Nguimalet C.R., Orange Didier. (2020). Hydroclimatic variability in Tomi at Sibut, Gribingui at Kaga-Bandoro and Fafa at Bouca basins, in the Central African Republic. In :
Yu Z. (ed.), Lu C. (ed.), Cai J. (ed.), Mahé Gil (ed.), Mishra A. (ed.), Cudennec C. (ed.), Van Lanen H.A.J. (ed.), Orange Didier (ed.), Amani A. (ed.). Hydrological processes and water security in a changing world. Wallingford : AISH, 79-84. (Proceedings - AISH ; 383). Global FRIEND-Water Conference : Hydrological Processes and Water Security in a Changing World, 8., Pékin (CHN), 2018/11/06-09.
Titre du document
Hydroclimatic variability in Tomi at Sibut, Gribingui at Kaga-Bandoro and Fafa at Bouca basins, in the Central African Republic
Année de publication
2020
Type de document
Colloque
Auteurs
Nguimalet C.R., Orange Didier
In
Yu Z. (ed.), Lu C. (ed.), Cai J. (ed.), Mahé Gil (ed.), Mishra A. (ed.), Cudennec C. (ed.), Van Lanen H.A.J. (ed.), Orange Didier (ed.), Amani A. (ed.) Hydrological processes and water security in a changing world
Source
Wallingford : AISH, 2020,
79-84 (Proceedings - AISH ; 383).
Colloque
Global FRIEND-Water Conference : Hydrological Processes and Water Security in a Changing World, 8., Pékin (CHN), 2018/11/06-09
The research of ruptures on rainfall and discharge serial data from 1950 to 1995 of three small catchments (from 2000 to 6000 km2) of the Central African Republic, at the boundary between Chad and Congo basins, has shown a high spatial variability. The rupture observed in 1970 at the subcontinental scale, which started the drought period in West and Central Africa, is observed only on the Northward basin, the driest. Then it was difficult to compare the hydroclimatic periods from a basin to another one. However, all the studied basins have shown a degradation of the hydrological regime from the end of the 1980s onward, with a severe level since the end of 1980s. The depletion coefficients have the same range for the 3 studied basins than for the Ubangi River basin, widening the drought impact.
Plan de classement
Régimes hydroclimatiques [062REGHYD]
Descripteurs
PRECIPITATION ; DEBIT ; VARIATION SPATIALE ; SECHERESSE ; HYDROCLIMAT ; REGIME HYDROLOGIQUE ; DEGRADATION ; EAU SOUTERRAINE ; METHODOLOGIE ; BASSIN VERSANT ; COURS D'EAU ; 1950 1995 ; SERIE CHRONOLOGIQUE
Description Géographique
CENTRAFRIQUE ; AFRIQUE CENTRALE
Localisation
Fonds IRD [F A010083545]
Identifiant IRD
fdi:010083546
