Relationship between Climate and Groundwater Recharge in the Besseke Watershed (Douala – Cameroon)

DOI: 10.4236/jwarp.2011.38070   PDF   HTML     5,337 Downloads   10,084 Views   Citations


In Douala, economic capital of Cameroon, annual rainfall and temperature from its meteorological station (latitude: 4o00'N; longitude: 9o43'E; elevation: 5.0 m) were obtained and analysed to investigate the impact of climate variability on groundwater recharge. The climate shows a strong evidence of changes towards persistent weather conditions. The region is mainly characterized by a mean inter-annual temperature of 27.4oC and influenced by the mount Cameroon (4095 m in elevation). A recent decrease in mean annual rainfall occurred since 1982. The average annual rainfall which was 4200 mm with about 220 days of rainfall from 1917 to 1937 has moved to 4049 mm for the period 1937-1957, to 3826 mm for the period 1968-1988 and to 3619 mm for the period 1971-2001. Between, 1997 and 2007, the total number of days of rainfall has not exceeded 220 (193 days of rainfall in 1998 and 216 days of rainfall in 1999). By using Gauss law on 31 years (1971-2001) of annual rainfall, one note that the value 2850 mm has 20% of luck to be not observed and the value 4219 mm has 20% of luck to be exceeded. Douala already suffers from water shortage not because of decrease of rainfall but due to quality of underground water and salty taste of the main river catched for water supply. Moreover, precipitation is considered as the main replenishment source of all water resources in the study area (watershed of Besseke). The calculated interannual groundwater recharge rate (potential recharge, not necessarily real) is about 9% compared to the interannual total precipitation received by this area located closer the Atlantic Ocean (Gulf of Guinea). Groundwater discharge from the aquifer occurs between November and March.

