Articles | Volume 382
https://doi.org/10.5194/piahs-382-333-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/piahs-382-333-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Altered surface hydrology as a potential mechanism
for subsidence in coastal Louisiana
Department of Physical Geography, Utrecht University, Utrecht, the Netherlands
Torbjörn E. Törnqvist
Department of Earth and Environment Sciences, Tulane University, New
Orleans, LA, USA
Gilles Erkens
Department of Physical Geography, Utrecht University, Utrecht, the Netherlands
Department of Subsurface and Groundwater Systems, Deltares, Utrecht,
the Netherlands
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Short summary
Decreased distance from the marsh to the marsh edge can lower groundwater tables and increase soil stresses that lead to subsidence. We explore the possibility that the canals that have been dug in the wetlands in coastal Louisiana have decreased marsh edge distances and therefore have contributed to subsidence.
Decreased distance from the marsh to the marsh edge can lower groundwater tables and increase...