A study of the wave effects on the current circulation in Galway Bay, using the numerical model COAWST

Calvino, Clément; Dabrowski, Tomasz; Dias, Frédéric

doi:10.1016/j.coastaleng.2022.104251

Cited by 14 publications

(17 citation statements)

References 36 publications

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“…In both cases, it can be pointed out that the increase in wave height occurs at high tide. These results are in agreement with Lewis et al (2019) and Calvino et al (2022), who both showed a significant increase in wave height at high tide at a finer scale. In Calvino et al (2022), this impact seems to be explained mainly by the effect of bottom friction, which is less important at high tide, as the water column is higher.…”

Section: Example Of the Impact On Extreme Events At Two Specific Loca...supporting

confidence: 92%

“…These results are in agreement with Lewis et al (2019) and Calvino et al (2022), who both showed a significant increase in wave height at high tide at a finer scale. In Calvino et al (2022), this impact seems to be explained mainly by the effect of bottom friction, which is less important at high tide, as the water column is higher. In the case of Arns et al (2017), waves are higher when sea level increases (e.g., at high tide) because they break closer to the shore.…”

Section: Example Of the Impact On Extreme Events At Two Specific Loca...supporting

confidence: 92%

“…Several studies have shown that water depth changes can induce changes in the wave field at a fine spatial scale (Hoeke et al, 2015;Arns et al, 2017;Lewis et al, 2019;Idier et al, 2019;Calvino et al, 2022). The aim of this paper was to characterize, at a larger scale, the sensitivity of historical and projected sea states to the sea level changes (tides, storm surges, and mean sea level changes) notably during extreme events.…”

Section: Discussionmentioning

confidence: 99%

“…In intermediate waters, at a greater distance from the coast, larger-scale processes can also be affected by sea level variations, for instance through bottom friction effects. At fine spatial scales, wave statistics have already been shown to be sensitive to sea level rise (Chini et al, 2010;Wandres et al, 2017;Arns et al, 2017) and to tides and surges during extreme-wave events (Alari, 2013;Viitak et al, 2016;Fortunato et al, 2017;Idier et al, 2019;Lewis et al, 2019;Staneva et al, 2021;Calvino et al, 2022). However, large-scale wave models used for historical simulations and projections typically do not account for sea level changes, whether from tides, storm surges, or long-term sea level rise.…”

Section: Introductionmentioning

confidence: 99%

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Impact of sea level changes on future wave conditions along the coasts of western Europe

Chaigneau¹,

Law-Chune²,

Melet³

et al. 2023

Ocean Sci.

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Abstract. Wind waves and swells are major drivers of coastal environment changes and coastal hazards such as coastal flooding and erosion. Wave characteristics are sensitive to changes in water depth in shallow and intermediate waters. However, wave models used for historical simulations and projections typically do not account for sea level changes whether from tides, storm surges, or long-term sea level rise. In this study, the sensitivity of projected changes in wave characteristics to the sea level changes is investigated along the Atlantic European coastline. For this purpose, a global wave model is dynamically downscaled over the northeastern Atlantic for the 1970–2100 period under the SSP5–8.5 climate change scenario. Twin experiments are performed with or without the inclusion of hourly sea level variations from regional 3D ocean simulations in the regional wave model. The largest impact of sea level changes on waves is located on the wide continental shelf where shallow-water dynamics prevail, especially in macro-tidal areas. For instance, in the Bay of Mont-Saint-Michel in France, due to an average tidal range of 10 m, extreme historical wave heights were found to be up to 1 m higher (+30 %) when sea level variations are included. At the end of the 21st century, extreme significant wave heights are larger by up to +40 % (+60 cm), mainly due to the effect of tides and mean sea level rise. The estimates provided in this study only partially represent the processes responsible for the sea-level–wave non-linear interactions due to model limitations in terms of resolution and the processes included.

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Section: Example Of the Impact On Extreme Events At Two Specific Loca...supporting

confidence: 92%

Section: Example Of the Impact On Extreme Events At Two Specific Loca...supporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impact of sea level changes on future wave conditions along the coasts of western Europe

Chaigneau¹,

Law-Chune²,

Melet³

et al. 2023

Ocean Sci.

