{"id":"1db6479e-163e-44ed-b042-c6896f9bd0ee","title":"青藏高原区域耦合地形效应的日地表反照率数据集（2002-2020）","title_en":"The daily albedo product coupling topographic effects over the Tibet Plateau (2002-2020)","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":"文件命名约定：MOD0ALALBEDO.AYYYYDDD.DBATP.tif（YYYY：年，DDD：日（儒略日）），比如 ALBEDOMOD0AL.A2016001.DBATP.tif，表示2016年第一天的青藏高原的反照率\n数据读取方式：以tif格式存储，可用ENVI ,Arcgis等软件打开\n数据版本号：V1\n投影：+proj=longlat +datum=GCS_WGS_1984\n数据格式：tif, 12507464行×3312750列\n填充值：32767\nscale: /10000（除以10000，为实际反照率值）\n波段说明：第1-2波段为当地正午时刻可见光、短波波段黑空反照率；第3-4波段可见光、短波波段白空反照率；","description":"本数据集为青藏高原区域2002-2020年日分辨率0.00425° x0.00425°地表反照率产品。基于MODIS反射率数据，采用耦合地形因子的多源遥感数据协同反演的BRDF\\反照率模型，并引入先验知识进行质量控制，反演时空连续的日分辨率的高精度BRDF/反照率。MODIS地表反射率数据（MOD09GA、MYD09GA）集为官方网站下载，以5天为周期合成日分辨率BRDF，进而估算日分辨率的反照率，其中，黑空反照率的太阳入射为当地正午时太阳入射。经过验证评估，满足反照率应用精度要求，相较于同类产品在山区站点的验证精度更高，且时空连续性更好。可有效支撑青藏高原地区辐射平衡、环境变化研究。","doi":"10.11888/Terre.tpdc.272047","projection":"WGS84","language":"zh","share_type":"online","east":105.0,"west":73.0,"south":25.0,"north":40.0,"scale":null,"crs":null,"filesize":200.0,"share_policy":"a","ts_created":"2022-02-07T15:49:01.978384+08:00","doi_type":"拥有自主知识产权","ts_updated":"2022-03-01T10:13:57.784276+08:00","time_description":"","datas_group":3,"time_description_en":"","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":"Daily","spatial_resolution":"100m - 1km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[393,469],"subtopics":{"metadata":"1db6479e-163e-44ed-b042-c6896f9bd0ee","three_pole":null,"third_pole":null},"username":"姬大彬","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":130}