the Normalized Difference Vegetation Index with time

Abstract Practical geologic CO2 sequestration will require long-term monitoring for detection of possible leakage back into the atmosphere. One potential monitor-ing method is multi-spectral imaging of vegetation reflec-tance to detect leakage through CO2-induced plant stress. A multi-spectral imaging system was used to simulta-neously record green, red, and near-infrared (NIR) images with a real-time reflectance calibration from a 3-m tall platform, viewing vegetation near shallow subsurface CO