ABSTRACT

NIR Near-infrared NOAA National Oceanic and Atmospheric Administration NPP National Polar-orbiting Partnership OLI Operational Land Imager PAC Partial atmosphere correction RMSD Root mean square di§erence SAVI Soil-Adjusted Vegetation Index SeaWiFS Sea-Viewing Wide Field-of-View Sensor SGLI Second-generation Global Imager SPOT Système Pour l’Observation de la Terre sRMPD Systematic square root of mean product di§erence TM Ÿematic Mapper TOA Top of the atmosphere TOC Top of canopy uRMPD Unsystematic square root of mean product di§erence VGT VEGETATION VIIRS Visible Infrared Imaging Radiometer Suite

Ÿe Enhanced Vegetation Index (EVI), an index developed for the National Aeronautics and Space Administration (NASA) Earth Observing System (EOS) Moderate Resolution Imaging Spectroradiometer (MODIS) mission (Huete et  al., 2002), has been shown useful across a wide range of terrestrial vegetation studies. Ÿese include climate-vegetation interactions (Saleska

Acronyms and De¦nitions .................................................................................................................155 7.1 Introduction .............................................................................................................................155 7.2 EVIs ........................................................................................................................................... 156 7.3 Multisensor Applications of EVI and EVI2 ........................................................................157 7.4 Multisensor Compatibility of EVI and EVI2: A Review ...................................................157 7.5 Atmospheric Impact on Inter-and Intrasensor Spectral Compatibility of EVI

7.6 Intersensor Calibration of EVI and EVI2 ............................................................................166 7.7 Discussions and Future Directions .......................................................................................169 Appendix 7.A Inter-and Intrasensor Spectral Relationships for EVI and EVI2 ........................170 References .............................................................................................................................................171