and structure forecasts in HWRF,” which significantly advanced … Continue reading Jun Zhang and Rob Rogers honored with Banner I. Miller Award

HRD Seminar – Kelly Nuñez Ocasio, NERTO and Pennsylvania State University – 19 July 2019

Kelly presented a seminar titled “PV budget analysis on high resolution simulations to understand the interaction of AEWs with associated convection". Abstract: The role of convection and associated potential vorticity  (PV) generation have been shown to be significant in the evolution of African Easterly Waves (AEWs); however, how the evolving AEWs lead to tropical cyclogenesis … Continue reading HRD Seminar – Kelly Nuñez Ocasio, NERTO and Pennsylvania State University – 19 July 2019

HRD Seminar – George “Trey” Alvey, CIMAS/HRD – 16 July 2019

Trey presented a seminar titled “How do sheared tropical cyclones evolve towards symmetry before rapid intensification?" ABSTRACT: In seemingly similar environments, some moderately sheared tropical storms undergo rapid intensification (RI) evolving towards more symmetrical precipitation structures but others do not. What role do the vortex tilt, humidification, and precipitation symmetry play in helping distinguish those … Continue reading HRD Seminar – George “Trey” Alvey, CIMAS/HRD – 16 July 2019

HRD Monthly Science Meeting of June 2019

June’s science meeting consisted of eight presentations: George Halliwell: Impact of the Anomalously Warm Gulf of Mexico on Hurricane Michael (2018) Intensity Kathryn Sellwood: How do we get good data from Dropsondes? Nicolas Johnson (Hollings Scholar, UAH): Estimating Hurricane Surface Winds Addison Alford (OU): Structural Changes in the Hurricane Boundary Layer at Landfall Renee Richardson … Continue reading HRD Monthly Science Meeting of June 2019

HRD Seminar – Dr. Isaac Moradi, ESSIC, University of Maryland & NASA/GSFC/GMAO – 19 April 2019

Dr. Moradi presented a seminar titled "Assimilation of Satellite Microwave Observations in the Rainband of Hurricanes Using Bayesian Monte Carlo Technique". ABSTRACT: We propose a novel Bayesian Monte Carlo Integration (BMCI) technique to retrieve the profiles of temperature, water vapor, and cloud liquid/ice water content from microwave cloudy measurements in the rainbands of tropical cyclones … Continue reading HRD Seminar – Dr. Isaac Moradi, ESSIC, University of Maryland & NASA/GSFC/GMAO – 19 April 2019

HRD Monthly Science Meeting of May 2019

May’s science meeting consisted of seven presentations: Kelly Ryan: Projects featuring collaboration and consultation on OSEs, OSSEs, data visualization, and machine learning William Ramstrom: Nest Development for FV3 Michael Fischer: Potential mechanisms for two secondary eyewall formation events in Hurricane Irma (2017) Kelly Nunez (PSU): PV budget analysis of high resolution simulations to understand the … Continue reading HRD Monthly Science Meeting of May 2019