WorldCat Identities

Dubreuil, Vincent

Works: 39 works in 77 publications in 3 languages and 289 library holdings
Genres: Case studies  Conference papers and proceedings  Academic theses 
Roles: Thesis advisor, Other, Editor, Author, Opponent, dgs
Classifications: QC903.2.F8, 551.6
Publication Timeline
Most widely held works by Vincent Dubreuil
Le Climat, l'eau et les hommes : ouvrage en l'honneur de Jean Mounier( Book )

7 editions published in 1997 in French and held by 91 WorldCat member libraries worldwide

Recherches en climatologie rassemblées autour de deux axes : place du climat et de l'eau dans nos sociétés actuelles et apport de la télédétection dans la problématique ; aspects régionaux des interactions entre hydrosphère et mécanismes climatiques
Changement climatique dans l'Ouest évaluation, impacts, perceptions by Philippe Mérot( Book )

2 editions published between 2012 and 2013 in French and held by 58 WorldCat member libraries worldwide

Environnement et télédétection au Brésil : Mato Grosso, Paraná, Sao Paulo( Book )

5 editions published in 2002 in French and held by 52 WorldCat member libraries worldwide

Les types de temps : actes des "Journées de climatologie" de la Commission "Climat et société" du Comité national français de géographie by Francia) Comité National Français de Géographie (Paris( Book )

5 editions published in 2004 in French and held by 16 WorldCat member libraries worldwide

Croissance urbaine et risque inondation en Bretagne by Janique Valy( Book )

4 editions published between 2010 and 2011 in French and held by 7 WorldCat member libraries worldwide

The end of the XX° century is characterised by an increase of the long standing phenomena consisting of settling down and building sites on plains liable to inundation. Flooded french plains do not except this evolution, in spite of the establishment of administrative regulations. For the last twenty years, Brittany has experienced several hydroclimatic events which have impacted numerous urban areas, especially Rennes outlying urban districts as well as the Vilaine catchment and coastal fringe urban centres. These successive hydroclimatic events have lead to the emergence of scientific discussions about the risk of flooding over a regional scale. They have contributed to put forward the vulnerability of some urban areas, hence questioning regional planning logics, especially in the areas close to highly developping urban centres. These phd researches focus on the study, on different scale, of these urban extensions. They are characterised by their initial degree of vulnerability and assessed in regards to both french administration regulations and climatic constraints. Areas under study include Quimper and some districts belonging to Rennes urban centre. The method developped is based on two main steps. First, the flooded areas limits are defined and secondly, urban districts developments are assessed. Urban districts developments analyses rely upon an historical approach taking into account the settling and evolution of former city centres as well as on a recent analysis of urban extension prevailing during the XX° and XXI° centuries. This approach permits to determine the spatial trajectories of districts land uses especially in flooded plains. The analysis permits to put forward the main logics which control the urban development as well as ascertain the increase of flooding risk. It aims at both accurately comprend stakes resulting from urban development and at increase the understanding of the stakeholders attitudes (especially local elected) when facing a flood event. Flood events taken into consideration can be former as well as current ones. Main results put forward that risk adaptation strategies often rely on an a minima risk consideration: It is poorly considered when management projects are elaborated or applied
La sécheresse dans la France de l'Ouest : étude d'après les bilans hydriques et les données des satellites NOAA-AVHRR by Vincent Dubreuil( Book )

4 editions published between 1994 and 1996 in French and held by 5 WorldCat member libraries worldwide

