Flood Inundation Mapping and Risk Analysis Case of Finchaa Lake

Jiregna Nugusa Duressa; Motuma Shiferaw Regasa

doi:doi:10.11648/j.ajese.20210503.11

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Flood Inundation Mapping and Risk Analysis Case of Finchaa Lake

Jiregna Nugusa Duressa, Motuma Shiferaw Regasa

Published in American Journal of Environmental Science and Engineering (Volume 5, Issue 3)

Received: 1 July 2021 Accepted: 27 July 2021 Published: 4 August 2021

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Abstract

Mapping Flood inundation is used to inform that the flooding area and also used to guide the administrative to undertake control measurements of flood risks and also used for planning future investments. Some of structures affected by flooding are: crop land, roadways, cultivation land, cattle’s and the like. For this research work Hydraulic models (Hydrologic Engineering Center’s River Analysis System, Geographical Information System tools and Hydrological Engineering Centers for Geographical river analysis system software’s were used for developing flood prone map for different return periods and flood risk analysis. This study is use to develop flood inundation map for flood risk management plan and it helps to give effective and urgent action plan for surrounding community that requires accurate prediction of inundation levels. The research outcome can be used to develop emergency action plan that minimize the flood risk of the area for the lakes based on the flood inundation map developed and used to inform the surrounding community the level of flood and its affect and the research finding will support other researchers to do other analysis over the lake. Geometric data were generated form the Google map using different models. The 100-year return period of annual average flood discharge and probable peak flood have been used for the calculation of hydraulic parameters. The flood risk assessment map delineated over 280 km² shows that where shows very low land area of the lake were affected by flood and it is now important that the concerned body should take immediate measurements. The flood inundation prone area classifies the flooding area into high, medium and low risk areas and from the result the downstream both side of Finchaa Lake highly affected by the flooding. Therefore, the downstream area of the Lake needs immediate solutions by the concerned body, should take immediate action to mitigate such happening.

Published in	American Journal of Environmental Science and Engineering (Volume 5, Issue 3)
DOI	10.11648/j.ajese.20210503.11
Page(s)	53-62
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

DEM, GIS, Google Map, Inundation, HEC-RAS, HEC-GeoRAS, Flood

References

[1]	Kalyanapu AJ, B. S. (2009). Effect of land use-based surface roughness on hydrologic model output. Journal of Civil & Environmental Engineering.
[2]	Kvočka D, F. R. (2015). Appropriate model use for predicting elevation and inundation extene fore extream flood event. Journal of Civil and Environmental Engineering, 79.
[3]	Şen Z, K. H.-H.-A.-B. (2013). Flood inundation map preparation for wadis in arid regions. Journal of Civil and Environmental Engineering, 6.
[4]	Ghanbarpour MR, S. S. (2008). Flood Inundataion Mapping uing hydraulic simulation model in GIS. Journal of Since and Environmental.
[5]	Sterk, B. T. (2008, Feburary). Hydropower-Induced Land Use Change in Finchaa Watershed, Analysis and Impacts. Mountain Reserch and Development, 28 (1): 72-80.2008, 2, 73.
[6]	Brunner, G. W. (2010). HEC-RAS, River Analysis System Hydraulic Reference Manual. United State of America: U.S Army Corps of Engineer.
[7]	Forkuo, E. K. (2011). Flood Hazard Mapping using Aster Image data with GIS. INTERNATIONAL JOURNAL OF GEOMATICS AND GEOSCIENCES, 936.
[8]	Source Ministry of Water, Irrigation and Energy. (1973). design of finchaa dam fesibility study. Addis abeba.
[9]	Gemechu. et al, (2020). Geographic Information System (GIS)-Based multicriteria analysis of flooding hazard and risk in Ambo Town and its watershed, West Shoa Zone, oromia regional State, Ethiopia, Journal of Hydrology.
[10]	Shabnam, M. Z. (2020). Detection of trends in flood magnitude and frequency in Canada, Journal of Hydrology.
[11]	Sina A, R. A. (2010). GIS-based River Flood Hazard Mapping in Urban Area, International Journal of Engineering and Technology.
[12]	Goodell, C. W (2016). Flood Inundation using HEC-RAS, West consultant.

