HRD Seminar – Jonathan Martinez, Colorado State University – 20 August 2019

Jonathan presented a two-part seminar with titles; Part I: "Axisymmetric Potential Vorticity Evolution of Hurricane Patricia (2015)" and Part II: "On the Contributions of Incipient Vortex Circulation and Environmental Moisture to Tropical Cyclone Expansion”. Part I: Axisymmetric Potential Vorticity Evolution of Hurricane Patricia (2015) Abstract Operational numerical models failed to predict the record-setting rapid intensification and … Continue reading HRD Seminar – Jonathan Martinez, Colorado State University – 20 August 2019

HRD observation team monthly meeting – 15 August 2019

The purpose of the observation team meetings is to bring together the people who use observations in their research on a regular basis to discuss issues they’re having, provide updates on observations they’re analyzing or collecting, and any other information that may be of interest to the broader group.  These meetings are also an excellent … Continue reading HRD observation team monthly meeting – 15 August 2019

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

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 Monthly Science Meeting of July 2019

July’s science meeting consisted of two presentations: Hua Leighton: Revisit of Microphysics Observation Paige Brown (Stanford University): Low-cost, Altitude Controlled Latex Balloon for Mapping Atmospheric Data The two presentations are available on the anonymous ftp site at: ftp://ftp.aoml.noaa.gov/hrd/pub/blog/meetings/2019/Science/HRD_SciMeet_20190711.zip

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 Seminar – Jeff Steward, UCLA / National Central University in Taiwan – 25 June 2019

Jeff presented a seminar titled “Solving the Ensemble Square-Root Kalman Filter equations using matrix functions without an actual matrix - the "perfect" large-scale, scalable parallel method to assimilate all-sky satellite radiances in an ensemble” ABSTRACT: All-sky (clear or cloudy) satellite radiances are difficult to assimilate, but have a huge potential to improve NWP forecasts such … Continue reading HRD Seminar – Jeff Steward, UCLA / National Central University in Taiwan – 25 June 2019

HRD Seminar – Addison Alford, University of Oklahoma – 17 June 2019

Addison presented a seminar titled "Radar Observations of Landfalling Hurricanes: Synthesizing Three Years of SMART Radar Missions" ABSTRACT: The Shared Mobile Atmospheric Research and Teaching radars observed five landfalling tropical cyclones (TCs) from 2016-2018. The observations were largely targeted toward understanding asymmetric convective and dynamic processes. Such processes are thought to lead to the intensification … Continue reading HRD Seminar – Addison Alford, University of Oklahoma – 17 June 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