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Titel |
Simulation of hailstorm event using Mesoscale Model MM5 with modified cloud microphysics scheme |
VerfasserIn |
P. Chatterjee, D. Pradhan, U. K. De |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
0992-7689
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Digitales Dokument |
URL |
Erschienen |
In: Annales Geophysicae ; 26, no. 11 ; Nr. 26, no. 11 (2008-11-17), S.3545-3555 |
Datensatznummer |
250016292
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Publikation (Nr.) |
copernicus.org/angeo-26-3545-2008.pdf |
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Zusammenfassung |
Mesoscale model MM5 (Version 3.5) with some
modifications in the cloud microphysics scheme of Schultz (1995), has been
used to simulate two hailstorm events over Gangetic Plain of West Bengal,
India. While the first event occurred on 12 March 2003 and the hails
covered four districts of the state of West Bengal, India, the second
hailstorm event struck Srinikatan (22.65° N, 87.7° E) on 10 April 2006 at
11:32 UT and it lasted for 2–3 min. Both these events can be simulated,
if the same modifications are introduced in the cloud microphysics scheme of
Schultz. However, the original scheme of Schultz cannot simulate any hail.
The results of simulation were compared with the necessary products of
Doppler Weather Radar (DWR) located at Kolkata (22.57° N, 88.35° E).
Model products like reflectivity, graupel and horizontal wind are
compared with the corresponding products of DWR. The pattern of hail
development bears good similarity between model output and observation from
DWR, if necessary modifications are introduced in the model. The model
output of 24 h accumulated rain from 03:00 UT to next day 03:00 UT has
also been compared with the corresponding product of the satellite TRMM. |
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