Correcting Clear‐Sky Bias in Gross Primary Production Modeling From Satellite Solar‐Induced Chlorophyll Fluorescence Data
Zhaoying Zhang, Yongguang Zhang, Yao Zhang, Jing M. Chen
Abstract
Key Points A practical approach is proposed to correct clear‐sky bias in GPP estimation from satellite clear‐sky SIF data The reduction in GPP due to the decreasing PAR is partly compensated by enhancement of light use efficiency under cloudy conditions Global terrestrial GPP is obtained from total canopy SIF emission after correcting clear‐sky bias
Topics & Concepts
SkySatelliteEnvironmental scienceRemote sensingPrimary productionCanopyAtmospheric sciencesMeteorologyGeographyPhysicsAstronomyArchaeologyEcologyBiologyEcosystemPlant Water Relations and Carbon DynamicsRemote Sensing in AgricultureAtmospheric and Environmental Gas Dynamics