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APA Style

Jiregna Nugusa Duressa, Motuma Shiferaw Regasa. (2021). Flood Inundation Mapping and Risk Analysis Case of Finchaa Lake. American Journal of Environmental Science and Engineering, 5(3), 53-62. https://doi.org/10.11648/j.ajese.20210503.11

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ACS Style

Jiregna Nugusa Duressa; Motuma Shiferaw Regasa. Flood Inundation Mapping and Risk Analysis Case of Finchaa Lake. Am. J. Environ. Sci. Eng. 2021, 5(3), 53-62. doi: 10.11648/j.ajese.20210503.11

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AMA Style

Jiregna Nugusa Duressa, Motuma Shiferaw Regasa. Flood Inundation Mapping and Risk Analysis Case of Finchaa Lake. Am J Environ Sci Eng. 2021;5(3):53-62. doi: 10.11648/j.ajese.20210503.11

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@article{10.11648/j.ajese.20210503.11,
  author = {Jiregna Nugusa Duressa and Motuma Shiferaw Regasa},
  title = {Flood Inundation Mapping and Risk Analysis Case of Finchaa Lake},
  journal = {American Journal of Environmental Science and Engineering},
  volume = {5},
  number = {3},
  pages = {53-62},
  doi = {10.11648/j.ajese.20210503.11},
  url = {https://doi.org/10.11648/j.ajese.20210503.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajese.20210503.11},
  abstract = {Mapping Flood inundation is used to inform that the flooding area and also used to guide the administrative to undertake control measurements of flood risks and also used for planning future investments. Some of structures affected by flooding are: crop land, roadways, cultivation land, cattle’s and the like. For this research work Hydraulic models (Hydrologic Engineering Center’s River Analysis System, Geographical Information System tools and Hydrological Engineering Centers for Geographical river analysis system software’s were used for developing flood prone map for different return periods and flood risk analysis. This study is use to develop flood inundation map for flood risk management plan and it helps to give effective and urgent action plan for surrounding community that requires accurate prediction of inundation levels. The research outcome can be used to develop emergency action plan that minimize the flood risk of the area for the lakes based on the flood inundation map developed and used to inform the surrounding community the level of flood and its affect and the research finding will support other researchers to do other analysis over the lake. Geometric data were generated form the Google map using different models. The 100-year return period of annual average flood discharge and probable peak flood have been used for the calculation of hydraulic parameters. The flood risk assessment map delineated over 280 km2 shows that where shows very low land area of the lake were affected by flood and it is now important that the concerned body should take immediate measurements. The flood inundation prone area classifies the flooding area into high, medium and low risk areas and from the result the downstream both side of Finchaa Lake highly affected by the flooding. Therefore, the downstream area of the Lake needs immediate solutions by the concerned body, should take immediate action to mitigate such happening.},
 year = {2021}
}

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TY  - JOUR
T1  - Flood Inundation Mapping and Risk Analysis Case of Finchaa Lake
AU  - Jiregna Nugusa Duressa
AU  - Motuma Shiferaw Regasa
Y1  - 2021/08/04
PY  - 2021
N1  - https://doi.org/10.11648/j.ajese.20210503.11
DO  - 10.11648/j.ajese.20210503.11
T2  - American Journal of Environmental Science and Engineering
JF  - American Journal of Environmental Science and Engineering
JO  - American Journal of Environmental Science and Engineering
SP  - 53
EP  - 62
PB  - Science Publishing Group
SN  - 2578-7993
UR  - https://doi.org/10.11648/j.ajese.20210503.11
AB  - Mapping Flood inundation is used to inform that the flooding area and also used to guide the administrative to undertake control measurements of flood risks and also used for planning future investments. Some of structures affected by flooding are: crop land, roadways, cultivation land, cattle’s and the like. For this research work Hydraulic models (Hydrologic Engineering Center’s River Analysis System, Geographical Information System tools and Hydrological Engineering Centers for Geographical river analysis system software’s were used for developing flood prone map for different return periods and flood risk analysis. This study is use to develop flood inundation map for flood risk management plan and it helps to give effective and urgent action plan for surrounding community that requires accurate prediction of inundation levels. The research outcome can be used to develop emergency action plan that minimize the flood risk of the area for the lakes based on the flood inundation map developed and used to inform the surrounding community the level of flood and its affect and the research finding will support other researchers to do other analysis over the lake. Geometric data were generated form the Google map using different models. The 100-year return period of annual average flood discharge and probable peak flood have been used for the calculation of hydraulic parameters. The flood risk assessment map delineated over 280 km2 shows that where shows very low land area of the lake were affected by flood and it is now important that the concerned body should take immediate measurements. The flood inundation prone area classifies the flooding area into high, medium and low risk areas and from the result the downstream both side of Finchaa Lake highly affected by the flooding. Therefore, the downstream area of the Lake needs immediate solutions by the concerned body, should take immediate action to mitigate such happening.
VL  - 5
IS  - 3
ER  -

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Author Information

Jiregna Nugusa Duressa

Department of Hydraulic and Water Resource Engineering, Wollega University, Nekemte, Ethiopia
Motuma Shiferaw Regasa

