The remainder of the Sea is brackish, poor in The Kattegat and the southwestern Baltic Sea are well oxygenated and have a rich biology. The Baltic Sea is in a "critical" condition and in danger of dying unless pollution from the Russian city of St Petersburg is drastically cut.ĭrodgen Sill (depth of 7 metres) sets a limit to Øresund and Darss Sill (depth of 18 metres), and a limit to the Belt Sea.The shallow sills are obstacles to the flow of heavy salt water from the Kattegat into the basins around Bornholm and Gotland. Reporting on the Baltic seaport of Stralsund said low oxygen levels have rendered around 70,000 square meters of the sea uninhabitable. The Baltic Sea has a narrow outlet to the ocean - between Sweden and Denmark -īecause of this the water takes 25-30 years to refresh itself. Into the open ocean, ending up on beaches as a subsurface soup that is Plastic and other waste gets into the Baltic Sea, it cannot easily escape By this definition, the Danish Straits are part of the entrance, but the Bay of Mecklenburg and the Bay of Kiel are parts of the Baltic Sea. The Drogden Sill is situated north of Køge Bugt and connects Dragør in the south of Copenhagen to Malmö it is used by the Øresund Bridge, including the Drogden Tunnel. Geographers widely agree that the preferred physical border of the Baltic is a line drawn through the southern Danish islands, Drodgen-Sill and Langeland. The narrowest part of Little Belt is the "Middelfart Sund" near In the Little Belt, the site of intake was moved to Fredericia, after that stronghold had been built. They were collected in the Øresund at Kronborg castle near Helsingør, in the Great Belt at Nyborg. Historically, the Kingdom of Denmark collected Sound Dues from ships at the border between the ocean and the land-locked Baltic Sea. The Helsinki Convention on the Protection of the Marine Environment of the Baltic Sea Area includes the Baltic Sea and the Kattegat, without calling Kattegat a part of the Baltic Sea, "For the purposes of this Convention the "Baltic Sea Area" shall be the Baltic Sea and the Entrance to the Baltic Sea, bounded by the parallel of the Skaw in the Skagerrak at 57☄4.43'N." The periphery amounts to about 8,000 km (5,000 mi) of coastline.īusy Baltic route leads to high levels of exhaust and other pollution. The surface area is about 349,644 km² (145,522 sq mi) and the volume is about 20,000 km³ (5040 cubic miles). The maximum depth is 459 m (1506 ft) which is on the Swedish side of the center. The Kattegat is bounded on the north by the Skagerrak, a deep inlet of the North Sea that separates southernĪverage depth is 55 m (180 ft, 30 fathoms). The western Baltic extends north through insularĭenmark and includes the Kattegat, a strait separating peninsular Denmark (Jutland, or Jylland) from southwestern The Baltic proper stretches southwest-northeast on the eastern side of the Scandinavian Peninsula from latitude 54° N to very near the Arctic Circle its major axis, from eastern Denmark to southernįinland, is a little more than 1,000 miles (1,600 km) long, with an average width of about 120 miles (190 km). The catchment area drained by the rivers bringing fresh water into the Baltic is about four times as large as the sea itself. The central part, also called the Baltic Proper, is bordered on its northern edge by the Gulf of Bothnia, on its northeastern edge by the Gulf of Finland, and on its eastern edge by the Gulf of Riga.īaltic Sea covers about 149,000 square miles (386,000 square km). The Baltic Sea is connected by artificial waterways to the White Sea via the White Sea Canal, and to the German Bight of the North Sea via the Kiel Canal. The Kattegat continues through Skagerrak into the North Sea and the Atlantic Ocean. It drains into the Kattegat by way of the Øresund, the Great Belt and the Little Belt. It is bounded by the Swedish part of the Scandinavian Peninsula, the mainland of Europe, and the Danish islands. Mediterranean sea located between Central and Northern Europe, from 53°N to 66°N latitude and from 10☎ to 30☎ longitude.
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