| 热带太平洋中部地区热力异常对我国南方冬季降水影响的数值模拟 |
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| 引用本文： | 赵美艳.热带太平洋中部地区热力异常对我国南方冬季降水影响的数值模拟[J].中国农学通报,2017,33(31):105-111. |
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| 作者姓名： | 赵美艳 |
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| 作者单位： | 重庆市气象信息与技术保障中心 |
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| 基金项目： | 重庆市气象局业务技术攻关团队项目“重庆数值模式应用技术研究”(ywgg-201507)。 |
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| 摘 要： | 为了分析冬季热带太平洋中部海温升高对中国南方冬季降水的影响，本研究利用国际太平洋研究中心的区域气候模式（IPRC-RegCM）对2008年初南方典型的大范围雨雪天气过程进行数值模拟。结果表明：该模式能够较好的模拟出此次持续性降雨（雪）过程的雨带分布。且当在热带太平洋中部海域加入扰动热源后，中国南方大部分地区均以上升气流为主，南海地区水汽输送增强，有利于我国南方雨雪天气的发生。
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| 关 键 词： | 数值模拟，热力异常，冬季降水 |
| 收稿时间： | 2016/9/23 0:00:00 |
| 修稿时间： | 2017/10/7 0:00:00 |
Effect of Marine Thermal Anomalies in Central Tropical Pacific on Winter Precipitation in South China: A Numerical Simulation |
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| Abstract: | The paper aims to analyze the effect of rising SST at the central tropical Pacific Ocean on winter precipitation in south China. We simulated a typical large-scale precipitation in January 2008 by using the Regional Climate Model (RegCM) developed at the International Pacific Research Center (IPRC). The results showed that: this mode could well simulate the persistent rain (snow) process, and when the disturbance heat source in the central tropical Pacific Ocean joined, most parts of south China were mainly dominated by the updraft, and the water vapor transportation was enhanced in South China Sea, which was conducive to the occurrence of rain and snow in south China. |
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| Keywords: | numerical simulation thermal anomaly precipitation in winter |
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