On the potential of sub-mm passive MW observations from geostationary satellites to retrieve heavy precipitation over the Mediterranean Area
| Autor: | Bizzarro Bizzarri, C. M. Medaglia, F. Baordo, A. Mugnai, S. Pinori |
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| Přispěvatelé: | EGU, Publication |
| Rok vydání: | 2006 |
| Předmět: |
Brightness
lcsh:Dynamic and structural geology Meteorology Conjunction (astronomy) lcsh:QE1-996.5 Sampling (statistics) General Medicine lcsh:Geology Atmospheric radiative transfer codes lcsh:QE500-639.5 [SDU.STU] Sciences of the Universe [physics]/Earth Sciences Geostationary orbit Environmental science lcsh:Q Precipitation lcsh:Science Image resolution Microwave Remote sensing |
| Zdroj: | Advances in Geosciences, Vol 7, Pp 387-394 (2006) |
| ISSN: | 1680-7359 |
| Popis: | The general interest in the potential use of the mm and sub-mm frequencies up to 425 GHz resolution from geostationary orbit is increasing due to the fact that the frequent time sampling and the comparable spatial resolution relative to the "classical" (≤89 GHz) microwave frequencies would allow the monitoring of precipitating intense events for the assimilation of rain in now-casting weather prediction models. In this paper, we use the simulation of a heavy precipitating event in front of the coast of Crete island (Greece) performed by the University of Wisconsin - Non-hydrostatic Modeling System (UW-NMS) cloud resolving model in conjunction with a 3D-adjusted plane parallel radiative transfer model to simulate the upwelling brightness temperatures (TB's) at mm and sub-mm frequencies. To study the potential use of high frequencies, we first analyze the relationships of the simulated TB's with the microphysical properties of the UW-NMS simulated precipitating clouds, and then explore the capability of a Bayesian algorithm for the retrieval of surface rain rate, rain and ice water paths at such frequencies. |
| Databáze: | OpenAIRE |
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