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Heading variations resolve the heading-direction ambiguity in vertical-beam radar observations of insect migration

Drake, V. Alistair; Hao, Zhenhua; Warrant, Eric

Description

Vertical-beam entomological radars provide precise measurements of the body alignment of individual overflying insects but are unable to distinguish which of the two axial directions the insect is heading towards. Insects migrating at altitude typically show common alignment, although with a broad spread. We show here that when observations from multiple individual insects are available, and the insects have airspeeds of about 2 ms–1 or greater, the spread in heading directions allows the...[Show more]

CollectionsANU Research Publications
Date published: 2021
Type: Journal article
URI: http://hdl.handle.net/1885/276123
Source: International Journal of Remote Sensing
DOI: 10.1080/01431161.2021.1883202
Access Rights: Open Access



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