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  2. Past sea level - Wikipedia

    en.wikipedia.org/wiki/Past_sea_level

    Over geologic time sea level has fluctuated by more than 300 metres, possibly more than 400 metres. The main reasons for sea level fluctuations in the last 15 million years are the Antarctic ice sheet and Antarctic post-glacial rebound during warm periods. The current sea level is about 130 metres higher than the historical minimum.

  3. List of elevation extremes by country - Wikipedia

    en.wikipedia.org/wiki/List_of_elevation_extremes...

    sea level 63 m 207 ft Bahrain: Mountain of Smoke (Jabal ad Dukhan) 122 m 400 ft Persian Gulf: sea level 122 m 400 ft Bangladesh: Saka Haphong: 1063 m 3,488 ft Bay of Bengal: sea level 1063 m 3,488 ft Barbados: Mount Hillaby: 336 m 1,102 ft North Atlantic Ocean: sea level 336 m 1,102 ft Belarus: Dzyarzhynskaya Hara: 346 m 1,135 ft Neman: 90 m 295 ft

  4. Sea level - Wikipedia

    en.wikipedia.org/wiki/Sea_level

    Height above mean sea level (AMSL) is the elevation (on the ground) or altitude (in the air) of an object, relative to a reference datum for mean sea level (MSL). It is also used in aviation, where some heights are recorded and reported with respect to mean sea level (contrast with flight level ), and in the atmospheric sciences , and in land ...

  5. Sea level rise - Wikipedia

    en.wikipedia.org/wiki/Sea_level_rise

    Sea surface height change from 1992 to 2019: Blue regions are where sea level has gone down, and orange/red regions are where sea level has risen (the visualization is based on satellite data). [ 2 ] Between 1901 and 2018, the average sea level rose by 15–25 cm (6–10 in), with an increase of 2.3 mm (0.091 in) per year since the 1970s.

  6. List of places on land with elevations below sea level

    en.wikipedia.org/wiki/List_of_places_on_land...

    This is a list of places on land below mean sea level. Places artificially created such as tunnels, mines, basements, and dug holes, or places under water, or existing temporarily as a result of ebbing of sea tide etc., are not included. Places where seawater and rainwater is pumped away are included.

  7. List of countries by average elevation - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    This is a list of countries and territories by their average elevation above sea level based on the data published by Central Intelligence Agency, [1] unless another source is cited. The list includes sovereign states and self-governing dependent territories based upon the ISO standard ISO 3166-1.

  8. Ocean surface topography - Wikipedia

    en.wikipedia.org/wiki/Ocean_surface_topography

    It aims to contribute to observations of the mesoscale ocean variability, affecting the whole oceans. This activity is especially intense near western boundary currents. Also monitor the average sea level because it is a large indicator of global warming through the sea level data. Improvement of tide modeling by observing more long period ...

  9. Ocean - Wikipedia

    en.wikipedia.org/wiki/Ocean

    Strictly speaking, a "sea" is a body of water (generally a division of the world ocean) partly or fully enclosed by land. [21] The word "sea" can also be used for many specific, much smaller bodies of seawater, such as the North Sea or the Red Sea .