基于GML的海洋环境空间数据共享研究

Research on Spatial Data Sharing of Ocean Environment Based on GML

地理标记语言(GML)是一种基于XML的空间信息编码、存储和交换格式,它的出现推动了多源异构数据共享和互操作技术的发展。面向海洋环境数据共享,在此探讨基于GML的空间数据组织方法,提出通过SVG转换实现在普通浏览器上显示地理数据的共享框架,实现了Shp,Mif,Vec等格式的GML封装,并以海表温度数据为例验证了数据的转换结果。实验表明,通过GML封装海洋环境空间数据,可有效实现数据共享。

Geography Markup Language（GML）is a XML grammar for the modeling, transport and storage of geographic information, which has developed the sharing of heterogeneous spatial data. Aiming at the realization of sharing of digital ocean environmental heterogeneous spatial data, the method for organization of spatial data based on GML is discussed,and then the sharing framework, under which GML data is converted to SVG to display on common browser is advanced. GML encapsula- tion of Shp, Mif and Vec format is realized. A set of sample sea surface temperature data which has been taken into experiment acknowledges the truth of convertion. The representative result proves the validity of spatial data sharing by GML encapsulation.