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The Shenyang Automatic Rainfall Monitoring Network(ARMN) is set up by using General Packet Radio Service(GPRS) and Geographical Information System(GIS) technology.It is composed of 46 automatic rainfall stations(ARS) distributed in the Shenyang area.GPRS has advantages of "fast access time," "high speed data transmission," "always online" and "pay by transfered data." It provides a reliable communication sub-network for ARMN.GIS has the advantage of spatial analysis in processing information.It can not only get the locations and query the rainfall attribute of ARS's,but also convert discrete rainfall data into continuous spatial distribution,which allows more direct representation of rainfall conditions.GIS improves the analysis and processing level of rainfall data.