{"id":"de6ddf52-7b8f-4095-8412-f89e9d06e542","title":"中国西南地区及长江上游 90m SRTMDEM 高程数据","title_en":"90m SRTMDEM Elevation Data of Southwest China and the Upper Yangtze River","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":"文件命名为：SRTMDEMUTM 90m.tif\n该数据可以使用arcgis，envi等gis软件和matlab，python等编程软件直接读取及编辑。","description":"SRTM由美国太空总署（NASA）和国家测绘局（NIMA）联合测量。2000年2月11日，美国发射的“奋进”号飞机上搭载SRTM系统，共计进行了222小时23分钟的数据采集工作，获取北纬60度至南纬60度之间总面积超过1.19亿平方公里的雷达影像数据，覆盖地球80%以上的陆地表面。 SRTM系统获取的雷达影像制成了SRTM地形产品数据。此数据产品2003年开始公开发布，经历多修订，目前的数据修订版本为V4.1版本。该版本由CIAT（国际热带农业中心）利用新的插值算法得到的SRTM地形数据，此方法更好的填补了SRTM 90的数据空洞。SRTM地形数据按精度可以分为SRTM1和SRTM3，分别对应的分辨率精度为30米和90米数据。","doi":"https://doi.org/10.5067/MEaSUREs/SRTM/SRTMGL1.003","projection":"WGS84","language":"zh","share_type":"online","east":112.5,"west":90.0,"south":20.5,"north":36.0,"scale":null,"crs":null,"filesize":781.0,"share_policy":"a","ts_created":"2022-09-30T16:08:42.012950+08:00","doi_type":"国际公开共享数据","ts_updated":"2022-10-11T11:23:06.843345+08:00","time_description":"2003","datas_group":3,"time_description_en":"2003","data_format":null,"project":[10],"specials":["b4b306da-eab1-47ef-ae5d-be2556298efd","1832ecb3-70d0-4b5e-bdb5-2e9ff4ad1efe"],"cite":null,"review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":"Yearly","spatial_resolution":"10m - 100m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"de6ddf52-7b8f-4095-8412-f89e9d06e542","three_pole":null,"third_pole":null},"username":"余玲","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":287}