Temporal upscaling of MODIS instantaneous FAPAR improves forest gross primary productivity (GPP) simulation

Yinghui Zhang,Zhongwen Hu,Jingzhe Wang,Xing Gao,Cheng Yang,Fengshuo Yang,Guofeng Wu

International Journal of Applied Earth Observation and Geoinformation（2023）

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摘要

•MODIS instantaneous FAPAR was temporal upscaled to daily value.•MOD17 LUE model was optimized by MCMC method.•Upscaled FAPAR reduced uncertainties of GPP estimation by 6.82–7.8%.•The accuracy of existing GPP products should be improved.

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关键词

Temporal upscale, FAPAR, GPP, Forest, Fluxnet

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