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Relative sea level information


Relative sea level (RSL) is defined as the sea level that is observed with respect to a land-based reference frame.[1] It is often contrasted with eustatic sea level, which is a measure of the total mass or volume of the oceans. Relative sea level can change by the processes changing eustatic sea level (e.g., ice melt and thermal expansion), but also by changes on land such as subsidence and isostatic rebound.

In sequence stratigraphy, relative sea level is similarly defined as the distance from the ocean surface to the bottom of the sediment on the ocean floor.[2] Therefore, relative sea level is independent of the thickness of the sediment layer at the bottom of the ocean, which makes it a different concept than water depth.

  1. ^ Rovere, Alessio; Stocchi, Paolo; Vacchi, Matteo (2016). "Eustatic and Relative Sea Level Changes". Current Climate Change Reports. 2 (4): 221–231. doi:10.1007/s40641-016-0045-7. S2CID 131866367.
  2. ^ Cite error: The named reference patzkowskyholland32 was invoked but never defined (see the help page).

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Relative sea level

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Relative sea level (RSL) is defined as the sea level that is observed with respect to a land-based reference frame. It is often contrasted with eustatic...

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Sea level

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Mean sea level (MSL, often shortened to sea level) is an average surface level of one or more among Earth's coastal bodies of water from which heights...

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Sea level rise

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Therefore, local relative sea level rise may be higher or lower than the global average. Changing ice masses also affect the distribution of sea water around...

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Eustatic sea level

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contained in a single basin. Eustatic sea level is not relative to local surfaces, because relative sea level depends on many factors - including tectonics...

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Sea level drop

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Sea level drop refers to the phenomenon in which the shrinking weights of melting glaciers cause the surrounding land to rise and the relative sea level...

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Atmospheric pressure

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was developed for a temperature of 15 °C and a relative humidity of 0%. At low altitudes above sea level, the pressure decreases by about 1.2 kPa (12 hPa)...

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Height above mean sea level

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above mean sea level ASL – above sea level FAMSL – feet above mean sea level FASL – feet above sea level MAMSL – metres above mean sea level MASL – metres...

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Raised beach

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the shoreline by a relative fall in the sea level. Around the world, a combination of tectonic coastal uplift and Quaternary sea-level fluctuations has...

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Sequence stratigraphy

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units primarily in terms of changes in relative sea level (the combination of global changes in eustatic sea level and regional subsidence caused by tectonic...

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Atoll

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either volcanic or nonvolcanic origin below sea level. Then, when relative sea level drops below the level of the flat surface of coral reef, it is exposed...

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Desert of Maine

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isostatic rebound with implications of total isostatic depression and relative sea level". Quaternary Research. 78 (1): 110–118. Bibcode:2012QuRes..78..110O...

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Past sea level

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Global or eustatic sea level has fluctuated significantly over Earth's history. The main factors affecting sea level are the amount and volume of available...

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Humidity

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"Recommended relative humidity level", The engineering toolbox, archived from the original on 2013-05-11, retrieved 2013-05-01, Relative humidity above...

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Seismic stratigraphy

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on an erosional surface approximate the positions of sea level on a coastal plain, the sea level variation of a marine transgression/regression cycle...

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Water level

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Water level, also known as gauge height or stage, is the elevation of the free surface of a sea, stream, lake or reservoir relative to a specified vertical...

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Bornean tiger

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Borneo and Palawan was shorter, and the sea level was lower, than today. During this period, the relative sea level decreased to about −130 m (−430 ft) due...

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Barents Sea

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Barents Sea environment and conservation. Zeeberg, JaapJan; David J. Lubinski; Steven L. Forman (September 2001). "Holocene Relative Sea Level History...

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Tide gauge

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measuring the change in sea level relative to a vertical datum.[citation needed] It is also known as a mareograph, marigraph, and sea-level recorder When applied...

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Geoid

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the geoid relative to a given ellipsoid of reference. The undulation is not standardized, as different countries use different mean sea levels as reference...

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Microatoll

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quantify and date changes in relative sea level in seismically active areas, and to provide information on changes in sea surface temperature using oxygen...

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Craton

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that they may alternate between periods of high and low relative sea levels. High relative sea level leads to increased oceanicity, while the opposite leads...

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Carbonate platform

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the relative sea level, only limited number of processes can cause it. According to Schlager, only anomalously quick rise of relative sea level or benthic...

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Mississippi River Delta

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5,500 years ago when relative sea level rapidly rose. 2. The Teche delta formed 5,500 to 3,500 years ago after relative sea level rise decelerated. 3....

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Greenland

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Jensen, J. F. (1997). "Ancient Eskimo dwelling sites and Holocene relative sea-level changes in southern Disko Bugt, central West Greenland". Polar Research...

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Geologic time scale

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(1452–1519) would reinvigorate the relationships between stratification, relative sea-level change, and time, denouncing attribution of fossils to the 'Deluge':...

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Delta Works

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change and relative sea-level rise, the dikes will eventually have to be made higher and wider. This is a long term uphill battle against the sea. The needed...

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Peneplain

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climate, relative sea level and biota make old surfaces unlikely to be of a single origin. Peneplains that are detached from their base level are identified...

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