{"id":"3a421666-a834-4ad8-9979-e10b5dd20b5b","title":"青藏高原黄河源区沼泽空间分布图（2013）","title_en":"Spatial distribution map of marsh in the source region of the Yellow River on the Qinghai-Tibet Plateau (2013)","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":"数据集文件统一打包在“result”文件夹下，使用ArcGIS软件打开“resultgrid”grid格式文件即可查看黄河源沼泽分类结果。可使用ArcGIS导入符号系统功能，通过打开“resultgrid.lyr”图层文件，导入预设图层。","description":"本数据集为扎陵湖-鄂陵湖附近黄河源区沼泽空间分布图，面积约2.1万平方公里。数据集由Landsat 8 影像通过专家决策树分类，并经人工目视解译修正获得。影像的空间分辨率为30 m，采用WGS 1984 UTM 投影坐标系，数据格式为grid格式。影像区分为5种地类，地类1为“水体”，地类2为“高盖度植被”，地类3为“裸地”，地类4为“低盖度植被”，地类5为“沼泽”，其中低盖度植被及高盖度植被通过植被覆盖度进行区分，阈值选取0.1至0.4为低盖度植被，0.4至1为高盖度植被。","doi":"","projection":"UTM","language":"zh","share_type":"online","east":98.38,"west":95.88,"south":33.93,"north":35.49,"scale":null,"crs":null,"filesize":8.61,"share_policy":"a","ts_created":"2019-01-31T13:39:17.026619+08:00","doi_type":"","ts_updated":"2021-04-19T16:41:18.504781+08:00","time_description":"2013.06.10-2013.08.04","datas_group":3,"time_description_en":"","data_format":null,"project":[11,12],"specials":["f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":null,"review_status":5,"review_invite":[{"user_name":"秦军","username":"秦军","email":"shuairenqin@itpcas.ac.cn","is_cancel_expert":true}],"review_editor":{"id":21054,"last_login":"2022-04-10T10:49:12.540341+08:00","username":"tingting","email":"panxd@itpcas.ac.cn","is_active":true,"is_staff":true,"user_name":"潘小多"},"data_sources":"本数据所需三景Landsat 8 遥感影像通过USGS（美国地质调查局）网站获得（https://glovis.usgs.gov/app）","temporal_resolution":"Yearly","spatial_resolution":"m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"3a421666-a834-4ad8-9979-e10b5dd20b5b","three_pole":null,"third_pole":"XDA20100103"},"username":"XDA20100103","review_time":"2019-02-03T14:58:32.682143+08:00","protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":2816}