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LEONE Frédéric

LEONE Frédéric
Paul Valéry University, Montpellier 3 & LAGAM Laboratory

Professor in Geography of Geodisasters Risk Management and Mapping

About

175
Publications
90,598
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1,244
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Introduction
Prof. Frédéric LEONE, Geographer in Geodisasters and Risk Management & Mapping, currently works at the Paul Valéry University Montpellier 3. Frédéric Leone is the head of LAGAM laboratory (Laboratoire de Géographie et d'Aménagement de Montpellier)

Publications

Publications (175)
Conference Paper
Full-text available
Compte tenu de l’importante vulnérabilité des petites îles des Antilles face aux aléas cycloniques, la modélisation numérique aux très fines échelles (entre 300 m et 10 m de résolution) est essentielle pour prévenir et mieux gérer les impacts induits par les vents cycloniques. L’étude numérique novatrice présentée ici a pour objectif de combiner à...
Article
The mapping of the damage caused by natural disasters is a crucial step in deciding on the actions to take at the international, national, and local levels. The large variety of representations that we have observed leads to problems of transfer and variations in analysis. In this article, we propose a representation, Regular Dot map (RD), and we c...
Article
Full-text available
En contexte post-catastrophe les moyens aériens représentent une solution efficace pour agir avec rapidité dans un environnement dévasté. Parmi ces moyens, la flexibilité, l'atout économique et les possibilités que peuvent offrir les aéronefs télépilotés, aussi appelés drones, notamment en termes de reconstitutions 3D et de cartographie, en font un...
Article
Full-text available
The objective of our study is to establish an assessment of four volcanic hazards in a country threatened by the eruption of the OlDoinyo Lengai volcano. The last major eruption dates back to 2007-2008 but stronger activity in 2019 has revived the memory of volcanic threats to the Maasai and Bantu communities and human activities (agro-pastoral and...
Article
Cet article explore les relations entre les caractéristiques territoriales et les capacités de relèvement d’une petite île caribéenne, confrontée à un événement cyclonique exceptionnel : Saint-Barthélemy face à IRMA (sept. 2017). L’analyse repose sur l’acquisition de données récoltées in situ dans le cadre d’un retour d’expérience (RETEX) scientifi...
Book
Full-text available
Depuis une dizaine d'années, le concept de résilience a percolé en géographie des risques. Il est considéré comme un apport majeur qui permet le renouvellement des approches de la gestion des risques. Cependant, ses contours sont encore en voie de stabilisation. Par ailleurs, le concept peine à s'imposer dans la sphère des gestionnaires du risque e...
Article
Full-text available
This paper investigates the resilience of traditional societies from Small Island Developing States in the face of disaster. It focuses on tropical cyclone Pam that impacted Vanuatu in 2015. Drawing upon focus group discussions using participatory tools in disaster-affected villages between 2015 and 2017, it examines both the recovery challenges fa...
Book
Full-text available
Le projet TIREX (Transfert des apprentissages de retours d'expérience scientifiques), dirigé par Pr. Frédéric LEONE, part du constat que les résultats des retours d'expérience scientifiques ne sont pas assez communiqués aux acteurs des territoires concernés. En analysant la saison cyclonique 2017 dans les Petites Antilles, TIREX répond à la fois à...
Article
Full-text available
In view of the high vulnerability of the small islands of the Lesser Antilles to cyclonic hazards, realistic very fine scale numerical simulation of hurricane-induced winds is essential to prevent and manage risks. The present innovative modeling aims at combining the most realistically simulated strongest gusts driven by tornado-scale vortices wit...
Technical Report
Full-text available
EXPLOItation et Transfert vers les collectivités des Antilles françaises d'une méthode de planification des évacuations en cas d'alerte tsunami (EXPLOIT) https://exploit.univ-montp3.fr/ Résumé final du projet UMR GRED janvier 2019 Les Petites Antilles françaises sont des territoires exposés au risque « tsunami » avec au moins 180 000 personnes loca...