The drought is an important climatological constraint in the west part of France (Bretagne, Basse Normandie, Pays de Loire), although this area is frequently known as cloudy and rainy. Conflicts between users have increased with latest droughts (1976, 1989, 1990) and because of a more and more consumption of water. This study first make an evaluation of risks, using climatological datas and hydrological models. Then, a detailed cartography of drought areas is proposed using images from NOAA-AVHRR satellites. The regional contrasts are importants. Highlands from Brittany (Monts d'Arrée, Méné) and from Normandy (bocage) are less vulnerable than the central part of Brittany and the Rennes area. The southern countries (Vendee) are also frequently concerned by droughts. But the problem also depends from the local activities. Therefore, remote sensing is use to establish a cartography of landscapes. It shows that the development of maize is in contradiction with the frequence of drought in most areas. This explains the difficulties of many farmers during the droughts of 1989 and 1990. In the same time, it shows that the study of drought is an essential fact for regional and country planning
Estimativas de biomassa, do índice de área foliar e aplicação do sensoriamento remoto no monitoramento no estudo da cobertura vegetal em áreas de florestas ombrófila aberta e densa na Amazônia = Estimation de la biomasse, de l'indice foliaire et application de la télédétection dans l'étude de la couverture végétale en forêts ompbrophiles ouverte et dense en Amazonie by Mabiane Batista França Carreire( Book )

4 editions published between 2009 and 2011 in Portuguese and French and held by 5 WorldCat member libraries worldwide

The Amazon, the largest and most diverse of the tropical forest wilderness areas, shelter 33% of the world's tropical forests. However, the scenario of deforestation and degradation of the Amazon forest has been the subject of worldwide interest, primarily due to the growing contribution of deforestation to global warming. This study was conducted at the Caiabi Farm in Alta Floresta (north of Mato Grosso State) and in the Tropical Forestry Experimental Station (EEST/INPA) in Manaus (Central Amazonia). In this research, the main objectives were the study of the vegetation structure, the stock of dry biomass, the leaf area index (LAI) and the spectral behaviour of the open and dense ombrophilous forests. The field inventory was carried out on 3 samples of primary forest, 9 samples of experimental developed forest with different clear cutting levels and 7 samples of forest in regeneration (5, 8, 11, 23 and 30 years old), which have been cut down and burned, without subsequent use. In each sample of 1 ha, divided into 9 subsamples 20 by 20 m, we have measured and identified, by the vernacular name, all the individuals with DBH ≥ 5 cm (in secondary forests), and with a DBH ≥ 10 cm (in primary and managed forests). In sub-samples, hemispherical photographs were taken at 10 m-intervals to estimate LAI. The florisctic analysis showed that the vegetation of Alta Floresta is less diverse than the vegetation of Manaus. The stock of biomass and carbon increases as the successional stage advances. In the managed forest, biomass values were close to those of primary forest, indicating that these exploited areas recovered the original stock of biomass, 19 years after the selective exploitation. In developed forests, statistical analyses of LAI from Alta Floresta and Manaus areas, suggest also highly significant differences (p < 0.01) between the various succession stages. However, in developed forest, statistical analyses of LAI do not present significant differences between treatments after 19 years. Image processing showed us that the SAVI values made it possible to observe variations among the succession stages. The secondary forests dominated by Cecropia showed the greatest vegetation indices. Statistical analyses of the temporal series of the developed areas suggested that the NVDI, SAVI values and the images fractionsvegetation and fraction-shade change with time. However, the interactions of treatment*NDVI, treatment*SAVI, treatment*fractions vegetation and treatment*fractions shade do not vary significantly over time
Etude par télédétection de la dynamique du soja et de l'impact des précipitations sur les productions au Mato Grosso (Brésil) by Damien Arvor( Book )

3 editions published between 2009 and 2010 in French and held by 4 WorldCat member libraries worldwide

