NDVI from Sentinel-2
The differences in plant development between 2016 and 2018 at the beginning of vegetation season were confirmed by S-2 based NDVI maps and NDVI transects made through wetland area. They reveal in general lower NDVI values in May 2016 than in May 2018.
NDII from Sentinel-2
The exemplary S-2 based NDII maps demonstrating various stages of development of wetland vegetation in 2016 and 2018 are presented below. The maps reveal differences in moisture conditions at the beginning of vegetation season (beginning of May) between two years – more dry conditions in 2016 and more wet in 2018.
NDII from Proba-V
Analogous maps of vegetation indices were generated on the basis of Proba-V images.