{"id":"4747158b-1df3-47ad-8537-a230ed4cb020","title":"祁连山地区活动层厚度及冻结深度变化时空分布图","title_en":"Spatial distribution of Active Layer Thickness and Soil Freeze Depth in Qilian Mountain","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：活动层厚度以栅格数据格式存储，文件的名称为ALT_Qilian_PF.tif，其中ALT为活动层厚度，Qilian_PF为祁连山多年冻土区\n冻结深度以栅格数据格式存储，文件的名称为MFP_Qilian.tif，其中MFP为土壤冻结深度，Qilian为祁连山区","description":"广义的季节冻土包括非多年冻土区的季节冻结层和多年冻土区的季节融化层。季节冻土的面积可达80%以上，占据北半球大部分陆地面积。季节冻土的冻融循环过程对地-气水热交换、地表能量平衡、地表水文过程、生态系统、碳循环、农业生产、工程建设等具有非常重要的影响。基于站点观测资料、CRU资料，利用Stefan方程，计算祁连山多年冻土区活动层厚度和季节冻土区土壤冻结深度的空间分布（1971-2000年的30年平均值）。研究结果有助于进一步探讨祁连山季节冻土变化与气候变化之间的物理机制、冻土区生态-水文过程等研究。","doi":"10.11888/Geocry.tpdc.271189","projection":"WGS84","language":"zh","share_type":"online","east":104.0,"west":93.0,"south":35.0,"north":40.0,"scale":null,"crs":null,"filesize":4.0,"share_policy":"a","ts_created":"2020-12-15T01:47:50.054006+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-04-20T00:08:02.682615+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[11],"specials":["f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":null,"review_status":5,"review_invite":[{"user_name":"Bin Cao (曹斌)","username":"BinCao","email":"bin.cao@itpcas.ac.cn","is_cancel_expert":true}],"review_editor":{"id":42421,"last_login":"2022-04-08T15:16:51.670544+08:00","username":"任慧霞","email":"510727846@qq.com","is_active":true,"is_staff":true,"user_name":"任慧霞"},"data_sources":null,"temporal_resolution":"10 year < x < 100 year","spatial_resolution":"0.25º - 0.5º","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"4747158b-1df3-47ad-8537-a230ed4cb020","three_pole":null,"third_pole":"XDA20100103"},"username":"XDA20100103","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":1343}