{"id":"5bcb74ac-a287-4315-b3cb-de8b47cdb370","title":"基于《环北极地区多年冻土和地下冰状态图》的中国及其周边地区冻土分布图（2001）","title_en":"Permafrost map of China and its neighbors based on Circum-Arctic Map of Permafrost and Ground Ice Conditions (2001)","serial":"","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。","instructions":"文件命名：数据以矢量格式存储，文件名称为：Permaice_China.shp；\n数据读取方式：可以用Arcgis、Qgis等遥感软件打开。","description":"字段说明：\nNum_code（冻土属性编码）\nCombo（冻土属性）\nextent（冻土范围）\ncontent（含冰量）\n\n属性对照如下：\n（1）冻土属性对照表：\n0 （No information ）\n1 - chf （Continuous permafrost extent with high ground ice content and thick overburden）\n2 - dhf （Discontinuous permafrost extent with high ground ice content and thick overburden）\n3 - shf （Sporadic permafrost extent with high ground ice content and thick overburden）\n4 - ihf （Isolated patches of permafrost extent with high ground ice content and thick overburden ）\n5 - cmf （Continuous permafrost extent with medium ground ice content and thick overburden ）\n6 - dmf （Discontinuous permafrost extent with medium ground ice content and thick overburden ）\n7 - smf （Sporadic permafrost extent with medium ground ice content and thick overburden ）\n8 - imf （Isolated patches of permafrost extent with medium ground ice content and thick overburden）\n9 - clf （Continuous permafrost extent with low ground ice content and thick overburden ）\n10 - dlf （Discontinuous permafrost extent with low ground ice content and thick overburden ）\n11 - slf （Sporadic permafrost extent with low ground ice content and thick overburden ）\n12 - ilf （Isolated patches of permafrost extent with low ground ice content and thick overburden）\n13 - chr （Continuous permafrost extent with high ground ice content and thin overburden and exposed bedrock ）\n14 - dhr （Discontinuous permafrost extent with high ground ice content and thin overburden and exposed bedrock ）\n15 - shr （Sporadic permafrost extent with high ground ice content and thin overburden and exposed bedrock ）\n16 - ihr （Isolated patches of permafrost extent with high ground ice content and thin overburden and exposed bedrock）\n17 - clr （Continuous permafrost extent with low ground ice content and thin overburden and exposed bedrock ）\n18 - dlr （Discontinuous permafrost extent with low ground ice content and thin overburden and exposed bedrock ）\n19 - slr （Sporadic permafrost extent with low ground ice content and thin overburden and exposed bedrock）\n20 - ilr （Isolated patches of permafrost extent with low ground ice content and thin overburden and exposed bedrock ）\n21 - g （Glaciers）\n22 - r （Relict permafrost）\n23 - l （Inland lakes ）\n24 - o （Ocean/inland seas ）\n25 - ld （Land）\n\n（2）冻土范围对照表\nc = continuous (90-100%)\nd = discontinuous (50- 90%)\ns = sporadic (10- 50%)\ni = isolated patches ( 0 - 10%)\n\n（3）含冰量对照表\nh = high (>20% for \"f\" landform codes) (>10% for \"r\" landform codes)\nm = medium (10-20%)\nl = low (0-10%)","doi":"","projection":null,"language":"zh","share_type":"online","east":140.0,"west":60.0,"south":10.0,"north":60.0,"scale":null,"crs":null,"filesize":1.7,"share_policy":"a","ts_created":"2013-06-18T02:17:31+08:00","doi_type":"国际公开共享数据","ts_updated":"2021-04-19T10:02:44.976705+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":"Esri Shapefile","project":[10,11],"specials":[],"cite":null,"review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":"Yearly","spatial_resolution":"100m - 1km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"5bcb74ac-a287-4315-b3cb-de8b47cdb370","three_pole":null,"third_pole":null},"username":"盖春梅","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":4574}