降维投影四维变分同化系统(DRP-4DVar) 在WRF模式上的构建和初步试验 甘少华,李俊,闫炎,张友姝 (空军气象中心,北京市100843) 摘要:为了获得更准确的数值预报产品,通常需要获得更准确的模式初值和提高预报模式的性能。其中,资料同化过程就 是求解最接近真实大气的途径。80年代以来,变分同化逐步成为资料同化的主流方法。
A new weakly coupled data assimilation (CDA) system based on the dimension‐reduced projection fourヾimensional variational data assimilation (DRPVar) with a simplified off﹍ine localization technique and a fully coupled model, i.e., the Grid﹑oint Version 2 of Flexible Global Ocean〢tmosphere...
必应词典为您提供drp-4dvar的释义,网络释义: 降维投影四维变分同化方法;降维投影四维变分同化;
利用经济省时的降维投影四维变分同化方法(DRP.4DVar),在2009年7月22~23日江淮流域的一次大 暴雨过程中同化晴空条件下高光谱大气红外探测仪(AIRS)反演温度、湿度廓线,改进此次强降水过程的模拟。 试验结果分析显示,同化AIRS反演的温度及湿度场后,基于四维变分同化系统的模式约束,能够改进湿度场、 ...
利用经济省时的降维投影四维变分同化方法(DRP- 4DVar),在2009年7月22～23日江淮流域的一次大暴雨过程中同化晴空条件下高光谱大气红外探测仪(AIRS)反演温度,湿度廓线,改进此次强 降水过程的模拟.试验结果分析显示,同化AIRS反演的温度及湿度场后,基于四维变分同化系统的模式约束,能够改进湿度场,高度场,高低层散度场....
Comparing three DRP-4DVar schemes having the analysis time at the start, middle, and end of the assimilation window, respectively, it is found that the scheme with the analysis time in the middle of the window outperforms the others, on the whole. Moreover, the advantage of this scheme ...
Decadal predictionClimate variabilityA new coupled data assimilation (CDA) system based on dimension-reduced projection four-dimensional variational data assimilation (DRP-4DVar) for decadal predictions is developed and applied to a fully coupled model FGOALS-g2, which applies a fast online localization...
Sensitivity of the DRP-4DVar performance to perturbation samples obtained by two different methods[J].Acta Meteorologica Sinica,2010,(05):527-538.Zhao, J.; Wang, B. Sensitivity of the DRP-4DVar performance to perturbation samples obtained by two different methods. J. Meteorol. Res. 2010, 24...
Comparing three DRP-4DVar schemes having the analysis time at the start, middle, and end of the assimilation window, respectively, it is found that the scheme with the analysis time in the middle of the window outperforms the others, on the whole. Moreover, the advantage of this scheme ...
Wang, and J. Liu, 2011: Impact of analysis-time tuning on the performance of the DRP-4DVar approach, Adv. Atmos. Sci., 28(1), 207-216.Impact of Analysis-time Tuning on the Performance of the DRP-4DVar Approach[J]. 赵娟,王斌,刘娟娟.Advances in Atmospheric Sciences. 2011(01)...