DOUGUÉDROIT , Annick

Dans les Cévennes (France) l'augmentation des précipitations moyennes, annuelles, saisonnières et mensuelles (1983-2010) a été étudiée en relation avec l'altitude. Ses corrélations avec non pas les altitudes des stations mais celles des altitudes lissées des crêtes autour des stations sont bonnes, voir très bonnes. Mais la détermination de ces...

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Summary: Topoclimatical modelling of temperature and its application to the French Extreme South-east.Temperature topoclimatical modelling in the thermally homogeneous areas relies on the relation betweentemperature and landscape aspects which command solar radiation receipts during day and cold air accumulationtowards the end of the night. It...

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Our research concerns the definition of the notion of river wave in comparison with "flash-flood" and hyper urban "flash-flood". The three definitions have been done through specific cases: the "flash-flood" in the Argens river basin on the 15th of June 2010, the hyper urban "flash-flood" in Marseille on the 19th September 2000 and the wave in...

The effect of time scale change by passing from year to season and from season to month has been studied on the space distribution of dry and humid vents in rainfall monthly data of fifteen stations from Kenya (1951-2006). Dry or humide events have been determined by a division into quantiles due to the mostly dissymetric distributions of the...

This study extends the previous one on Southern Alps warming since the previous century (Douguédroit, 1917). The same method relying on the difference between Southern facing slopes and Valley bottom data during two periods, 1959-1965 and 2009-2015 has been applied to the area between the Southern Alps and the Mediterranean Sea. This area...

This paper aims at comparing the evolution from 1950 to 2010 of the average annual minimum temperatures of 34 stations in the French Mediterranean region with the mean global average temperatures with a significant rise in temperatures between 1950 and 2012 divided into two periods, first a slowly descending one till the 70's followed by a...

Model simulations for the end of this century present for the Mediterranean climate a mean temperature increase and a precipitation decrease in all seasons, particularly important in summer. They conclude on a warm season drought more intense and long with could lead to a desertification in the southern Mediterranean areas and a northward shift...

During climate change in the 21st century tree species may not be able to follow the fast shift of their potential distribution area caused by higher temperatures and rainfall decrease. Examples of early warning signs of the deep impact of climate change on mediterranean landscapes are presented. During the 21st century forests stands should be...

This paper aims to identify the link between significant rainfall decreases detected between 1950 and 2000 in the Mediterranean Basin and the 500hPa height atmospheric circulation. The subregions and timeframes over the 50-year period covered are Mediterranean Iberia (October), Atlantic Iberia (March), Greece (January, winter) and the Near East...

The precipitation decrease is associated with a little shift in latitude of the jet-stream within the Mediterranean region and a change in the location in longitude of its straight sectors and of the Rossby waves.

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In the Cévennes, in summer, water resources are rare. The gap between these resources and population needs generates local difficulties. Climate change (possible aridification…) and the evolution of lifestyles (increase in consumption, water for leisure activities…) may increase the problems in the future. Except for inter-basin transfers, the...

In the Cévennes, in summer, water resources are rare. The gap between these resources and population needs generates local difficulties. Climate change (possible aridification…) and the evolution of lifestyles (increase in consumption, water for leisure activities…) may increase the problems in the future. Except for inter-basin transfers, the...