Flood Hazard and Risk Area Identification: A Case of Gelana River Watershed, Southern Ethiopia

Wendafiraw Abdisa Gemmechis; Daba Biru Leta; Hindesa Danisa Bunda

doi:doi:10.11648/j.ijema.20231101.11

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Flood Hazard and Risk Area Identification: A Case of Gelana River Watershed, Southern Ethiopia

Wendafiraw Abdisa Gemmechis, Daba Biru Leta, Hindesa Danisa Bunda

Published in International Journal of Environmental Monitoring and Analysis (Volume 11, Issue 1)

Received: 3 October 2022 Accepted: 26 December 2022 Published: 6 February 2023

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Abstract

Floods are among the most devastating natural disasters in the world, claiming more lives and causing more damage to properties than any other natural phenomena. This study specifies flood hazard areas as well as flood risk areas of Gelana River Watershed. It specifically aims to investigate factors that create good conditions for flood hazard, generate flood hazard and risk areas from environmental and socio-economic factors using integration of Multi-Criteria Evaluation (MCE) and Geospatial Techniques. The research was conducted using quantitative research approach. Therefore, slope, elevation, soil type, land use land cover (LULC), and drainage density were the environmental factors developed for the generation of flood hazard. In addition, flood hazard, LULC and population data factors were developed to generate flood risk areas of Gelana river watershed. As the result, flood hazard map reveals 64.68, 1769.48, 1345.38, 244.37, 10.73 square kilometers of Gelana river watershed, is subjected to very high, high, moderate, low and very low flood hazardous respectively. It is revealed that 46.52% of the watershed has very high to high flood risk. The rest 47.20%, 6.24%, and 0.05% of the study area has medium, low and very low flood risk respectively. Therefore, the area incorporated under very high and high hazardous and risk areas are located around the Main River and lower course of the watershed.

Published in	International Journal of Environmental Monitoring and Analysis (Volume 11, Issue 1)
DOI	10.11648/j.ijema.20231101.11
Page(s)	1-14
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), 2024. Published by Science Publishing Group

Keywords

Flood, Hazard, Risk, Gelana River Watershed, Flood Hazard and Risk, Southern Region, Vulnerable and Livelihoods

References

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[10]	Yirga, W. K., Flood Hazard and Risk Assessment Using GIS and Remote Sensing in Lower Awash Sub-basin, Ethiopia. Journal of Environment and Earth Science www.iiste.org, 2016. 6 (9).
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[12]	Morgan, P. R., Soil Erosion and Conservation. 1995.
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[19]	Deepak, S., R. Gopika, and G. P. Jairaj, Geospatial approach for assessment of vulnerability to flood in local self-governments. Geo-environmental Disasters, 2020.
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APA Style

Wendafiraw Abdisa Gemmechis, Daba Biru Leta, Hindesa Danisa Bunda. (2023). Flood Hazard and Risk Area Identification: A Case of Gelana River Watershed, Southern Ethiopia. International Journal of Environmental Monitoring and Analysis, 11(1), 1-14. https://doi.org/10.11648/j.ijema.20231101.11

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ACS Style

Wendafiraw Abdisa Gemmechis; Daba Biru Leta; Hindesa Danisa Bunda. Flood Hazard and Risk Area Identification: A Case of Gelana River Watershed, Southern Ethiopia. Int. J. Environ. Monit. Anal. 2023, 11(1), 1-14. doi: 10.11648/j.ijema.20231101.11

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AMA Style

Wendafiraw Abdisa Gemmechis, Daba Biru Leta, Hindesa Danisa Bunda. Flood Hazard and Risk Area Identification: A Case of Gelana River Watershed, Southern Ethiopia. Int J Environ Monit Anal. 2023;11(1):1-14. doi: 10.11648/j.ijema.20231101.11

