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191001-363513-4F
18-NGI3-59
N/A
10/1/2018
2022-7-31 0:0:0
Active
$480,941.00
Evaluation and Improvements of Tornado Detection Using Infrasound Remote Sensing: Comparative Analysis of Infrasound, Radar, Profiler, and Meteorological Data Sets, and Potential Impacts on NOAA/NWS
Knupp
Kevin
UAH
Coastal Hazards CH
NWS
Improving tornado detection is the goal of researchers who are examining the effectiveness of infrasound, sound at wave frequencies beyond what humans can hear, to detect tornadoes. They are analyzing past tornadic storms to determine if attributes such as lightning and airflow can provide infrasound sources. After analyzing the 3-D airflow of the March 19, 2018 supercell storm and 60 km EF-2 tornado that passed within 10-30 km of three National Center for Physical Acoustics (NCPA) infrasound detector arrays, they found that the entire tornadic phase was detectable by ARMOR radar (University of Alabama at Huntsville), SR3 radar (University of Oklahoma), and the WSR-88D KHTX radar (National Weather Service). Once the dual Doppler analysis is complete, they will analyze lightning characteristics and integrate their findings with available data from wind profiling systems and radiosondes to develop a larger representation of the storm and its environment.
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