{"id":"8b11da09-1a40-4014-bd3d-2b86e6dccad4","title":"中国1km逐月潜在蒸散发数据集（1990-2020）","title_en":"1 km monthly potential evapotranspiration dataset in China (1990-2020)","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":"以nc格式为存储，文件名称为“pet_yyyy.nc”，其中yyyy为年份，每个nc文件包含12个时间点，代表1-12月。为减少存储量，均已压缩文件存放，如pet_yyyy.rar。nc格式可用arcmap多维数据工具打开，或者Matlab、R等等。","description":"数据集为中国逐月潜在蒸散发，空间分辨率为0.0083333°（约1km），时间为1990.1-2020.12（将每年更新），单位为0.1mm。该数据集是基于中国1km逐月均温、最低温、最高温数据集（本站已发布，Peng at al. 2019），采用Hargreaves潜在蒸散发计算式得到（Peng at al. 2017）。公式如下： PET = 0.0023 × S0 ×（MaxT − MinT）0.5 ×（MeanT + 17.8）, 其中，PET为潜在蒸散发，mm/月；MaxT、MinT、MeanT分别为月最高温、最低温、均温；S0为到达地球大气层顶的理论太阳辐射，根据太阳常数、日地距离、儒略日、赤纬等计算得到。 为便于存储，数据均为int16型存于nc（NETCDF）文件中。nc数据可用ArcMAP软件打开制图，并可用Matlab、R软件提取处理。","doi":"10.11866/db.loess.2021.001","projection":"WGS84","language":"zh","share_type":"online","east":136.694222005205,"west":71.285888671875,"south":15.752124025163,"north":58.6354573584943,"scale":null,"crs":null,"filesize":7200.0,"share_policy":"a","ts_created":"2022-01-26T15:57:11.770003+08:00","doi_type":"拥有自主知识产权","ts_updated":"2022-03-10T15:23:04.053156+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":"周彦昭","username":"小昭","email":"zhouyanzhao9@126.com","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":"<= 0.01º","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[21,773],"subtopics":{"metadata":"8b11da09-1a40-4014-bd3d-2b86e6dccad4","three_pole":null,"third_pole":null},"username":"彭守璋","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":1441}