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| Titel |
Evaluation of radiative transfer schemes for mesoscale model data assimilation: a case study |
| VerfasserIn |
A. Memmo, C. Faccani, R. Ferretti, S. Michele, F. S. Marzano |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7340
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| Digitales Dokument |
URL |
| Erschienen |
In: 7th Plinius Conference on Mediterranean Storms (2005) ; Nr. 7 (2006-02-28), S.193-198 |
| Datensatznummer |
250004292
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| Publikation (Nr.) |
 copernicus.org/adgeo-7-193-2006.pdf |
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| Zusammenfassung |
| The assimilation of Special Sensor Microwave Imager (SSM/I) data into the
Mesoscale Model 5 (MM5) allows for improving the weather forecast.
However the results suggested an update the Radiative Transfer
Equation (RTE) within the three-dimensional variational (3DVAR) algorithm
which is tailored for non rainy conditions only. To this purpose, a new RTE
algorithm is tested, in order to account for radiometric response in rainy
regions. The new brightness temperatures (TB) are estimated by
using hydrometeor profiles from the MM5 mesoscale model, running with two
different microphysical parameterizations. The goodness of the results is
assessed by comparing the new TB with those of the original RTE
algorithm in the 3DVAR code and the SSM/I observed data. The results confirm
a better reliability of the new RTE compared to the old one. |
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