{"id":"1a2ee650-6bfe-46c5-a954-189183d5a4e8","title":"三江源、普尔河、育空河流域基于Sentinel-2的2017年水体产品","title_en":"2017 water products based on sentinel-2 in Sanjiangyuan, Puhe and Yukon River Basins","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":"本数据产品为栅格文件（.tif），可使用ArcGIS 10.0或ENVI 5.0以上版本打开。栅格数值为0、1、2、3依次代表空数据、非水体、季节水体、永久水体。命名格式为：流域缩写_2017，三江源（SJY）、普尔河（Sib）、育空河（Yuk）流域，采用UTM-WGS84投影。","description":"本研究数据主要基于Google Earth Engine大数据云处理平台，选用2017年三江源、普尔河、育空河流域Sentinel-2为基础数据，SRTM-DEM和Global Surface Water为辅助数据，选用AWEIn，AWEIs，WI2015，MNDWI，NDWI等多种水体指数阈值提取的方法，依据年水体频率获得季节水体与永久水体分类数据(空间分辨率10m)。该水体数据产品，为高时空分辨率水体变化和冻土水文分析提供了有效基础数据。","doi":"10.11888/Hydro.tpdc.270954","projection":"WGS84","language":"zh","share_type":"online","east":104.0,"west":89.0,"south":31.0,"north":37.0,"scale":null,"crs":null,"filesize":4780.0,"share_policy":"a","ts_created":"2019-10-30T05:43:26.839505+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-11-05T10:46:48.909617+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[10,11],"specials":["1832ecb3-70d0-4b5e-bdb5-2e9ff4ad1efe"],"cite":null,"review_status":5,"review_invite":[],"review_editor":{"id":21056,"last_login":"2022-02-09T12:02:24.544987+08:00","username":"huxiaoli","email":"huxiaoli@lzb.ac.cn","is_active":true,"is_staff":true,"user_name":"胡晓利"},"data_sources":"","temporal_resolution":"Yearly","spatial_resolution":"m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[5],"subtopics":{"metadata":"1a2ee650-6bfe-46c5-a954-189183d5a4e8","three_pole":"XDA19070204","third_pole":null},"username":"苏阳","review_time":"2019-10-30T07:27:12.229449+08:00","protected_duration":0,"protected_describe":"内部共享","is_important":false,"hit_count":3069}