{"id":"a796b65e-1198-42e5-9986-9a55f0fa3812","title":"全球PML_V2陆地蒸散发与总初级生产力数据集（2002-2019）","title_en":"PML_V2 global evapotranspiration and gross primary production (2002-2019)","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":"数据以tiff格式存储，文件的名称为“yyyy-mm-dd.tif，如2002-07-04.tif，其对应的是2002-07-04至2002-07-11这个8天里GPP和ET要素的平均。每个tiff文件包含5个变量，1-5层依次对应变量GPP, Ec, Ei, Es, ET_water。\n注意：GPP和ET真实值=像素值*scale_factor （scale_factor=0.01）。","description":"PML_V2陆地蒸散发与总初级生产力数据集，包括总初级生产力（gross primary product, GPP），植被蒸腾（vegetation transpiration, Ec），土壤蒸发（soil PML_V2在Penman-Monteith-Leuning (PML) 模型的基础上，根据气孔导度理论，耦合了GPP过程。GPP与ET相互制约、相互限制，使得PML_V2在ET模拟精度，相对于以往的模型有很大的提升。PML_V2的参数分不同的植被类型，在全球95个涡度相关通量站上率定。其后根据MODIS MCD12Q2.006 IGBP分类，将参数移植至全球。PML_V2采用GLDAS 2.1的气象驱动和MODIS 叶面积指数(LAI)、反射率(Albedo)，发射率(Emissivity)为输入，最终得到PML_V2陆地蒸散发与总初级生产力数据集。evaporation, Es），冠层截流蒸发（vaporization of intercepted rainfall, Ei）和水体、冰雪蒸发（ET_water），共5个要素。数据格式为tiff，时空分辨率为8天、0.05°，时间跨度为2002.07-2019.08。","doi":"DOI:10.11888/Geogra.tpdc.270251","projection":"WGS84","language":"zh","share_type":"offline","east":180.0,"west":180.0,"south":60.0,"north":90.0,"scale":null,"crs":null,"filesize":18944.0,"share_policy":"c","ts_created":"2022-09-22T19:06:25.484490+08:00","doi_type":"拥有自主知识产权","ts_updated":"2022-10-11T11:23:46.417327+08:00","time_description":"2002-09-20--2019-11-17","datas_group":3,"time_description_en":"2002-09-20--2019-11-17","data_format":null,"project":[10],"specials":[],"cite":null,"review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":"Daily","spatial_resolution":"0.01º - 0.05º","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[],"subtopics":{"metadata":"a796b65e-1198-42e5-9986-9a55f0fa3812","three_pole":null,"third_pole":null},"username":"薛可嘉","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":291}