Yann Balouin

Yann Balouin
French Geological Survey | BRGM · BRGM Occitanie

Dr, HDR

About

119
Publications
24,699
Reads
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836
Citations
Citations since 2017
33 Research Items
425 Citations
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2017201820192020202120222023020406080
2017201820192020202120222023020406080
2017201820192020202120222023020406080
Additional affiliations
November 2004 - April 2022
French Geological Survey
Position
  • Senior Coastal Engineer
November 2002 - September 2004
University of Ferrara
Position
  • Marie Curie Post-doctoral fellowship
Description
  • Subtidal sand tracers and coastal dynamics
January 2002 - July 2002
IFREMER
Position
  • junior coastal engineer
Description
  • Research on the impact of marine extractions on coastal erosion

Publications

Publications (119)
Article
Full-text available
River mouths are highly dynamic environments responding very rapidly to changes in wave energy or river floods. While the morphological response during floods or during marine storm events has been widely documented in the literature, little is known about the mechanisms acting during the co-occurrence of fluvial and marine hazards. This concomitan...
Article
Full-text available
At straight sandy coasts, wave-induced processes often lead to intriguing alongshore-variable morphology on spatial scales from 10s - 1000s of meters. Observations have shown that the horns of crescentic bars may separate from the bar during storms and subsequently migrate onshore towards the beach during calmer periods as a spatially coherent stru...
Article
Full-text available
Bouvier, C.; Balouin Y.; Castelle B., and Valentini N., 2020. Video depth inversion at a microtidal site exposed to prevailing low-energy short-period waves and episodic severe storms. In: Malvárez, G. and Navas, F. (eds.), Global Coastal Issues of 2020. Journal of Coastal Research, Special Issue No. 95, pp. 1021–1026. Coconut Creek (Florida), ISSN...
Article
Balouin, Y.; Bourrin, F.; Meslard, F.; Palvadeau, E., and Robin, N., 2020. Assessing the role of storm waves and river discharge on sediment bypassing mechanisms at the Têt river mouth in the Mediterranean (southeast France). In: Malvárez, G. and Navas, F. (eds.), Global Coastal Issues of 2020. Journal of Coastal Research, Special Issue No. 95, pp....
Article
Full-text available
Coastal video monitoring has proven to be a valuable ground-based technique to investigate ocean processes. Presently, there is a growing need for automatic, technically efficient, and inexpensive solutions for image processing. Moreover, beach and coastal water quality problems are becoming significant and need attention. This study employs a meth...
Article
Full-text available
Coastal defense strategies based on structures are increasingly unpopular as they are costly, leave lasting scars on the landscape, and sometimes have limited effectiveness or even adverse impacts. While a clear improvement concerning aesthetic considerations using soft submerged breakwater is undeniable, their design has often focused on wave tran...
Article
Video monitoring the nearshore can provide high-frequency remotely-sensed optical information from which morphological changes and hydrodynamic data can be derived. Although overlooked in most of the studies, it is acknowledged that camera viewing angles can substantially vary in time for a variety of reasons, reducing consistently data accuracy. T...
Conference Paper
Full-text available
La prise en compte de l’aléa de submersion sur les sites soumis conjointement à l’aléa de submersion par débordement et par franchissement de paquets de mer représente un défi important. En effet, si les modèles et les méthodes permettent aujourd’hui de reproduire de manière satisfaisante les phénomènes de submersion marine par débordement, y compr...
Conference Paper
Full-text available
In 2014, 3 detached breakwaters were implemented at the wave-dominated beach of Le Barcarès, S France, to fight against erosion and submersion hazards. Additionally, beach nourishments are undertaken every summer. Daily video images from Oct 2014 to July 2016 covering an alongshore distance of 1.6 km are used to analyse the response of the shorelin...
Article
In early 2013, an 800-m long and 12-m wide submerged breakwater with its crest in 2-m depth was implemented at the wave-dominated barred beach of Sète, SE France, to fight against erosion and submersion hazards. Daily video images from April 2011 to April 2016 covering an alongshore distance of 3.5 km are used to analyse the response of both the sa...
Conference Paper
Full-text available
Accurate topo-bathymetric data and video imagery analysis are combined to investigate the impact of the implementation of a 1-km long submerged breakwater on sandbar and shoreline dynamics at the microtidal wavedominated beach of Sète, SE France. The topo-bathymetric analyses are used to quantify sand volume associated with morphological changes an...
Article
Full-text available
