Paris (ESA) Sep 19, 2023

This Copernicus Sentinel-2 image features swirls of vivid, emerald green algal blooms in the Gulf of Finland.

Zoom in to explore this image at its full 10 m resolution or click on the circles to learn more.

The Gulf of Finland is the easternmost arm of the Baltic Sea. The area pictured shows the western part of the Gulf. Helsinki, Finland’s capital and most populous city, is visible
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