Ground-Based Measurements and Validation Protocols for Flex

Middleton, Elizabeth M ; Huemmrich, K Fred ; Campbell, Petya K E ; Zhang, Qingyuan ; Landis, David R ; Garrish, Cris ; Ong, Lawrence ; Daughtry, Craig

关键词: ATMOSPHERIC COMPOSITION;    CHLOROPHYLLS;    CORN;    COVARIANCE;    FLOX;    FLUORESCENCE;    HIGH RESOLUTION;    OXYGEN;    REFLECTANCE;    SPECTRORADIOMETERS;    VEGETATION;    VORTICES;    EUROPEAN SPACE AGENCY;    PROTOCOL (COMPUTERS);   

RP-ID  :  GSFC-E-DAA-TN65790

学科分类：地球科学(综合)

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

The upcoming ESA Fluorescence Explorer (FLEX) mission will incorporate ground-based validations for fluorescence parameters and reflectance indices, drawing on an international network of sensors located at eddy covariance tower sites. A program has been initiated by the OPTIMISE program to develop methods and protocols for this network. A sensor system suite under evaluation by OPTIMISE includes the FLoX hyperspectral spectroradiometers. The NASA team at GSFC is participating in this experiment and we report first results from the 2017 summer measurements made above the canopy at the USDA/ARS Beltsville cornfield using the DFLoX and two other leaf-level measurement systems, the MONI-PAM and the FluoWat.