Case study areas

CERTO is using six case study areas spread across European coastal waters to provide a range of transitional environments to ensure a full range of Optical Water Types and associated algorithms are fully characterised and validated.

These six areas are spread all across Europe and provide contrasting environments to study, ranging from the large watersheds of the Elbe, Curonian and Tagus to the smaller catchments of the Tamar, Venice and Razelm-Sinoe. Four of the upstream regions cross geopolitical boundaries, which has complex implications for management of these areas.

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Curonian lagoon, Russia/Lithuania

The Curonian Lagoon is a transboundary water shared between Russia and Lithuania and separated from the Baltic Sea by the Curonian Spit. With a surface area of 1,584 km2, it is the largest lagoon in Europe. The lagoon is shallow (mean depth 3.8 m) with a mainly freshwater ecosystem. The main tributary is the... Read more >
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Elbe estuary, Germany

The German Bight is a large, temperate, relatively flat coastal wetland environment, formed by the intricate interactions between physical and biological factors that have given rise to a multitude of transitional habitats with tidal channels, sandy shoals, sea-grass meadows, mussel beds, sandbars, mudflats, salt marshes... Read more >
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Razelm-Sinoe lagoon, Romania

The lagoon system is divided in two units (Razelm and Sinoe) formed by semi-independent lakes. Razelm has an area of 415km2 and a maximum depth of 3.2m and Sinoe has 171km2 and a maximum depth of 2.2m.The lagoon shares its southern, western and eastern limits with the Danube Delta Biosphere Reserve boundaries, the... Read more >
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Tagus estuary, Portugal

This estuary is one of the largest in Europe, with a broad shallow bay covering an area of about 320 km2. It is mesotidal with semi-diurnal tides. The Tagus river is the main source of freshwater to the estuary. An in situ monitoring program with monthly sampling at four sites has been running since 1999.  This measures... Read more >
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Tamar estuary, UK

Plymouth Sound is part of the Western Channel Observatory (WCO) situated on the north-west European Shelf that straddles several biogeographical provinces. The marine laboratories in Plymouth have sampled at several sites within the western English Channel for over a century in open shelf (e.g. station E1) and coastal (e.g. station... Read more >
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Venice lagoon, Italy

The lagoon maintains a connection to the northern Adriatic Sea through the inlets of Lido, Malamocco, and Chioggia, and the exchange of water through the inlets in each tidal cycle is about a third of the total volume of the lagoon. The northern Adriatic Sea is a shallow and semi-enclosed regional sea, influenced by the plumes of... Read more >

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