全国范围内河流矢量数据下载

<?xml version="1.0"?> <!--<!DOCTYPE metadata SYSTEM "http://www.esri.com/metadata/esriprof80.dtd">--> <metadata xml:lang="zh"><Esri><CreaDate>20171102</CreaDate><CreaTime>16413400</CreaTime><SyncOnce>TRUE</SyncOnce><DataProperties><lineage><Process ToolSource="C:\Program Files\ArcGIS\ArcToolbox\Toolboxes\Data Management Tools.tbx\Project" Date="20111011" Time="120121">Project River4_polyline F:\data\空间数据\国家基础地理信息系统数据\四级河流\River4_polyline_Project.shp GEOGCS['R4',DATUM['D_Xian_1980',SPHEROID['Xian_1980',6378140.0,298.257]],PRIMEM['&lt;custom&gt;',0.0],UNIT['Degree',0.0174532925199433]] # GEOGCS['R',DATUM['D_Xian_1980',SPHEROID['Xian_1980',6378140.0,298.257]],PRIMEM['&lt;custom&gt;',0.0],UNIT['Degree',0.0174532925199433]]</Process></lineage></DataProperties><ArcGISFormat>1.0</ArcGISFormat></Esri><idinfo><citation><citeinfo><onlink Sync="TRUE"></onlink></citeinfo></citation></idinfo><distInfo><distributor><distorTran><onLineSrc><linkage Sync="TRUE">file://</linkage><protocol Sync="TRUE">Local Area Network</protocol></onLineSrc></distorTran></distributor></distInfo><dataqual><lineage><procstep><procdesc Sync="TRUE">Dataset copied.</procdesc><srcused Sync="TRUE"></srcused><procdate Sync="TRUE">20111011</procdate><proctime Sync="TRUE">15325000</proctime></procstep><procstep><procdesc Sync="TRUE">Dataset copied.</procdesc><srcused Sync="TRUE"></srcused><procdate Sync="TRUE">20111011</procdate><proctime Sync="TRUE">15333600</proctime></procstep></lineage></dataqual></metadata>