| Autor: |
Kiran Adhithya Ramakrishnan, Tobia Rinaldo, Ignacio Rodriguez-Iturbe, Orencio Durán Vinent |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Communications Earth & Environment, Vol 5, Iss 1, Pp 1-10 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2662-4435 |
| DOI: |
10.1038/s43247-024-01611-4 |
| Popis: |
Abstract Barrier islands cover a large fraction of US coasts and support unique ecosystems and coastal infrastructure. The ‘barrier’ function of a barrier island depends on coastal dunes that can prevent storm flooding and widespread ecosystem loss. Furthermore, dune-less barriers are more susceptible to breaching and potential drowning under sea level rise. Here we study the transition from richly-vegetated barriers with mature dunes (‘high’ state) to dune-less barren barriers (‘barren’ state) using data from a representative set of barrier islands in Virginia, US. We find that these two states are possible stable solutions of a non-linear stochastic dynamics characterized by a tipping point at which barriers with elevation around beach berms experience a critical transition into a permanently barren state. Our results suggest that frequently-flooded dune-less barren islands are a natural endpoint of barrier’s evolution under sea level rise. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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