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Mesoscale Data Assimilation Experiment in the WWRP B08RDP

机译:WWRP B08RDP中的中尺度数据同化实验

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References(10) Cited-By(3) Supplementary materials(1) A mesoscale data assimilation experiment was performed for the Beijing 2008 Olympics Research and Development Project (B08RDP) under the World Weather Research Program (WWRP) conducted during the period around the Beijing 2008 Olympic Games.In this experiment, the Japan Meteorological Agency (JMA) hydrostatic mesoscale 4D-Var analysis system was modified and utilized to produce accurate initial fields over the China area. In addition to the conventional observations, precipitation data observed by rain-gauges were assimilated as well as data produced from a nowcasting system of the Australian Bureau of Meteorology.The analysis system with rainfall data outperformed other experiments, i.e., the mesoscale analysis without precipitation data and the JMA global analysis, with its quantitative precipitation forecast. This shows that the assimilation of precipitation data can have a positive impact on subsequent model forecasts and that it would be effective even for areas where successive rainfall observations are sparse.
机译:参考文献(10)被引用的文献(3)补充材料(1)在北京附近进行的世界天气研究计划(WWRP)下,对北京2008年奥运会研究与发展项目(B08RDP)进行了中尺度数据同化实验。 2008年奥运会。在本实验中,对日本气象厅(JMA)静水中尺度4D-Var分析系统进行了修改,并用于在中国地区产生准确的初始场。除常规观测外,还将雨量仪观测到的降水数据以及澳大利亚气象局临近预报系统产生的数据同化。具有降雨数据的分析系统优于其他实验,即没有降水数据的中尺度分析以及JMA全球分析及其定量降水预测。这表明降水数据的同化可能对随后的模型预报产生积极影响,即使对连续降雨观测稀疏的地区也将是有效的。

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