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首页> 外文会议>International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics >Comparison of total cloud cover (ERA-Interim) and precipitation (GPCC) over Mongolia and southern part of Eastern Siberia in July
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Comparison of total cloud cover (ERA-Interim) and precipitation (GPCC) over Mongolia and southern part of Eastern Siberia in July

机译：7月份蒙古和东南西伯利亚东部蒙古和南部的总云覆盖（时代）和降水（GPCC）的比较

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We have compared Total Cloud Cover (TCC) data from ECMWF ERA-Interim reanalysis project and precipitation data from the GPCC project in July over 1979 - 2016. The region of our special interest covers Mongolia and southern part of Eastern Siberia. The models predict TCC. It is subject to errors related to physical parameterizations used in the model and needs to be examined. A precipitation from GPCC is a set of observation data interpolated into regular grid points. Although precipitation is indirectly related to cloudiness, we revealed a good agreement in interannual dynamics between two data sets over the region excluding the period 1982 - 1989 with the poor agreement (overestimated TCC data). This fact allows us to use TCC for the study of atmospheric circulation features over Mongolia and southern part of Eastern Siberia in the years with the good agreement of data. We revealed that precipitation intensity in the region depends on East Asian summer monsoon intensity. We also revealed that the atmospheric blocks over Eastern Siberia (90°E - 120°E) were observed for high TCC values and positive precipitation anomalies over the Selenga River basin (1990 and 1993) and there were no blocks over Eastern Siberia for low TCC values and negative precipitation anomalies (1980 and 2007).
机译：我们在7月1979年7月，从ECMWF ERA-Interim Reany分析项目和GPCC项目的降水数据进行了比较了总云覆盖（TCC）数据。我们的特殊兴趣区域涵盖了西伯利亚东部的蒙古和南部。模型预测TCC。它受到模型中使用的物理参数化相关的错误，并且需要检查。 GPCC的降水是插入常规网格点的一组观察数据。虽然降水间接与云，但我们透露了在与差的协议（高估TCC数据）中的该地区的两个数据集之间的持续动态良好。这一事实使我们能够在多年来，在蒙古和西伯利亚东部的蒙古和南部的几年内使用TCC来研究大气循环特征。我们透露，该地区的降水强度取决于东亚夏季季风强度。我们还透露，在Selenga River盆地（1990年和1993年）的高TCC值和阳性降水异常（1990年和1993年），观察到东西伯利亚的大气块（90°E-120°E），并且在南部的Siberia没有障碍值和负降水异常（1980和2007）。

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