WorldCat Identities

Gaume, Eric

Overview
Works: 23 works in 36 publications in 2 languages and 334 library holdings
Genres: History  Conference papers and proceedings 
Roles: Other, Author, Thesis advisor, Opponent, Contributor
Classifications: GB661.2, 551.46
Publication Timeline
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Most widely held works by Eric Gaume
Hydrologie quantitative : processus, modèles et aide à la décision by P. A Roche( )

10 editions published in 2012 in French and held by 231 WorldCat member libraries worldwide

L'hydrologie, science du cycle continental de l'eau, est avant tout l'observation d'un milieu naturel complexe. Par une approche quantifiée elle a l'ambition de fournir un ensemble d'outils opérationnels utiles à l'ingénieur et au décideur, pour évaluer les ressources en eau et les risques associés (crue, sécheresse), anticiper grâce à la prévision en temps réel des événements dommageables et gérer au mieux les réserves hydrauliques. Le texte principal est un fil conducteur qui propose une vision intégrée des phénomènes, des modèles et de leurs applications, en mettant l'action sur la compréhension de leurs conditions d'emploi et la confrontation de ces outils aux réalités de terrain. On y insiste en particulier sur des développements récents, comme la nonstationnarité des phénomènes. Il est complété par des annexes sur DVD qui approfondissent les méthodes, les illustrent par des exemples opérationnels présentés par les professionnels qui les ont mis en oeuvre et proposent des outils permettant de s'entraîner et de tester ces méthodes. Ce DVD représente à lui seul l'équivalent d'un second ouvrage de 850 pages ... Introduction méthodique à l'hydrologie quantitative à l'intention des étudiants, cet ouvrage s'adresse également aux professionnels expérimentés qui y trouveront un aperçu des développements scientifiques en cours et une très abondante bibliographie
Hydrologie quantitative processus, modèles et aide à la décision by P. A Roche( Visual )

1 edition published in 2012 in French and held by 58 WorldCat member libraries worldwide

La maison rurale en pays d'habitat dispersé : de l'Antiquité au XXe siècle : actes du colloque de Rennes, 29-30-31 mai 2002 by Dominique Allios( )

1 edition published in 2015 in French and held by 10 WorldCat member libraries worldwide

Cet ouvrage fait le point sur les connaissances relatives à l'habitat rural en pays d'habitat dispersé. L'objectif est de travailler sur un objet concret et fort répandu - la maison rurale - et de le traiter dans la très longue durée, de l'Antiquité à la période contemporaine, à la fois comme un objet d'histoire, d'archéologie et de patrimoine. La maison rurale est celle de l'agriculteur, mais elle est aussi celle du vigneron, de l'instituteur, du bourgeois qui en fait sa résidence secondaire. En région d'habitat dispersé, la maison n'est pas dissociable de son environnement, constitué des bâtiments d'exploitation mais aussi des espaces communs qui sont autant de lieux de sociabilité. Plusieurs études s'attachent ici à répondre à une question difficile : celle du confort offert par les maisons rurales aux différentes époques. La maison rurale antérieure à la modernisation de la seconde moitié du XIXe siècle n'est pas systématiquement la chaumière popularisée par les contes et les folkloristes! Et dès le XVIIe siècle, certaines maisons rurales sont bâties de belles pierres de taille et comportent des escaliers intérieurs. L'espace géographique couvert par cet ouvrage est très vaste : l'ouest de la France (Normandie, Bretagne, Poitou, Touraine, Maine), l'Aquitaine et le Toulousain, la Limagne, le Cantal et les Cévennes, les Pyrénées orientales, la vallée de l'Adour, les Landes de Gascogne ... mais aussi, hors du territoire national, la Galice et les Provinces du Québec ; toutes régions caractérisées aujourd'hui encore par un habitat dispersé. Au total, les études de ce livre portent donc sur des domaines tout à fait neufs de la recherche qui pourront nourrir la réflexion des aménageurs et les spécialistes du tourisme culturel. Ils trouveront dans ces travaux des appuis théoriques et pratiques qui leur permettront de poursuivre une politique de valorisation de ce patrimoine extrêmement riche
Eĺéments d'analyse sur les crues éclair by Eric Gaume( Book )

