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| Titel |
Discriminating raining from non-raining clouds at mid-latitudes using multispectral satellite data |
| VerfasserIn |
T. Nauss, A. A. Kokhanovsky |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 6, no. 12 ; Nr. 6, no. 12 (2006-11-01), S.5031-5036 |
| Datensatznummer |
250004168
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| Publikation (Nr.) |
 copernicus.org/acp-6-5031-2006.pdf |
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| Zusammenfassung |
| We propose a new method for the delineation of precipitation using cloud
properties derived from optical satellite data. This approach is not only
sufficient for the detection of mainly convective precipitation by means of
the commonly used connection between infrared cloud top temperature and
rainfall probability but enables the detection of stratiform precipitation
(e.g., in connection with mid-latitude frontal systems). The scheme
presented is based on the concept model, that precipitating clouds must have
both a sufficient vertical extent and large enough droplets. Therefore, we
have analysed MODIS scenes during the severe European summer floods in 2002
and retrieved functions for the computation of an auto-adaptive threshold
value of the effective cloud droplet radius with respect to the corresponding
optical thickness which links these cloud properties with rainfall areas on a
pixel basis. |
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