 |
| Titel |
Lightning-based propagation of convective rain fields |
| VerfasserIn |
S. Dietrich, D. Casella, F. Paola, M. Formenton, A. Mugnai, P. Sanò |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1561-8633
|
| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 11, no. 5 ; Nr. 11, no. 5 (2011-05-27), S.1571-1581 |
| Datensatznummer |
250009432
|
| Publikation (Nr.) |
 copernicus.org/nhess-11-1571-2011.pdf |
|
|
|
|
|
| Zusammenfassung |
| This paper describes a new multi-sensor approach for continuously
monitoring convective rain cells. It exploits lightning data from
surface networks to propagate rain fields estimated from
multi-frequency brightness temperature measurements taken by the
AMSU/MHS microwave radiometers onboard NOAA/EUMETSAT low Earth
orbiting operational satellites. Specifically, the method allows
inferring the development (movement, morphology and intensity) of
convective rain cells from the spatial and temporal distribution of
lightning strokes following any observation by a satellite-borne
microwave radiometer. Obviously, this is particularly attractive for
real-time operational purposes, due to the sporadic nature of the
low Earth orbiting satellite measurements and the continuous
availability of ground-based lightning measurements – as is the
case in most of the Mediterranean region. A preliminary assessment
of the lightning-based rainfall propagation algorithm has been
successfully made by using two pairs of consecutive AMSU
observations, in conjunction with lightning measurements from the
ZEUS network, for two convective events. Specifically, we show that
the evolving rain fields, which are estimated by applying the
algorithm to the satellite-based rainfall estimates for the first
AMSU overpass, show an overall agreement with the satellite-based
rainfall estimates for the second AMSU overpass. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|