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Permanent loss of barrier island resilience due to a critical transition in dune ecosystems

Earth Sciences

Permanent loss of barrier island resilience due to a critical transition in dune ecosystems

K. A. Ramakrishnan, T. Rinaldo, et al.

This groundbreaking research by Kiran Adhithya Ramakrishnan, Tobia Rinaldo, Ignacio Rodriguez-Iturbe, and Orencio Durán Vinent explores how Virginia's barrier islands are at risk of shifting from lush dunes to barren landscapes due to rising sea levels, unveiling a critical tipping point in coastal protection.

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Playback language: English
Abstract
Barrier islands, crucial for coastal protection, are vulnerable to transitioning from a high state (with dunes) to a barren state (without dunes). This study investigates this transition using data from Virginia's barrier islands. A nonlinear stochastic model reveals a tipping point where islands with elevations around beach berms critically transition to a permanently barren state, indicating frequent flooding and potential drowning under sea level rise.
Publisher
Communications Earth & Environment
Published On
Aug 20, 2024
Authors
Kiran Adhithya Ramakrishnan, Tobia Rinaldo, Ignacio Rodriguez-Iturbe, Orencio Durán Vinent
Tags
barrier islands
coastal protection
sea level rise
tipping point
nonlinear stochastic model
flooding
dunes

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