Climate Change and Sensitivity of Surface Water Resources in the Mekrou Sub-Watershed at the Yakrigourou Outlet (North Benin / West Africa)

Alain Ibikunle Ague; Cyr Gervais Etene; Somiyabalo Pilabina; Ibouraima Yabi

doi:doi:10.11648/j.ijema.20210903.12

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Climate Change and Sensitivity of Surface Water Resources in the Mekrou Sub-Watershed at the Yakrigourou Outlet (North Benin / West Africa)

Alain Ibikunle Ague, Cyr Gervais Etene, Somiyabalo Pilabina, Ibouraima Yabi

Published in International Journal of Environmental Monitoring and Analysis (Volume 9, Issue 3)

Received: 9 April 2021 Accepted: 5 May 2021 Published: 20 May 2021

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Abstract

The present work aims to contribute to a better understanding of the impacts of climate change on the availability of surface water resources in the Mékrou sub-basin at the Yakrigourou outlet in northern Benin. To achieve this objective, descriptive statistical methods were applied to hydro-climatological data. The historical data were taken from the Météo-Bénin database and from the General Directorate of Water in Benin. The simulation data are those of the HadGEM2-ES climate model under the RCP 4.5 and RCP 8.5 scenarios and then at horizons 50 (2041 to 2060) and 70 (2061 to 2080). The results show that the period from 1965 to 2018 is globally characterised by a strong irregularity of rainfall with a decreasing trend and a multiplication of dry years estimated at 54%. In the same way, the runoff decrease about 5.8 m³/s during the decade 2007-2016. Under the most pessimistic scenario (RCP8.5) and compared to the reference period (1971-1990), the HadGEM2-ES model predicts an increase in annual precipitation estimated at 8.29% by 2041-2060 and 13.83% by 2061-2080. As regards temperature, there could be an increase of 2.4°C by 2041-2060 and 3.7°C by 2061-2080. These climatic events affect the availability of surface water resources in the sub-basin.

Published in	International Journal of Environmental Monitoring and Analysis (Volume 9, Issue 3)
DOI	10.11648/j.ijema.20210903.12
Page(s)	60-66
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2021. Published by Science Publishing Group

Keywords

Climate Change, Sensitivity, Water Resources, Mekrou Sub-basin

References

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Alain Ibikunle Ague, Cyr Gervais Etene, Somiyabalo Pilabina, Ibouraima Yabi. (2021). Climate Change and Sensitivity of Surface Water Resources in the Mekrou Sub-Watershed at the Yakrigourou Outlet (North Benin / West Africa). International Journal of Environmental Monitoring and Analysis, 9(3), 60-66. https://doi.org/10.11648/j.ijema.20210903.12

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ACS Style

Alain Ibikunle Ague; Cyr Gervais Etene; Somiyabalo Pilabina; Ibouraima Yabi. Climate Change and Sensitivity of Surface Water Resources in the Mekrou Sub-Watershed at the Yakrigourou Outlet (North Benin / West Africa). Int. J. Environ. Monit. Anal. 2021, 9(3), 60-66. doi: 10.11648/j.ijema.20210903.12

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AMA Style

Alain Ibikunle Ague, Cyr Gervais Etene, Somiyabalo Pilabina, Ibouraima Yabi. Climate Change and Sensitivity of Surface Water Resources in the Mekrou Sub-Watershed at the Yakrigourou Outlet (North Benin / West Africa). Int J Environ Monit Anal. 2021;9(3):60-66. doi: 10.11648/j.ijema.20210903.12

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@article{10.11648/j.ijema.20210903.12,
  author = {Alain Ibikunle Ague and Cyr Gervais Etene and Somiyabalo Pilabina and Ibouraima Yabi},
  title = {Climate Change and Sensitivity of Surface Water Resources in the Mekrou Sub-Watershed at the Yakrigourou Outlet (North Benin / West Africa)},
  journal = {International Journal of Environmental Monitoring and Analysis},
  volume = {9},
  number = {3},
  pages = {60-66},
  doi = {10.11648/j.ijema.20210903.12},
  url = {https://doi.org/10.11648/j.ijema.20210903.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijema.20210903.12},
  abstract = {The present work aims to contribute to a better understanding of the impacts of climate change on the availability of surface water resources in the Mékrou sub-basin at the Yakrigourou outlet in northern Benin. To achieve this objective, descriptive statistical methods were applied to hydro-climatological data. The historical data were taken from the Météo-Bénin database and from the General Directorate of Water in Benin. The simulation data are those of the HadGEM2-ES climate model under the RCP 4.5 and RCP 8.5 scenarios and then at horizons 50 (2041 to 2060) and 70 (2061 to 2080). The results show that the period from 1965 to 2018 is globally characterised by a strong irregularity of rainfall with a decreasing trend and a multiplication of dry years estimated at 54%. In the same way, the runoff decrease about 5.8 m3/s during the decade 2007-2016. Under the most pessimistic scenario (RCP8.5) and compared to the reference period (1971-1990), the HadGEM2-ES model predicts an increase in annual precipitation estimated at 8.29% by 2041-2060 and 13.83% by 2061-2080. As regards temperature, there could be an increase of 2.4°C by 2041-2060 and 3.7°C by 2061-2080. These climatic events affect the availability of surface water resources in the sub-basin.},
 year = {2021}
}