Languedoc-Roussillon, one of the largest sandy bays in Europe, is particularly vulnerable to the risk of marine inundation resulting from climate change. This article assesses the damage, in terms of lost beach surface by 2100, according to different adaptation scenarios: individual (denial, laisser-faire) or planned (strategic retreat). Two contin...
Article
Le Languedoc-Roussillon, une des plus grandes baies sableuses d'Europe, est particulièrement vulnérable au risque de submersion marine lié au changement climatique. Cet article évalue les dommages, en termes de surface de plage perdues, à l'horizon 2100, selon différents scénarios d'adaptation, individuelle (déni, laisser-faire) ou planifiée (recul...
Article
Full-text available
This study, conducted on the city of Hyéres-les-Palmiers (French Riviera) to guide the future land use planning, aimed to evaluate how sea level rise could modify coastal flooding hazards in urban areas located near small estuaries in a microtidal context. A joint probability approach allowed establishing typical storm parameters for specific retur...
Conference Paper
Full-text available
This paper introduces the main results of a large dataset concerning the impacts of storm events and recovery period on a microtidal double barred beach of the NW Mediterranean Sea (Lido de Sète, Gulf of Lions, South France). The objective is to discuss of the key control parameters among both the forcing conditions and the morphological state of t...
Conference Paper
Full-text available
The feedback on soft techniques against erosion is nowadays rare, and does not permit to fully understand why such a system is efficient or not, and thus its applicability to similar environments. The site of the Lido of Sete is currently evaluating these techniques and thus provided an exceptional laboratory to analyze coastal behavior associated...
Conference Paper
Full-text available
Le Projet CRISSIS vise à développer une approche intégrée et opérationnelle du risque de submersion marine sur une commune où se concentrent de forts enjeux urbains et touristiques et où l’aléa de submersion marine, important actuellement, tend à augmenter compte tenu de l’élévation progressive du niveau marin. Le travail présenté consiste en une m...
Article
Full-text available
As sea-level rises, the frequency of coastal marine flooding events is changing. For accurate assessments, several other factors must be considered as well, such as the variability of sea-level rise and storm surge patterns. Here, a global sensitivity analysis is used to provide quantitative insight into the relative importance of contributing unce...
Article
Along Mediterranean coastlines, beach tourism represents one of the main economic resources of coastal regions. In the context of increase of coastal hazards, large management projects are currently undertaken and the evaluation of beach use is an important parameter coastal managers have to take into account in their strategies to reduce risk and...
Article
Along Mediterranean coastlines, beach tourism represents one of the main economic resources of coastal regions. In the context of increase of coastal hazards, large management projects are currently undertaken and the evaluation of beach use is an important parameter coastal managers have to take into account in their strategies to reduce risk and...
Conference Paper
Full-text available
L’adaptation à la montée du niveau de la mer liée au changement climatique suppose de réduire la vulnérabilité du littoral et par là de relocaliser certains enjeux trop exposés. L’hypothèse du projet SOLTER est que ces politiques d’adaptation ne relèvent pas des seules communes littorales et qu’il existe un gradient de solidarité décroissante du li...
Conference Paper
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RESUME Dans un contexte de forte vulnérabilité du littoral face aux tempêtes, les données historiques constituent une information cruciale pour la prévention des risques et dommages. Le Réseau Tempête a objectif de mutualiser et homogénéiser les données d’observation issues des démarches de suivi existantes à l’échelle régionale. Il s’appuie pour c...
Conference Paper
Full-text available
Dans cette étude, les résultats de l’analyse de l’évolution de 44 plages de poche de Haute-Corse sont présentés. Les plages de poche sont des plages de faible étendue, n’excédant généralement pas le kilomètre, abritées en fond de baie. Les comportements observés le plus fréquemment sont ceux entrainant une rotation de la direction prédominante de l...
Article
Full-text available
Pocket beaches are small beaches that are formed between headlands in coves on rocky shorelines. They can be composed of a mix of boulders, pebbles, sand and mud and therefore have the attributes of a combination of shoreline types. Their evolution depends on wave forcing and morphological characteristics, and the most commonly observed dynamics is...
Conference Paper
