{"id":"864647ea-5cd3-49f9-8d37-8b34aea908e8","title":"俄罗斯1:250万冻土类型数据集（1991-1998）","title_en":"The Russian frozen soil dataset (1:250,000) (1991-1998)","serial":"泛第三极环境大数据平台","user_limit":"为尊重知识产权、保障数据作者的权益、扩展数据中心的服务、评估数据的应用潜力，请数据使用者在使用数据所产生的研究成果中（包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果），明确注明数据来源和数据作者。对于转载（二次或多次发布）的数据，作者还须注明原始数据来源。\n\n中文发表的成果参考以下规范注明： 数据来源于“黑河计划数据管理中心”(http://westdc.westgis.ac.cn)\n\n英文发表的成果依据以下规范注明： The data set is provided by Cold and Arid Regions Sciences Data Center at Lanzhou (http://westdc.westgis.ac.cn)","instructions":"","description":"该数据源是1991-1996年，俄罗斯出版1：250的《Geocryological Map of Russia and Neighbouring Republics》系列图，该图采用俄语标注，共16幅。1998年，Zaitsev等将其翻译为英文。这次数字化，将选择其中的7个主题进行数字化，分别为：1）Distribution of frozen and unfrozen ground，2）Mean annual temperature of unfrozen ground at the depth of zero annual amplitude” might be awkward as we do not know where is the depth of zero amplitude, and lack data, generally. 3）Thickness of permafrost，4）Depth from the surface and thickness of relict permafrost, 5）Distribution of permafrost containing  cryopegs, 6）Thickness of permafrost containing cryopegs, 7）Distribution of permafrost with depth。\n1、该数据包括两个矢量图层:(1)冻土分布层(permofrostpermafrost distribution)(2)冻土温度层（permafrost_temperature)(3)冻土厚度图(permafrost thickness)(4)冻土形成条件(permafrost formation conditions）(5)纠正图像(Correction Image)\n2.冻土层分布图包括以下几个字段:AREA,PERIMETER,FROZEN_,FROZEN_ID:POLY_,POLY_,RINGS_OK,RINGS_NOK,A,冻土层:FROZEN_SOI,温度。冻土层和FROZEN_SOI是冻土类型的中英文表示。\n4、冻土层属性:\nFrozen-Soil \t 冻土层 \t 温度水域\nContinuous Predominantly unfrozen \t连续大片非冻土 \t1-5\nContinuous permafrost \t连续多年冻土 \t-3- -5\nContinuous unfrozen ground \t连续非冻土 \t4-6\nDiscontinuous permafrost \t不连续多年冻土 \t0.5- -2\nPredominantly continuous permafrost \t大片连续多年冻土 \t-1- -3\nPredominantly unfrozen ground \t大片非冻土 \t1-3 \n5、投影信息：\n       PROJCS[\"Asia_North_Equidistant_Conic\",\n       GEOGCS[\"GCS_North_American_1927\",\n        DATUM[\"North_American_Datum_1927\",           SPHEROID[\"Clarke_1866\",6378206.4,294.9786982]],\n        PRIMEM[\"Greenwich\",0.0],\n        UNIT[\"Degree\",0.0174532925199433]],\n    PROJECTION[\"Equidistant_Conic\"],\n    PARAMETER[\"False_Easting\",0.0],\n    PARAMETER[\"False_Northing\",0.0],\n    PARAMETER[\"longitude_of_center\",100.0],\n    PARAMETER[\"Standard_Parallel_1\",15.0],\n    PARAMETER[\"Standard_Parallel_2\",58.3],\n    PARAMETER[\"latitude_of_center\",60.0],\n    UNIT[\"Meter\",1.0]]","doi":"","projection":"Asia_North_Equidistant_Conic","language":"zh","share_type":"online","east":-168.0,"west":26.0,"south":42.0,"north":82.0,"scale":2500000,"crs":"","filesize":41.78,"share_policy":"a","ts_created":"2011-03-13T05:57:12+08:00","doi_type":"国际公开共享数据","ts_updated":"2021-04-20T00:49:53.327987+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":"shp","project":[10,11],"specials":["1832ecb3-70d0-4b5e-bdb5-2e9ff4ad1efe","f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":"Yershow,Geocryological Map of Russia and Neighbouring Republics,Geocryology Department Geology Faculty,Moscow State university,1996","review_status":5,"review_invite":[],"review_editor":{"id":21057,"last_login":"2022-04-02T11:43:37.753860+08:00","username":"gecm","email":"gechm@lzb.ac.cn","is_active":true,"is_staff":true,"user_name":"盖春梅"},"data_sources":"","temporal_resolution":"","spatial_resolution":"","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"864647ea-5cd3-49f9-8d37-8b34aea908e8","three_pole":null,"third_pole":null},"username":"盖春梅","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":12109}