{"id":"56f077a4-3f53-4f77-8307-116cfa1446af","title":"2002-2017年全球AMSR-E/2近地表冻融状态产品数据集(0.05°)","title_en":"2002-2017 Global AMSR-E/2 Near-surface Freeze/Thaw state (0.05°)","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":"YYYYDOY_PP_StateRR.h5\nYYYY：4个字符，年份\nDOY：3个字符，Day of Year\nPP：2个字符，产品名称(FT代表冻结/解冻状态)\nRR： 2个字符，数据网格空间分辨率(0.05°)","description":"近地表土壤的冻结/融化状态表征着陆地表层过程的休眠和活跃，这种冻融相态交替能引起一系列复杂的地表过程轨迹模式突变，影响着土壤的水热特性、地表径流和地下水补给等水循环过程，同时也通过水和能量循环机制影响气候变化。本数据集是基于AMSR-E、AMSR2被动微波亮温数据，以及MODIS光学遥感数据，利用冻融判别式算法和冻融降尺度算法制备的全球近地表冻融状态（空间分辨率：0.05°；时间跨度：2002-2017年），可用于分析全球近地表冻融循环的开始/结束日期、冻结/融化时长、冻结范围等指标的空间分布和趋势变化，可为理解全球变化背景下陆表冻融循环与水分、能量交换过程的相互作用机制提供数据支持。","doi":"10.11888/Geocry.tpdc.270283","projection":"","language":"zh","share_type":"online","east":180.0,"west":-180.0,"south":-90.0,"north":90.0,"scale":null,"crs":null,"filesize":2959.0,"share_policy":"a","ts_created":"2019-11-04T06:40:57.772586+08:00","doi_type":"沿用数据已有DOI","ts_updated":"2022-03-28T15:18:22.840739+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[10,11],"specials":["b4b306da-eab1-47ef-ae5d-be2556298efd","5f218875-5eed-4939-8208-7bf54c573e42","1832ecb3-70d0-4b5e-bdb5-2e9ff4ad1efe"],"cite":null,"review_status":5,"review_invite":[],"review_editor":{"id":21056,"last_login":"2022-02-09T12:02:24.544987+08:00","username":"huxiaoli","email":"huxiaoli@lzb.ac.cn","is_active":true,"is_staff":true,"user_name":"胡晓利"},"data_sources":"","temporal_resolution":"Daily","spatial_resolution":"0.05 º - 0.1º","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[5,21],"subtopics":{"metadata":"56f077a4-3f53-4f77-8307-116cfa1446af","three_pole":"XDA19070204","third_pole":null},"username":"张子谦","review_time":"2019-11-06T13:27:20.291683+08:00","protected_duration":0,"protected_describe":null,"is_important":false,"hit_count":5336}