ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Preliminary Study on the Fusion and Application of the Fundamental Data from China’s Weather Radar Network and FY-3G Precipitation Satellite
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Abstract:
Our country has built the largest ground-based multi-band weather radar network in the world and successfully launched the first domestically-made and the third globally-made active radar precipitation measurement satellite. The overall technical level is world-class. Weather radars and precipitation satellites are important components of the integrated space-ground precipitation observation network and are key technical supports for accurately capturing precipitation dynamics and comprehensively analyzing precipitation characteristics. Ground-based weather radars have high temporal and spatial resolution, but their coverage is limited by geographical location and it is difficult to achieve continuous global observations. Spaceborne precipitation radars can provide three-dimensional precipitation structure information for the middle and low latitudes of the globe, especially for areas where ground equipment is difficult to cover, such as the ocean and plateaus. The integrated application of space-ground fusion achieves the organic combination of continuous early warning of large-scale precipitation situations and fine detection of local precipitation characteristics, providing more accurate and comprehensive data support and decision-making basis for meteorological forecasting, disaster warning, water resource management and other fields. This article details the technical characteristics, operational quality and data products of our country"s ground-based multi-band weather radar network and Fengyun-3 precipitation satellite, and from three aspects: the integration and application of passive microwave and active microwave of the main satellite and high-frequency infrared precipitation observation of the geostationary satellite, the simulation of ground radar signals based on geostationary satellite observation, and the comparison, verification and integration of spaceborne radar and ground-based radar observation data, puts forward preliminary thoughts and prospects for the collaborative observation and integrated application of space-ground precipitation radars in our country.
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Project Supported:
National Natural Science Foundation of China Grant U2442214
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