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在长期的海洋调查研究中，积累了丰富的水文气象数据，如流速、流向、温度、盐度、深度、风向、风速、悬浮体等要素的时空分布。数据来源的不同形成了大量的文件，给数据的空间查询工作带来了很大的困难。如查询某点周围的浮标数据不仅非常繁琐，且不能同屏显示，更有碍进一步
In the long-term marine investigation and research, abundant hydrological and meteorological data have been accumulated, such as the spatial and temporal distribution of such factors as flow velocity, flow direction, temperature, salinity, depth, wind direction, wind speed and suspension. The different data sources form a large number of files, which brings great difficulties to the spatial query of data. Such as query buoy data around a point is not only very cumbersome and can not be displayed on the same screen, hinder further