{"id":"2858d45b-18b3-4081-ba7a-bccc49d2ea2b","title":"青藏工程走廊地温现状分布图（2010-2015）","title_en":"The ground temperature distribution Map of the Tibet engineering corridor (2010-2015)","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":"应用GIPL2.0冻土模型模拟了青藏工程走廊的平均地温分布图。该模型需要合成时间序列的温度数据集，按照时间跨度为2010-2015，数据应用空间分辨率为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对年平均地温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。模拟结论得出在高山区域，如昆仑山，唐古拉山，年平均地温小于-2.0 °C；而在较高的河谷地带，如坨坨河的年平均地温高于0 °C；对于高平原地区（如北麓河盆地和五道梁盆地）的年平均地温较高在-2.0 °C ~ 0 °C范围内。如果以年平均地温小于0 °C为多年冻土存在与否的阈值，则青藏工程走廊的多年冻土占整个区域的78.9%。同时根据地温的不同将青藏工程走廊的冻土类型分为低温稳定多年冻土、低温基本稳定多年冻土、高温不稳定多年冻土和高温极不稳定多年冻土。","doi":"10.11888/Geocry.tpdc.270044","projection":"","language":"zh","share_type":"online","east":93.5,"west":92.83,"south":34.68,"north":35.43,"scale":250000,"crs":"","filesize":1.0,"share_policy":"a","ts_created":"2018-05-24T09:59:03+08:00","doi_type":null,"ts_updated":"2021-04-18T16:54:34.335449+08:00","time_description":"","datas_group":3,"time_description_en":null,"data_format":"删格","project":[10,11],"specials":["1832ecb3-70d0-4b5e-bdb5-2e9ff4ad1efe","f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":"牛富俊、尹国安.青藏工程走廊地温现状分布图（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":"1 year < x < 10 year","spatial_resolution":"km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[5],"subtopics":{"metadata":"2858d45b-18b3-4081-ba7a-bccc49d2ea2b","three_pole":"XDA19070500","third_pole":null},"username":"","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":2632}