Since 2005, Mato Grosso became the first soybean producer State in Brazil. This evolution is the result of the progression of a pioneer frontier, which brought about undeniable positive socio-economic development but also high deforestation rates. The objective of this PhD is to contribute to a better knowledge of the interactions climate / society in Mato Grosso. More precisely, this work aims at determining the role of soybean dynamic as a driving force of the pioneer frontier, as well as evaluating the way rainfalls acts on the evolution of soybean territories. The analysis of these dynamics is carried out using classifications of temporal series of MODIS TERRA/EVI remotely sensed data. Our results indicate that the soybean agricultural expansion between 2000 and 2007 explains 12 % of the deforestation in Mato Grosso. In addition, 71 % of newly cultivated soybean fields in Mato Grosso are sewed in formerly deforested areas. Another important observation is that the agricultural sector is now initiating a new stage of development based on agricultural intensification: 46 % of the increase of agricultural production was obtained through changes in agricultural management practices. This is the consequence of the adoption of double cropping systems, which concern 30 % of the cultivated area in 2007 (against 6 % in 2000). We also show that agricultural intensification is affected by a strong spatial variability linked to the rainy season characteristics (annual rainfall, onset, end and duration of the rainy season). Those were computed using precipitation estimates from remotely sensed TRMM 3B42 products. Our results demonstrate a narrow relationship between intense rainy seasons and agricultural intensification
Suivi des changements d'occupation et d'utilisation des sols d'origine anthropique et climatique à l'échelle régionale par télédétection moyenne résolution (application à la Bretagne) by Rémi Lecerf( Book )

3 editions published between 2008 and 2009 in French and held by 4 WorldCat member libraries worldwide

Remote sensing data available so far were not relevant for the monitoring of land cover and land use changes on a regional scale in areas with a highly fragmented landscape, because of their temporal resolution and their spatial coverage that are too limited. The objectives of this thesis were on the one hand evaluate time series of remote sensing images with a medium spatial resolution for this type of monitoring, and on the other hand to identify and characterize land use changes in intensive farming regions through two indicators, that are the density of vegetation cover in winter and the ratio cereals / grasslands. For this, time series of MODIS images were used on the Brittany region between 2000 and 2008. A complete chain of processing operations was implemented. It includes methods already used on remote sensing images, but that had to be adapted to the MODIS time series, and original methods, including reconstruction of time series. The results show trends as the decrease of grassland at the expense of cereals or the increase of intercropping systems. They also highlight isolated changes as the increase in wheat in 2006 and 2008 and in corn in 2001. The main drivers of land use changes, which are special climatic conditions or changes in agricultural practices depending on the political or socio-economic context, have been identified. The major interest of MODIS images is to identify "hot spots" on a regional scale, i.e. areas that pose a risk to the environment, such as areas without vegetation cover during several years, and during a long period of the year
Risques et changements climatiques by Association internationale de climatologie( Book )

2 editions published in 2010 in French and held by 3 WorldCat member libraries worldwide

Caractérisation de la viticulture irriguée par télédétection en contexte de changement climatique : application aux vignobles de la province de Mendoza en Argentine by Perrine Loussert( Book )

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

In the climate change context, the adaptation and sustainability of agricultural systems is a major challenge. In Argentina, the 5th worldwide wine producing country, the thermal and hydrical conditions are already extreme for grapevine production. This perennial crop sustainability depends on the adaptation of cultural practices. The objective of the thesis was to develop tools for helping in cultural pratices management using optical and SAR remote sensing images. First, an analysis of climate evolution and its inner regional variability hilighted the main threats and opportunities in the climate change context. At the local scale, working on a high number of heterogeneous vineyards improved the knowledge about signal and target interaction depending on cultural practices. Maps of row orientation, areas protected by anti-hail nets and irrigation systems were produced for an inventory of the actual viticultural system conditions. Then, the potential of remote sensing data for grapevine growth monitoring and irrigation requirements was evaluated and led to promising preliminary results for developping irrigation monitoring tools destinated to grapevine producers
Régime des pluies et déforestation en Amazonie Méridionale by Nathan Dos Santos Debortoli( Book )

2 editions published in 2013 in French and held by 2 WorldCat member libraries worldwide

