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Coastal subsidence and relative sea level rise

S E Ingebritsen / D L Galloway

Subsurface fluid-pressure declines caused by pumping of groundwater or hydrocarbons can lead to aquifer-system compaction and consequent land subsidence. This subsidence can be rapid, as much as 30 cm per year in some instances, and large, totaling more than 13 m in extreme examples. Thus anthropogenic subsidence may be the dominant contributor to relative sea-level rise in coastal environments where subsurface fluids are heavily exploited. Maximum observed rates of human-induced subsidence greatly exceed the rates of natural subsidence of unconsolidated sediments (∼0.1–1 cm yr ^−1 ) and the estimated rates of ongoing global sea-level rise (∼0.3 cm yr ^−1 ).

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Coastal subsidence and relative sea level rise

S E Ingebritsen / D L Galloway

Subsurface fluid-pressure declines caused by pumping of groundwater or hydrocarbons can lead to aquifer-system compaction and consequent land subsidence. This subsidence can be rapid, as much as 30 cm per year in some instances, and large, totaling more than 13 m in extreme examples. Thus anthropogenic subsidence may be the dominant contributor to relative sea-level rise in coastal environments where subsurface fluids are heavily exploited. Maximum observed rates of human-induced subsidence greatly exceed the rates of natural subsidence of unconsolidated sediments (∼0.1–1 cm yr ^−1 ) and the estimated rates of ongoing global sea-level rise (∼0.3 cm yr ^−1 ).

Coastal subsidence and relative sea level rise

S E Ingebritsen / D L Galloway

Subsurface fluid-pressure declines caused by pumping of groundwater or hydrocarbons can lead to aquifer-system compaction and consequent land subsidence. This subsidence can be rapid, as much as 30 cm per year in some instances, and large, totaling more than 13 m in extreme examples. Thus anthropogenic subsidence may be the dominant contributor to relative sea-level rise in coastal environments where subsurface fluids are heavily exploited. Maximum observed rates of human-induced subsidence greatly exceed the rates of natural subsidence of unconsolidated sediments (∼0.1–1 cm yr ^−1 ) and the estimated rates of ongoing global sea-level rise (∼0.3 cm yr ^−1 ).

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Title:

Coastal subsidence and relative sea level rise

Contributors:

S E Ingebritsen (author) / D L Galloway (author)

Published in:

Environmental Research Letters, Vol 9, Iss 9, p 091002 (2014)

Publication date:

2014

ISSN:

DOI:

https://doi.org/10.1088/1748-9326/9/9/091002

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

Keywords:

subsidence , groundwater , coastal , Environmental technology. Sanitary engineering , TD1-1066 , Environmental sciences , GE1-350 , Science , Q , Physics , QC1-999

Metadata by DOAJ is licensed under CC BY-SA 1.0

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