{"id":"c0c05207-568d-41db-ab94-8610bdcdbbe5","title":"青藏高原热融湖塘编目数据集（2018）","title_en":"Thermokarst lakes on the Qinghai-Tibet Plateau (2018)","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":"QTP_thermokarst_lake_2018","description":"青藏高原是世界上最大的高、低纬度多年冻土带，近几十年来，其多年冻土带迅速退化，其最显著的特征之一就是热融湖塘的形成。这样的湖泊由于能够调节碳循环、水和能量通量而引起了极大的关注。然而，这一地区的热融湖塘的分布在很大程度上仍不为人所知，这阻碍了我们对多年冻土的响应及其碳反馈对气候变化的理解。本数据集基于200余景Sentinel-2A影像，结合ArcGIS、NDWI和Google Earth Engine平台，通过GEE自动提取和人工目视解译的方法提提取青藏高原多年冻土区内热融湖塘边界。在2018年热融湖塘数据集中，青藏高原多年冻土区共有121,758个热融湖塘，面积为0.00035-0.5 km²，总面积为1730 km² 。本次热融湖塘编目数据集为青藏高原水资源评价、多年冻土退化评价、热喀斯特研究提供了基础数据。","doi":"10.11888/Geocry.tpdc.271205","projection":"WGS84","language":"zh","share_type":"online","east":73.5,"west":105.0,"south":26.0,"north":40.0,"scale":null,"crs":null,"filesize":40.37,"share_policy":"a","ts_created":"2021-03-09T17:19:13.774131+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-04-20T00:41:22.123344+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[11,12],"specials":[],"cite":null,"review_status":5,"review_invite":[],"review_editor":{"id":21054,"last_login":"2022-04-10T10:49:12.540341+08:00","username":"tingting","email":"panxd@itpcas.ac.cn","is_active":true,"is_staff":true,"user_name":"潘小多"},"data_sources":null,"temporal_resolution":"Yearly","spatial_resolution":"10m - 100m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[475,476,477],"subtopics":{"metadata":"c0c05207-568d-41db-ab94-8610bdcdbbe5","three_pole":null,"third_pole":null},"username":"陈旭","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":1989}