sea level measurement
1Sea 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 …
2Sea 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 …
3sea level — The level of the sea, which serves as the datum used for measurement of land elevations and ocean depths. Sea levels vary greatly from one location to another. Locally, the levels of the surface of the world’s oceans are disturbed by wind driven… …
4Current sea level rise — This article is about the current and future rise in sea level associated with global warming. For sea level changes in Earth s history, see Sea level#Changes through geologic time. Sea level measurements from 23 long tide gauge records in… …
5Meters above sea level — is a standard metric measurement of the elevation of a location in reference to historic mean sea level; the determination of what actually constitutes mean sea level over time however, may be determined by other parameters, such as the effects… …
6Permanent Service for Mean Sea Level — The Permanent Service for Mean Sea Level ( [http://www.pol.ac.uk/psmsl/ PSMSL] ), established in 1933, is a repository for tide gauge data used in the measurement of long term sea level change. The PSMSL is based at the Proudman Oceanographic… …
7Sea 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… …
8level — [lev′əl] n. [OFr livel < VL * libellus < L libella, dim. of libra, a balance, level, weight] 1. an instrument for determining, or adjusting a surface to, an even horizontal plane: it has a glass tube partly filled with liquid so as to leave …
9Sea surface temperature — Weekly average sea surface temperature for the World Ocean during the first week of February 2011, during a period of La Niña …
10Measurement of sea ice — Annual growth and retreat of the polar ice packs from SeaWiFS images Measurement of sea ice is important for safety of navigation and for monitoring the environment, particularly the climate. Record keeping of direct observations began over a… …
