Analyzing the source of spatial data and improving the quality of spatial data are the precondition of building GIS.

分析空间数据来源、提高空间数据质量是建立地理信息系统的前提。

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Using the climatic data recorded by the 90 weather stations in Guangxi in 30 years and geographic information of the stations, spatial analyzing models of division index are built.

利用广西90个气象台站30年的气候资料和台站地理信息，建立了区划指标的空间分析模型。

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Geographical information system (GIS) is a spatial information system which is in charge of collecting, storing, managing, analyzing and describing data related spatial distribution.

地理信息系统(GIS)是一种以采集、贮存、管理、分析和描述整个或部分地球表面与空间地理分布有关数据的空间信息系统。

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