Extracting Migrant Flight Orientation Profiles Using Polarimetric Radar

Seasonal animal migration is characterized by aligned flight of airborne organisms across large spatial expanses. This large-scale alignment results in azimuthal patterns in polarimetric radar products. The following overviews some such patterns and introduces a technique for obtaining vertical prof...

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Veröffentlicht in:	IEEE transactions on geoscience and remote sensing 2015-12, Vol.53 (12), p.6518-6528
Hauptverfasser:	Stepanian, Phillip M., Horton, Kyle G.
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Sprache:	eng
Schlagworte:	Aeroecology Azimuth Morphology NEXRAD Organisms polarimetry Radar imaging Radar polarimetry velocity-azimuth display (VAD)
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creator	Stepanian, Phillip M. Horton, Kyle G.
description	Seasonal animal migration is characterized by aligned flight of airborne organisms across large spatial expanses. This large-scale alignment results in azimuthal patterns in polarimetric radar products. The following overviews some such patterns and introduces a technique for obtaining vertical profiles of migrant flight orientation by exploiting azimuthal symmetries in the polarimetric radar product of copolar correlation coefficient ρHV . This method is compared with several Doppler-velocitybased techniques for measuring flight direction, and a sensitivity analysis is performed. Finally, the method is applied to a case of nocturnal migration over the Southern Great Plains, demonstrating the utility of the technique in the study of animal migratory behavior within the airspace.
doi_str_mv	10.1109/TGRS.2015.2443131
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subjects	Aeroecology Azimuth Morphology NEXRAD Organisms polarimetry Radar imaging Radar polarimetry velocity-azimuth display (VAD)
title	Extracting Migrant Flight Orientation Profiles Using Polarimetric Radar
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