Spatio-Temporal Evolution of Rainfall over the Period 1981–2020 and Management of Surface Water Resources in the Nakanbe–Wayen Watershed in Burkina Faso

Author:

Yameogo Wennepinguere Virginie Marie12,Akpa You Lucette3,Danumah Jean Homian3,Traore Farid2ORCID,Tankoano Boalidioa1,Sanon Zezouma2,Kabore Oumar2,Hien Mipro1

Affiliation:

1. Département Environnement, Eaux et Forêts, Université Nazi BONI (UNB), Bobo–Dioulasso P.O. Box 1091, Burkina Faso

2. Département Gestion des Ressources Naturelles, Institut de l’Environnement et de Recherches Agricoles (INERA), Ouagadougou P.O. Box 8645, Burkina Faso

3. Centre Universitaire de Recherche et d’Application en Télédétection (CURAT), UFR-STRM, Université Félix Houphouët Boigny, Abidjan P.O. Box 801, Côte d’Ivoire

Abstract

Spatio-temporal analysis of rainfall trends in a watershed is an effective tool for sustainable water resources management, as it allows for an understanding of the impacts of these changes at the watershed scale. The objective of the present study is to analyze the impacts of climate change on the availability of surface water resources in the Nakanbe–Wayen watershed over the period from 1981 to 2020. The analysis was conducted on in situ rainfall data collected from 14 meteorological stations distributed throughout the watershed and completed with CHIRPS data. Ten precipitation indices, recommended by the ETCCDI (Expert Team on Climate Change Detection and Indices), were calculated using the RClimDex package. The results show changes in the distribution of annual precipitation and an increasing trend in annual precipitation. At the same time, a trend towards an increase in the occurrence and intensity of extreme events was also observed over the last 4 decades. In light of these analyses, it should be emphasized that the increase in precipitation observed in the Nakanbe–Wayen watershed is induced by the increase in the occurrence and intensity of events, as a trend towards an increase in persistent drought periods (CDD) is observed. This indicates that the watershed is suffering from water scarcity. Water stress and water-related hazards have a major impact on communities and ecosystems. In these conditions of vulnerability, the development of risk-management strategies related to water resources is necessary, especially at the local scale. This should be formulated in light of observed and projected climate extremes in order to propose an appropriate and anticipated management strategy for climate risks related to water resources at the watershed scale.

Publisher

MDPI AG

Subject

Earth and Planetary Sciences (miscellaneous),Environmental Science (miscellaneous)

Reference69 articles.

1. Field, C.B., Barros, V.R., Dokken, D.J., Mach, K.J., Mastrandrea, M.D., Bilir, T.E., Chatterjee, M., Ebi, K.L., Estrada, Y.O., and Genova, R.C. (2023, January 10). Climate Change 2014: Impacts, Adaptation, and Vulnerability; Part A: Global and Sectoral Aspects, Available online: https://www.ipcc.ch/site/assets/uploads/2018/02/WGIIAR5-PartA_FINAL.pdf.

2. Lee, H., and Romero, J. (2023). Summary for Policymakers, Climate Change 2023: Synthesis Report: A Report of the Intergovernmental Panel on Climate Change, Contribution of Working Groups I, II and III to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change.

3. Banerjee, A., Chen, R., EMeadows, M., Singh, R.B., Mal, S., and Sengupta, D. (2020). An Analysis of Long-Term Rainfall Trends and Variability in the Uttarakhand Himalaya Using Google Earth Engine. Remote Sens., 12.

4. The AMMA-CATCH Gourma observatory site in Mali: Relating climatic variations to changes in vegetation, surface hydrology, fluxes and natural resources;Mougin;J. Hydrol.,2009

5. AMMA-CATCH studies in the Sahelian region of West-Africa: An overview;Lebel;J. Hydrol.,2009

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