207 postes pluviométriques de l'Agence brésilienne sur l'eau (ANA) dans le sud de l'Amazonie et au nord du Cerrado sont analysés, tout en utilisant des tests non-paramétriques de Pettitt qui identifie les ruptures dans les séries chronologiques de pluviométrie, le test de Mann-Kendall qui détecte des tendances annuelles et saisonnières des indices pluviométriques, ainsi qu'un modèle de régression linéaire qui identifie les tendances subtiles de croissance ou décroissance dans les précipitations. Le test de Pettitt a indiqué 16% des ruptures dans les séries chronologiques des précipitations, et le test mensuel/saisonnière de Mann-Kendall a mis en évidence que 41% des postes ont des tendances négatives, principalement dans les saisons de transition (début et fin de la saison de pluie). Le modèle de régression linéaire a montré que 63% des données ont présenté des tendances négatives. Et en fine échelle les données temporelles nous ont permis d'identifier les dates de début et fin de la saison des pluies. Les résultats suggèrent qu'il existe de forts contrastes entre l'Amazonie et le Cerrado. Cette analyse chronologique a également indiqué que durant la période couverte par l'étude il y a eu un retard dans le début de la saison des pluies pour 84% des postes pluviométriques, et pour la fin un décalage prématuré de 76%, et pour son ampleur une diminution en 88%. L'analyse de krigeage exponentielle ordinaire des postes pluviométriques dans les zones déboisées a également révélé qu'il y a d'importantes chances que la déforestation soit un adjuvant à l'affaiblissement de la saison des pluies, en particulier dans les zones fortement déboisées de l'État de Mato Grosso et les régions au nord de l'État de Rondônia. Dans ce travail, des séries chronologiques des précipitations sont mises en corrélation avec des données d'occupation du sol, acquises par des images satellites Landsat 5, à partir d'une perspective temporelle. Cette analyse des zones tampons (1-50km) est divisée par 3 périodes de couverture forestière (avant 1997, parmi 1997-2010 et 2010) a indiqué que sur le plan local, au niveau des précipitations, il n'existe pas de corrélation. Pourtant, la méthodologie des zones tampons a suggéré que dans les grandes zones forestières, elle peut éventuellement s'appliquer. Malgré que les données climatiques ne montrent pas decorrélation significative avec les données de la couverture forestière, les analyses de Pettit, Mann-Kendall, la régression linéaire et l'identification de la saison des pluies rejoignent des découvertes récentes sur les modèles de circulation de large-échelle
Local rainfall trends and their perceptions by Amazonian communities by Vincent Dubreuil( )

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

Analyse spatiale et temporelle de la variabilité des régimes de précipitations dans le bassin amazonien by Véronique Michot( Book )

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

Precipitations are the main seasonal climate marker between the tropics and largely determine surface hydrolosy as well as many anthropogenic activities. The Amazon Basin is characterized by various regional rainfall patterns, whose spatial and temporal variability is high. Numerous studies have shown that this variability is related to large scale external forcing, such as sea surface temperatures. The analysis of precipitation in this region is generally related to trends or extreme of rainfall. However, the detection of similar years associated with regional sub-regimes and the analysis of their links with a specific ocean-atmosphere configuration has only been fewly addressed until now. The main objective of this thesis is to create a typology of regional precipitation sub-régimes in the Amazon Basin and to link them to ocean-atmosphere areas able to partly explain them. For that purpose data from 205 raingauges in 5 countries of the Amazon Basin were selected and submitted to a series of statistical tests and reconstruction. Outgoing longwave radiation, specific humidity, sea surface temperature, as well as satellite data (TRMM 3B42 version 7) were also used with the aim of improving the understanding of the spatial rainfall variability.Within each of the seven Amazon regions identified in this work, two to four precipitation sub-regimes were detected. Among the twenty six sub-regimes, twenty are associated with specific humidity and sea surface temperature anomalies. The precipitation sub-regimes of the northern half and the westernmost Andes of the Amazon Basin are most closely related to oceanic anomalies. Moreover, as previously described in the literature, reduction or surplus of rain often correspond to El Niño or La Niña phases, but this thesis also highlights the important role of the Atlantic, more specifically the southern part, on the move of the ITZC and on specific humidity. This work also stresses the link between the temporality of ocean events anomalies and rainfall anomalies.The TRMM 3B42 v7 product allows to enhance the analysis of the spatial variability of rainfall at the intra-regional scale of the North region of the Amazon Basin and to relativize the spatial coherence of its precipitation sub-regimes
Combining socioeconomic development with environmental governance in the Brazilian Amazon: the Mato Grosso agricultural frontier at a tipping point by Damien Arvor( )