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TY  - JOUR
T1  - Climate Change and Sensitivity of Surface Water Resources in the Mekrou Sub-Watershed at the Yakrigourou Outlet (North Benin / West Africa)
AU  - Alain Ibikunle Ague
AU  - Cyr Gervais Etene
AU  - Somiyabalo Pilabina
AU  - Ibouraima Yabi
Y1  - 2021/05/20
PY  - 2021
N1  - https://doi.org/10.11648/j.ijema.20210903.12
DO  - 10.11648/j.ijema.20210903.12
T2  - International Journal of Environmental Monitoring and Analysis
JF  - International Journal of Environmental Monitoring and Analysis
JO  - International Journal of Environmental Monitoring and Analysis
SP  - 60
EP  - 66
PB  - Science Publishing Group
SN  - 2328-7667
UR  - https://doi.org/10.11648/j.ijema.20210903.12
AB  - The present work aims to contribute to a better understanding of the impacts of climate change on the availability of surface water resources in the Mékrou sub-basin at the Yakrigourou outlet in northern Benin. To achieve this objective, descriptive statistical methods were applied to hydro-climatological data. The historical data were taken from the Météo-Bénin database and from the General Directorate of Water in Benin. The simulation data are those of the HadGEM2-ES climate model under the RCP 4.5 and RCP 8.5 scenarios and then at horizons 50 (2041 to 2060) and 70 (2061 to 2080). The results show that the period from 1965 to 2018 is globally characterised by a strong irregularity of rainfall with a decreasing trend and a multiplication of dry years estimated at 54%. In the same way, the runoff decrease about 5.8 m3/s during the decade 2007-2016. Under the most pessimistic scenario (RCP8.5) and compared to the reference period (1971-1990), the HadGEM2-ES model predicts an increase in annual precipitation estimated at 8.29% by 2041-2060 and 13.83% by 2061-2080. As regards temperature, there could be an increase of 2.4°C by 2041-2060 and 3.7°C by 2061-2080. These climatic events affect the availability of surface water resources in the sub-basin.
VL  - 9
IS  - 3
ER  -

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Author Information

Alain Ibikunle Ague

Multidisciplinary Doctoral School "Spaces, Cultures and Development", University of Abomey-Calavi, Godomey, Benin
Cyr Gervais Etene

Pierre PAGNEY Laboratory on Climate, Water, Ecosystem and Development, Department of Geography and Land Management, University of Abomey-Calavi, Godomey, Benin
Somiyabalo Pilabina

Laboratory of Research on Spaces, Exchanges and Human Security (LaREESH), Department of Geography, University of Lome, Lome, Togo
Ibouraima Yabi

Pierre PAGNEY Laboratory on Climate, Water, Ecosystem and Development, Department of Geography and Land Management, University of Abomey-Calavi, Godomey, Benin

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Alain Ibikunle Ague, Cyr Gervais Etene, Somiyabalo Pilabina, Ibouraima Yabi. (2021). Climate Change and Sensitivity of Surface Water Resources in the Mekrou Sub-Watershed at the Yakrigourou Outlet (North Benin / West Africa). International Journal of Environmental Monitoring and Analysis, 9(3), 60-66. https://doi.org/10.11648/j.ijema.20210903.12

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ACS Style

Alain Ibikunle Ague; Cyr Gervais Etene; Somiyabalo Pilabina; Ibouraima Yabi. Climate Change and Sensitivity of Surface Water Resources in the Mekrou Sub-Watershed at the Yakrigourou Outlet (North Benin / West Africa). Int. J. Environ. Monit. Anal. 2021, 9(3), 60-66. doi: 10.11648/j.ijema.20210903.12