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“…Changes in M2 amplitude would be spatially heterogenous and might be up to 10% of the MSLR within the next century (e.g., Palmer et al, 2018;Pickering et al, 2017;Schindelegger et al, 2018). Wave-sea level interactions can lead to a substantial increase in significant wave heights and water levels in macro-tidal areas of the north-eastern Atlantic during extreme events (e.g,; (Calvino et al, 2023;Chaigneau et al, 2023;Staneva et al, 2017). 915…”

Section: St Century Projectionsmentioning

confidence: 99%

Sea Level Rise in Europe: Observations and projections

Melet,

van de Wal,

Amores

et al. 2023

Preprint

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Abstract. Sea level rise (SLR) is a major concern for Europe, where 30 million people live in the historical 1-in-100-year event flood coastal plains. The latest IPCC assessment reports provide a literature review on past and projected SLR, and their key findings are synthesized here with a focus on Europe. The present paper complements IPCC reports and contributes to the Knowledge Hub on SLR European Assessment Report. Here, the state of knowledge of observed and 21st century projected SLR and changes in extreme sea levels (ESLs) are documented with more regional information for European basins as scoped with stakeholders. In Europe, satellite altimetry shows that absolute sea level trends are on average slightly above the global mean rate, with only a few areas showing no change or a slight decrease such as central parts of the Mediterranean Sea. The spatial pattern of absolute SLR in European Seas is largely influenced by internal climate modes, especially the North Atlantic Oscillation, which varies on year-to-year to decadal timescales. In terms of relative sea level rise (RSLR), vertical land motions due to human induced subsidence and glacial isostatic adjustment (GIA) are important for many coastal European regions, leading to lower or even negative RSLR in the Baltic Sea, and to large rates of RSLR for subsiding coastlines. Projected 21st century local SLR for Europe is broadly in-line with projections of GMSLR rise in most places. Some European coasts are projected to experience a relative SLR by 2100 below the projected GMSLR, such as the Norwegian coast, the southern Baltic Sea, the northern part of the UK and Ireland. A relative sea level fall is projected for the northern Baltic Sea. RSLR along other EU coasts is projected to be slightly above the GMSLR, for instance the Atlantic coasts of Portugal, Spain, France, Belgium and the Netherlands. Higher-resolution regionalized projections are needed to better resolve dynamic sea level changes especially in semi-enclosed basins, such as the Mediterranean Sea, North Sea, Baltic Sea and Black Sea. In addition to ocean dynamics, GIA and Greenland ice mass loss and associated Earth gravity, rotation and deformation effects are important drivers of spatial variations of projected European RSLR. High-end estimates of SLR in Europe are particularly sensitive to uncertainties arising from the estimates of the Antarctic ice mass loss. Regarding ESLs, the frequency of occurrence of the historical centennial event (HCE) level is projected to be amplified for most EU coasts, except along the northern Baltic Sea coasts where a decreasing probability is projected because of relative sea level fall induced by GIA. The largest HCE amplification factors are projected for the southern European Seas (Mediterranean and Iberian Peninsula coasts), while the smallest amplification factors are projected in macro-tidal regions exposed to storms and induced large surges such as the south-eastern North Sea. Finally, an emphasis is given on processes that are especially important for specific regions, such as waves, tides in the north-eastern Atlantic; vertical land motion for the European Arctic and Baltic Sea; seiches, meteo-tsunamis and medicanes in the Mediterranean Sea; non-linear interactions between drivers of coastal sea level extremes in the shallow North Sea.

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Development of a daily coastal ocean model for Mississippi Sound and Bight

Cambazoglu,

Armstrong,

Wiggert

2024

Ocean Dynamics

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The Mississippi Sound and Bight is a complex coastal system with shallow estuarine waters that are highly vulnerable to the effects of climate change and anthropogenic influences. In order to further our understanding of the system and provide natural resource managers and decision-makers with science-based guidance, a pre-operational coastal ocean forecast system has been developed using the Coupled Ocean Atmosphere Wave Sediment Transport Modeling System (COAWST). The COAWST application for Mississippi Bight (msbCOAWST) can be run in hindcast mode, pre-operational near real-time mode, or forecast mode and relies on other operational models including the National Water Model (NWM) for river forcing, the High Resolution Rapid Refresh model (HRRR) for atmospheric forcing, and the Navy Coastal Ocean Model (NCOM) for open ocean boundary forcing. msbCOAWST is being validated using data from a variety of in situ measurements that quantify coastal processes, including tides and water quality parameters (i.e. temperature and salinity). The highest model skill is obtained for temperature followed by water levels and salinity. msbCOAWST has been used to provide guidance for quantifying how freshwater influences derived from river diversion operations impact water quality in estuarine waters. While the model is initially developed to study water quality and circulation in pre-operational near real-time and forecast modes, it is currently being extended to include waves, sediment transport, and biogeochemistry and also linked with habitat suitability models and ecological models in hindcast mode so as to comprehensively reveal consequential environmental concerns due to the onset and persistence of hypoxia, seasonal and storm-induced waves with their associated impacts on the region’s fisheries and shellfisheries.

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A study of the wave effects on the current circulation in Galway Bay, using the numerical model COAWST

Cited by 14 publications

References 36 publications

Impact of sea level changes on future wave conditions along the coasts of western Europe

Impact of sea level changes on future wave conditions along the coasts of western Europe

Sea Level Rise in Europe: Observations and projections

Development of a daily coastal ocean model for Mississippi Sound and Bight

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