{"id":"b38e8767-928d-41f8-a9df-23d50170952c","title":"青藏工程走廊活动层厚度现状分布（1980-2015）","title_en":"The active layer depth distribution map of the Qinghai-Tibet engineering corridor (1980-2015)","serial":"地球大数据科学工程专项时空三极环境项目","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":"","description":"基于青藏工程走廊现有的15个活动层厚度监测场天然孔数据资料，运用GIPL2.0冻土模型模拟了青藏工程走廊的活动层厚度现状分布图。该模型需要合成时间序列的温度数据集，按照时间跨度分为两个阶段，分别是1980-2009和2010-2015，第一阶段的温度数据来自于中国气象驱动数据集（http://dam.itpcas.ac.cn/rs/?q=data#CMFD_0.1），第二阶段的数据应用空间分变率为1km的MODIS地表温度产品（MOD11A1/A2, MYD11A1/A2）。此外，模型需要的土质类型数据来自于分辨率为1公里的中国土壤数据库（V1.1），同时还考虑了地貌，基于实测的土壤热物理参数以及土地覆盖类型等将研究区域归为88类进行了模拟。\n对模拟结果和现场实测数据进行了对比，结果显示具有较好的一致性，相关系数达到0.75。在高山地区，活动层平均厚度小于2.0 m，然而在河谷地带，活动层平均厚度大于4.0 m，在高地平原区，活动层厚度通常在3.0 m -4.0 m之间。","doi":"10.11888/GlaciolGeocryol.tpe.0000079.file","projection":"","language":"zh","share_type":"online","east":93.5,"west":92.83,"south":34.68,"north":35.43,"scale":null,"crs":"","filesize":1.0,"share_policy":"a","ts_created":"2018-06-04T19:11:35+08:00","doi_type":null,"ts_updated":"2021-04-19T17:01:30.320928+08:00","time_description":"","datas_group":3,"time_description_en":null,"data_format":"TIFF","project":[10,11],"specials":["1832ecb3-70d0-4b5e-bdb5-2e9ff4ad1efe","f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":"牛富俊.青藏工程走廊活动层厚度现状分布（1980-2015）.  时空三极环境大数据平台. 2018","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":"10 year < x < 100 year","spatial_resolution":"km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[5],"subtopics":{"metadata":"b38e8767-928d-41f8-a9df-23d50170952c","three_pole":"XDA19070500","third_pole":null},"username":"","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":true,"hit_count":3537}