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ASSIMILATION OF OBSERVED SURFACE WIND WITH GRAPES |
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| Authors: | DING Yang ZHUANG Shi-yu and GU Jian-feng |
| Institution: | 1. Shanghai Weather Forecast Center, Shanghai 200030 China;Chinese Academy of Meteorological Sciences, Beijing 100081 China 2. Chinese Academy of Meteorological Sciences, Beijing 100081 China 3. Shanghai Weather Forecast Center, Shanghai 200030 China |
| Abstract: | With the advances of numerical weather simulation and reduced data assimilation updating cycle,surface observation data assimilation becomes more and more important in data assimilation systems.It is widely accepted that a better data assimilation system should contain the restriction of thermodynamic processes in the surface layer.Therefore,in this paper,a new surface wind observation operator is utilized in Global and Regional Assimilation PrEdiction System_3D-Variance(GRAPES_3D-Var),with the restriction ... |
| Keywords: | numerical weather simulation forecast surface wind data assimilation restriction of thermodynamie processes GRAPES |
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