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@article{10.11648/j.ijema.20231101.11,
  author = {Wendafiraw Abdisa Gemmechis and Daba Biru Leta and Hindesa Danisa Bunda},
  title = {Flood Hazard and Risk Area Identification: A Case of Gelana River Watershed, Southern Ethiopia},
  journal = {International Journal of Environmental Monitoring and Analysis},
  volume = {11},
  number = {1},
  pages = {1-14},
  doi = {10.11648/j.ijema.20231101.11},
  url = {https://doi.org/10.11648/j.ijema.20231101.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijema.20231101.11},
  abstract = {Floods are among the most devastating natural disasters in the world, claiming more lives and causing more damage to properties than any other natural phenomena. This study specifies flood hazard areas as well as flood risk areas of Gelana River Watershed. It specifically aims to investigate factors that create good conditions for flood hazard, generate flood hazard and risk areas from environmental and socio-economic factors using integration of Multi-Criteria Evaluation (MCE) and Geospatial Techniques. The research was conducted using quantitative research approach. Therefore, slope, elevation, soil type, land use land cover (LULC), and drainage density were the environmental factors developed for the generation of flood hazard. In addition, flood hazard, LULC and population data factors were developed to generate flood risk areas of Gelana river watershed. As the result, flood hazard map reveals 64.68, 1769.48, 1345.38, 244.37, 10.73 square kilometers of Gelana river watershed, is subjected to very high, high, moderate, low and very low flood hazardous respectively. It is revealed that 46.52% of the watershed has very high to high flood risk. The rest 47.20%, 6.24%, and 0.05% of the study area has medium, low and very low flood risk respectively. Therefore, the area incorporated under very high and high hazardous and risk areas are located around the Main River and lower course of the watershed.},
 year = {2023}
}

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TY  - JOUR
T1  - Flood Hazard and Risk Area Identification: A Case of Gelana River Watershed, Southern Ethiopia
AU  - Wendafiraw Abdisa Gemmechis
AU  - Daba Biru Leta
AU  - Hindesa Danisa Bunda
Y1  - 2023/02/06
PY  - 2023
N1  - https://doi.org/10.11648/j.ijema.20231101.11
DO  - 10.11648/j.ijema.20231101.11
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  - 1
EP  - 14
PB  - Science Publishing Group
SN  - 2328-7667
UR  - https://doi.org/10.11648/j.ijema.20231101.11
AB  - Floods are among the most devastating natural disasters in the world, claiming more lives and causing more damage to properties than any other natural phenomena. This study specifies flood hazard areas as well as flood risk areas of Gelana River Watershed. It specifically aims to investigate factors that create good conditions for flood hazard, generate flood hazard and risk areas from environmental and socio-economic factors using integration of Multi-Criteria Evaluation (MCE) and Geospatial Techniques. The research was conducted using quantitative research approach. Therefore, slope, elevation, soil type, land use land cover (LULC), and drainage density were the environmental factors developed for the generation of flood hazard. In addition, flood hazard, LULC and population data factors were developed to generate flood risk areas of Gelana river watershed. As the result, flood hazard map reveals 64.68, 1769.48, 1345.38, 244.37, 10.73 square kilometers of Gelana river watershed, is subjected to very high, high, moderate, low and very low flood hazardous respectively. It is revealed that 46.52% of the watershed has very high to high flood risk. The rest 47.20%, 6.24%, and 0.05% of the study area has medium, low and very low flood risk respectively. Therefore, the area incorporated under very high and high hazardous and risk areas are located around the Main River and lower course of the watershed.
VL  - 11
IS  - 1
ER  -

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Author Information

Wendafiraw Abdisa Gemmechis

Department of Geography and Environmental Studies, College of Social Science and Humanities, Bule Hora University, Bule Hora, Ethiopia
Daba Biru Leta

Department of Geography and Environmental Studies, College of Social Science and Humanities, Bule Hora University, Bule Hora, Ethiopia
Hindesa Danisa Bunda

West Guji Zone Busa Gonofa Office, Bule Hora, Ethiopia

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APA Style

Wendafiraw Abdisa Gemmechis, Daba Biru Leta, Hindesa Danisa Bunda. (2023). Flood Hazard and Risk Area Identification: A Case of Gelana River Watershed, Southern Ethiopia. International Journal of Environmental Monitoring and Analysis, 11(1), 1-14. https://doi.org/10.11648/j.ijema.20231101.11

