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| 区域气候模式垂直分辨率对我国夏季降水模拟的影响 | |
| 引用本文： | 曾新民,刘金波,宋帅,骆燕,马柱国,王汉杰.区域气候模式垂直分辨率对我国夏季降水模拟的影响[J].水动力学研究与进展(A辑),2009,24(1). |
| 作者姓名： | 曾新民 刘金波 宋帅 骆燕 马柱国 王汉杰 |
| 作者单位： | 1. 教育部中尺度灾害性天气重点实验室,南京大学,南京,210093;解放军理工大学气象学院军事气象系,南京,211101 2. 解放军理工大学气象学院军事气象系,南京,211101 3. 中国科学院东亚区域气候-环境重点实验室,北京,100029 |
| 基金项目： | 国家自然科学基金，国家重点基础研究发展规划(973计划) |
| 摘 要： | 该文采用区域气候模式RegCM3和NCEP再分析资料,选取3种垂直分辨率、3种水平分辨率,就垂直分辨率对区域气候模式模拟我国5年(2000-2004年)夏季降水的影响进行了评估.得到的主要结论如下:从5年季、月平均降水模拟来看,总体上三个方案模拟降水都偏高,随着垂直分辨率提高,模拟降水量更接近观测,各子区域对分辨率呈现更大的敏感性;月平均降水的敏感性更甚于季平均;随着垂直分辨率提高,模拟降水与实测的空间相关系数不一定也增大;即使对区域气候模拟,30km或更高的水平分辨率也有助于提高降水模拟;垂直分辨率的提高可能存在一个敏感范围,超过该范围时,改进模拟的效果不明显;为提高模拟精度且权衡计算花费,提高垂直分辨率比提高水平分辨率更为有效. |
| 关 键 词： | 区域气候模式 夏季降水 垂直分辨率 影响评估 |
Effects of vertical resolution on simulation of summer precipitation in China by a regional climate model |
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| ZENG Xin-min,LIU Jin-bo,SONG Shuai,LUO Yan,MA Zhu-guo,WANG Han-jie.Effects of vertical resolution on simulation of summer precipitation in China by a regional climate model[J].Journal of Hydrodynamics,2009,24(1). | |
| Authors: | ZENG Xin-min LIU Jin-bo SONG Shuai LUO Yan MA Zhu-guo WANG Han-jie |
| Affiliation: | 1.Key Laboratory for Mesoscale Severe Weather of Ministry of Education;Nanjing University;Nanjing 210093;China;2.Institute of Meteorology;P.L.A.University of Science and Technology;Nanjing 211101;3.Key Laboratory of Regional Climate-Environment Research for Temperate East Asia;Chinese Academy of Sciences;Beijing 100029;China |
| Abstract: | Using the regional climate model RegCM3 and the NCEP re-analysis data,and choosing 3 vertical resolutions and 3 horizontal resolutions,the effects of vertical resolution on the 5-year(2000-2004) long simulation of summer precipitations were evaluated in the paper.Main conclusions are obtained as follows:(1)the 5-year-mean seasonal and monthly precipitations show,as a whole,to be all overestimated by the 3 vertical-resolution schemes,and to be closer to observations as vertical resolutions are increased,whil... |
| Keywords: | regional climate model summer precipitation vertical resolution evaluation of effects |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
