{"id":"ee712cd5-528e-4620-b391-8c7133f0cc12","title":"三江源国家公园250m遥感物候产品数据集（2001-2020）","title_en":"250m remote sensing phenological product data set of Sanjiangyuan National Park (2001-2020)","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":"文件命名方式为：区域缩写_NDVI_物候期变量名（SOS或EOS）_估算方法简写_YYYY(年份).tif。","description":"该数据集是基于MODIS 16天合成的NDVI产品（MOD13Q1 collection6）估算的三江源国家公园区域的植被生长季开始（Start of Season: SOS）和生长季结束的日期（End of Season: EOS）。共用了两种常见的物候期估算方法，分别是基于多项式拟合的阈值提取法（文件名中有poly字符）和基于双逻辑曲线（double logistic function）拟合后的拐点提取法（文件名中有sig字符）。该数据可以用来分析植被物候期与气候变化的关系。时间范围为2001年至2020年。空间分辨率为250m。数据中包含4个子文件夹，CJYYQ_phen是三江源国家公园长江源园区的物候结果，HHYYQ_phen是三江源国家公园黄河源园区的物候结果，LCJYYQ_phen是三江源国家公园澜沧江源园区的物候结果，SJY_phen是整个三江源区域的物候。\n数据格式为geotif，建议使用arcmap或者Python+GDAL浏览和处理数据。","doi":"10.11888/Ecolo.tpdc.270972","projection":"","language":"zh","share_type":"online","east":102.58,"west":89.15,"south":30.79,"north":37.38,"scale":null,"crs":null,"filesize":7546.88,"share_policy":"a","ts_created":"2020-01-07T17:02:33.347621+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-08-05T06:06:30.828609+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[10,11,12],"specials":["d09c103c-0e37-4b09-a609-6d77c982ae37"],"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":null,"temporal_resolution":"Yearly","spatial_resolution":"100m - 1km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[7],"subtopics":{"metadata":"ee712cd5-528e-4620-b391-8c7133f0cc12","three_pole":null,"third_pole":null},"username":"胡晓利","review_time":"2020-01-07T18:00:16.058593+08:00","protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":7698}