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AMA Style

Alain Ibikunle Ague, Cyr Gervais Etene, Somiyabalo Pilabina, Ibouraima Yabi. Climate Change and Sensitivity of Surface Water Resources in the Mekrou Sub-Watershed at the Yakrigourou Outlet (North Benin / West Africa). Int J Environ Monit Anal. 2021;9(3):60-66. doi: 10.11648/j.ijema.20210903.12

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@article{10.11648/j.ijema.20210903.12,
  author = {Alain Ibikunle Ague and Cyr Gervais Etene and Somiyabalo Pilabina and Ibouraima Yabi},
  title = {Climate Change and Sensitivity of Surface Water Resources in the Mekrou Sub-Watershed at the Yakrigourou Outlet (North Benin / West Africa)},
  journal = {International Journal of Environmental Monitoring and Analysis},
  volume = {9},
  number = {3},
  pages = {60-66},
  doi = {10.11648/j.ijema.20210903.12},
  url = {https://doi.org/10.11648/j.ijema.20210903.12},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijema.20210903.12},
  abstract = {The present work aims to contribute to a better understanding of the impacts of climate change on the availability of surface water resources in the Mékrou sub-basin at the Yakrigourou outlet in northern Benin. To achieve this objective, descriptive statistical methods were applied to hydro-climatological data. The historical data were taken from the Météo-Bénin database and from the General Directorate of Water in Benin. The simulation data are those of the HadGEM2-ES climate model under the RCP 4.5 and RCP 8.5 scenarios and then at horizons 50 (2041 to 2060) and 70 (2061 to 2080). The results show that the period from 1965 to 2018 is globally characterised by a strong irregularity of rainfall with a decreasing trend and a multiplication of dry years estimated at 54%. In the same way, the runoff decrease about 5.8 m3/s during the decade 2007-2016. Under the most pessimistic scenario (RCP8.5) and compared to the reference period (1971-1990), the HadGEM2-ES model predicts an increase in annual precipitation estimated at 8.29% by 2041-2060 and 13.83% by 2061-2080. As regards temperature, there could be an increase of 2.4°C by 2041-2060 and 3.7°C by 2061-2080. These climatic events affect the availability of surface water resources in the sub-basin.},
 year = {2021}
}

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TY  - JOUR
T1  - Climate Change and Sensitivity of Surface Water Resources in the Mekrou Sub-Watershed at the Yakrigourou Outlet (North Benin / West Africa)
AU  - Alain Ibikunle Ague
AU  - Cyr Gervais Etene
AU  - Somiyabalo Pilabina
AU  - Ibouraima Yabi
Y1  - 2021/05/20
PY  - 2021
N1  - https://doi.org/10.11648/j.ijema.20210903.12
DO  - 10.11648/j.ijema.20210903.12
T2  - International Journal of Environmental Monitoring and Analysis
JF  - International Journal of Environmental Monitoring and Analysis
JO  - International Journal of Environmental Monitoring and Analysis
SP  - 60
EP  - 66
PB  - Science Publishing Group
SN  - 2328-7667
UR  - https://doi.org/10.11648/j.ijema.20210903.12
AB  - The present work aims to contribute to a better understanding of the impacts of climate change on the availability of surface water resources in the Mékrou sub-basin at the Yakrigourou outlet in northern Benin. To achieve this objective, descriptive statistical methods were applied to hydro-climatological data. The historical data were taken from the Météo-Bénin database and from the General Directorate of Water in Benin. The simulation data are those of the HadGEM2-ES climate model under the RCP 4.5 and RCP 8.5 scenarios and then at horizons 50 (2041 to 2060) and 70 (2061 to 2080). The results show that the period from 1965 to 2018 is globally characterised by a strong irregularity of rainfall with a decreasing trend and a multiplication of dry years estimated at 54%. In the same way, the runoff decrease about 5.8 m3/s during the decade 2007-2016. Under the most pessimistic scenario (RCP8.5) and compared to the reference period (1971-1990), the HadGEM2-ES model predicts an increase in annual precipitation estimated at 8.29% by 2041-2060 and 13.83% by 2061-2080. As regards temperature, there could be an increase of 2.4°C by 2041-2060 and 3.7°C by 2061-2080. These climatic events affect the availability of surface water resources in the sub-basin.
VL  - 9
IS  - 3
ER  -

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