New Paper Comparing ASOS Near-Surface Winds and WSR-88D-Derived Wind Speeds in Landfalling Tropical Cyclones

tc.events

Map of ASOS and WSR-88D sites along with tropical cyclone tracks used in the study. 

A new article in Weather and Forecasting by Krupar et al. entitled “A Comparison of ASOS Near-Surface Winds and WSR-88D-Derived Wind Speed Profiles Measured in Landfalling Tropical Cyclones” may be of interest to some collaborators. The researchers made 22 comparisons during landfalling TC events in the Gulf of Mexico to compare low-level WSR-88D wind data with ASOS surface wind and wind gust observations within 10 km of the RDA. The goal was to develop an empirical relationship to relate the TC boundary layer wind to near surface winds. They found that radar based, site-specific linear regression equations using a 0–200-m layer average wind speed can be used to predict the ASOS 10-m standardized mean wind speed while a non-site-specific linear regression model using a VAD 0–500-m mean boundary layer wind can be used to predict ASOS 10-m nonstandardized gust wind speeds.

http://journals.ametsoc.org/doi/abs/10.1175/WAF-D-15-0162.1

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