mean sea water
1mean sea level — the mean surface water level determined by averaging heights at all stages of the tide over a certain period, usually a 19 year period. Usually determined from a fixed predetermined reference level or chart datum …
2mean sea level — noun the sea level halfway between the mean levels of high and low water …
3Vienna Standard Mean Ocean Water — VSMOW, or Vienna Standard Mean Ocean Water, is an isotopic water standard defined in 1968 by the International Atomic Energy Agency. Despite the somewhat misleading phrase ocean water , VSMOW refers to pure water (H2O) and does not include any… …
4Sea level rise — is an increase in sea level. Multiple complex factors may influence this change. Sea level has risen about 130 meters (400 ft) since the peak of the last ice age about 18,000 years ago. Most of the rise occurred before 6,000 years ago. From 3,000 …
5Sea ice — is largely formed from seawater that freezes. Because the oceans consist of saltwater, this occurs below the freezing point of pure water, at about 1.8 °C (28.8 °F). Sea ice may be contrasted with icebergs, which are chunks of ice shelves or… …
6Water supply — is the process of self provision or provision by third parties of water of various qualities to different users. Irrigation is covered separately. Global access to waterIn 2004 about 3.5 billion people worldwide (54% of the global population) had …
7Water Resistant mark — Water Resistant is a common mark stamped on the back of wrist watches to indicate how well a watch is sealed against ingress of water. It is usually accompanied by an indication of the static test pressure that a sample of newly manufactured… …
8Sea level — For the sea level change associated with the current episode of global warming, see current sea level rise. For other uses, see Sea level (disambiguation). This marker indicating the sea level is placed on the path from Jerusalem to the Dead Sea …
9Water (molecule) — Chembox new Name = Water (H2O) ImageFileL1 = Water 2D labelled.png ImageSizeL1 = 120px ImageNameL1 = The water molecule has this basic geometric structure ImageFileR1 = Water molecule 3D.svg ImageSizeR1 = 100px ImageNameR1 = Space filling model… …
10Sea 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 …
