Boulder Ridges and Washover Features in Galway Bay, Western Ireland

Erdmann, Wibke; Kelletat, Dieter; Kuckuck, Miriam

doi:10.2112/jcoastres-d-16-00184.1

Cited by 16 publications

(5 citation statements)

References 58 publications

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“…The information from this locality fills an important gap in the knowledge of the geographical distribution of coastal megaclast deposits along the Atlantic coast of Europe. These deposits were reported previously from the British Isles [21,[27][28][29][30][31][32][33][34][35][45][46][47][48][49][50][51], northern France (first of all, Brittany) [52][53][54][55][56], and the western and southwestern coasts of the Iberian Peninsula [57][58][59][60][61]. The Hondarribia locality represents the other domain, i.e., the Biscay Bay, the coasts of which are prone to severe storms creating and transporting megaclasts, similarly to the above-mentioned regions [62].…”

Section: Example 1: Hondarribia (Spain; Biscay Bay)supporting

confidence: 54%

“…Irrespective of which of these aspects and particular opinions to follow, finding new localities coastal megaclast deposits is of utmost importance. The knowledge from the 'classical' localities like those studied in the Bahamas [6,7] and western Ireland [29][30][31][32][33][34][35] need extension and refinement with the information from many other localities of the world. Although megaclast studies are urgent and relatively cheap, the circle of the involved researchers remains too restricted to expect documentation of even a triple of all megaclast localities.…”

Section: Introductionmentioning

confidence: 99%

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Finding Coastal Megaclast Deposits: A Virtual Perspective

Ruban

2020

JMSE

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Coastal megaclast deposits are dominated by detrital particles larger than 1 m in size. These attract significant attention of modern researchers because of the needs of sedimentary rock nomenclature development and interpretation of storm and tsunami signatures on seashores. If so, finding localities that exhibit coastal megaclast deposits is an important task. Field studies do not offer a quick solution, and, thus, remote sensing tools have to be addressed. The application of the Google Earth Engine has permitted to find four new localities, namely Hondarribia in northern Spain (Biscay Bay), the Ponza Island in Italy (Tyrrhenian Sea), the Wetar Island in eastern Indonesia (Banda Sea), and the Humboldt o Coredo Bay at the Colombia/Panama border (eastern Pacific). In these localities, coastal megaclast deposits consisting of blocks (1–10 m in size) and some megablocks (>10 m in size) are delineated and preliminary described in regard to the dominant size of particles, package density, mode of occurrence, etc. The limitations of such virtual surveys of coastal megaclast deposits are linked to an insufficiently high resolution of satellite images, as well as ‘masking’ effects of vegetation cover and cliff shadows. However, these limitations do not diminish the importance of the Google Earth Engine for finding these deposits. Consideration of some tourism-related information, including photos captured by tourists and bouldering catalogues, facilitates search for promising areas for subsequent virtual surveying of megaclast distribution. It is also established that the Google Earth Engine permits quantitative analysis of composition of coastal megaclast deposits in some areas, as well as to register decade-long dynamics or stability of these deposits, which is important to interpret their origin. The current opportunities for automatic detection of coastal megaclast deposits seem to be restricted.

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Section: Example 1: Hondarribia (Spain; Biscay Bay)supporting

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Finding Coastal Megaclast Deposits: A Virtual Perspective

Ruban

2020

JMSE

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“…Strong coastal storms particularly affect the western/northwestern coasts of Ireland (Cooper et al, 2004;Backstrom et al, 2015). Historically, both its hard coasts (Scheffers et al, 2009(Scheffers et al, , 2010Erdmann et al, 2017) and sandy coasts (Cooper et al, 2004;Kandrot et al, 2016) are influenced by remnants of Atlantic Hurricanes reaching Ireland. Events such as the 1839 'Night of the big wind' (Shields and Fitzgerald, 1989) a Category 3 Hurricane and 1961's Hurricane Debbie (Hickey and Connolly-Johnston, 2012), demonstrate the potential impacts of receiving these events.…”

Section: Introductionmentioning

confidence: 99%

Coastal Impact From High-Energy Events and the Importance of Concurrent Forcing Parameters: The Cases of Storm Ophelia (2017) and Storm Hector (2018) in NW Ireland

Guisado‐Pintado

Jackson

2019

Front. Earth Sci.

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“…The Northern and Western coasts of Ireland are classified as high-energy coastlines and are often affected by energetic storms and the tail-end of a small number of Atlantic Hurricanes [32,33,[55][56][57]. The effects of some of these events have been described by different authors [32,[55][56][57][58][59][60], but the specific impacts of a recent post-tropical cyclone on Northern Irish beaches have not been investigated so far.…”

Section: Discussionmentioning

confidence: 99%

Spatial Variability of Beach Impact from Post-Tropical Cyclone Katia (2011) on Northern Ireland’s North Coast

Anfuso

Loureiro

Taaouati

et al. 2020

Water

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In northern Europe, beach erosion, coastal flooding and associated damages to engineering structures are linked to mid-latitude storms that form through cyclogenesis and post-tropical cyclones, when a tropical cyclone moves north from its tropical origin. The present work analyses the hydrodynamic forcing and morphological changes observed at three beaches in the north coast of Northern Ireland (Magilligan, Portrush West’s southern and northern sectors, and Whiterocks), prior to, during, and immediately after post-tropical cyclone Katia. Katia was the second major hurricane of the active 2011 Atlantic hurricane season and impacted the British Isles on the 12–13 September 2011. During the Katia event, offshore wave buoys recorded values in excess of 5 m at the peak of the storm on the 13 September, but nearshore significant wave height ranged from 1 to 3 m, reflecting relevant wave energy dissipation across an extensive and shallow continental shelf. This was especially so at Magilligan, where widespread refraction and attenuation led to reduced shore-normal energy fluxes and very minor morphological changes. Morphological changes were restricted to upper beach erosion and flattening of the foreshore. Longshore transport was evident at Portrush West, with the northern sector experiencing erosion while the southern sector accreted, inducing a short-term rotational response in this embayment. In Whiterocks, berm erosion contributed to a general beach flattening and this resulted in an overall accretion due to sediment influx from the updrift western areas. Taking into account that the post-tropical cyclone Katia produced £100 m ($157 million, 2011 USD) in damage in the United Kingdom alone, the results of the present study represent a contribution to the general database of post-tropical storm response on Northern European coastlines, informing coastal response prediction and damage mitigation.

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Boulder Ridges and Washover Features in Galway Bay, Western Ireland

Cited by 16 publications

References 58 publications

Finding Coastal Megaclast Deposits: A Virtual Perspective

Finding Coastal Megaclast Deposits: A Virtual Perspective

Coastal Impact From High-Energy Events and the Importance of Concurrent Forcing Parameters: The Cases of Storm Ophelia (2017) and Storm Hector (2018) in NW Ireland

Spatial Variability of Beach Impact from Post-Tropical Cyclone Katia (2011) on Northern Ireland’s North Coast

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