Modelling marsh-forest boundary transgression in response to storms and sea-level rise

Geophysical Research Letters
By: , and 

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Abstract

The lateral extent and vertical stability of salt marshes experiencing rising sea levels depend on interacting drivers and feedbacks with potential for non‐linear behaviors. A two‐dimensional transect model was developed to examine changes in marsh and upland forest lateral extent and to explore controls on marsh inland transgression. Model behavior demonstrates limited and abrupt forest retreat with long‐term upland boundary migration rates controlled by slope, sea level rise (SLR), high water events and biotic‐abiotic interactions. For low to moderate upland slopes the landward marsh edge is controlled by the interaction of these inundation events and forest recovery resulting in punctuated transgressive events. As SLR rates increase, the importance of the timing and frequency of water level deviations diminishes, and migration rates revert back to a slope‐SLR dominated process.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Modelling marsh-forest boundary transgression in response to storms and sea-level rise
Series title Geophysical Research Letters
DOI 10.1029/2020GL088998
Volume 47
Issue 17
Year Published 2020
Language English
Publisher American Geophysical Union
Contributing office(s) Patuxent Wildlife Research Center
Description e2020GL088998, 10 p.
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