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Tytuł pozycji:

Dynamical downscaling of a multimodel ensemble prediction system: Application to tropical cyclones.

Tytuł :
Dynamical downscaling of a multimodel ensemble prediction system: Application to tropical cyclones.
Autorzy :
Kaur, Manpreet (AUTHOR)
Krishna, R. Phani Murali (AUTHOR)
Joseph, Susmitha (AUTHOR)
Dey, Avijit (AUTHOR)
Mandal, Raju (AUTHOR)
Chattopadhyay, Rajib (AUTHOR)
Sahai, Atul Kumar (AUTHOR)
Mukhopadhyay, Parthasarathi (AUTHOR)
Abhilash, Sukumarapillai (AUTHOR)
Pokaż więcej
Temat :
*Cyclones
*Weather forecasting
Downscaling (Climatology)
Tropical cyclones
Forecasting
Meteorological research
Źródło :
Atmospheric Science Letters (John Wiley & Sons, Inc. ). Aug2020, Vol. 21 Issue 8, p1-11. 11p.
Czasopismo naukowe
This study attempts dynamical downscaling to improve north Indian ocean (NIO) tropical cyclone prediction from a global multimodel ensemble prediction system using weather research and forecasting (WRF) model. A total of 16 ensembles are used in the WRF simulations, these ensembles are bias‐corrected prior to downscaling for model climatological errors. The ensemble mean constructed from the output of all downscaled ensembles is analyzed for added value to global predictions. This mean is also compared against observation as well as high‐resolution (12 km) deterministic forecast from global forecast system (GFS). Two devastating NIO tropical cyclone cases of year 2017 which were not reliably predicted by global systems have been selected for this study. The results show that downscaled predictions well simulate the intensity and spatial distribution of the rainfall and relative vorticity associated with these cyclonic storms. The wind and temperature vertical profiles during cyclone mature stage are also captured more accurately than raw prediction and high‐resolution global deterministic forecast. The study affirms the adequacy of dynamical downscaling in predicting the cyclonic storms over global real‐time weather forecasting system. [ABSTRACT FROM AUTHOR]
Copyright of Atmospheric Science Letters (John Wiley & Sons, Inc. ) is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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