Morphologic Change by Overwash: Establishing and Evaluating Predictors
(2007) In Journal of Coastal Research p.520-526- Abstract
- The ability to predict cross-shore profile response to coastal overwash is important for both understanding how
barrier islands respond to overwash and for disaster management on developed coastlines. This study establishes
morphologic and hydrodynamic parameters for predicting the type of cross-shore profile response following
overwash for given pre-storm profile and storm conditions. More than 50 data sets were categorised into 7
different types of cross-shore profile response to overwash. These responses are: 1) crest accumulation 2)
landward translation of dunes/berms 3) dune lowering 4) dune destruction 5) barrier accretion 6) barrier rollover
(short-term),and 7) barrier... (More) - The ability to predict cross-shore profile response to coastal overwash is important for both understanding how
barrier islands respond to overwash and for disaster management on developed coastlines. This study establishes
morphologic and hydrodynamic parameters for predicting the type of cross-shore profile response following
overwash for given pre-storm profile and storm conditions. More than 50 data sets were categorised into 7
different types of cross-shore profile response to overwash. These responses are: 1) crest accumulation 2)
landward translation of dunes/berms 3) dune lowering 4) dune destruction 5) barrier accretion 6) barrier rollover
(short-term),and 7) barrier disintegration. Dimensionless parameters describing the pre-storm morphology and
storm characteristics for these data sets were then plotted in two-dimensional space and trends for the different
response types identified. For some responses it was possible to define criteria for their occurrence and for the others an approximate trend could be identified. Maximum surge level, maximum run-up level, storm
overtopping duration, beach crest height, dune width and dune volume proved some of the most important
parameters to distinguish responses. The criteria that are established and trends identified should allow the user
to qualitatively predict the overwash response of a given cross-shore beach profile to a given set of storm
conditions, using readily available data. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/740036
- author
- Donnelly, Chantal LU
- organization
- publishing date
- 2007
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- hurricane impacts, beach profiles, storm impacts, barrier islands
- in
- Journal of Coastal Research
- issue
- SI 50 (special issue)
- pages
- 520 - 526
- publisher
- Coastal Education and Research Foundation
- external identifiers
-
- scopus:77956865664
- ISSN
- 0749-0208
- language
- English
- LU publication?
- yes
- id
- 3393b4b9-39fd-44cb-963c-1208c52f3698 (old id 740036)
- date added to LUP
- 2016-04-04 09:23:51
- date last changed
- 2022-03-23 05:20:35
@article{3393b4b9-39fd-44cb-963c-1208c52f3698,
abstract = {{The ability to predict cross-shore profile response to coastal overwash is important for both understanding how<br/><br>
barrier islands respond to overwash and for disaster management on developed coastlines. This study establishes<br/><br>
morphologic and hydrodynamic parameters for predicting the type of cross-shore profile response following<br/><br>
overwash for given pre-storm profile and storm conditions. More than 50 data sets were categorised into 7<br/><br>
different types of cross-shore profile response to overwash. These responses are: 1) crest accumulation 2)<br/><br>
landward translation of dunes/berms 3) dune lowering 4) dune destruction 5) barrier accretion 6) barrier rollover<br/><br>
(short-term),and 7) barrier disintegration. Dimensionless parameters describing the pre-storm morphology and<br/><br>
storm characteristics for these data sets were then plotted in two-dimensional space and trends for the different<br/><br>
response types identified. For some responses it was possible to define criteria for their occurrence and for the others an approximate trend could be identified. Maximum surge level, maximum run-up level, storm<br/><br>
overtopping duration, beach crest height, dune width and dune volume proved some of the most important<br/><br>
parameters to distinguish responses. The criteria that are established and trends identified should allow the user<br/><br>
to qualitatively predict the overwash response of a given cross-shore beach profile to a given set of storm<br/><br>
conditions, using readily available data.}},
author = {{Donnelly, Chantal}},
issn = {{0749-0208}},
keywords = {{hurricane impacts; beach profiles; storm impacts; barrier islands}},
language = {{eng}},
number = {{SI 50 (special issue)}},
pages = {{520--526}},
publisher = {{Coastal Education and Research Foundation}},
series = {{Journal of Coastal Research}},
title = {{Morphologic Change by Overwash: Establishing and Evaluating Predictors}},
url = {{https://lup.lub.lu.se/search/files/5313364/740071.pdf}},
year = {{2007}},
}