1 edition published in 2016 in English and held by 2 WorldCat member libraries worldwide

A geostatistical approach to create a new climate types map at regional scale: case study of New Brunswick, Canada by Guillaume Fortin( )

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

Femmes noires dans les mouvements de gauche durant la dictature au Brésil (1964-1985) by Tauana olivia Gomes silva( Book )

2 editions published in 2019 in French and held by 2 WorldCat member libraries worldwide

Les femmes noires brésiliennes ont participé activement aux mouvements de gauche pendant la dictature militaire au Brésil (1964-1985). Les trajectoires étudiées sont généralement le résultat de l'engagement de ce groupe social dans les organisations anarchistes et communistes depuis le début du XXe siècle. La présente thèse analyse, d'une part, les conceptions, les évaluations et les stratégies conçues par les organisations politiques concernant le sens donné à l'action des hommes et femmes noirs en tant que militants, et, d'autre part, elle analyse la diffusion des idéologies de gauche dans les espaces traditionnels de mobilisation collective des communautés afro-brésiliennes, ainsi que l'emploi de leurs idées et de leurs méthodes pour répondre aux demandes immédiates en matière d'alimentation, de logement, et de revendication des droits des travailleurs face aux gouvernements autoritaires. Ensuite, la recherche se concentre sur l'histoire de vie de neuf militantes noires engagées dans la lutte contre le régime établi après 1964: Diva Moreira, Maria do Espírito Santo Tavares dos Santos, Thereza Santos, Helenira Resende de Souza Nazareth, Lucia Maria de Souza, Dora Lúcia de Lima Bertúlio, Maria Diva de Faria, Arabela Pereira Madalena et Edna Maria Santos Roland. L'objectif est d'étudier le phénomène de l'engagement, c'est-à-dire, ses principales motivations, les conditions dans lesquelles les actions militantes ont été entreprises et, enfin, leurs expériences en tant que femmes noires actrices de mouvements opposés à la dictature
Apport de la télédétection spatiale pour l'étude multiscalaire des interactions climat-surface en Afrique de l'Ouest : étude du bassin versant de l'Ouémé supérieur (Bénin) by Thi Phuong Thao Do( )

1 edition published in 2014 in French and held by 2 WorldCat member libraries worldwide

This thesis is part of the international AMMA program (Analyse Multidisciplinaire de la Mousson Africaine - Multidisciplinary Analysis of African Monsoon) whose objective is to better understand the regional dynamics of climate-environment-society interactions. It is a contribution to the study of the spatio-temporal variability of vegetation, according to different land use types and under the constraints of seasonal and interannual variations in rainfall in the upper basin of Ouémé river, Benin. This area has an extensive network of hydro-climatic ground monitoring, observatory AMMA-Catch, which provides many in-situ data. The analysis also relies on data from different optical remote sensing satellites (LANDSAT, SPOT-VGT, MODIS, MSG-SEVIRI or ECOCLIMAP) for the study of land occupation, variability of photosynthetic vegetation or rainfall estimate (RFE). The study focuses mainly on three questions: 1) the changes in surface conditions recently observed in the experimental area of upper Ouémé; 2) the analysis of various data from satellite remote sensing to diagnose regional bioclimatic variability of vegetation; 3) the understanding of climate/vegetation interface interactions, in order to interpret certain intra-and interannual bioclimatic variations depending on the main surface conditions. The main results suggest that it is possible to discriminate the functional relationships from the main conditions of forest or anthropized surface. The diachronic analysis through the classification of Landsat (ETM +) images show that the cultivated areas recorded regionally an increase of 25% over the period of 2003-2012. The areas of set-aside decrease, while shrublands increase. All forests lost in area over the decade observed, particularly dense forest (presumably protected in this region) with a drop of over 16%. The spatio-temporal variability of a vegetation index (NDVI) significantly depends on three main types of land use, even though the noise due to the cloud cover complicates the analysis and interpretation. The contrasts between the preserved natural forest area (the forest reserve) and the agricultural areas (crops and fallow) are particularly visible. Over the decade 2002-2012, there is no trend of rainfall, but rather a succession of wet and dry phases, which ultimately induce an interannual stability of NDVI. The average phase difference between rainfall and vegetation activity is four decades, but it seems that the end of the vegetation growing season has retreated back to at least 10 days during the study period, reflecting a change in rainfall at the end of the year
Conséquences des changements climatiques sur la diversité biologique des zones humides : une analyse de politiques publiques et de gestion au Brésil et en France by Heloisa de Camargo Tozato( Book )