Preprint
Full-text available
In view of the high vulnerability of the Lesser Antilles small islands to cyclonic hazards, realistic very fine scale numerical simulation of hurricane-induced winds is essential to prevent and manage risks. The present innovative modeling aims at combining the most realistic simulated strongest gusts driven by tornado-scale vortices within the eye...
Presentation
Full-text available
Contribution au Hors Série du magazine Marianne, juillet 2020
Article
Full-text available
This paper lays the methodological basis for a historical catalogue of significant and deadly hydro-meteorological events that have occurred in the Guadeloupe archipelago and the northern islands since 1635. For the recent period, post 1950, it is supplemented by a Geographical Information System used to locate and inform each victim with his profi...
Article
Full-text available
This study deals with the coastal changes, flooding and damage after the passage of a category 5 hurricane (Irma) on 6 September 2017 over the islands of Saint-Martin and Saint-Barthélemy in the Lesser Antilles. Two field work were made 2 and 8 months after the catastrophe over the two islands. It made it possible to analyze the impacts of Hurrican...
Article
Full-text available
In the aftermath of a disaster, the debris caused by the destruction of property or vegetation become a crucial problem. The increase in the volume of debris, the growing requirements for environmental protection, the cost of waste collection and treatment for local authorities or companies are increasingly complex challenges for lands subject to n...
Article
Full-text available
L’augmentation du volume des débris, les impératifs de protection de l’environnement, le coût de la collecte et du traitement pour les collectivités territoriales ou les entreprises sont des défis de plus en plus complexes dans les territoires soumis à des catastrophes naturelles, technologiques ou géopolitiques (conflits) destructrices. Le passage...
Article
Full-text available
In the aftermath of a disaster, the debris caused by the destruction of property or vegetation become a crucial problem. The increase in the volume of debris, the growing requirements for environmental protection, the cost of waste collection and treatment for local authorities or companies are increasingly complex challenges for lands subject to n...
Presentation
La compréhension des éruptions futures et de leurs conséquences potentielles est un élément important de la réduction des risques de catastrophes volcaniques. Les scénarios constituent un compromis utile entre les approches probabilistes et déterministes. L'objectif de notre étude est d’établir un diagnostic des risques volcaniques en Tanzanie, pay...
Article
Full-text available
This article provides a spatial and comparative approach to evaluate the territorial accessibility in the event of a volcanic crisis in the French West Indies. A spatial assessment of resources and populations exposed to volcanic hazards is performed, followed by an assessment of the risk of territorial isolation due to lahars. Modelling of the ris...
Article
Full-text available
The High Atlas of Morocco is a semi-arid mountainous environment that frequently suffers from natural hazards. For example, the watersheds upstream of Marrakech city are subject to extreme floods, caused by heavy rains. These episodes are frequent and often devastating, as was the August 1995 event that caused hundreds of deaths in the Ourika Valle...
Poster
Full-text available
EXPLOItation et Transfert vers les collectivités des Antilles françaises d’une méthode de planification des évacuations en cas d’alerte tsunami (EXPLOIT)
Data
Version complète de l'Atlas en .pdf
Article
Full-text available
This study aims to better understand coastal processes associated with extreme cyclonic events through the study of the coastal changes, flooding and damage that resulted from the passage of a category 5 hurricane (Irma) on 6 September 2017 over the islands of Saint-Martin and Saint-Barthélemy in the Lesser Antilles. Hurricane Irma was contextualiz...
Article
Full-text available
Purpose The purpose of this paper is to identify vulnerable areas for flood hazard and to analyze stakes exposed in touristic valley of Morrocan mountains. The three goals are: methodological (low-cost diagnosis without starting data), operational (to show the risk and identify avenues of prevention in Ourika) and incentive (to reproduce this on ot...
Article
This study assesses the coastal flooding risk of Kenitra coast (Morrocan Atlantic) consisting of rectilinear beaches backed by dunes and crossed by the mouth of Sebou river. A Differential Global Positioning System (DGPS) topographic survey of the study area was carried out in order to analyse shore and backshore morphology. Total water levels (TWL...
