120:. As continental ice accumulates, the ocean water freezes onto land but the salt it carried will mostly remain in the ocean. Thus, as ice sheets increase, ocean salinity also increases (and vice versa). An increase in salinity will increase the density of the ocean basin. Melting of ice sheets and a decrease of ocean salinity will effectively decrease the density of the water. These two effects together result in the
102:) begins to lose some of its ice mass due to melt, the liquid water is transported to the ocean. According to the "bathtub approach", ice-sheet runoff from Greenland will affect eustatic sea level in all areas of the world, whether nearby or distant. Ocean water mass may shrink in size if the continental ice sheets grow in size, thereby removing liquid water from oceans and converting them to grow ice sheets
90:, continental rise and subsidence. Eustatic sea level follows the "bathtub approach" which describes the ocean as a single bathtub. One can add or remove water and Earth's oceans will gain or lose water globally. Differences in eustatic sea level over time stem from three main factors:
81:
The eustatic (global) sea level is the volume of Earth's oceans. This is not a physical level but instead represents the sea level if all of the water in the oceans were contained in a single basin. Eustatic sea level is not relative to local surfaces, because relative
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Ahlstrøm, A. P., Petersen, D., Langen, P. L., Citterio, M., & Box, J. E. (2017). Abrupt shift in the observed runoff from the southwestern
Greenland ice sheet. Science Advances,3(12).
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or increasing the number of mid-oceanic ridges. Conversely, increasing glaciation, decreasing spreading rates or fewer mid-ocean ridges can lead to a fall in the eustatic sea level.
116:. Warming will cause water to experience greater molecular motion, thus increasing the volume a molecule will occupy. Expansion of water may also be caused by changes in ocean
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Rovere, A., Stocchi, P., & Vacchi, M. (2016). Eustatic and
Relative Sea Level Changes. Current Climate Change Reports,2(4), 221-231.
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Changes in the size of the ocean basin, for instance, by tectonic seafloor spreading or by
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Changes in total ocean water mass, for instance, by ice-sheet runoff. When an
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54:. An increase of the eustatic sea level can be generated by decreasing
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156:. Chicago: University of Chicago University Press. p. 30.
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Rovere, Alessio; Stocchi, Paolo; Vacchi, Matteo (2016).
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Distance from the center of the Earth to the sea surface
171:. Tulsa: Society for Sedimentary Geology. p. 92.
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Changes in the eustatic sea level lead to changes in
46:, "standing") is the distance from the center of the
288:"Mechanisms of Global-Mean Steric Sea Level Change"
131:sea level, whereas the salinity part is called the
169:Carbonate Sedimentology and Sequence Stratigraphy
152:Patzkowsky, Mark E.; Holland, Steven M. (2012).
112:Density changes of the water, for instance, by
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286:Piecuch, Christopher; Ponte, Rui (2014).
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247:"Eustatic and Relative Sea Level Changes"
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69:and therefore affect the deposition of
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86:depends on many factors – including
58:, increasing spreading rates of the
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127:. The thermal part is called the
251:Current Climate Change Reports
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198:doi:10.1007/s40641-016-0045-7
209:CU Sea Level Research Group
167:Schlager, Wolfgang (2005).
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225:doi:10.1126/sciadv.1701169
154:Stratigraphic Paleobiology
313:10.1175/JCLI-D-13-00373.1
264:10.1007/s40641-016-0045-7
213:Sea Level Research Group
73:in marine environments.
42:, "good" and στάσις
304:2014JCli...27..824P
292:Journal of Climate
32:eustatic sea level
178:978-1-56576-116-2
114:thermal expansion
16:(Redirected from
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52:sea surface
140:References
135:sea level.
133:halosteric
56:glaciation
333:Sea level
273:131866367
125:sea level
100:Greenland
98:(such as
96:ice sheet
88:tectonics
84:sea level
71:sediments
327:Category
118:salinity
77:Overview
300:Bibcode
50:to the
18:Eustasy
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123:steric
44:stásis
34:(from
269:S2CID
48:Earth
36:Greek
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308:doi
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