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Insect migration case study by polarimetric radar

Markkula, Irmeli; Ojanen, Hannu; Tiilikkala, Kari; Raiskio, Sakari; Pylkkö, Pirkko; Koistinen, Jarmo; Leskinen, Matti and Ooperi, Sini (2008) Insect migration case study by polarimetric radar. Paper at: ERAD 2008 - the fift European conference on radar in meteorology and hydrology, Helsinki, Finland, 30 June - 4 July 2008.

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Online at: http://erad2008.fmi.fi/proceedings/extended/erad2008-0081-extended.pdf

Summary

In this migration event we could observe large insects migrating high in the atmosphere nearly inside precipitation at the cloud base or between precipitative cells. On the other hand, daytime migrants seemed to fill most of the rain free areas. The accuracy of forecasted rain areas is probably never good enough to predict where and when rain would cause the insects to land, and dispersion model may have difficulties in predicting the migration through partially rainy weather. In addition, the highest levels of infestation may occur at rain areas that form barriers for the migrants.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:insect migrations, rain, polarimetric radar
Subjects: Crop husbandry > Crop health, quality, protection
Research affiliation: Finland > Other organizations
Finland > Univ. Helsinki
Finland > MTT Agrifood Research
Deposited By: Koistinen, Riitta
ID Code:14713
Deposited On:26 Sep 2008
Last Modified:12 Apr 2010 07:38
Document Language:English
Status:Published
Refereed:Not peer-reviewed

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