Quantifying insect migration across Bohai strait using weather radar.

Weather radars provide continuous recording over extensive spatial coverage, which is valuable for biologists who observe and study biological activities over a wide range of temporal and spatial scales. Through the interpretation of weather radar observations, powerful biological inferences can be obtained. However, when it comes to certain biological problems, such as the determination of biological parameters related to airborne biological densities, weather radar data needs to be processed based on certain assumptions before. This article analyses and calculates the impact of the phenomenon of migratory insects gathering into layers on the interpretation of weather radar data and develops a biomass estimation method with known bio-spatial distribution characteristics. Quantitative research was conducted on the situation of migrating insects across the Bohai Bay in the autumn of 2012. [ABSTRACT FROM AUTHOR]