{"id":"f2aab6ba-9b57-4d77-b64e-8422282316a8","title":"基于USGS30秒世界高程数据库的泛第三极地形数据集","title_en":"Pan-TPE elevation data based on USGS 30 arc-second global elevation data","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":"本数据文件为DEM_ptpe_Gtopo30.nc","description":"数据来源于美国地质勘探局（USGS）开发的30秒全球高程数据集，于1996年完成。从NCAR和UCAR联合的数据下载中心（https://rda.ucar.edu/datasets/ds758.0/）下载了泛第三极区域的数据，并通过数据中心重新分发。GTOPO30在分发时将全球分为33个区块，采样间隔为30弧秒， 即0.008333333333333度，坐标参考为WGS84，其值为垂直方向高出海平面的距离，即海拔，单位为m，海拔范围-407到8752，这里不包含海洋深度信息，负值为大陆架的海拔；海洋处标记为-9999，海岸线以上大陆海拔至少为1；小于1平方千米的岛不考虑。详细说明信息请见说明文档。\n为了便于用户使用方便，在分块数据的基础上，将-10S-90N，20W-180E内10个区块进行拼接，没有经过任何重采样处理。本数据文件为DEM_ptpe_Gtopo30.nc","doi":"","projection":"","language":"zh","share_type":"online","east":180.0,"west":20.0,"south":-10.0,"north":90.0,"scale":null,"crs":null,"filesize":550.0,"share_policy":"a","ts_created":"2019-01-15T10:33:14.052343+08:00","doi_type":"国际公开共享数据","ts_updated":"2021-05-19T14:11:32.268075+08:00","time_description":"1996","datas_group":3,"time_description_en":"","data_format":null,"project":[11],"specials":["f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":null,"review_status":5,"review_invite":[{"user_name":"王卷乐","username":"王卷乐","email":"wangjl@igsnrr.ac.cn","is_cancel_expert":false},{"user_name":"陈荣","username":"rong960308","email":"1710424983@qq.com","is_cancel_expert":true}],"review_editor":{"id":42406,"last_login":"2022-04-07T10:33:29.125304+08:00","username":"rong960308","email":"1710424983@qq.com","is_active":true,"is_staff":true,"user_name":"陈荣"},"data_sources":"数据来源于美国地质勘探局地球资源观测与科学中心内政部于1997开发的USGS 30 ARC-second全球海拔数据，GTOPO30。 数据下载于美国国家大气研究，计算和信息系统实验室。网址为：http://rda.ucar.edu/datasets/ds758.0/。","temporal_resolution":"1000 year < x","spatial_resolution":"km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"f2aab6ba-9b57-4d77-b64e-8422282316a8","three_pole":null,"third_pole":"XDA20060103"},"username":"XDA20060103","review_time":"2019-12-08T21:50:57.695054+08:00","protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":2138}