| 三套再分析资料的中国夏季降水日变化特征 |
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| 引用本文： | 戴泽军,宇如聪,李建,陈昊明. 三套再分析资料的中国夏季降水日变化特征[J]. 气象, 2011, 37(1): 21-30 |
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| 作者姓名： | 戴泽军 宇如聪 李建 陈昊明 |
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| 作者单位： | 1. 中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室,北京,100029;中国科学院研究生院,北京,100039
2. 中国气象科学研究院灾害天气国家重点实验室,北京,100081 |
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| 基金项目： | 国家重点基础研究发展计划(2010CB951900); 国家自然科学基金项目(40625014,40921003)共同资助 |
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| 摘 要： | 利用台站观测降水,评估分析了三套再分析(NCEP,ERA40和JRA25)降水资料对中国夏季降水日变化的再现能力.结果表明,三套再分析资料呈现的中国夏季降水日变化特征较观测存在明显偏差.对比台站观测的白天(08-20,北京时)和夜间(20-08时)降水比例.再分析降水在大部分区域都表现为白天较夜间偏多,NCEP和ERA...
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| 关 键 词： | 夏季降水 日变化 再分析资料 |
| 收稿时间： | 2010-08-07 |
| 修稿时间： | 2010-09-27 |
The Characteristics of Summer Precipitation Diurnal Variations in Three Reanalysis Datasets over China |
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| DAI Zejun,YU Rucong,LI Jian and CHEN Haoming. The Characteristics of Summer Precipitation Diurnal Variations in Three Reanalysis Datasets over China[J]. Meteorological Monthly, 2011, 37(1): 21-30 |
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| Authors: | DAI Zejun YU Rucong LI Jian CHEN Haoming |
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| Affiliation: | DAI Zejun~(1,3) YU Rucong~2 LI Jian~2 CHEN Haoming~2 1 State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029 2 State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Sciences,Beijing 100081 3 Graduate School of the Chinese Academy of Sciences,Beijing 100039 |
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| Abstract: | The characteristics of summer precipitation diurnal variations in three reanalysis datasets (NCEP,ERA40 and JRA25) over China were analyzed by comparing with those in station rain gauge observations. Results show that the summer precipitation diurnal variations in the three reanalysis products all present obvious deficiencies.Analyzing the percentages of daytime and nighttime rainfall show that the percentage of the daytime(08-20 BT) rainfall to the whole day rainfall is larger than that of nocturnal(20 -08... |
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| Keywords: | summer precipitation diurnal variations reanalysis dataset |
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