Effects of an assimilation of radar and satellite data on a very-short range forecast of heavy convective rainfalls

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F09%3A00327272" target="_blank" >RIV/68378289:_____/09:00327272 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Effects of an assimilation of radar and satellite data on a very-short range forecast of heavy convective rainfalls

Original language description

An assimilation method of radar reflectivity and satellite data into a NWP model COSMO with a horizontal resolution of 2.8 km and its impact on a very short range forecast of precipitation are presented. The assimilation method corrects of model water vapour mixing ratio using the nudging technique. The correction depends on the difference between model and observed precipitation derived from radar reflectivity and on a cloud classification based on channels 10.8 and 6.2 ?m from the Meteosat Second Generation. Two types of corrections are examined. First approach performs the correction at the same grid point where the difference is calculated. Second approach performs the correction at a grid point advected upwind from the point where the difference is calculated. The results show that the application of advection and satelite data can improve precipitation forecasts.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DG - Atmospheric sciences, meteorology

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Atmospheric Research

ISSN

0169-8095

e-ISSN

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Volume of the periodical

93

Issue of the periodical within the volume

1-3

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

19

Pages from-to

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UT code for WoS article

000267743900019

EID of the result in the Scopus database

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