2nd Week of July 2019

Gara, Tawanda W., et al. Leaf to canopy upscaling approach affects the estimation of canopy traits. GIScience & remote sensing 56.4 (2019) 554-575.

In remotely sensing, upper-most leaves are dominantly detected so they are usually measured for upscaling, assuming that sunlit leaves are representing the whole canopy. Short plants or plants with sparse leaves, however, cannot be seen dominated by sunlit leaves because of canopy vertical diversity. In that case, it is significantly better to measure sunlit and mid-layer leaves(approach B,D and E) more than to measure only sunlit leaves(C). Though r square in remotely sensing canopy chlorophyll was higher at C, there was no significant difference between 2-leaf and 1-leaf approach.