| 湖北地基GPS大气可降水量变化特征分析及应用 |
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| 引用本文： | 付志康,万蓉,于胜杰,赵娴婷.湖北地基GPS大气可降水量变化特征分析及应用[J].气象科学,2017,37(4):553-560. |
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| 作者姓名： | 付志康 万蓉 于胜杰 赵娴婷 |
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| 作者单位： | 中国气象局 武汉暴雨研究所 暴雨监测预警湖北省重点实验室, 武汉 430074,中国气象局 武汉暴雨研究所 暴雨监测预警湖北省重点实验室, 武汉 430074,中国气象局 武汉暴雨研究所 暴雨监测预警湖北省重点实验室, 武汉 430074,中国气象局 武汉暴雨研究所 暴雨监测预警湖北省重点实验室, 武汉 430074 |
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| 基金项目： | 国家自然科学基金资助项目（41375041），湖北省气象局科技发展基金面上项目（2014Y06） |
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| 摘 要： | 利用探空资料、地基GPS/MET水汽监测资料,对恩施、宜昌、武汉三站地基GPS反演大气可降水量(GPS Precipitable Water Vapor,GPS/PWV)与探空进行了对比,表明GPS/PWV与探空RS/PWV具有良好的一致性。湖北省17站3 a GPS/PWV资料分析表明,GPS/PWV具有明显的月变化及日变化特征,分布具有从南往北逐渐递减,从西至东逐渐增加的特点。强降水个例分析表明GPS/PWV峰值略早于降水以及雷达回波峰值出现时间,高时空分辨率的GPS/PWV配合雷达对天气形势的分析以及降水的判断有一定的指导作用。
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| 关 键 词： | GPS/PWV 月变化 日变化 CAPPI 降水 |
| 收稿时间： | 2016/2/28 0:00:00 |
| 修稿时间： | 2016/7/8 0:00:00 |
Analysis and application of ground-based GPS precipitable water vapor characteristics |
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| FU Zhikang,WAN Rong,YU Shengjie and ZHAO Xianting.Analysis and application of ground-based GPS precipitable water vapor characteristics[J].Scientia Meteorologica Sinica,2017,37(4):553-560. |
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| Authors: | FU Zhikang WAN Rong YU Shengjie and ZHAO Xianting |
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| Institution: | Hubei Key Laboratory for Heavy Rain Monitoring and Warning Research, Institute of Heavy Rain, China Meteorological Administration, Wuhan 430074, China,Hubei Key Laboratory for Heavy Rain Monitoring and Warning Research, Institute of Heavy Rain, China Meteorological Administration, Wuhan 430074, China,Hubei Key Laboratory for Heavy Rain Monitoring and Warning Research, Institute of Heavy Rain, China Meteorological Administration, Wuhan 430074, China and Hubei Key Laboratory for Heavy Rain Monitoring and Warning Research, Institute of Heavy Rain, China Meteorological Administration, Wuhan 430074, China |
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| Abstract: | In order to analyze the spatial and temporal distribution of water vapor in Hubei province, the ground-based GPS atmospheric Precipitable Water Vapor (GPS/PWV) at Enshi, Yichang and Wuhan site were compared with the radiosounde data(RS/PWV) and found that the GPS/PWV has a good consistency with RS/PWV. The three-year GPS/PWV analysis of 17 stations shows that the GPS/PWV has significant monthly and daily variation features, and its distribution diminishes gradually from the south to the north, but increases gradually from the west to the east in Hubei province. A case analysis on heavy precipitation illustrates that the peak value of GPS/PWV appears slightly earlier than that of precipitation and radar echo intensity. GPS/PWV with high spatial and temporal resolution combined with radar is conducive to the overall analysis of the synoptic situation and precipitation information. |
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| Keywords: | GPS/PWV Monthly variation Daily variation CAPPI Precipitation |
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