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Geosciences
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Advanced Research in Coastal Morphodynamics
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Advanced Research in Coastal Morphodynamics

A special issue of Geosciences (ISSN 2076-3263).

Deadline for manuscript submissions: closed (29 February 2024) | Viewed by 5159

Special Issue Editors

Dr. Jun Cheng

E-Mail Website1 Website2
Guest Editor
School of Environmental and Sustainability Science, Kean University, Union Township, NJ, USA
Interests: coastal sedimentary processes; nearshroe sediment transport; coastal engineering and management; field-based coastal geology
Dr. Felix Jose

E-Mail Website
Guest Editor
Department of Marine & Earth Sciences, Florida Gulf Coast University, Fort Myers, FL 33965, USA
Interests: coastal morphodynamics; sediment transport modeling; wave and storm surge modeling; coastal resileance; climate adaptation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Coastal geomorphologies have been subjected to more intensive interruptions due to global climate change and human activities. Within the past decade, significant advancements have been made in collecting field data thanks to highly versatile and coast-effective observational equipment and collection methodologies. Recent advances in numerical modelling of beach and barrier island morphodynamics have improved our understanding on the geomorphologic evolution of coasts in response to high energy storms and climate change. Neverthless, considerable differences in temporal and spatial scales for field-based studies and numerical models still remain a challenge for understanding and quantifying long-term coastal processes. In order to provide a suitable forum to bridge the gaps in different scales, this Special Issue is devoted to collecting project-scale (10s of kilometers) coastal morphodynamic studies from field observations and/or numerical modelling. Large-scale laboratory experiments with direct links to project-scale coastal morphodynamics issues are also welcomed. We are particularly interested in studies that address the impact of hurricane/tropical storms and climate change on the geomorphologic evolution of beaches and barrier islands.

Dr. Jun Cheng
Dr. Felix Jose
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Geosciences is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1800 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nearshore sediment transport
  • coastal geomorphology
  • coastal sediment dynamics
  • large-scale numerical modelling
  • field/laboratory measurements
  • coastal resilience
  • climate adaptation.

Published Papers (2 papers)

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Research

23 pages, 6025 KiB  
Article
Should Anthropic Ridges Framed as Foredunes Be Considered Real Dunes?
by Alexandre Medeiros de Carvalho, Vanda Claudino-Sales, Sergio Bezerra Lima Junior, Leticia Mesquita Eduardo, Francisco Gleidson da Costa Gastão and Lidriana de Souza Pinheiro
Geosciences 2022, 12(10), 364; https://0-doi-org.brum.beds.ac.uk/10.3390/geosciences12100364 - 30 Sep 2022
Viewed by 1935
Abstract
Aeolian features framed as foredunes worldwide, whose classification faces challenges to separate wave-formed from aeolian ridges, are relevant to the context of anthropic control. An example of this kind of morphology, previously classified as foredunes, is arranged along Brazil’s northeastern coast, and the [...] Read more.
Aeolian features framed as foredunes worldwide, whose classification faces challenges to separate wave-formed from aeolian ridges, are relevant to the context of anthropic control. An example of this kind of morphology, previously classified as foredunes, is arranged along Brazil’s northeastern coast, and the pertinence of its classification as such or even as truly developed dunes was examined. To contribute to the debate on this issue, detailed geomorphological mapping was carried out through UAV and LIDAR surveys, in addition to the multitemporal study of satellite images and aerial photographs. Ground penetration radar sections, trenches, and particle size analysis were also conducted. Although the obliquity of wind direction to the coastline, this study’s main bedform of focus shows coast-parallel positioning conditioned by the exogenous vegetation previously inserted about 70 m from the high tide line. This morphology showed practically no migration for over 15 years; however, the wind breaks through the vegetation barrier and develops depositional lobes and V-shaped low crests protruding into the mainland. GPR sections reveal cross-strata sets with a high dip angle in only two aeolian sequences, one preceding exogenous vegetation introduction and the other in a contemporary layer, amidst the dominance of horizontal to sub-horizontal strata. The sediments are characteristically aeolian, with cross-strata and morphology resembling incipient protodunes and a few stretches at the lee slope highlighting characteristics of retention or precipitation dunes. There was little similarity to the foredunes compared to the other occurrences along the equatorial northeast coast; there was also an inconsistency in the correlation between the cross-strata and the morphological stage. In addition, the disconnection between the aeolian dynamics and morphogenetic process also differentiates it from regional foredunes. This morphology, therefore, presents aspects that are not characteristic of the classification of foredunes or the naturally formed dunes in the region and thus demands a classification to emphasize the anthropogenic character. Full article
(This article belongs to the Special Issue Advanced Research in Coastal Morphodynamics)
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17 pages, 3091 KiB  
Article
Foredune and Beach Dynamics on the Southern Shores of Lake Michigan during Recent High Water Levels
by Zoran Kilibarda and Vesna Kilibarda
Geosciences 2022, 12(4), 151; https://0-doi-org.brum.beds.ac.uk/10.3390/geosciences12040151 - 28 Mar 2022
Cited by 1 | Viewed by 2334
Abstract
From 18 January 2013 (175.16 m a.s.l.) to 8 September 2020 (177.82 m a.s.l.), Lake Michigan experienced its fastest and highest rise (2.67 m) since 1860, when instrumental measurements began. Extensive foredunes developed since the last high lake levels began eroding in 1997 [...] Read more.
From 18 January 2013 (175.16 m a.s.l.) to 8 September 2020 (177.82 m a.s.l.), Lake Michigan experienced its fastest and highest rise (2.67 m) since 1860, when instrumental measurements began. Extensive foredunes developed since the last high lake levels began eroding in 1997 at fast rates. This study focuses on coastal morphodynamics along the 800 m coast within the central Indiana Dunes State Park on Lake Michigan’s southern shores during this time. Severe foredune erosion, in terms of total horizontal dune loss and total volume of eroded sand, occurred unevenly over the three-year period, both temporally, during a single storm, a season, a year, or three years, and spatially, in the eastern, central, and western study areas. Late autumn storms accounted for most foredune erosion in 2018 and 2019, when foredune scarps retreated up to 4 and 9 m, respectively. Erosion was highest in the updrift eastern study area, where about 8 m3/m of sand was removed in 2018 and about 19 m3/m of sand was removed in 2019. The lack of shelf ice along the shore, rising lake levels, and convective storms that triggered meteotsunamis changed the foredune erosion pattern in 2020. Erosion became most vigorous in the downdrift central (13 m scarp retreat) and western (11 m scarp retreat) study areas. The average volume of eroded sand (21.5 m3/m) was more than double that of 2019 (8 m3/m), and almost quadruple the 2018 volume (5.5 m3/m). After foredune erosion events, the beach rapidly recovered and maintained its width as the shoreline migrated landward. On many occasions following these severe erosion events the dry portion of the beach aggraded and absorbed significant sand amounts removed from the foredunes. The remaining sand was transferred to the surf zone, where it changed the sand bar morphology and led to their coalescence and flattening. Full article
(This article belongs to the Special Issue Advanced Research in Coastal Morphodynamics)
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