4 editions published between 2002 and 2003 in French and held by 4 WorldCat member libraries worldwide

Les crues éclair (i.e. crues soudaines provoquées par des événements pluvieux orageux) constituent sans aucun doute le risque naturel le plus destructeur en France. Malgré la menace qu'elles représentent et les nombreuses questions qu'elles suscitent, elles n'ont pas fait l'objet par le passé d'études systématiques.Dans la première partie de ce document, une méthodologie d'analyse hydrologique post-événementielle a été mise au point et testée sur cinq études de cas. Les premiers résultats obtenus sont encourageants et relativement inattendus : a) les bassins versants réagissent avec retard aux épisodes de pluies intenses, b) les volumes d'eau de pluie retenus sur les bassins et ne participant pas à la crue sont importants (de 150 à 200 millimètres dans les études de cas traitées), c) le type d'occupation des sols ne semble pas jouer un rôle déterminant sur la réponse des bassins versants. La seconde partie de la thèse est consacrée à l'analyse théorique des lois de probabilité des débits de pointes de crues. Les possibilités offertes par l'approche qualifiée de semi-déterministe, consistant à coupler un modèle mathématique de genèse aléatoire de séries pluviographiques et un modèle ``pluie-débit'' sont explorées. Il apparaît que, compte tenu des propriétés de la relation pluie-débit, les distributions des débits pointes de crues (DDPC) n'appartiennent probablement à aucun des trois types de lois des valeurs extrêmes. Elles sont asymptotiquement contrôlées par la distribution des intensités moyennes maximales des événements pluvieux, mesurées sur une durée caractéristique du bassin versant
The challenge of forecasting impacts of flash floods: test of a simplified hydraulic approach and validation based on insurance claim data by Guillaume Le Bihan( )

2 editions published in 2017 in English and held by 4 WorldCat member libraries worldwide

Hydrologie quantitative : processus, modèles et applications by Jacques Miquel( Book )

1 edition published in 2011 in French and held by 2 WorldCat member libraries worldwide

Etude de la carbonatation des dispositifs du drainage profond de l'infrastructure ferroviaire by Neng Jia( )

1 edition published in 2018 in French and held by 2 WorldCat member libraries worldwide

This thesis focuses on the clogging phenomenon linked to the precipitation of calcite in high-speed line drainage systems (HSL). Indeed, the clogging of these drains can affect the geometric behavior of the track. Maintaining hydraulic devices in its optimal operating condition is a major challenge for SNCF Réseau. The objective of this research is to determine the processes and causes of calcite formation and its kinetics, by integrating the natural environment (geology) and railway context (anthropogenic materials) as well as the types of drainage devices. The purpose of this research has double industrial goals: preventive and curative. The dysfunction of the devices of the HSL drainage systems, whether along the track or in the tunnel, cause the presence of water in the foundation of the tracks, which can lead to a degradation of their mechanical characteristics, and in the long term induce rail levelling that can lead to impacts on traffic. The clogging of drainage devices by precipitated carbonate deposits is a major cause of reducing the functionality of these devices on the French Railway Networks (RFN): 546.8 km of HSL (Line 1 to 6) are potentially under this impact. In some ways, this impact is essential. For example, it has been estimated that over 78 km (HSL 2) of HSL equipped with draining collector, that the clogging of the devices related to the precipitation of carbonate deposits could represent up to 80% of cases of drainage dysfunction. The curent techniques used are the hydrocuring or the jackhammer for very hardened deposits but both of low profitability in view of the potentially clogged kilometers. In order to propose innovative design or treatment solutions adapted to the different site contexts, the study of the mechanisms involved was the subject of a site monitoring lasting more than two years at a HSL pilot site (Chauconin, 77) instrumented for this purpose allowing the analysis of the physico-chemical parameters of the drained water as well as that of precipitated deposits in their geological, geotechnical and hydrometeorological context. This approach was complemented by the study of 8 other complementary sites selected in full-scale of RFN including tunnels under variant geology as well as covering all existing drainage devices in the railway infrastructure.The hydrogeochemical model developed on this basis offers the possibility of reproducing the processes observed on the Chauconin site: the physical process (Rain-Flow) and the physicochemical process (Transfer-Reaction Model) according to their context in order to quantify predictably the deposits in the drainages devices. This conceptual model is based on an empirical hydrology model of two ground reservoir by coupling the processes of transfer and reaction (dissolution - precipitation). The first analysis of water and surrounding materials on the Chauconin site show that, in the absence of a drained aquifer, this drained water is rich in calcium and sulphates. The detailed analysis of the materials shows that some of the reported materials used in the foundation of the railway platform contain gypsum whose dissolution by infiltration water could explain the composition of the drained water. The waters on the additional sites with a presence of permanent or temporal aquifer are essentially calcium carbonate. These drained waters are consistent with their calcareous or Gypsums geology.The developed conceptual model could be expanded to other railway sites as tunnel. At this stage of our research work, we propose a conceptual decision-making tool with two objectives: diagnosis the calcite precipitation and justification of the choice of typologies of solutions
Integrated high-resolution dataset of high-intensity European and Mediterranean flash floods by William Amponsah( )

