摘要
Register in the framework of the International Program of Research on Water Resources Management and Protection of Ecosystems, the Congo basin in which lies the catchment area of the Kadey (2647 km2) was selected to better assess the impact climate variability on the water surface in the perspective of supply drinking water both in the rainy season and in periods of low water. Based on new data from rainfall and flow rates obtained in the last fifteen years (1998-2013), the major trends in time series and the scope of the “drought” were identified. The historical rainfall in the basin is characterized by two major ruptures rainfall in 1969 and 1999. These have generated an order deficit of 14% respectively and an excess of nearly 19%. These phenomena also affected the recurrence of cumulative rainfall throughout the Kadey basin. Here, the hydrological response to excess rainfall is over 100%. However, it appears that over the period 1970-2012, the number of years that has undergone a “severe drought” is to play down.
Register in the framework of the International Program of Research on Water Resources Management and Protection of Ecosystems, the Congo basin in which lies the catchment area of the Kadey (2647 km2) was selected to better assess the impact climate variability on the water surface in the perspective of supply drinking water both in the rainy season and in periods of low water. Based on new data from rainfall and flow rates obtained in the last fifteen years (1998-2013), the major trends in time series and the scope of the “drought” were identified. The historical rainfall in the basin is characterized by two major ruptures rainfall in 1969 and 1999. These have generated an order deficit of 14% respectively and an excess of nearly 19%. These phenomena also affected the recurrence of cumulative rainfall throughout the Kadey basin. Here, the hydrological response to excess rainfall is over 100%. However, it appears that over the period 1970-2012, the number of years that has undergone a “severe drought” is to play down.
作者
Kaledje Paulin Sainclair Kouassy
Ngoupayou Jules-Rémy Ndam
Amidou Kpoumie
Takounjou Alain Fouepe
Ondoua Joseph Mvondo
Kaledje Paulin Sainclair Kouassy;Ngoupayou Jules-Rémy Ndam;Amidou Kpoumie;Takounjou Alain Fouepe;Ondoua Joseph Mvondo(Laboratory of Engineering Geology and Alterology, Faculty of Science, University of Yaounde 1, Yaounde, Cameroon;Department of Earth Sciences, Faculty of Science, University of Maroua, Maroua, Cameroon;Institute of Geological and Mining Research, Hydrological Research Centre, Yaounde, Cameroon)
