{"id":"44e63435-a7f4-4597-be28-b419246a572d","title":"青藏高原Landsat系列卫星遥感植被覆盖度（FVC）产品（1980s-2019）","title_en":"Landsat fractional vegetation cover (FVC) products over the Tibetan Plateau (1980s-2019)","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：FVC是以景为单位存放文件夹，由FVC波段、质量文件（Quality Assessment, QA）、元数据、缩略图组成，文件夹的命名规则为：卫星-传感器-path-row-成像日期-LSR-BRDF-FVC，如L5-TM-115-026-19840418-LSR-BRDF-FVC；其中FVC产品是以GeoTIFF格式存储的，命名规则为：卫星-传感器-path-row-成像日期-LSR-BRDF-FVC.TIF，如L5-TM-115-026-19840418-LSR-BRDF-FVC.TIF。数据使用方法：FVC结果可使用Arcgis、ENVI、QGIS等软件打开，为了降低存储空间，FVC结果值的单位为%，如值为80，表示植被覆盖度为80%，背景填充值为-9999，冰雪或云覆盖区域填充值为-9000，并进行了“LZW”的无损压缩。","description":"1）数据内容：本数据集包含从1980s-2019年青藏高原地区Landsat长时序FVC产品。2）数据来源及加工方法：主要是在青藏高原Landsat系列卫星地表反射率数据集的基础上，通过NDVI的像元二分模型进行反演的，裸土的NDVI值设为0.01，纯植被的NDVI值设为0.88；3）数据质量描述：为了标识云、冰雪，并相应生产了质量标识文件（QA）。4) 数据应用成果及前景：植被覆盖度是生态学的重要参数，广泛应用于生态环境监测研究。","doi":"10.11888/Ecolo.tpdc.271721","projection":"UTM","language":"zh","share_type":"protected","east":106.7,"west":73.4,"south":24.6,"north":40.4,"scale":null,"crs":null,"filesize":1197824.0,"share_policy":"a","ts_created":"2021-04-28T10:05:14.729792+08:00","doi_type":"拥有自主知识产权","ts_updated":"2022-02-14T17:10:49.896362+08:00","time_description":"1980s-2019年","datas_group":0,"time_description_en":"1980s-2019","data_format":null,"project":[11],"specials":[],"cite":null,"review_status":5,"review_invite":[{"user_name":"冯敏","username":"mfeng","email":"mfeng@itpcas.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":"Monthly","spatial_resolution":"10m - 100m","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[21],"subtopics":{"metadata":"44e63435-a7f4-4597-be28-b419246a572d","three_pole":null,"third_pole":"2019QZKK0300"},"username":"孔令桥","review_time":null,"protected_duration":24,"protected_describe":null,"is_important":false,"hit_count":140}