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|a Tipping points for seawater intrusion in coastal aquifers under rising sea level |h [electronic resource]. |
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|a [S.l.] : |b Institute of Physics of Publishing, |c 2013. |
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|a Environmental Research Letters Volume 8. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a This study considers different projections of climate-driven sea-level rise and uses a recently
developed, generalized analytical model to investigate the responses of sea intrusion in
unconfined sloping coastal aquifers to climate-driven sea-level rise. The results show high
nonlinearity in these responses, implying important thresholds, or tipping points, beyond
which the responses of seawater intrusion to sea-level rise shift abruptly from a stable state of
mild change responses to a new stable state of large responses to small changes that can
rapidly lead to full seawater intrusion into a coastal aquifer. The identified tipping points are of
three types: (a) spatial, for the particular aquifers (sections) along a coastline with depths that
imply critical risk of full sea intrusion in response to even small sea-level rise; (b) temporal,
for the critical sea-level rise and its timing, beyond which the change responses and the risk of
complete sea intrusion in an aquifer shift abruptly from low to very high; and (c) managerial,
for the critical minimum values of groundwater discharge and hydraulic head that inland water
management must maintain in an aquifer in order to avoid rapid loss of control and complete
sea intrusion in response to even small sea-level rise. The existence of a tipping point depends
on highly variable aquifer properties and groundwater conditions, in combination with more
homogeneous sea conditions. The generalized analytical model used in this study facilitates
parsimonious quantification and screening of sea-intrusion risks and tipping points under such
spatio-temporally different condition combinations along extended coastlines. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|t Tipping points for seawater intrusion in coastal aquifers under rising sea level |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15061874/00001 |y Click here for full text |
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|3 FULL TEXT- Tipping points for seawater intrusion in coastal aquifers under rising sea level |u http://iopscience.iop.org/article/10.1088/1748-9326/8/1/014001/meta |y Tipping points for seawater intrusion in coastal aquifers under rising sea level |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/06/18/74/00001/FI15061874thm.jpg |
