{"id":"cbe20190-923c-4573-9431-a886330152e3","title":"青藏工程走廊高分辨率土壤冻融数据集（2015-2020）","title_en":"High resolution soil freeze/thaw dataset of the Qinghai-Tibet Engineering Corridor (2015-2020)","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":"冻融数据以TIF格式栅格文件储存，文件的名称为\"yyyy_mm_mode_FT.tif\"，其中yyyy代表年，mm代表月，mode代表数据的升降轨情况，其中A为升轨，D为降轨。","description":"本数据是研究团队综合利用Sentinel-1 SAR数据，AMSR-2微波辐射计数据以及MODIS LST产品所生产的青藏工程走廊区域高分辨土壤冻融数据集。基于新提出的算法，本产品提供月尺度100m空间分辨土壤冻融状态检测结果，并通过气象站点和土壤温度站点进行精度验证。基于青藏工程走廊地区的4个气象站点进行精度验证，结果表明基于升轨和降轨Sentinel-1的土壤冻融检测结果的整体准确率分别为84.63%和77.09%。基于那曲土壤湿度/温度监测站点进行精度验证，升轨和降轨结果的平均整体精度为78.58%和76.66。该产品弥补了传统土壤冻融产品空间分辨率不足（>1km）的问题，为青藏工程走廊区域高分辨率土壤冻融监测提供了可能。","doi":"10.11888/Cryos.tpdc.272144","projection":"WGS84","language":"zh","share_type":"online","east":95.16,"west":90.32,"south":29.43,"north":36.63,"scale":null,"crs":null,"filesize":67.0,"share_policy":"a","ts_created":"2022-03-16T07:38:40.054154+08:00","doi_type":"拥有自主知识产权","ts_updated":"2022-03-18T11:01:12.432370+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[11],"specials":[],"cite":null,"review_status":5,"review_invite":[{"user_name":"冉有华","username":"ryh","email":"ranyh@lzb.ac.cn","is_cancel_expert":false}],"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":"10m - 100m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[827,828],"subtopics":{"metadata":"cbe20190-923c-4573-9431-a886330152e3","three_pole":null,"third_pole":null},"username":"周欣","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":93}