2 editions published in 2015 in French and held by 2 WorldCat member libraries worldwide

Visando analisar como o Brasil e a França realizam a gestão da política de Ramsar para a conservação da biodiversidade das zonas úmidas frente os desafios impostos pelos impactos das mudanças climáticas, a presente tese utilizou um conjunto multitemático de indicadores ambientais organizados na matriz Pressão-Estado-Impacto-Respostas, adaptada de PNUMA (2004), e sustentados pela análise comparada. O trabalho foi dividido em três partes. Conclui-se que, no que concerne a triangulação das ações internacional-nacional-local para que as políticas nacionais possam estimular, nortear e respaldar legalmente as ações locais, a França apresenta maior maturidade política na gestão desses ecossistemas e consegue fazer chegar, em nível local, as recomendações e orientações internacionais
L'îlot de chaleur urbain et le changement climatique : application à l'agglomération rennaise by Xavier Foissard( Book )

2 editions published in 2015 in French and held by 2 WorldCat member libraries worldwide

L'urbanisation engendre, par l'imperméabilisation des surfaces et la présence de bâtiments, une modification locale du climat et, plus spécifiquement, le phénomène d'îlot de chaleur urbain (ICU). Ce phénomène se traduit par l'augmentation de la température en ville la nuit. Lors des vagues de chaleur ce phénomène peut causer un inconfort voire une surmortalité. Dans le contexte du changement climatique et d'une dynamique démographique importante, la thèse est réalisée sur le territoire de Rennes Métropole. Au cours de cette thèse, plusieurs objectifs sont poursuivis. Dans un premier temps, l'étude porte sur l'analyse de la variabilité spatiale de l'ICU selon l'occupation du sol et des formes urbaines. Afin d'observer ce phénomène sur le territoire de Rennes Métropole, plusieurs réseaux de mesuressont mis en place. Le premier réseau concerne l'échelle de l'agglomération avec 22 stations météorologiques. Le second réseau est établi à l'échelle intra-urbaine avec l'installation de 20 capteurs de température. Enfin, le troisième réseau de mesures vise à observer la variabilité de l'ICU au sein de deux quartiers rennais et d'une petite ville, Vezin-le-Coquet. Dans un second temps, des modèles de spatialisation de l'ICU sont construits à l'échelle de l'agglomération, puis, à l'échelle intra-urbaine. Ces modèles permettent de réaliser des cartes de l'ICU pour ces deux échelles emboitées. Dans un troisième temps, l'analyse temporelle est établie par la relation entre les types de temps et l'ICU. Cette analyse permet de construire un modèle de prévision de l'ICU quotidien. A partir de ce modèle, l'ICU quotidien est projeté par les sorties régionalisées des modèles du changement climatique. Plusieurs outils d'aide à la décision sont proposés à partir des modèles développés de l'ICU. L'exposition de l'agglomération rennaise au changement climatique est évaluée à partir des cartes de l'ICU et de plusieurs indices projetés par les sorties régionalisées des modèles du changement climatique
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Vincent Dubreuil schrijver