Hi, I want to realize a project of monitoring of Forest Health status on a large scale in Europe. But I don't are sure of the index that can be better to use for this task. maybe the NDVI is one of the most popular, but I have read something about the NDWI and EVI. What do you think about the better index to assess the health status or the decline of the vegetation canopy of the European forest?
Help me, thank you very much
They are all good but measure slightly different aspects. You can use a combination
Dear Antonio Luca Conte ,
if your question is still relevant, see our article, where various vegetation indices were compared (NDVI, NDMI, FMI, SR, TVI, wNDII) for long-term forest change detection in Slovakia and Czechia using Landsat data:Article Evaluation of the Influence of Disturbances on Forest Vegeta...
(NDMI appeared to the best for evaluating the individual stages of disturbance - especially the bark beetle calamity)and the paper dealing with comparison of vegetation indexes (NDVI and NDMI) and orthogonal indexes (TCG, TCW) to distinguish between healhty forests, forests after disturbane and in recovery phase using Sentinel-2 data: Article Sentinel-2 Data in an Evaluation of the Impact of the Distur...
(using the NDMI we achieved the best results again)All the best,
Daniel
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