Search Results - "Vischel, T."

Recent trends in the regime of extreme rainfall in the Central Sahel by Panthou, G., Vischel, T., Lebel, T.

“…ABSTRACT Ongoing global warming raises the hypothesis of an intensification of the hydrological cycle, extreme rainfall events becoming more frequent. However,…”
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Rainfall intensification in tropical semi-arid regions: the Sahelian case by Panthou, G, Lebel, T, Vischel, T, Quantin, G, Sane, Y, Ba, A, Ndiaye, O, Diongue-Niang, A, Diopkane, M

“…An anticipated consequence of ongoing global warming is the intensification of the rainfall regimes meaning longer dry spells and heavier precipitation when it…”
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A synthetic view of rainfall intensification in the West African Sahel by Chagnaud, G, Panthou, G, Vischel, T, Lebel, T

“…Abstract The West African Sahel has been facing for more than 30 years an increase in extreme rainfall with strong socio-economic impacts. This situation…”
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Extreme rainfall in West Africa: A regional modeling by Panthou, G., Vischel, T., Lebel, T., Blanchet, J., Quantin, G., Ali, A.

“…In a world of increasing exposure of populations to natural hazards, the mapping of extreme rainfall remains a key subject of study. Such maps are required for…”
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Characterising the space–time structure of rainfall in the Sahel with a view to estimating IDAF curves by Panthou, G, Vischel, T, Lebel, T, Quantin, G, Molinié, G

“…Intensity–duration–area–frequency (IDAF) curves are increasingly demanded for characterising the severity of storms and for designing hydraulic structures…”
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Statistical downscaling of the French Mediterranean climate: assessment for present and projection in an anthropogenic scenario by Lavaysse, C, Vrac, M, Drobinski, P, Lengaigne, M, Vischel, T

“…The Mediterranean basin is a particularly vulnerable region to climate change, featuring a sharply contrasted climate between the North and South and governed…”
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A 60‐year reconstructed high‐resolution local meteorological data set in Central Sahel (1950–2009): evaluation, analysis and application to land surface modelling by Leauthaud, C., Cappelaere, B., Demarty, J., Guichard, F., Velluet, C., Kergoat, L., Vischel, T., Grippa, M., Mouhaimouni, M., Bouzou Moussa, I., Mainassara, I., Sultan, B.

“…ABSTRACT The Sahel has experienced strong climate variability in the past decades. Understanding its implications for natural and cultivated ecosystems is…”
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The intensification of thermal extremes in west Africa by Ringard, J., Dieppois, B., Rome, S., Diedhiou, A., Pellarin, T., Konaré, A., Diawara, A., Konaté, D., Dje, B.K., Katiellou, G.L., Seidou Sanda, I., Hassane, B., Vischel, T., Garuma, G.F., Mengistu, G., Camara, M., Diongue, A., Gaye, A.T., Descroix, L.

“…This study aims in filling the gap in understanding the relationship between trend and extreme in diurnal and nocturnal temperatures (Tx and Tn) over the Gulf…”
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Generation of High-Resolution Rain Fields in West Africa: Evaluation of Dynamic Interpolation Methods by Vischel, T., Quantin, G., Lebel, T., Viarre, J., Gosset, M., Cazenave, F., Panthou, G.

“…High-resolution rain fields are a prerequisite to many hydrometeorological studies. For some applications, the required resolution may be as fine as 1 km in…”
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Integrated surface water–groundwater modelling in the context of increasing water reserves of a regional Sahelian aquifer by Massuel, S, Cappelaere, B, Favreau, G, Leduc, C, Lebel, T, Vischel, T

“…Despite the Sahelian drought of the 1970s–1990s, the unconfined aquifer in southwest Niger exhibits a multidecadal increase in groundwater reserves. Recent…”
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Comparison of soil moisture fields estimated by catchment modelling and remote sensing: a case study in South Africa by Vischel, T, Pegram, G.G.S, Sinclair, S, Wagner, W, Bartsch, A

