Table of Contents
Remote Sens., Volume 8, Issue 10 (October 2016)
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Cover Story (view full-size image) Monitoring vegetation phenology with digital color cameras has become highly popular now that time [...] Read more. Monitoring vegetation phenology with digital color cameras has become highly popular now that time lapse cameras are commonly available at low cost. Their applicability and accuracy in high-arctic environments, however, remains unknown. In our study, we studied three camera-derived greenness indices in six different plant species/groups in a high-arctic valley, and compared these to measurements with non-imaging normalized difference vegetation index (NDVI) sensors. All three greenness indices from the color cameras captured similar vegetation attributes to the NDVI. However, the Green Red Vegetation Index (GRVI) was the most correlated with the NDVI among all six plant species/groups, and successfully recorded the timing of the green-up, plant growth period and senescence in all plant species/groups. Thus, camera-derived greenness indices are useful methods to track the phenology of vegetation in high-arctic environments. View this pape