| 描述 |
本数据集包括俄:罗斯的冻土范围、冻土温度、地下冰厚度等信息，数据以ESRI的shapefile格式存储，数据从 paper maps taken from the World Atlas of Snow and Ice Resources, 1997, Institute of Geography, Russian Academy of Sciences数字化而来，源地图的比例范围从1:20,000,000至1:40,000,000。 1、数据为矢量文件等 2、投影： Projection: Lambert Azimuthal Units: Meters Datum: None Parameters: 6370997.24063 (radius of the sphere of reference) 100 0 0.000 (longitude of center of projection) 45 0 0.000 (latitude of center of projection) 0.00000 (false easting (meters)) 0.00000 (false northing (meters)) 详细数据说明请参考数据说明文档 |
