{"id":"d1169b0a-ea0d-4ca8-9103-d759b8fc89cd","title":"MODIS遥感植被春季返青期物候（2001-2014）","title_en":"The MODIS remote sensing vegetation phenology at returning green stage in spring（2001-2014）","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":"NDVI name_variable name_time span\n本数据为netcdf格式","description":"本数据集根据NASA EOSDIS LP DAAC 和美国地质调查 USGS EROS共同发布的第六版MODIS均一化植被指数产品（2001-2014）。NDVI的时间分辨率是16天，空间分辨率0.05度，我们先将NDVI数据产品从0.05度空间分辨率重采样到0.5度，然后对每年的时间序列采用double-logistic方法进行平滑，并计算平滑后的曲率，选取春季曲率最大值作为植被的春季返青期，该数据可分析泛北极植被春季物候的时空特征。","doi":"","projection":null,"language":"zh","share_type":"online","east":180.0,"west":-180.0,"south":30.0,"north":90.0,"scale":null,"crs":null,"filesize":4.0,"share_policy":"a","ts_created":"2019-06-22T13:24:43.163238+08:00","doi_type":"国际公开共享数据","ts_updated":"2021-04-20T00:37:36.967352+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[10,11],"specials":["5f218875-5eed-4939-8208-7bf54c573e42"],"cite":null,"review_status":5,"review_invite":[],"review_editor":{"id":21057,"last_login":"2022-04-02T11:43:37.753860+08:00","username":"gecm","email":"gechm@lzb.ac.cn","is_active":true,"is_staff":true,"user_name":"盖春梅"},"data_sources":"","temporal_resolution":"Yearly","spatial_resolution":"","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[5],"subtopics":{"metadata":"d1169b0a-ea0d-4ca8-9103-d759b8fc89cd","three_pole":"XDA19070203","third_pole":null},"username":"徐希燕","review_time":"2019-06-22T13:34:01.915919+08:00","protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":2367}