1 edition published in 2018 in English and held by 2 WorldCat member libraries worldwide

Prévisions hydrologiques probabilistes dans un cadre multivarié : quels outils pour assurer fiabilité et cohérence spatio-temporelle ? by Joseph Bellier( )

1 edition published in 2018 in French and held by 2 WorldCat member libraries worldwide

This dissertation adresses the production of short-to-medium range hydrological forecasts, in a context involving a number of basins with correlated streamflows. Our case study, based on real data, includes several tributaries of the upper Rhone river in France. Work has been conducted on implementing a forecasting chain that combines ensemble approaches, namely meteorological ensemble forecasting and hydrological multi-model, with statistical correction methods. Ensemble methods are able to dynamically generate an uncertainty that is case-specific, while statistical corrections, which are applied to meteorological (pre-processing) and/or hydrological (post-processing) forecasts, are needed to ensure forecast calibration.Each statistical correction, performed in a univariate framework, induces the loss of the spatial and temporal dependence structure of the forecasts. We were therefore interested in reconstructing such structure, first by making a diagnosic study of existing methods, notably the Schaake shuffle and ECC. Adaptations were proposed in order to address the identified caveats. For pre-processing, we aimed at improving the conditioning of the dependence structure on the meteorological situation. For post-processing, our effort focused on ensuring that streamflow forecasts respect the autocorrélation charateristics and preserve a good calibration, especially during the recession phases, which are problematic. Verification of the so-obtained (meteorological and/or hydrological) forecasts was conducted using univariate and multivariate tools, paying particular attention to the forecast calibration, thanks to the concept of stratification.Finally, we studied the interactions between the different modules of our forecasting chain, by comparing scenarios where only some of the modules were activated. This experiment allowed us to provide guidelines relative to the implementation or the upgrade of an operational probabilistic streamflow forecasting chain
Forecasting of flash-flood human impacts integrating the social vulnerability dynamics by Galateia Terti( )

1 edition published in 2017 in English and held by 2 WorldCat member libraries worldwide

