{"id":"24aed2fd-8283-4d89-a30f-c301566b83eb","title":"根河地温观测数据集（2012-2019）","title_en":"Geotemperature observation data set of Genhe River (2012-2019)","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":"地温数据以文本格式存储，文件包括“aaaa_data.txt”和“aaaa_head.txt”，其中aaaa代表钻孔号，“aaaa_data.txt”代表所在钻孔的地温数据，“aaaa_head.txt”代表所在钻孔的各个深度，两个一起代表所在钻孔每天不同深度的地温状况。\n数据读取方式：该数据集中的所有文件可以直接用文本程序（如记事本）打开。","description":"在气候明显变暖的情况下，大部分地区的永久冻土一直在退化，但中国东北部大兴安岭西北部的永久冻土退化情况尚不清楚。根据多年冻土和活跃层温度的十年观测，钻孔GH4、MG3、MG1、MG2、GH5和YTLH2，20 m处多年平均年地面温度为-2.83， -0.94，-0.80，-0.70，-0.60，-0.49℃，永久冻土表深度为1.1至7.0m。已检测到浅层地面冷却，导致2009-2020年伊图里河融化深度下降，可能是由于相对稳定的平均正气温、积雪减少和当地人口减少。在大多数研究区域（如Mangui和Genhe），冻土变暖在更大深度（甚至在80 m）尤为明显。这些结果可为区域开发和工程设计与维护提供重要信息。","doi":"10.11888/Geocry.tpdc.271752","projection":"","language":"zh","share_type":"online","east":124.2,"west":121.5,"south":50.2,"north":53.0,"scale":null,"crs":null,"filesize":1.0,"share_policy":"a","ts_created":"2021-10-14T16:41:24.456238+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-10-19T14:11:05.305478+08:00","time_description":"2012-2019","datas_group":2,"time_description_en":"2012-2019","data_format":null,"project":[11],"specials":[],"cite":null,"review_status":5,"review_invite":[],"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":"Monthly","spatial_resolution":"100m - 1km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[657,658],"subtopics":{"metadata":"24aed2fd-8283-4d89-a30f-c301566b83eb","three_pole":null,"third_pole":null},"username":"常晓丽","review_time":null,"protected_duration":0,"protected_describe":"2年保护期","is_important":false,"hit_count":140}