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ACS Style

Wendafiraw Abdisa Gemmechis; Daba Biru Leta; Hindesa Danisa Bunda. Flood Hazard and Risk Area Identification: A Case of Gelana River Watershed, Southern Ethiopia. Int. J. Environ. Monit. Anal. 2023, 11(1), 1-14. doi: 10.11648/j.ijema.20231101.11

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AMA Style

Wendafiraw Abdisa Gemmechis, Daba Biru Leta, Hindesa Danisa Bunda. Flood Hazard and Risk Area Identification: A Case of Gelana River Watershed, Southern Ethiopia. Int J Environ Monit Anal. 2023;11(1):1-14. doi: 10.11648/j.ijema.20231101.11

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@article{10.11648/j.ijema.20231101.11,
  author = {Wendafiraw Abdisa Gemmechis and Daba Biru Leta and Hindesa Danisa Bunda},
  title = {Flood Hazard and Risk Area Identification: A Case of Gelana River Watershed, Southern Ethiopia},
  journal = {International Journal of Environmental Monitoring and Analysis},
  volume = {11},
  number = {1},
  pages = {1-14},
  doi = {10.11648/j.ijema.20231101.11},
  url = {https://doi.org/10.11648/j.ijema.20231101.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijema.20231101.11},
  abstract = {Floods are among the most devastating natural disasters in the world, claiming more lives and causing more damage to properties than any other natural phenomena. This study specifies flood hazard areas as well as flood risk areas of Gelana River Watershed. It specifically aims to investigate factors that create good conditions for flood hazard, generate flood hazard and risk areas from environmental and socio-economic factors using integration of Multi-Criteria Evaluation (MCE) and Geospatial Techniques. The research was conducted using quantitative research approach. Therefore, slope, elevation, soil type, land use land cover (LULC), and drainage density were the environmental factors developed for the generation of flood hazard. In addition, flood hazard, LULC and population data factors were developed to generate flood risk areas of Gelana river watershed. As the result, flood hazard map reveals 64.68, 1769.48, 1345.38, 244.37, 10.73 square kilometers of Gelana river watershed, is subjected to very high, high, moderate, low and very low flood hazardous respectively. It is revealed that 46.52% of the watershed has very high to high flood risk. The rest 47.20%, 6.24%, and 0.05% of the study area has medium, low and very low flood risk respectively. Therefore, the area incorporated under very high and high hazardous and risk areas are located around the Main River and lower course of the watershed.},
 year = {2023}
}

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TY  - JOUR
T1  - Flood Hazard and Risk Area Identification: A Case of Gelana River Watershed, Southern Ethiopia
AU  - Wendafiraw Abdisa Gemmechis
AU  - Daba Biru Leta
AU  - Hindesa Danisa Bunda
Y1  - 2023/02/06
PY  - 2023
N1  - https://doi.org/10.11648/j.ijema.20231101.11
DO  - 10.11648/j.ijema.20231101.11
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  - 1
EP  - 14
PB  - Science Publishing Group
SN  - 2328-7667
UR  - https://doi.org/10.11648/j.ijema.20231101.11
AB  - Floods are among the most devastating natural disasters in the world, claiming more lives and causing more damage to properties than any other natural phenomena. This study specifies flood hazard areas as well as flood risk areas of Gelana River Watershed. It specifically aims to investigate factors that create good conditions for flood hazard, generate flood hazard and risk areas from environmental and socio-economic factors using integration of Multi-Criteria Evaluation (MCE) and Geospatial Techniques. The research was conducted using quantitative research approach. Therefore, slope, elevation, soil type, land use land cover (LULC), and drainage density were the environmental factors developed for the generation of flood hazard. In addition, flood hazard, LULC and population data factors were developed to generate flood risk areas of Gelana river watershed. As the result, flood hazard map reveals 64.68, 1769.48, 1345.38, 244.37, 10.73 square kilometers of Gelana river watershed, is subjected to very high, high, moderate, low and very low flood hazardous respectively. It is revealed that 46.52% of the watershed has very high to high flood risk. The rest 47.20%, 6.24%, and 0.05% of the study area has medium, low and very low flood risk respectively. Therefore, the area incorporated under very high and high hazardous and risk areas are located around the Main River and lower course of the watershed.
VL  - 11
IS  - 1
ER  -

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