Image of the day

Sediment colours the shallow waters of Estonia’s Väinameri Sea

Earth Observation | Copernicus
Coastal Environment
Water Colour
Väinamere
Location: Estonia
Credit: European Union, Copernicus Sentinel-2 imagery

The Väinameri Sea, a shallow marine area in western Estonia, is one of the country’s most ecologically valuable coastal regions. Characterised by a network of narrow straits and semi-enclosed bays, these waters support extensive seagrass habitats, migratory bird populations, and protected coastal ecosystems linked to the Natura 2000 network, the EU’s framework for nature protection.

Acquired by one of the Copernicus Sentinel-2 satellites on 1 May 2026, this natural-colour image shows the Väinameri Sea. Bright blue tones, contrasting with the darker surrounding waters, indicate dense sediment concentrations spreading through the shallow channels.   

Copernicus Sentinel data support regular monitoring of coastal water conditions, helping environmental authorities assess sediment dynamics, marine ecosystem health, and seasonal change.

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