数据质量描述
数据集通过严格的人工审核控制质量
数据源描述
该数据数字化自The map of Geocryology and Geocryological Zonation of Mongolia was derived from the National Atlas of Mongolia (Sodnom and Yanshin, 1990)
数据集摘要
该数据描述了：蒙古共和国地区冻土和季节性冻土的分布及一般属性
1、数据包括两个图层：其中冻土分区图1:12,000,000，冻土分区包括continuous and discontinuous permafrost, insular and sparsely insular permafrost, sporadic permafrost, and seasonally frozen ground.(2)冻土类型图1:4,500,000，根据海拔高度、年平均气温、冻土深度、冻融深度、季节性冻土、季节性冻结深度划分为14个类型。
2、该数据数字化自The map of Geocryology and Geocryological Zonation of Mongolia was derived from the National Atlas of Mongolia (Sodnom and Yanshin, 1990)
3、数据包括以下图层：
cryo_landslide.shp（point locations of cryogenic landslides）、cryo_planation.shp（point locations of cryogenic planation）、dig_country_bnd.shp（digitized country boundary polygon from the 1:4,500,000 map）、dig_lakes.shp（digitized lake polygons from the 1:4,500,000 map）、treams.shp （digitized stream vectors from the 1:4,500,000 map）、geocryo_regions.shp （digitized geocryological region polygons from the 1:12,000,000 map. See the attribute description below）、geocryology.shp（digitized polygons of areas with detailed geocryological information from the 1:4,500,000 map. See the attribute description below）、icings.shp（point locations of icings）、
per_frost_mound.shp（point locations of perennial frost mounds）、solifluction.shp（point locations of solifluction）、thermokarst.shp（point locations of thermokarst）。
4、投影信息：PROJCS["albers_ea_conic_mongolia",
GEOGCS["GCS_WGS_1984",
DATUM["WGS_1984",
SPHEROID["WGS_1984",6378137.0,298.257223563]],
PRIMEM["Greenwich",0.0],
UNIT["Degree",0.0174532925199433]],
PROJECTION["Albers_Conic_Equal_Area"],
PARAMETER["False_Easting",0.0],
PARAMETER["False_Northing",0.0],
PARAMETER["longitude_of_center",103.83333],
PARAMETER["Standard_Parallel_1",43.341667],
PARAMETER["Standard_Parallel_2",50.383333],
PARAMETER["latitude_of_center",46.866667],
UNIT["Meter",1.0]]
Sodnom, N. and A. L. Yanshin, eds. 1990. Geocryology and geocryological zonation of Mongolia. Digitized 2005 by M. A. Parsons. Boulder, Colorado USA: National Snow and Ice Data Center/World Data Center for Glaciology. Digital Media.
| # | 标题 | 格式 | 文件大小 |
| 1 | 1：1200万蒙古冻土分布图 | rar | 1.0 MB |
| 2 | 蒙古共和国冻土及冻土分区图-文档 | rar | 1.3 MB |