In the 21st century the prediction of and subsequent response to impacts due to sudden onset and localized flash flooding events remain a challenge for forecasters and emergency managers. Structural measures and/or advances in hydrological forecasting systems alone do not guarantee reduction of fatalities during short-fuse flood events. The literature highlights the need for the integration of additional factors related to social and behavioral vulnerability processes to better capture risk of people during flash floods. This dissertation conducts a theoretical analysis as well as an analysis of flash flood-specific historic fatalities to explain complex and dynamic interactions between hydrometeorological, spatial and social processes responsible for the occurrence of human life-threatening situations during the "event" phase of flash floods in the United States (U.S.). Individual-by-individual fatality records are examined in order to develop a classification system of circumstances (i.e., vehicle-related, outside/close to streams, campsite, permanent buildings, and mobile homes). The ultimate goal is to link human vulnerability conceptualizations with realistic forecasts of prominent human losses from flash flood hazards. Random forest, a well-known decision-tree based ensemble machine learning algorithm for classification is adopted to assess the likelihood of fatality occurrence for a given circumstance as a function of representative indicators at the county-level and daily or hourly time steps. Starting from the most prevalent circumstance of fatalities raised from both the literature review and the impact-based analysis, flash flood events with lethal vehicle-related accidents are the subject to predict. The findings confirm that human vulnerability and the subsequent risk to flash flooding, vary dynamically depending on the space-time resonance between that social and hazard dynamics. For example, it is found that younger and middle-aged people are more probable to get trapped from very fast flash floods (e.g., duration close to 5 hours) while participating in daytime outdoor activities (e.g., vehicle-related, recreational). In contrary, older people are more likely to perish from longer flooding inside buildings, and especially in twilight and darkness hours when rescue and/or evacuation operations are hindered. This reasoning places the importance of situational examination of dynamic vulnerability over generic and static conceptualizations, and guides the development of flash flood-specific modeling of vehicle-related human risk in this thesis. Based on the case study of May 2015 flash floods with a focus in Texas and Oklahoma, the model shows promising results in terms of identifying dangerous circumstances in space and time. Though, critical thresholds for the prediction of vehicle-related incidents need to be further investigated integrating local sensitivities, not yet captured by the model. The developed model can be applied on a daily or hourly basis for every U.S. county. We vision this approach as a first effort to provide a prediction system to support emergency preparedness and response to flash flood disasters over the conterminous U.S. It is recommended that the flash flood disaster science community and practitioners conduct data collection with more details for the life-threatening scene, and at finer resolutions to support modeling of local temporal and spatial complexities associated with human losses from flash flooding in the future
Twenty-three unsolved problems in hydrology (UPH): a community perspective by Günter Blöschl( )

1 edition published in 2019 in English and held by 2 WorldCat member libraries worldwide

Hydrologie quantitative processus, modèles et aide à la décision by P. A Roche( )

1 edition published in 2012 in French and held by 2 WorldCat member libraries worldwide

Evènements météo-océaniques extrêmes by Franck Mazas( )

1 edition published in 2017 in English and held by 2 WorldCat member libraries worldwide

This PhD on published works aims at unifying the works carried out on the topic of extreme metocean events since 2009, while working for SOGREAH then ARTELIA.As these works went along, a leading theme progressively appeared: the notion of event, such as a storm. This concept provides a sound and relevant framework in particular in the case of multivariate extremes (such as joint probabilities of waves and sea levels), as well as a better understanding of the notion of return period, much used for design in the field of engineering.The main results of the works carried out in the last decade are as follows:- updating of the methodology for determining extreme wave heights or wind speeds:- development and justification of a two-step framework for extreme univariate over-threshold modelling introducing the concept of event and the separation of the physical and statistical thresholds,- proposal of practical tools for choosing the statistical threshold,- introduction of the parametric bootstrap approach for computing confidence intervals,- identification of a problematic issue in the behaviour of the Maximum Likelihood Estimator and proposal of a solution: use of 3-parameter distributions along with the L-moments estimator,- application of the POT framework to the Joint Probability Method for determining extreme sea levels:- distinction between sequential values and event peaks through extremal indexes for surge and sea level,- construction of a mixture model for the surge distribution,- refinements for handling tide-surge dependence,- application of the POT-JPM framework for the joint analysis of wave height and sea level:- proposal of an alternative sampling procedure,- separate analysis of tide and surge in order to model the dependence between wave height and surge to be incorporated in the joint distribution of wave height and sea level thanks to a 2D1D convolution operation,- use of extreme-value copulas,- improved presentation of the chi-plot,- introduction of a new classification for multivariate analyses:- Type A: a single phenomenon described by different physical quantities that are not of the same kind,- Type B: a phenomenon made of different components, described by physical quantities of the same kind between one component and another,- Type C: several phenomena described by physical quantities that are not of the same kind,- interpretation of the meaning of multivariate events:- link with the sampling procedure,- link with the different definitions of the return period,- in the bivariate case: transformation of the joint distribution of event-describing variables into the joint distribution of sequential pairs,- generation of alternative output plots such as contours of density for sequential pairs;- a dedicated R package, artextreme, for implementing the methodologies presented above
Integrated high-resolution dataset of high intensity Euro-Mediterranean flash floods by William Amponsah( )