Article
Full-text available
In the aftermath of a disaster, the debris caused by the destruction of property or the vegetation become a crucial problem. The increase in the volume of debris, the growing requirements for environmental protection and the cost of waste collection and treatment for local authorities or companies are challenges increasingly complex for the territo...
Presentation
Full-text available
L’université de Montpellier III, déjà en pointe dans les Retex postcatnat, vient de s’adjoindre des compétences scientifiques supplémentaires. Les équipes se sont fédérées autour d’une équipe, la GRT, qui adopte une approche terrain intégrée et pluridisciplinaire avec pour objectif le transfert des apprentissages aux autorités et populations concer...
Presentation
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Edito IGN Mag
Article
Full-text available
Category 5 tropical cyclone Pam hit Vanuatu in March 2015, affecting thousands of people. Three months after the event, this study compared the responses from both external aid agencies and the disaster-affected communities to identify convergences, duplications and gaps. The research relies on 13 interviews with aid agencies and eight focus group...
Chapter
Full-text available
Le 4 juin 2012, une lave torrentielle située sur le torrent du Rif Blanc a provoqué la coupure de la principale liaison économique et touristique du département des Hautes-Alpes, axe permettant de rejoindre les villes de Grenoble et Briançon. Outre la paralysie du réseau routier, les perturbations se sont prolongées durant plusieurs jours dans l’en...
Article
Full-text available
Preventing people exposed to natural hazards is a fundamental lever to reduce their vulnerability and the associated risk. In this context, evacuation maps can be considered as a useful tool to educate populations in order to get an appropriate behavior in case of disaster, and to maintain a culture of the risk in exposed areas. Since the catastrop...
Article
An extremely destructive category 5 cyclone (Saffir-Simpson), Tropical Cyclone Pam, struck Vanuatu on the evening of 13 March 2015, causing serious damage to infrastructure across the capital Port‑Vila. We studied the coastal change, flash flood and damages effects three months after super cyclone. A flash flood affected one slumurb in Port‑Vila. W...
Article
An extremely destructive category 5 cyclone (Saffir-Simpson), Tropical Cyclone Pam, struck Vanuatu on the evening of 13 March 2015, causing serious damage to infrastructure across the capital Port‑Vila. We studied the coastal change, flash flood and damages effects three months after super cyclone. A flash flood affected one slumurb in Port‑Vila. W...
Article
Full-text available
Dans la nuit du 13 mars 2015, un cyclone destructeur de catégorie 5 a provoqué de sérieux dommages sur l’île capitale du Vanuatu. Trois mois après la catastrophe, le retour d’expérience (RETEX) s’est concentré sur les impacts physiques et les dommages entrainés par les houles cycloniques et les crues éclairs. L’analyse de l’inondation d’un quartier...
Article
Full-text available
Purpose The purpose of this paper is to develop a multidimensional approach for effectively managing natural disasters; this paper has three research objectives. First, it provides an analysis on the hydro-geomorphological effects of the cyclone in the urban context. Second, it proposes an analysis for the vulnerability and resilience recovery of t...
Article
Full-text available
Contributions of Geographical Sciences to Tsunami Risk Prevention in Morocco By focusing on Morocco, this article shows how the geographical sciences can contribute to improving the knowledge of tsunami risk and its prevention following an integrated and spatial approach based on the concept of scenario. The main results presented here come from t...
Article
Padang is known to be one of the most exposed cities in Indonesia to the threat of tsunamis. Some available models show that the urban area in the coastal zone would be inundated by a potential tsunami. Considering this threat, our objective is to estimate which areas of the city are the most endangered in order to plan an evacuation that is adapte...
Article
An extremely destructive category 5 cyclone (Saffir-Simpson), Tropical Cyclone Pam, struck Vanuatu on the evening of 13 March 2015, causing serious damage to infrastructure across the capital Port-Vila. We studied the coastal change, flash flood and damages effects three months after super cyclone. A flash flood affected one slumurb in Port-Vila. W...
