reduce to mean sea level
1sea ice — Ice formed from frozen seawater in polar regions. Most sea ice occurs as pack ice, which drifts across the ocean surface; other types of sea ice include fast ice, which is attached to coasts and sometimes the seafloor or between grounded icebergs …
2Red Sea — The Red Sea is a salt water inlet of the Indian Ocean between Africa and Asia. The connection to the ocean is in the south through the Bab el Mandeb sound and the Gulf of Aden. In the north are the Sinai Peninsula, the Gulf of Aqaba, and the Gulf …
3Sea otter — Taxobox name = Sea Otter status = EN trend = down status system = iucn2.3 image caption = A sea otter wraps itself in kelp in Morro Bay, California. image width = 250px regnum = Animalia phylum = Chordata subphylum = Vertebrata classis = Mammalia …
4Sea otter conservation — Modern efforts in sea otter conservation began in the early 20th century, when the sea otter was nearly extinct due to large scale commercial hunting. The sea otter was once abundant in a wide arc across the North Pacific ocean, from northern… …
5Mediterranean Sea — a sea surrounded by Africa, Europe, and Asia. 2400 mi. (3865 km) long; 1,145,000 sq. mi. (2,965,550 sq. km); greatest known depth 14,436 ft. (4400 m). Also called Mediterranean. * * * Inland sea enclosed by Europe, Africa, and Asia. Its west east …
6harbours and sea works — Introduction harbour also spelled harbor any part of a body of water and the manmade structures surrounding it that sufficiently shelters a vessel from wind, waves, and currents, enabling safe anchorage or the discharge and loading of… …
7Mediterranean Sea — Mediterranean redirects here. For other uses, see Mediterranean (disambiguation). Mediterranean sea redirects here. For the oceanographical term, see Mediterranean sea (oceanography). Mediterranean Sea Composite satellite ima …
8North Sea — For other uses, see North Sea (disambiguation). North Sea Location Atlantic Ocean Coordinates …
9Irish Sea Tunnel — An Irish Sea Tunnel would link Ireland to Great Britain across the Irish Sea. It has been suggested in the past largely for political reasons. It would be a railway tunnel, similar to the Channel Tunnel across the English Channel. Although the… …
10International Regulations for Preventing Collisions at Sea — The International Regulations for Preventing Collisions at Sea 1972 (COLREGS) are published by the International Maritime Organization (IMO), and set out, inter alia, the rules of the road or navigation rules to be followed by ships and other… …