“…The paper compares two independent approaches to estimate soil moisture at the regional scale over a 4625 km2 catchment (Liebenbergsvlei, South Africa). The…”
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Soil moisture mapping over West Africa with a 30-min temporal resolution using AMSR-E observations and a satellite-based rainfall product by Pellarin, T, Tran, T, Cohard, J.M, Galle, S, Laurent, J.P, De Rosnay, P, Vischel, T

“…An original and simple method to map surface soil moisture over large areas has been developed to obtain data with a high temporal and spatial resolution for…”
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Influence of rainfall space-time variability over the Ouémé basin in Benin by Gascon, T., Vischel, T., Lebel, T., Quantin, G., Pellarin, T., Quatela, V., Leroux, D., Galle, S.

“…In West Africa, the concomitant occurrence of extreme droughts and damaging floods points to the urgent need for linking the climate variability at various…”
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Intensity–duration–frequency (IDF) rainfall curves in Senegal by Sane, Youssouph, Panthou, Geremy, Bodian, Ansoumana, Vischel, Theo, Lebel, Thierry, Dacosta, Honore, Quantin, Guillaume, Wilcox, Catherine, Ndiaye, Ousmane, Diongue-Niang, Aida, Diop Kane, Mariane

“…Urbanization resulting from sharply increasing demographic pressure and infrastructure development has made the populations of many tropical areas more…”
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Model-based study of the role of rainfall and land use–land cover in the changes in the occurrence and intensity of Niger red floods in Niamey between 1953 and 2012 by Casse, Claire, Gosset, Marielle, Vischel, Théo, Quantin, Guillaume, Tanimoun, Bachir Alkali

“…Since 1950, the Niger River basin has gone through three main climatic periods: a wet period (1950–1960), an extended drought (1970–1980) and since 1990 a…”
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Assimilation of SMOS soil moisture into a distributed hydrological model and impacts on the water cycle variables over the Ouémé catchment in Benin by Leroux, Delphine J, Pellarin, Thierry, Vischel, Théo, Jean-Martial Cohard, Gascon, Tania, Gibon, François, Mialon, Arnaud, Galle, Sylvie, Peugeot, Christophe, Seguis, Luc

“…Precipitation forcing is usually the main source of uncertainty in hydrology. It is of crucial importance to use accurate forcing in order to obtain a good…”
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Assessing the water balance in the Sahel: Impact of small scale rainfall variability on runoff. Part 2: Idealized modeling of runoff sensitivity by Vischel, Théo, Lebel, Thierry

“…As in many other semi-arid regions in the world, the Sahelian hydrological environment is characterized by a mosaic of small endoreic catchments with dry soil…”
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Conditional simulation schemes of rain fields and their application to rainfall–runoff modeling studies in the Sahel by Vischel, Théo, Lebel, Thierry, Massuel, Sylvain, Cappelaere, Bernard

“…In regions characterized by a great inter-annual variability or by decadal-scale changes of the rainfall regime, the simulation of long series of rainfall…”
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Modeling Surface Runoff and Water Fluxes over Contrasted Soils in the Pastoral Sahel: Evaluation of the ALMIP2 Land Surface Models over the Gourma Region in Mali by Grippa, Manuela, Kergoat, Laurent, Boone, Aaron, Peugeot, Christophe, Demarty, Jérôme, Cappelaere, Bernard, Gal, Laetitia, Hiernaux, Pierre, Mougin, Eric, Ducharne, Agnès, Dutra, Emanuel, Anderson, Martha, Hain, Christopher

“…Abstract Land surface processes play an important role in the West African monsoon variability. In addition, the evolution of hydrological systems in this…”
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Assessing the water balance in the Sahel: Impact of small scale rainfall variability on runoff: Part 1: Rainfall variability analysis by Balme, M, Vischel, T, Lebel, T, Peugeot, C, Galle, S

“…The mesoscale variability of the Sahelian rainfall is analysed from a series of 30 high time resolution rainfall series covering 13 years and a 110 x 160 km²…”
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