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Automated Detection of Meteorite Strewnfields in Doppler Weather Radar
Michael Hankey1, Marc Fries2, Rob Matson3
1American Meteor Society, Geneseo, NY.
Planetary and Space Science
|November 18, 2020
Summary
Meteorite recovery is improved by using Doppler weather radar to detect meteorite falls. Automation of radar data analysis allows for faster and more efficient identification of potential meteorite impact sites.
Area of Science:
- Planetary Science
- Meteoritics
- Radar Meteorology
Background:
- Meteorite recovery in the US has been aided by Doppler weather radar for identifying fall zones of fireballs.
- While not all fireballs are detected, some large events leave signatures on Doppler radar, with evidence from 10 recovered falls and over 10 historic falls.
- Meteoritic dust and meteorites have likely been recorded on Doppler weather radar data.
Purpose of the Study:
- To describe processes for the automatic detection of meteorites in NEXRAD Radar Archives.
- To enable automated identification of meteorite fall signatures, reducing manual labor and time.
Main Methods:
- Utilizing recent technological developments by NOAA for task automation.
- Integrating advancements from the American Meteor Society for fireball tracking and plotting.
- Developing processes for fireball triangulation, search area determination, radar interfacing, data extraction, storage, search, detection, and plotting.
Main Results:
- Demonstration of processes for automatic detection of meteorites in radar archives.
- Successful identification of potential meteorite fall signatures through automated analysis.
Conclusions:
- Automation of Doppler weather radar data analysis significantly enhances meteorite recovery efforts.
- Technological advancements enable efficient and widespread detection of meteorites using radar archives.
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