{"id":"48c16a8d-d307-4973-abab-972e9449627c","title":"全球PML_V2陆地蒸散发与总初级生产力数据集（2002.07-2019.08）","title_en":"PML_V2 global evapotranspiration and gross primary production (2002.07-2019.08)","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\n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。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 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。\n\nPML_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。","doi":"10.11888/Geogra.tpdc.270251","projection":"WGS84","language":"zh","share_type":"online","east":180.0,"west":-180.0,"south":-60.0,"north":90.0,"scale":null,"crs":null,"filesize":19456.0,"share_policy":"a","ts_created":"2020-01-05T18:44:52.680582+08:00","doi_type":"","ts_updated":"2021-04-20T00:49:43.523966+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":"陈彬","username":"chenb","email":"chenb@bnu.edu.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":"0.01º","license":"Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)","fund":[],"subtopics":{"metadata":"48c16a8d-d307-4973-abab-972e9449627c","three_pole":null,"third_pole":null},"username":"Yongqiang Zhang","review_time":"2020-01-11T02:31:50.691986+08:00","protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":15538}