Application of three satellite techniques in support of precipitation forecasts of a NWP model

In this study, the efficiency of an integrated operational system, based on three satellite infrared techniques, to support nowcasting and very short range forecasting of high precipitation rates provided by a numerical weather prediction (NWP) model is examined. Three algorithms, one for the detect...

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Bibliographic Details
Published inInternational journal of remote sensing Vol. 26; no. 24; pp. 5393 - 5417
Main Authors Feidas, H., Lagouvardos, K., Kotroni, V., Cartalis, C.
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 20.12.2005
Taylor and Francis
Subjects
Applied geophysics
Earth sciences
Earth, ocean, space
Exact sciences and technology
Hydrology
Hydrology. Hydrogeology
Internal geophysics
Greece
Southern Europe
algorithms
models
detection
efficiency
rainfall
atmospheric precipitation
Europe
Space remote sensing
measurement sensor
clouds
monitoring
convection
techniques
prediction
methodology
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Summary:In this study, the efficiency of an integrated operational system, based on three satellite infrared techniques, to support nowcasting and very short range forecasting of high precipitation rates provided by a numerical weather prediction (NWP) model is examined. Three algorithms, one for the detection and tracking of convective cloud cells and another two for rainfall estimation, are applied on satellite sensor data in order to qualitatively and quantitatively verify the precipitation forecasts provided by a NWP model. The application of the detection and tracking algorithm aims at verifying qualitatively, in real time, the precipitation forecasts by monitoring the detected convective cloud cells, at the same time intervals that the model forecasts are given. The application of the rainfall estimation techniques on satellite sensor data is needed for both quantitative and qualitative cross-comparisons with the model outputs. The developed tool is applied in a case of intense precipitation over Greece. The results of the application are promising and show the potential for the implementation of the integrated system as a support tool for nowcasting and very short range forecasting by performing real-time validation of NWP precipitation forecasts.
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ISSN:0143-1161
1366-5901
DOI:10.1080/01431160500273551