1 edition published in 2018 in English and held by 2 WorldCat member libraries worldwide

Modélisation hydrologique distribuée pour la prévision des coupures de routes par inondation : application au département du Gard by Jean-Philippe Naulin( Book )

1 edition published in 2015 in French and held by 1 WorldCat member library worldwide

Avec le développement des mesures de pluie à hautes résolutions spatiale et temporelle, l'utilisation de modèles hydrométéorologiques distribués est désormais envisagée pour anticiper les conséquences locales des événements pluvieux à l'échelle de vastes régions. Cependant, une estimation des conséquences locales à travers une prévision distribuée des débits reste délicate à mettre en œuvre : les incertitudes autour des valeurs de débits peuvent être importantes dans des conditions non jaugées et les conséquences de la crue sont très dépendantes de la configuration du terrain. C'est dans ce contexte que des tests préliminaires ont été conduits par l'Ifsttar afin de développer un système d'alerte capable d'évaluer, en temps réel, un risque de submersion des routes. Initialement testé sur des fenêtres de dimensions limitées, le système à été étendu au département du Gard soit une zone d'étude de 5000 km² comprenant environ 2000 points cibles pour lesquelles des niveaux de risque de coupure sont évalués. L'approche proposée combine un modèle pluie-débit distribué, adapté aux crues éclair, et un modèle d'évaluation de la vulnérabilité des routes. Le système, dont la validation a été effectuée à l'aide d'inventaires de routes submergées, a montré des résultats satisfaisants même si le nombre important de fausses alarmes qu'il génère limite son utilisation à l'échelle locale. Cette application particulière a également été utilisée pour évaluer l'apport des lames d'eau radar pour des applications hydrologiques distribuées. Au final, cette thèse a permis de mettre en avant le potentiel du système à devenir un outil innovant et performant de prévision distribuée des crues
Prévision des crues rapides avec des modèles hydrologiques globaux : application aux bassins opérationnels de la Loire supérieure : évaluation des modélisations, prise en compte des incertitudes sur les précipitations moyennes spatiales et utilisation de prévisions météorologiques by Laetitia Moulin( Book )

1 edition published in 2012 in French and held by 1 WorldCat member library worldwide

The aim of the present work is the evaluation of lumped rainfall-runoff (RR) models for flood forecasting in the case of upper Loire river catchments.Following the description of Loire catchment at Bas-en-Basset, an analysis demonstrates both the worth and the flaws of presently available data sets. The high variability of these hydrometeorological events enables us to compare RR models in particularly difficult but interesting contexts. Simple conceptual models appear more robust and often more efficient than data-driven models. A further evaluation, based on specific criteria for flood forecasting, highlight the information about flood evolution provided by conceptual RR models, even though modelling errors remain altogether significant while the various models behave in a similar way. Estimation of mean areal precipitation is conducted with kriging tools and a model of uncertainty on mean areal precipitation estimation is proposed and validated on data. These uncertainties are then propagated within RR models. Their impact is reasonably different with respect to catchment size, as a variable part of the global modelling error may be explained. Finally, an exploratory work has demonstrated the usefulness of taking into account probabilistic precipitation forecast into a hydrometeorological chain: longer anticipation has consequently been obtained. Although pre-processing linked to these forecast availability is absolutely necessary As a conclusion, simple tools let us expect improvements in this very perfectible field
 
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Alternative Names
E. Gaume Frans onderzoeker

Eric Gaume forsker

Eric Gaume investigador francés

Eric Gaume researcher, ORCID id # 0000-0002-7260-9793

Languages
French (24)

English (8)