{"id":"b9c9c2a4-4cd7-4192-adfa-c57a69e0a0e7","title":"基于通量观测网的中国温带半干旱草地蒸散发数据集（1982-2015）","title_en":"An evapotranspiration dataset based on upscaling eddy covariance observations over the temperate semi-arid grassland of China (1982-2015)","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":"蒸散发数据以netcdf格式存储。 每年有一个nc文件，文件的名称为“ET_yyyy.nc”，yyyy代表年。每个文件存储一个2093 x 1123 x 46 的三维数据(即‘DATA’ )。2093 x 1123为经纬度，46 为时序，即一年中的第几个8天。‘DATA’ 是8天蒸散发之和，单位为mm/8d。研究范围可参见文件“Coverage_The temperate semi-arid grassland of China.tif”，研究区域内的栅格标记为1。","description":"充分了解中国温带半干旱草地蒸散发的时空变化，可以提高我们对全球半干旱区气候、水文和生态过程的认识。本研究基于区域内13个站点的涡度相关系统观测数据，结合气象及遥感数据，利用机器学习方法(支持向量机)，生产了年限为1982-2015年，空间分辨率为1km，时间分辨率为8天的长序列中国温带半干旱草地蒸散发数据集。该数据集在站点实测数据的验证和流域水量平衡的对比中，均表现较好。(详细过程请参阅参考文献)","doi":"10.11888/Hydro.tpdc.271660","projection":"","language":"zh","share_type":"online","east":124.38,"west":103.45,"south":35.51,"north":46.74,"scale":null,"crs":null,"filesize":3574.0,"share_policy":"a","ts_created":"2021-08-25T09:40:47.662967+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-08-31T16:42:21.754771+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[11],"specials":[],"cite":null,"review_status":5,"review_invite":[],"review_editor":{"id":42423,"last_login":"2022-04-08T09:30:55.983765+08:00","username":"吴强林","email":"wuql@itpcas.ac.cn","is_active":true,"is_staff":true,"user_name":"吴强林"},"data_sources":null,"temporal_resolution":"Daily","spatial_resolution":"100m - 1km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[605,607],"subtopics":{"metadata":"b9c9c2a4-4cd7-4192-adfa-c57a69e0a0e7","three_pole":null,"third_pole":null},"username":"雷慧闽","review_time":null,"protected_duration":0,"protected_describe":null,"is_important":false,"hit_count":1406}