May 15, 2021

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HRD scientists participate in annual AVAPS Users Group Meeting – Hurricane Research Division

2 min read

The annual meeting, held online this year, brings together developers and users of the Airborne Vertical Atmospheric Profiling System, the basis of the dropwindsondes released in and around tropical cyclones each summer since 1997. The AVAPS dropsondes are released from NOAA and Air Force aircraft to measure high-resolution profiles of temperature, pressure, humidity, and wind velocity. The data are collected by the dropsonde and transmitted back to the aircraft data system via a radio link. The data are then quality controlled and transmitted to the NOAA National Hurricane Center specialists to analyze intensity, and to the Environmental Modeling Center for assimilation into forecast models. These agencies also use the system in other programs, like winter storms, and other nations also use the AVAPS system in their data collection and research.

Five HRD scientists presented work at the meeting. You can access the presentations by clicking on the names below.

Kathryn Sellwood presented an overview of research conducted at HRD with dropwindsonde data during the past year.
Heather Holbach talked about her research on recalibrating the Stepped-Frequency Microwave Radiometer surface wind-speed data using dropwindsonde data at the surface.
Sarah Ditchek spoke about the impact of dropwindsonde data on tropical cyclone forecasts in the Basin-Scale HWRF during 2017-2019.
Joe Cione talked about using the AVAPS system with the next generation of small Uncrewed Aircraft Systems released from NOAA P3 aircraft.
Sim Aberson discussed dropwindsonde data from the most recent hurricane season, some issues with the data quality, and proposed changes to how the data are gathered and quality controlled for the upcoming season.

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2021-05-03 22:55:58

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