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Lake water quality is an important sign of ecosystem health, biodiversity, and sustainable management of freshwater resources. As human activities, climate change, and eutrophication increase, the need for efficient and consistent monitoring methods grows. Traditional field sampling provides accurate local data but is limited by how often and where samples are collected, as well as by high costs. Satellite remote sensing is a practical way to monitor inland water bodies, enabling repeated, large-scale assessments ...

Improving and protecting water quality, for human needs, and for the sustainability of aquatic ecosystems, has become a global priority for this century, involving continuous monitoring of inland water resources, combining in situ measurements with satellite remote sensing, especially from the surface of the water. This could be possible through the Sentinel missions, respectively S2 and S3 of the European Space Agency, equipped with a multispectral instrument on board, which makes it possible to study inland wate...

Forest tree species monitoring is important for forest management, habitat and biodiversity assessment, as well as carbon cycle estimation. Forest ecosystems provide important services to society, and sustainable management and adapted policies are essential to maintain their ecological and socio-economic functions. For implementing a good sustainable forest management it?s important to know about tree species distribution. To characterize forest was used during the time, field inventories who can provide timely a...