La Houille Blanche
Number 7-8, Décembre 1989
|Page(s)||534 - 543|
|Published online||01 October 2009|
Le déficit des précipitations dans le Sud de la France (pluie-neige) pendant l'hiver 1988-1989. Conséquences sur l'hydrologie de haute et moyenne montagne
The precipitation deficit in the south of France (rain and snow) during the winter of 1988-89. Consequences on the hydrology of high and medium-high mountains
A detailed spatial analysis of winter falls and the snow cover in mountain areas (Jura, Massif Central, Pyrénées) in relation wilh the contributions in the upper basins of the Rhône, Loire, Dordogne and the Garonne and their affluents for the period 1948-88, puts the hydro-climatological events of the hydrological year 1988-89 into context.
A duration and spatial extension comparison of these water shortages, in relation to the dry years of the last hundred years (1880, 1921, 1942, 1949, 1976...) has been carried out by studying the longest historical series available in France. Is it an event that is part of the variability of our present climate, or can it be seen as the first sign of climatic change?
© Société Hydrotechnique de France, 1989