Cuspate shoreline or megacusps, having alongshore lengths of 100-1000 m, are features widely described, and several theories were proposed for their formation and evolution (edge waves, self-organization). Their dynamics is often related with rip-currents migration, crescentic nearshore bars evolution, even if the relationship between shoreline rhy...
Book
Full-text available
The littoral of Corsica is composed of rocky shorelines which separate sandy beaches in a wide variety of environments: pocket beaches, open beaches, river mouths, lagoon inlets. Due to the erosive trend of the sandy coastline, a coastal monitoring network was implemented at the end of the 90’s to quantify and understand the existing coastal retrea...
Article
Cuspate shoreline or megacusps, having alongshore lengths of 100-1000 m, are features widely described, and several theories were proposed for their formation and evolution (edge waves, self-organization). Their dynamics is often related with rip-currents migration, crescentic nearshore bars evolution, even if the relationship between shoreline rhy...
Article
Full-text available
The French coast of the Gulf of Lion is a low-lying coastal plain. Along this microtidal coastline, where the mean wave climate is moderate, humans have strongly developed infrastructure and urbanized the coastal zone, disregarding the potential impact of extreme events. This results in an increase of coastal vulnerability to extreme storms. Major...
Article
Full-text available
The main objective of the VULSACO (VULnerability of SAndy COasts to climate change and anthropic pressure) project was to investigate present day and potential future vulnerability of sandy coasts at the 2030 horizon, i.e. on a time scale related to climate variability. The method, based on a multidisciplinary approach bringing together geologists,...
Article
Full-text available
The French coast of the Gulf of Lions is a low-lying coastal plain where humans have strongly developed infrastructure and urbanized the coastal zone, disregarding the potential impact of extreme events. This results in an increase of coastal vulnerability to extreme storms with damage to harbor facilities, coastal tourism infrastructures, and urba...
Conference Paper
Evolution de la vulnérabilité du système côtier à la submersion marine dans le contexte du changement global, selon les choix stratégiques d’adaptation. Le milieu littoral sera vraisemblablement soumis à une aggravation des risques côtiers dans le contexte du changement climatique. Sa gestion nécessite d’appréhender ces risques de façon holistiqu...
Conference Paper
Introduction Coastal storms are among the most devastating meteorological hazards, causing important damage, losses of human activities, goods, and lives. Their impact on the coastal zone contributes to the increase of marine risks. The oriental coast of Corsica is particularly exposed to these marine storm events. It is a low coastal plain charact...
Conference Paper
Full-text available
Résumé : Dans le cadre du projet européen MICORE (Morphological Impacts and COastal Risks induced by Extreme storm events), des campagnes de mesures ont été menées pendant 3 hivers successifs sur le Lido de Sète à Marseillan, afin d'analyser les changements morphologiques lors des événements énergétiques. Depuis le mois d'avril 2011, un système vid...
Conference Paper
Full-text available
Résumé : Ces dernières années, les événements hydrométéorologiques extrêmes en zone côtière ont souligné les effets dévastateurs que peuvent entrainer les aléas côtiers maritimes et mis en évidence la nécessité de pouvoir anticiper les phénomènes météo-marins et leurs impacts. Dans ce contexte, l'objectif principal du projet européen MICORE (Morpho...
Conference Paper
Full-text available
Résumé: Dans le cadre du projet européen MICORE (Morphological Impacts and COastal Risks induced by Extreme storm events), une analyse des événements historiques de tempêtes ayant affecté les littoraux européens a été réalisée. Elle concerne 12 régions littorales réparties dans 9 pays d'Europe. Les caractéristiques physiques des tempêtes marines (h...
Conference Paper
Cet article rend compte de la vulnérabilité des plages du Languedoc-Roussillon au risque de submersion marine liée au changement climatique. Il présente en premier lieu quelques résultats des enquêtes de perceptions menées auprès d’un échantillon de résidents locaux, de résidents secondaires, de touristes et d’excursionnistes, soit un total de 881...
Article
Full-text available
The coastal system is likely to suffer increasing costal risk in a global change context. Its management implies to consider those risks in a holistic approach of the different vulnerability components of the coastal zone, by improving knowledge of hazard and exposure as well as analyzing and quantifying present day and future territory vulnerabili...
Article
Along the coast, anticipating the different morphological responses induced by storm events is crucial for man-agers to evaluate coastal risks and to develop the best measures to mitigate them. In this paper, a methodology is developed to determine the best storm intensity parameter to derive storm thresholds for different morpholog-ical responses....