| 雷达回波强度拼图的定量估测降水及其效果检验 |
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| 引用本文： | 梁建茵,胡胜.雷达回波强度拼图的定量估测降水及其效果检验[J].热带气象学报,2011,27(1):1-10. |
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| 作者姓名： | 梁建茵 胡胜 |
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| 作者单位： | 1. 中国气象局广州热带海洋气象研究所/中国气象局热带季风重点实验室,广东,广州,510080
2. 广东省气象台,广东,广州,510080 |
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| 基金项目： | 广东省科技厅项目，中国气象局气象新技术推广项目"雨量计和多平台遥感降水资料的融合技术"共同资助 |
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| 摘 要： | 为了得到精度更高的高时空分辨率格点定量估测降水量，需要将雷达资料和雨量计降水量资料进行有效的综合利用。利用广东6部多普勒雷达的回波强度拼图资料和稠密的自动雨量计降水强度观测资料，采用概率密度法建立Z-R关系进行雷达降水估计，并采用客观订正方法利用雨量计资料对雷达降水估计进行校准。交叉检验表明：利用雨量计对雷达降水估计进行客观方法订正可以取得比单纯用雨量计资料进行OI插值好的效果。OI雷达订正法较优。
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| 关 键 词： | 大气探测 雷达降水估测 客观订正方法 交叉检验 |
A STRATEGY FOR RADAR-RAINFALL ESTIMATE AND ITS VALIDATION |
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| LIANG Jian-yin,HU Sheng.A STRATEGY FOR RADAR-RAINFALL ESTIMATE AND ITS VALIDATION[J].Journal of Tropical Meteorology,2011,27(1):1-10. |
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| Authors: | LIANG Jian-yin HU Sheng |
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| Institution: | LIANG Jian-yin1,HU Sheng2(1.Institute of Tropical and Marine Meteorology,CMA,Guangzhou/Tropical Monsoon Key Laboratory,Guangzhou 510080,China,2.Guangdong Meteorological Observatory,China) |
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| Abstract: | In order to get higher-resolution,higher-accuracy quantitative precipitation estimates(QPE),it is necessary to merge radar data with gauge observations comprehensively.In the paper,the mosaics of echo intensity from six Doppler radars in Guangdong province and rain rates observed by 750 gauges were used.The radar-rainfall estimates were calculated with the probability density function(PDF) method,and its errors were adjusted by gauge observations with the optimum interpolation(OI) calibration method.The cro... |
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| Keywords: | atmospheric observation radar-rainfall estimate objective calibration method cross validation optimum interpolation |
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