Research
Full-text available
Ce mémoire présente à la fois un état des lieux de la recherche scientifique sur le sujet, en réponse à une certaine demande sociale, une synthèse de notre propre activité, et un positionnement scientifique dans le champ de la géographie des risques. Il est alimenté par des réflexions théoriques et méthodologiques plus ou moins abouties, mais illus...
Article
The Alps are highly impacted by debris flows that cause major problems for companies and transport networks located in the valley bottoms. One such event occurred in the Rif Blanc catchment and affected the road network in the French Alps, as well as adjacent areas across the Italian border, for several days in June 2012. This article presents two...
Technical Report
Full-text available
This report focuses on large scale accessibility mapping and evacuation simulations of the ASTARTE test sites. It presents the main results achieved in the Task 9.4 of the WP9. The aim of this task is to provide operatives with scenario-based tools and solutions to develop evacuation plans for local communities. The hazard scenarios were based on t...
Article
Full-text available
L’article propose un bilan des opportunites et des obstacles souleves par l’adaptation des bâtiments au risque inondation. Cette question est devenue centrale dans les programmes de reduction du risque inondation. A partir d’une etude bibliographique et en s’appuyant sur une enquete approfondie sur la ville de Quimper, les auteurs mettent en relief...
Book
Full-text available
Longtemps considéré comme la prérogative de l’État et des services spécialisés, la gestion de crise s’est élargie depuis une vingtaine d’années. La notion s’est étendue à la sauvegarde qui ne se substitue pas au secours mais le complète ou l’anticipe. En France, l’État lui-même a pris conscience de ses limites et de la nécessité de partager la gest...
Book
Full-text available
Cet atlas universitaire répond à un besoin de compréhension, de spatialisation et de contextualisation des risques naturels à Mayotte. Il introduit un éventail d’approches et de cartographies pour expliquer les risques perçus et vécus, leurs conséquences et leurs déterminants physiques, socio-culturels, historiques ou géographiques. Plusieurs nivea...
Article
Full-text available
The risk of tsunami threatens the whole Caribbean coastline and especially the Lesser Antilles. The available models of tsunami propagation estimate that the travel time from the closest seismic sources would only take a few minutes to impact the Martinique Island. Considering this high threat, the most effective measure is a planned and organized...
Article
Full-text available
L’accessibilite routiere revet un caractere particulierement strategique pour le maintien des activites economiques, mais egalement pour les interventions de secours. En montagne, les avalanches representent une menace particulierement forte car, outre les victimes et dommages directs qu’elles peuvent causer, elles entrainent tres souvent une perte...
Article
Full-text available
Road accessibility is highly strategic for the maintenance of economic activities but also for the emergency services. In mountains, snow avalanches are a particularly strong threat because, in addition to the victims and direct damage, they cause a loss of accessibility more or less prolonged when the networks are already strongly altered by seaso...
Article
Full-text available
The risk of tsunami threatens the whole Caribbean coastline especially the Lesser Antilles. The first available models of tsunami propagation estimate that the travel time from the closest seismic sources would only take few minutes to impact the Martinique Island. Considering this threat, the most effective measure is a planned and organized evacu...
Article
Full-text available
Territorial Accessibility Modeling Serving Tsunami Crisis Management (Mayotte, France) Mayotte, a French territory located in the southeastern Indian Ocean is particularly exposed to natural hazards. Since 2010, the PREPARTOI Program has focused on assessing the tsunami risk in this region and developed original methods to do so. The aim of this ar...
Article
Full-text available
This paper seeks to investigate the effectiveness of sea-defense structures in preventing/reducing the tsunami overtopping as well as evaluating the resulting tsunami impact at El Jadida, Morocco. Different tsunami wave conditions are generated by considering various earthquake scenarios of magnitudes ranging from Mw = 8.0 to Mw = 8.6. These scenar...
Article
Full-text available
Small amplitude tsunamis have impacted the French Mediterranean shore (French Riviera) in the past centuries. Some caused casualties; others only generated economic losses. While the North Atlantic and Mediterranean tsunami warning system is being tested and is almost operational, no awareness and preparedness measure is being implemented at a loca...