{"id":"ec4e4332-c2d2-45cf-8dff-8c13339940f6","title":"赤道北部非洲与萨赫勒地区长时间序列夜光遥感数据集（1992-2020）","title_en":"Long time series night time light remote sensing  dataset for the Northern Equatorial Africa and Sahel Region (1992-2020)","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":"文件命名：数据以Geotiff格式储存，文件名称为“mc_annual_ntl_yyyy.tif”，其中yyyy代表年。\n数据读取方式：可读取geotiff的软件或计算机语言均可读取该数据，如ArcGIS、ENVI、IDL、Python、Matlab等。","description":"该数据集包含1992年至2020年间逐年赤道北部非洲与萨赫勒地区夜光辐亮度数据影像。数据集通过建立DMSP-OLS夜光遥感数据DN值和NPP-VIIRS夜光遥感数据辐亮度对应关系校正1992年至2013年的DMSP-OLS稳定光夜光遥感影像数据，并基于NPP-VIIRS夜光数据模拟合成2013年以后的DMSP-OLS稳定光夜光数据构建而成。数据空间分辨率为0.00833°（约1km），数据类型为GEOTIFF。栅格像元值为辐亮度，单位为10−9 W∙cm−2∙sr−1。该数据集可用于赤道北部非洲与萨赫勒地区的人类活动相关研究，如人类活动时空变化分析。","doi":"10.11888/HumanNat.tpdc.272019","projection":"WGS84","language":"zh","share_type":"online","east":50.0,"west":-20.0,"south":0.0,"north":20.0,"scale":null,"crs":null,"filesize":117.0,"share_policy":"a","ts_created":"2022-02-18T12:44:59.231097+08:00","doi_type":"拥有自主知识产权","ts_updated":"2022-02-19T13:15:52.778828+08:00","time_description":"1992-2020","datas_group":3,"time_description_en":"","data_format":null,"project":[11],"specials":["826da9bc-541f-469f-ade3-a16e04d375ca"],"cite":null,"review_status":5,"review_invite":[],"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":"Yearly","spatial_resolution":"100m - 1km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[797],"subtopics":{"metadata":"ec4e4332-c2d2-45cf-8dff-8c13339940f6","three_pole":null,"third_pole":null},"username":"蒋敏","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":1778}