{"id":"90ff3593-2184-431e-9841-9dc6560bf694","title":"青藏高原FY-4A地面太阳辐射精细化评估数据集（2019-2021）","title_en":"FY-4A Surface Solar Radiation Refined assessment dataset over the Tibetan Plateau (2019-2021)","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":"数据为FY-4A地面太阳辐射产品，例FY4A-_AGRI--_N_DISK_1047E_L2-_SSI-_MULT_NOM_20190101000000_20190101001459_1KM_V0001，其中20190101000000为yyyymmddhhmmss，数据格式为NC，4km格点数据","description":"数据为青藏高原地区FY-4A地面太阳辐射产品，包括GHI\\DNI\\DIF.FY4地表太阳入射辐射反演算法涉及的通道包括成像仪可见光、近红外和短波红外的6个通道：CH1(0.45-0.49微米)、CH2(0.55-0.75微米)、CH3(0.75-0.90微米)、CH4(1.36-1.39微米)、CH5(1.58-1.64微米)、CH6(2.1-2.35微米)。算法依赖的回归模型需要事先通过辐射传输模拟和统计分析建立，回归模型定义了地表太阳入射辐射与成像仪多通道辐射观测之间的回归关系式，是太阳观测几何与最重要影响参数（云、气溶胶、水汽含量、地表反照率、地表海拔高度等）的函数。算法利用FY-4卫星成像仪通道1至通道6的短波辐射观测，来获取大气和地表的瞬时状态参数信息，同时由地表高程数据获取地表海拔高度信息。在确定瞬时的大气和地表状态后，结合太阳角度和观测角度，根据事先建立的回归模型数据，进行多维线性插值，获取地表太阳入射辐射反演产品。","doi":"10.11888/Atmos.tpdc.271884","projection":"","language":"zh","share_type":"offline","east":100.5,"west":76.0,"south":26.5,"north":37.5,"scale":null,"crs":null,"filesize":385024.0,"share_policy":"c","ts_created":"2021-12-08T21:41:06.564183+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-12-14T14:48:43.242436+08:00","time_description":"","datas_group":0,"time_description_en":"","data_format":null,"project":[11],"specials":[],"cite":null,"review_status":5,"review_invite":[{"user_name":"唐文君","username":"tangwjitp","email":"tangwj@itpcas.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":"Hourly","spatial_resolution":"1km - 10km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"90ff3593-2184-431e-9841-9dc6560bf694","three_pole":null,"third_pole":null},"username":"周楠楠","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":640}