Uan water basin area rainfall calculation method based on multi-source data fusion technology

• Main Authors: YANG HUI, ZHANG PING, HE QIUJUN, LIU HUIMING, HU QUANQING, TANG DAJUN, HE WEI, CHEN HAO, LI DEQING, FAN HUOSHENG, SHEN SHENGTENG, ZHAO YONG, YAO ZEYANG, ZENG YI
• Format: Patent
• Language: Chinese; English
• Published: 02.04.2024
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; MEASURING; METEOROLOGY; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR; TESTING

The invention discloses a method for calculating the area rainfall of an ultra-water basin based on a multi-source data fusion technology. The method comprises the following steps: processing collected basin automatic rainfall station data, basin radar inversion rainfall data and FY4 satellite inversion rainfall data through an interpolation method to obtain a grid rainfall data set with a uniform resolution; correcting radar and satellite inversion rainfall data through a probability density function matching method; radar and satellite rainfall data are effectively fused through a Bayesian model averaging method, drainage basin automatic rainfall station data are further fused through an optimal interpolation method on the basis of fusion, and finally a multi-source data fusion product is obtained. And the position information of the grids in the multi-source data fusion product is matched with the area where the sub-units of the drying basin are located, so that the areal rainfall of each sub-unit is calcu