{"id":"c18da4fe-eea3-4065-a045-37a1d079ba61","title":"环北极不同类型多年冻土区NDVI变化数据集（1982-2015）","title_en":"NDVI change data set on the different permafrost regions in Northern Hemisphere during 1982-2015","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":"1982001.tif","description":"环北极不同类型多年冻土区NDVI变化数据集（1982-2015），时间分辨率为每5年一期，覆盖范围为整个环北极国家, 空间分辨率为8km,以多源遥感、模拟、统计和实测数据为基础, 使用GIS方法和生态学方法结合, 量化了北半球多年冻土对生态系统的调节服务功能, 其所有数据进行了质量控制。利用环北极不同类型多年冻土区划，借助1982-2015年期间NDVI值，使用GIS方法，计算了1982-2015年期间环北极不同类型多年冻土区的NDVI变化，形成了“1982-2015环北极不同类型多年冻土区NDVI变化数据集”。同时，综合多个文献，对其数据进行了质量控制。","doi":"","projection":"WGS84","language":"zh","share_type":"online","east":180.0,"west":0.0,"south":90.0,"north":27.0,"scale":null,"crs":null,"filesize":6.25,"share_policy":"a","ts_created":"2020-07-25T22:43:54.182651+08:00","doi_type":"沿用数据已有DOI","ts_updated":"2021-10-18T15:36:36.420791+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[10],"specials":[],"cite":null,"review_status":5,"review_invite":[{"user_name":"冉有华","username":"ryh","email":"ranyh@lzb.ac.cn","is_cancel_expert":false}],"review_editor":{"id":42421,"last_login":"2022-04-08T15:16:51.670544+08:00","username":"任慧霞","email":"510727846@qq.com","is_active":true,"is_staff":true,"user_name":"任慧霞"},"data_sources":null,"temporal_resolution":"Yearly","spatial_resolution":"1m - 10m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[5],"subtopics":{"metadata":"c18da4fe-eea3-4065-a045-37a1d079ba61","three_pole":"XDA19070503","third_pole":null},"username":"万国宁","review_time":null,"protected_duration":0,"protected_describe":"1年保护期已结束","is_important":false,"hit_count":1784}