Mathematics – Logic
Scientific paper
Nov 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3821404k&link_type=abstract
Geophysical Research Letters, Volume 38, Issue 21, CiteID L21404
Mathematics
Logic
Global Change: Climate Variability (1635, 3305, 3309, 4215, 4513), Global Change: Sea Level Change (1222, 1225, 4304, 4556), Hydrology: Anthropogenic Effects (4802, 4902), Hydrology: Geomorphology: General (1625)
Scientific paper
While subsidence is widely recognized as a driver of geomorphic change in the northern Gulf of Mexico (GOM), there is considerable disagreement over the rates of subsidence and the interpreted variability in these rates, which leads to controversies over the impacts of subsidence on surface land area change. Here we present a new method to calculate subsidence rates from the tide gauge record that is based on an understanding of the meteorological drivers of inter-annual sea-level change. In Grand Isle, LA and Galveston, TX, we explicitly show that temporal patterns of subsidence are closely linked to subsurface fluid withdrawal and coastal land loss, and suggest changes in withdrawal rates can both increase and decrease rates of subsidence and wetland loss. Our results also imply that the volume of sediment needed to rebuild GOM wetlands may currently fall within the low end of some restoration scenarios.
Allison Mead A.
Hameed Sultan
Kolker Alexander S.
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