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| WRF耦合4个陆面过程对“6.19”暴雨过程的模拟研究 | |
| 引用本文： | 张瑛,肖安,马力,王欢,马中元,周芳.WRF耦合4个陆面过程对“6.19”暴雨过程的模拟研究[J].气象,2011,37(9). |
| 作者姓名： | 张瑛 肖安 马力 王欢 马中元 周芳 |
| 作者单位： | 1. 中国气象局武汉暴雨研究所,武汉430074／江西省气象台,南昌330046 2. 江西省气象台,南昌,330046 3. 江西省气象科学研究所,南昌,330046 4. 江西省抚州市气象台,344000 |
| 基金项目： | 中国气象局武汉暴雨研究所暴雨研究开放基金(IHR2009K03); 财政部/科技部公益类行业专项(GYHY200906010); 国家自然科学基金(41075034); 江西省气象局重点项目(JXQX2010Z03) |
| 摘 要： | 利用WRF模式与4个陆面过程的耦合,对2010年6月19—20日的暴雨过程进行了数值模拟,并分析陆面过程对暴雨强度和范围的敏感性。结果显示：WRF耦合4个陆面过程模拟的雨带和实况分布一致,均为东西向的雨带形状,且均预报出与实况资料相似的强降水中心。在无陆面方案情况下,强降水中心的位置、范围、强度等都发生明显变化。另外地表径流预报量和降水趋势表现一致,由于土壤含水量趋于饱和,多余的降水分配给地表径流,这种剧增的地表径流也是洪水暴涨、水位上升的重要原因。在较湿的土壤状况下,由于净辐射增长,有利于产生厚度更小的边界层高度以及更大的地表向上潜热通量,这也是导致本次降水过程异常增幅的一个重要原因。 |
| 关 键 词： | 暴雨 陆面过程 初始土壤湿度 潜热通量 数值模拟 |
Simulation of the 19 June 2010 Heavy Rainfall Event by Using WRF Coupled with Four Land Surface Processes |
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| ZHANG Ying XIAO An MA Li WANG Huan MA Zhongyuan ZHOU Fang Wuhan Institute of Heavy Rain,China Meteorological Administration,Wuhan Jiangxi Provincial Meteorological Observatory,Nanchang Jiangxi Meteorological Science Institute,Nanchang Fuzhou Meteorological Observatory of Jiangxi,Fuzhou.Simulation of the 19 June 2010 Heavy Rainfall Event by Using WRF Coupled with Four Land Surface Processes[J].Meteorological Monthly,2011,37(9). | |
| Authors: | ZHANG Ying XIAO An MA Li WANG Huan MA Zhongyuan ZHOU Fang Wuhan Institute of Heavy Rain China Meteorological Administration Wuhan Jiangxi Provincial Meteorological Observatory Nanchang Jiangxi Meteorological Science Institute Nanchang Fuzhou Meteorological Observatory of Jiangxi Fuzhou |
| Institution: | ZHANG Ying~(1,2) XIAO An~2 MA Li~2 WANG Huan~2 MA Zhongyuan~3 ZHOU Fang~4 1 Wuhan Institute of Heavy Rain,China Meteorological Administration,Wuhan 430074 2 Jiangxi Provincial Meteorological Observatory,Nanchang 330046 3 Jiangxi Meteorological Science Institute,Nanchang 330046 4 Fuzhou Meteorological Observatory of Jiangxi,Fuzhou 344000 |
| Abstract: | The heavy rainfall which occurred from 19 to 20 June 2010,was simulated by using WRF model coupled with four land surface processes.The sensitivity of land surface process to the intensity and range of heavy rainfall was analyzed.The results show that the rain bands simulated by four land surface processes coupled with WRF are accordance with the observations,as well as the simulated strong precipitation centers are also in phase with the observations.The lack of land surface scheme leads to the obvious shi... |
| Keywords: | heavy rainfall event land surface process initial soil moisture latent heat flux numerical simulation |
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