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首页> 外文期刊>SOLA: Scientific Online Letters on the Atmosphere >Climatological Characteristics of Daily Precipitation over Japan in the Kakushin Regional Climate Experiments Using a Non-Hydrostatic 5-km-Mesh Model: Comparison with an Outer Global 20-km-Mesh Atmospheric Climate Model
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Climatological Characteristics of Daily Precipitation over Japan in the Kakushin Regional Climate Experiments Using a Non-Hydrostatic 5-km-Mesh Model: Comparison with an Outer Global 20-km-Mesh Atmospheric Climate Model

机译：在角静地区气候试验中使用非静水5公里网状模型的日本每天降水的气候特征：与全球20公里网状大气模型的比较

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References(12) Cited-By(11) Supplementary materials(1) The climatological characteristics of daily precipitation over Japan in the Kakushin regional climate change experiments using a non-hydrostatic model with a horizontal resolution of 5 km (NHM5km) are investigated from June to October between 1990 and 1999. Comparisons with the results of a global 20-km-mesh atmospheric climate model (AGCM20km), which provides the boundary conditions for NHM5km, show that NHM5km can improve the reproducibility of precipitation characteristics, including the frequencies of intense precipitation and wet days, from those in AGCM20km. Compared with observations, AGCM20km shows -30% and +33% biases in terms of the 10-year mean values of regional maximum precipitation and wet days, respectively, in the region 31°N-38°N and 129.8°E-142.0°E over Japan from June to October; these biases are reduced to +9% and +12% in the case of NHM5km. The largest biases in AGCM20km, overestimation of wet days in July and August, are successfully reduced in NHM5km. Probability density distributions of daily precipitation amount are superior in NHM5km than in AGCM20km for all analysis months, being in strong agreement with a raingauge-based daily precipitation dataset for June-August. These features indicate that NHM5km also provides improved seasonal variations in precipitation characteristics, which are crucial for reliable climate change experiments.
机译：参考文献（12）被引用的文献（11）补充资料（1）自6月以来，使用水平分辨率为5 km（NHM5km）的非静水模型研究了角新地区气候变化实验中日本日降水量的气候特征。到1990年至1999年10月。与提供了NHM5km边界条件的全球20公里网眼大气气候模型（AGCM20km）的比较结果表明，NHM5km可以改善降水特征的可再现性，包括强降水频率。降雨和潮湿的日子，来自AGCM20km的那些。与观测值相比，AGCM20km在31°N-38°N和129.8°E-142.0°区域的区域最大降水和湿天的10年平均值方面分别显示出-30％和+ 33％的偏差。 6月至10月在日本上空E;在NHM5km的情况下，这些偏差减少到+ 9％和+ 12％。 AGHM20km中最大的偏差（7月和8月的湿天高估）已成功减少到NHM5km中。在所有分析月份中，NHM5km的日降水量概率密度分布均优于AGCM20km的概率密度分布，与基于雨量计的6月至8月日降水量数据集高度吻合。这些特征表明，NHM5km还可以改善降水特征的季节性变化，这对于可靠的气候变化实验至关重要。

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