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F. Roger, N. Benjamin, T. Ghislain and E. Emmanuel, "Relationship between Climate and Groundwater Recharge in the Besseke Watershed (Douala – Cameroon)," Journal of Water Resource and Protection, Vol. 3 No. 8, 2011, pp. 607-619. doi: 10.4236/jwarp.2011.38070.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] F. Mkamkan Kamga, “Validation of General Circulation Climate Models and Projections of Temperature and Rainfall Change in Cameroon and Some of Its Neigh- bouring Areas,” Theoretical and Applied Climatology, Vol. 67, No. 1-2, 2000, pp. 97-107. doi:10.1007/s007040070018
[2] F. Mkamkan Kamga, “Impact of Greenhouse Gas Induced Climate Change on the Runoff of the Upper Benue River (Cameroon),” Journal of Hydrology, Vol. 252, No. 1-4, 2001, pp. 145-156. doi:10.1016/S0022-1694(01)00445-0
[3] Intergovernmental Panel on Climate Change, “Climate Change 2001: Impacts, Adaptation and Vulnerability, Contribution of Working Group II to the Third Assessment Report of the Intergovernmental Panel on Climate Change (IPCC),” In: J. J. McCarthy, O. F.Canziani, N. A. Leary, D. J. Dokken and K. S. White, Eds., Cambridge University Press, Cambridge, p. 1032.
[4] L. Menzel and G. Burger, “Climate Change Scenarios and Runoff Response in the Mulde Catchment (Southern Elbe, Germany),” Journal of Hydrology, Vol. 267, No. 1-2, 2002, pp. 53-64. doi:10.1016/S0022-1694(02)00139-7
[5] I. D. Phillips, G. R. Mcgregor, C. J. Wilson, D. Bower and D. M. Hannah, “Regional Climate and Atmospheric Circulation Controls on the Discharge of Two British Rivers,” Theoretical and Applied Climatology, Vol. 76, No. 3-4, 2003, pp. 141-164. doi:10.1007/s00704-003-0021-8
[6] D. Sighomnou, L. Sigha, G. Lienou, A. Dezetter, G. Mahe, E. Servat, E. Paturel, J. C. Olivry, F. Tchoua and G. E. Ekodeck, “Impacts des Fluctuations Climatiques sur le Régime des écoulements du Fleuve Sanaga au Cameroun, Prospectives Pour le XXIème Siècle,” Technical Do- cument in Hydrology, UNESCO, Vol. 80, 2007, pp. 173-182.
[7] R. Feumba, J. G. Tabue Youmbi and B. Ngounou Ngatcha, “Variabilité Climatique dans le Bassin Versant de l’Ekozoa à Yaoundé au Cameroun et Impact sur la Recharge de la Nappe,” Paper presented at the workshop held in Cotonou, Benin on ‘climate change’ within the framework of the launch of projects RIPIESCA and CORUS 2, 8-11 Octobre 2007.
[8] J. B. Suchel, “Les Climats du Cameroun,” Thèse Doctorat d’Etat, Université Bordeaux III, Bordeaux, Vol. 4, 1987, p. 1186
[9] J. C. Olivry, “Fleuves et Rivières du Cameroun,” Mesres-Orstom, Paris, 1986, p. 733.
[10] P. R Njiké Ngaha, “Contribution à L’Etude Géologique, Stratigraphique et Structurale de la Bordure du Bassin Atlantique du Cameroun,” Thèse de Doctorat 3eme cycle, Université de Yaoundé, Yaoundé, 1984, p. 133.
[11] M. Regnoult, “Synthèse Géologique du Cameroun—Mi- nistère des Mines, de l’Eau et de l’Energie,” 1986, p. 119.
[12] E. Kouakou Koffi, A. Goula Bi Tie and Savane Issiaka, “Impacts de la Variabilibité Climatique sur les Resso- urces en eau de Surface en Zone Tropicale Humide: Cas du Bassin Versant Transfrontallier de la Comoé, C?te d’Ivoire- Burkina Faso,” European Journal of Scientific Research, Vol. 16, No. 1, 2007. pp. 31-43.
[13] P. Franquin, “Analyse Agro Climatique en Région Tropicale, Saison Pluvieuse et Saison Humide, Appli- cation,” Cahier ORSTOM, série biologique, No. 9, 1969, pp. 65-95.
[14] P. Brochet and N. Gerbiers, “L’évapotranspiration,” Mo- nographie n 65, S.M.M., Climatolog, Paris, 1975, p. 95.
[15] C. W. Thornthwaite, “An Approach toward a Rational Classification of Climate,” Geography Review, Vol. 38, No. 1, 1948, pp. 55-94.
[16] S. Sambou and E. N. Malanda Nimy, “Critique Sta- tistique des Séries de Pluies Annuelles dans le Bassin Amont du Fleuve Sénégal,” IAHS Publication, Vol. 308, 2006, pp. 319-324.
[17] J. E. Paturel, E. Servat, B. Kouamé, H. Lubès, M. Ouedraogo and J. M. Masson, “Climatic Variability in Humid Africa along the Gulf of Guinea, Part two: An Integrated Regional Approach,” Journal of Hydrology, Vol. 191, No. 1-4, 1997, pp. 16-36. doi:10.1016/S0022-1694(96)03069-7
[18] J. E. Paturel, E. Servat, H. Lubes and M. O. Delattre, “Analyse de Séries Pluviométriques de Longue Durée en Afrique de l’Ouest et Centrale non Sahélienne dans un Contexte de Variabilité Climatique,” Hydrological Sc- iences Journal, Vol. 43, No. 6, 1998, pp. 937-946. doi:/10.1080/02626669809492188
[19] E. Servat, J. E. Paturel, H. Lubès, B. Kouamé, M. Ouedraogo and J. M. Masson, “Climatic Variability in Humid Africa along the Gulf of Guinea. Part One: Detailed Analysis of the Phenomenon in C?te d’Ivoire,” Journal of Hydrology, Vol. 191, No. 1-4, 1997, pp. 1-15. doi:10.1016/S0022-1694(96)03068-5
[20] D. Sighomnou, “Analyse et Redéfinition des Régimes Climatiques et Hydrologiques du Cameroun: Perspectives D’évolution des Ressources en eau,” Thèse de doctorat d’Etat es Sciences, Université de Yaoundé I, Cameroun, 2004, p. 209.
[21] H. Niel, C. Leduc and C. Dieulin, “Caractérisation de la Variabilité Spatiale et Temporelle des Précipitations Annuelles sur le Bassin du Lac Tchad au Cours du 20ème Siècle,” Hydrological Sciences Journal, Vol. 50, No. 2, 2005, pp. 223-243.
[22] S. E. Nicholson, “Climatic and Environmental Change in Africa during the Last Two Centuries,” Climate Research, Vol. 17, No. 2, 2001, pp. 123-144. doi:10.3354/cr017123
[23] Secheresse, “Journal Sècheresse,” Secheresse, Vol. 14, No. 1, January-March 2003.
[24] G. Castany, “Traité Pratique des eaux Souterraines,” 2nd Edition, Dunod, Paris, 1963, p. 696.
[25] L. Turc, “Evolution des Besoins en eau D’Irrigation. Evapotranspiration Potentielle. Formule Climatique Sim- plifiée et Mise à Jour,” Annuaire Agronomique, Vol. 12, No. 1, 1961, pp. 13-49.
[26] S. Lallahem, “Structure et Modelisation Hydrodynamique des Eaux Souterraines: Application à L’Aquifere Crayeux de la Bordure Nord du Bassin de paris,” Thèse de Doctorat en Génie Civil, spécialité Hydrogéologie; Université des Sciences et Technologies de Lille, laboratoire de mé- canique, 2002, p. 243.
[27] J. Molinero and J. Raposo, “Recharge Estimation and Groundwater Resources Assessment in Granitic Terrains of Galicia-Costa Hydrographical District (NW Spain),” In: L. Ribeiro, A. Chambel, Condesso, M. T. De Melo, XXX IAH Congress—Groundwater and Ecosystems, Abstract book, 2007, pp. 221-222.
[28] K. Yoon-Young, L. Kang-Kun and S. IG Hwan, “Urba- nization and the Groundwater Budget, Metropolitan Seoul Area, Korea,” Hydrogeology Journal, Vol. 9, No. 4, 2001, pp. 401-412. doi:10.1007/s100400100139
[29] M. Kili, El M. Bouabid and C. Jamal, “Bilan Hydrique des Sols et Recharge de la Nappe Profonde de la Plaine du Gharb (Maroc),” Sécheresse, Vol. 19, No. 2, 2008, pp. 145-151.
[30] Tristan D’Orgeval, “Impact du Changement Climatique sur la Saison des Pluies en Afrique de L’Ouest: Que nous Disent les Modèles de Climat Actuels?” Sécheresse, Vol. 19, No. 2, 2008, pp. 79-85.
[31] R. Feumba, B. Ngounou Ngatcha, C. Njakou Fomegni, E. Ngnikam and G. E. Ekodeck, “Water Quality, Exposure and Health of Population of the Industrial Zone of Bonaberi-Douala in Cameroon: Case of the Watershed of Besseke,” Poster présented at Ecohealth 2010, Londres, 18-20 2010.

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