主要是介绍几种覆盖全球的NPP/GPP数据集。 1MODIS GPP\NPP(500m) MODIS GPP\NPP数据是目前使用最广泛的数据集,该数据集已完成产品与地面参考点的比较验证,并提供14个数据类别可供用户下载。 名称类型分辨率合成方式来源 其中,Terra卫星的观测数据即MOD数据,aqua卫星观测数据为MYD数据,Terra是于当地的上午10:30过境...
科学家们采用多种方法来测定它，如产量收割法、氧气测定法、二氧化碳浓度追踪、叶绿素测量、放射性标记和开放顶式同化箱与自由二氧化碳施加技术（Open-top chamber and Free-air CO2 enrichment, FACE）。紧随其后的是净初级生产力（Net Primary Productivity, NPP）</，它揭示了植物光合作用的效率，扣除自...
该数据集对碳循环各组成部分的不确定性进行了估算,包括:土壤碳储量、自养呼吸(Ra)、异养呼吸(Rh)、净生态系统交换(NEE)、净初级生产力(NPP)和总初级生产力(GPP)。不确定性是根据陆地大气碳交换净值趋势计划(TRENDY)和北美碳计划(NACP)区域综合模式输出平均到年度平均值的多模式(n = 20)差异(即标准偏差)计算得...
ABoVE: Multi-model Uncertainty of Carbon Stocks and Fluxes across ABoVE Domain, 2003 简介 文件修订日期:2019-04-18 数据集版本: 1 摘要 该数据集对碳循环各组成部分的不确定性进行了估算,包括:土壤碳储量、自养呼吸(Ra)、异养呼吸(Rh)、净生态系统交换(NEE)、净初级生产力(NPP)和总初级生产力(GPP)。不...
we used a biogeochemical model,BIOME-BGC model,that was validated to estimate GPP (Gross Primary Productivity) and NPP (Net Primary Productivity) of Pinus elliottii forest in red soil hilly region and their responses to interannual climate variability during the period of 1993-2004 and climate ...
The ground-based NPP and GPP surfaces were generated by application of the Biome-BGC carbon cycle process model in a spatially-distributed mode. Model inputs of land cover and leaf area index were derived from Landsat data. The MODIS NPP and GPP products showed no overall bias. They tended ...
ABoVE: Multi-model Uncertainty of Carbon Stocks and Fluxes across ABoVE Domain, 2003 简介 文件修订日期:2019-04-18 数据集版本: 1 摘要 该数据集对碳循环各组成部分的不确定性进行了估算,包括:土壤碳储量、自养呼吸(Ra)、异养呼吸(Rh)、净生态系统交换(NEE)、净初级生产力(NPP)和总初级生产力(GPP)。不...
User's guide: GPP and NPP (MOD17A2/A3) products NASA MODIS land algorithm. Version 2 March 19, 2007Xilinx is disclosing this Document and Intellectual Property (hereinafter "the Design") to you for use in the development of designs to opera... FA Heinsch,M Reeves,CF Bowker,... - 《...
a global scale. Products are Gross Primary Production (GPP), Net Primary Production (NPP). It is based on a modified version of the Farquhar approach (Haxeltine and Prentice 1996, Farquhar et al. 1980). Where possible, it uses vectorization and parallelization and dynamically downloads latest ...
ABoVE: Multi-model Uncertainty of Carbon Stocks and Fluxes across ABoVE Domain, 2003 简介 文件修订日期:2019-04-18 数据集版本: 1 摘要 该数据集对碳循环各组成部分的不确定性进行了估算,包括:土壤碳储量、自养呼吸(Ra)、异养呼吸(Rh)、净生态系统交换(NEE)、净初级生产力(NPP)和总初级生产力(GPP)。不...