| 云南大理暴雨天气过程GPS大气可降水量特征分析 |
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| 引用本文： | 董保举,王明栋,刘建平,等.云南大理暴雨天气过程GPS大气可降水量特征分析[J].云南地理环境研究,2013(5):79-83. |
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| 作者姓名： | 董保举 王明栋 刘建平 等 |
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| 作者单位： | [1]大理国家气候观象台,云南大理671003 [2]云南大学大气科学系,云南昆明650091 [3]普洱市气象局,云南普洱665000 |
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| 基金项目： | 云南省气象局预报员技术开发专项（YB201210）和中国气象局行业专项（GYHY201006054）共同资助. |
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| 摘 要： | 应用云南大理地基GPS观测站的数据反演得到的1h间隔GPS大气可降水量资料和自动气象站逐时降水资料,分析了云南大理地区4次暴雨过程的GPS大气可降水量的演变特征.结果表明,云南大理地区的暴雨天气过程中GPS大气可降水量呈现明显的1～2天的增湿过程和1～2次跃变过程,跃变过程与降水发生和结束有较好的关系,可为短期预报提供一个明确的水汽演变指标.
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| 关 键 词： | 地基GPS 水汽 暴雨 |
ANALYSIS THE FEATURE OF PRECIPITABLE WATER VAPOR DERIVED FROM GROUND-BASED GPS ON A RAINSTORM WEATHER IN DALI CITY OF YUNNAN PROVINCE |
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| DONG Bao-ju,WANG Ming-dong,LIU Jian-ping,YANG Shun.ANALYSIS THE FEATURE OF PRECIPITABLE WATER VAPOR DERIVED FROM GROUND-BASED GPS ON A RAINSTORM WEATHER IN DALI CITY OF YUNNAN PROVINCE[J].Yunnan Geographic Environment Research,2013(5):79-83. |
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| Authors: | DONG Bao-ju WANG Ming-dong LIU Jian-ping YANG Shun |
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| Institution: | 1. Dali National Climatic Station, Dali 671003, Yunnan, China; 2. Department of Atmospheric Science, Yunnan University, Kunming 650091, Yunnan, China; 3. Meteorological Bureau of Puer City, Puer 665000, Yunnan , China) |
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| Abstract: | Based on the precipitation with l h interval from automatic weather stations, the evolution features of the precipitable water vapor derived from ground - based GPS during 4 rainstorm processes are analyzed. The result shows that the precipitable water vapor derived from round -based GPS always appears evidently wetting process from one to two days and water vapor jumps once to twice before precipitation beginning. The precipitable water vapor derived from ground -based GPS during the rainstorm abrupt variation corresponds to beginning and ending of precipitation. So the precipitable water vapor derived from ground - based GPS can exhibit a clear index of water vapor evolution during the rainstorm in arid for short range weather forecast. |
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| Keywords: | ground - based GPS rainstorm vapor |
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