HRD Seminar – Dr. Yair Cohen, California Institute of Technology – 13 November 2018

Dr. Cohen presented a seminar titled “Gradient Non-Balance: A new approach for the outflow at the top of Tropical Cyclones: Theory, models and observations". ABSTRACT: The gradient non-balance is a flow-regime in which the gradient wind balance has no solutions or a given pressure map. This occurs only around a high pressure center, when the … Continue reading HRD Seminar – Dr. Yair Cohen, California Institute of Technology – 13 November 2018

HRD Monthly Science Meeting of September 2018

September’s science meeting consisted of three presentations: Miguel Cortez (NERTO intern) – The impact of Global Hawk Dropsonde Data Assimilated in Both Global and Regional Forecast Models During Hurricane Harvey Jon Poterjoy (Maryland) - Research Applications for the Basin-Scale HWRF Data Assimilation and Forecasting System Andy Hazelton - FV3 Hurricane Nest (HFV3) Development and Analysis … Continue reading HRD Monthly Science Meeting of September 2018

Paper on the impact of Global Hawk dropsondes data on global model forecasts published in Weather and Forecasting

Summary: The Global Hawk, a drone or unmanned aircraft system (UAS), has been used since 2010 to gather data to improve forecasts. The Global Hawk can release dropsondes that measure temperature, pressure, humidity, and wind up to four times every second, starting at an altitude of up to 60,000 feet until it falls to the … Continue reading Paper on the impact of Global Hawk dropsondes data on global model forecasts published in Weather and Forecasting

HRD Monthly Science Meeting of August 2018

August’s science meeting consisted of five presentations: Andrew Kren - HAMSR retrieval assimilation in the GSI system Josh Wadler (UM/RSMAS)- A Characterization of Turbulent Kinetic Energy and its Generation in Idealized Tropical Cyclone Simulations Gus Alaka - The Basin-Scale HWRF: 2018 HFIP Real-Time Demos Miguel Cortez (NERTO intern) – Summer 2018 NERTO update Stan Goldenberg … Continue reading HRD Monthly Science Meeting of August 2018

Paper on combining satellite data and data from the Global Hawk aircraft to improve forecasts published in Weather and Forecasting

Summary: Because satellites are observing the weather all the time, there are almost always satellite data available around hurricanes or tropical cyclones (TCs). On the other hand, Hurricane Hunter aircraft can only reach TCs when the storms are near land and when airplanes and crews are available. When Hurricane Hunter missions are planned, the regular … Continue reading Paper on combining satellite data and data from the Global Hawk aircraft to improve forecasts published in Weather and Forecasting

HRD observation team monthly meeting – 19 July 2018

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 – 19 July 2018

HRD Seminar – Dr. Andrew Kren, CIMAS and AOML/HRD – 27 June 2018

Dr. Kren presented a seminar titled “Observing System Simulation Experiments (OSSEs) and Observing System Experiments (OSEs) to evaluate the impact of current and future observing systems in the NCEP GDAS”. ABSTRACT: Observing System Experiments (OSEs) test the impact of current observing system platforms on analyses and forecasts, while Observing System Simulation Experiments (OSSEs) can evaluate … Continue reading HRD Seminar – Dr. Andrew Kren, CIMAS and AOML/HRD – 27 June 2018

Paper on the impact of dropwindsondes from the Global Hawk on forecasts published in Monthly Weather Review

Summary:  A drone, what we call an unmanned aircraft system, can collect data in tropical cyclones (TCs) to improve forecasts.  Scientists have used the Global Hawk drone that can fly at an altitude of up to 60,000 feet for over 24 hours at a time since 2010. The Global Hawk releases dropwindsondes that measure wind, … Continue reading Paper on the impact of dropwindsondes from the Global Hawk on forecasts published in Monthly Weather Review

AOML and HRD researchers at 33rd AMS Conference on Hurricanes and Tropical Meteorology, Ponte Vedra, FL – 15-20 April 2018

Thirty-one AOML and HRD scientists participated in the recent 33rd AMS Conference on Hurricanes and Tropical Meteorology in Ponte Vedra, FL, as authors or co-authors on 65 presentations and 19 posters. Roughly 783 presentations (507 oral presentations in 67 sessions and 276 posters in 2 session) were submitted to the conference. Of the 567 TC-related presentations … Continue reading AOML and HRD researchers at 33rd AMS Conference on Hurricanes and Tropical Meteorology, Ponte Vedra, FL – 15-20 April 2018