{"id":"bf9ff4ca-e623-4ac5-bba9-c2092fc8d800","title":"欧亚大陆北方最大叶面积指数数据集（1981-2017）","title_en":"Maximum leaf area index data set of northern Eurasia (1981-2017)","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：最大叶面积指数数据以TIF格式储存，文件的名称为“EA_north_max_yyyy.tif”，其中yyyy代表年，比如EA_north_max_1981.tif代表1981年欧亚大陆北方最大叶面积指数。\n数据读取方式：可直接用ArcGIS软件打开。","description":"采用全球陆表特征参量（叶面积指数LAI）产品，空间分辨率为5 km。该产品使用广义回归神经网络方法，由AVHRR地表反射率数据反演LAI。本研究下载了1981–2017年中亚5国、蒙古国和中国北方每年6-8月的12期LAI数据产品，来源于国家科技基础条件平台——国家地球系统科学数据中心。用ArcGIS软件对这些影像进行裁剪，并计算最大值，由此获得最大LAI的时空数据集。其中，中亚5国包括土库曼斯坦、吉尔吉斯斯坦、哈萨克斯坦、塔吉克斯坦和乌兹别克斯坦；中国北方指中国长江以北地区。","doi":"10.11888/Ecolo.tpdc.271153","projection":"Albers","language":"zh","share_type":"offline","east":135.14,"west":46.56,"south":31.34,"north":55.58,"scale":null,"crs":null,"filesize":176.0,"share_policy":"c","ts_created":"2021-01-25T21:45:09.419187+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-04-19T21:12:20.872615+08:00","time_description":"","datas_group":0,"time_description_en":"","data_format":null,"project":[11],"specials":["f2a78cde-1c98-4241-94dc-7532eba32b80"],"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":"Yearly","spatial_resolution":"1km - 10km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"bf9ff4ca-e623-4ac5-bba9-c2092fc8d800","three_pole":null,"third_pole":"XDA20050103"},"username":"XDA20050103","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":4027}