| 邢台市大气水汽及云水变化的降水前兆分析 |
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| 引用本文： | 郝巨飞,高俊喜,杨允凌,赵娜,张建波.邢台市大气水汽及云水变化的降水前兆分析[J].气象研究与应用,2021,42(1):13-19. |
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| 作者姓名： | 郝巨飞 高俊喜 杨允凌 赵娜 张建波 |
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| 作者单位： | 河北省邢台市气象局,河北邢台054000;河北省气象与生态环境重点实验室,石家庄050000;河北省任县气象局,河北任县050150;河北省邢台市气象局,河北邢台054000;河北省气象与生态环境重点实验室,石家庄050000;河北省环境气象中心,石家庄050000 |
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| 基金项目： | 河北省“十三五”气象重点工程—云水资源开发利用工程(hbrywcsy-2017-6)。 |
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| 摘 要： | 利用MWP967KV型地基微波辐射计及红外观测仪探测数据,对邢台市2016年发生降水前的水汽含量(IWV)、液态水含量(ILW)和云底高度变化特征进行了分析。结果表明,云底高度的持续明显下降提前约1h于IWV的明显升高,IWV的明显增加提前约1h于ILW的明显升高;IWV呈持续增加时间≥3h且IWV≥4.00cm,ILW呈明显增加时间≥2h且ILW≥0.669mm,云底高度持续下降时间≥4h,平均降幅≥0.68km/h且云底高度≤1.53km可作为判断未来1h邢台市发生降水的参考指标;在ILW呈多次波动或跃增的情况下,降水发生后的第1h内的雨量会出现明显增加。
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| 关 键 词： | 微波辐射计 水汽含量 液态水总量 云底高度 降水 |
Analysis on the precipitation precursor of atmospheric water vapor and cloud water changes in Xingtai City |
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| Hao Jufei,Gao Junxi,Yang Yunling,Zhao Na,Zhang Jianbo.Analysis on the precipitation precursor of atmospheric water vapor and cloud water changes in Xingtai City[J].Journal of Guangxi Meteorology,2021,42(1):13-19. |
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| Authors: | Hao Jufei Gao Junxi Yang Yunling Zhao Na Zhang Jianbo |
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| Institution: | (Xingtai Meteorological Bureau,Xingtai Hebei 054000;Hebei Meteorological and Ecological Environment Key Laboratory,Shijiazhuang Hebei 050000;Renxian Meteorological Bureau,Renxian Hebei 050150;Hebei Environmental Meteorological Center,Shijiazhuang Hebei 050000) |
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| Abstract: | Based on the data of MWP967 KV ground-based microwave radiometer and infrared observation instrument,the variation characteristics of water vapor content(IWV),liquid water content(ILW)and cloud base height before the precipitation in Xingtai City in 2016 were analyzed.The results showed that the decrease of cloud base height was about 1 hour ahead of the increase of IWV,and the increase of IWV was about 1 hour ahead of the increase of ILW.IWV continuously increased for more than 3 hours and IWV≥4.00 cm,ILW increased for more than 2 hours and ILW≥0.669 mm,the continuous decline time of cloud bottom height≥4 hours,the average decrease≥0.68 km/h and the cloud bottom height≤1.53 km,which can be used as references index for judging precipitation in Xingtai City in the next 1 hour.When ILW fluctuated or jumped for many times,the rainfall would increase obviously in the first hour after the precipitation. |
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| Keywords: | microwave radiometer water vapor content total liquid water cloud base height precipitation |
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