{"id":"02caa2c4-f369-47c2-a6c6-f4a9965f4bdf","title":"中国长江上游GLASS 250米LAI产品(2001-2020)","title_en":"GLASS 250m LAI products in the upper reaches of Yangtze River in China (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：205米GLASS LAI产品以GeoTIFF格式存储，文件的名称为\"GLASS01D01.yyyyddd.LAI_250M.tif\"，其中yyyy代表年，ddd代表Julian日期，比如GLASS01D01.A2005001.LAI_250M.tif就代表这个GeoTIFF文件描述2005年第一天长江上游及西南地区的叶面积指数情况。\n数据读取方式：该数据集中的所有GeoTIFF可以直接用Arcgis打开。","description":"叶面积指数（Leaf Area Index, LAI）是陆地生态系统中反映植被生长状况的基本变量，在碳循环、气候模式、陆地生态系统模拟和植被变化监测中发挥着重要作用。目前国际上已有多种中等分辨率的全球LAI产品，包括MODIS、GEOV、GLASS LAI等，但它们存在着时空不连续、产品的时间跨度、精度等局限性。梁顺林教授团队的马晗博士基于MODIS地表反射率数据，生成GLASS 第六版（V6）250米叶面积指数，该产品克服了在长期云或雪覆盖地区LAI质量低且时空不连续等问题，是目前空间分辨率最高的长时间序列的全球LAI产品。","doi":"","projection":"UTM","language":"zh","share_type":"online","east":112.0,"west":89.0,"south":24.0,"north":36.5,"scale":null,"crs":null,"filesize":278528.0,"share_policy":"a","ts_created":"2022-09-25T11:43:56.205408+08:00","doi_type":"拥有自主知识产权","ts_updated":"2022-10-17T19:30:55.769193+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[10],"specials":["b4b306da-eab1-47ef-ae5d-be2556298efd"],"cite":null,"review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":"Daily","spatial_resolution":"100m - 1km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"02caa2c4-f369-47c2-a6c6-f4a9965f4bdf","three_pole":null,"third_pole":null},"username":"李丹丹","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":279}