Department of Hydraulic and Water Resource Engineering, Wollega University, Nekemte, Ethiopia

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APA Style

Jiregna Nugusa Duressa, Motuma Shiferaw Regasa. (2021). Flood Inundation Mapping and Risk Analysis Case of Finchaa Lake. American Journal of Environmental Science and Engineering, 5(3), 53-62. https://doi.org/10.11648/j.ajese.20210503.11

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ACS Style

Jiregna Nugusa Duressa; Motuma Shiferaw Regasa. Flood Inundation Mapping and Risk Analysis Case of Finchaa Lake. Am. J. Environ. Sci. Eng. 2021, 5(3), 53-62. doi: 10.11648/j.ajese.20210503.11

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AMA Style

Jiregna Nugusa Duressa, Motuma Shiferaw Regasa. Flood Inundation Mapping and Risk Analysis Case of Finchaa Lake. Am J Environ Sci Eng. 2021;5(3):53-62. doi: 10.11648/j.ajese.20210503.11

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@article{10.11648/j.ajese.20210503.11,
  author = {Jiregna Nugusa Duressa and Motuma Shiferaw Regasa},
  title = {Flood Inundation Mapping and Risk Analysis Case of Finchaa Lake},
  journal = {American Journal of Environmental Science and Engineering},
  volume = {5},
  number = {3},
  pages = {53-62},
  doi = {10.11648/j.ajese.20210503.11},
  url = {https://doi.org/10.11648/j.ajese.20210503.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajese.20210503.11},
  abstract = {Mapping Flood inundation is used to inform that the flooding area and also used to guide the administrative to undertake control measurements of flood risks and also used for planning future investments. Some of structures affected by flooding are: crop land, roadways, cultivation land, cattle’s and the like. For this research work Hydraulic models (Hydrologic Engineering Center’s River Analysis System, Geographical Information System tools and Hydrological Engineering Centers for Geographical river analysis system software’s were used for developing flood prone map for different return periods and flood risk analysis. This study is use to develop flood inundation map for flood risk management plan and it helps to give effective and urgent action plan for surrounding community that requires accurate prediction of inundation levels. The research outcome can be used to develop emergency action plan that minimize the flood risk of the area for the lakes based on the flood inundation map developed and used to inform the surrounding community the level of flood and its affect and the research finding will support other researchers to do other analysis over the lake. Geometric data were generated form the Google map using different models. The 100-year return period of annual average flood discharge and probable peak flood have been used for the calculation of hydraulic parameters. The flood risk assessment map delineated over 280 km2 shows that where shows very low land area of the lake were affected by flood and it is now important that the concerned body should take immediate measurements. The flood inundation prone area classifies the flooding area into high, medium and low risk areas and from the result the downstream both side of Finchaa Lake highly affected by the flooding. Therefore, the downstream area of the Lake needs immediate solutions by the concerned body, should take immediate action to mitigate such happening.},
 year = {2021}
}

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TY  - JOUR
T1  - Flood Inundation Mapping and Risk Analysis Case of Finchaa Lake
AU  - Jiregna Nugusa Duressa
AU  - Motuma Shiferaw Regasa
Y1  - 2021/08/04
PY  - 2021
N1  - https://doi.org/10.11648/j.ajese.20210503.11
DO  - 10.11648/j.ajese.20210503.11
T2  - American Journal of Environmental Science and Engineering
JF  - American Journal of Environmental Science and Engineering
JO  - American Journal of Environmental Science and Engineering
SP  - 53
EP  - 62
PB  - Science Publishing Group
SN  - 2578-7993
UR  - https://doi.org/10.11648/j.ajese.20210503.11
AB  - Mapping Flood inundation is used to inform that the flooding area and also used to guide the administrative to undertake control measurements of flood risks and also used for planning future investments. Some of structures affected by flooding are: crop land, roadways, cultivation land, cattle’s and the like. For this research work Hydraulic models (Hydrologic Engineering Center’s River Analysis System, Geographical Information System tools and Hydrological Engineering Centers for Geographical river analysis system software’s were used for developing flood prone map for different return periods and flood risk analysis. This study is use to develop flood inundation map for flood risk management plan and it helps to give effective and urgent action plan for surrounding community that requires accurate prediction of inundation levels. The research outcome can be used to develop emergency action plan that minimize the flood risk of the area for the lakes based on the flood inundation map developed and used to inform the surrounding community the level of flood and its affect and the research finding will support other researchers to do other analysis over the lake. Geometric data were generated form the Google map using different models. The 100-year return period of annual average flood discharge and probable peak flood have been used for the calculation of hydraulic parameters. The flood risk assessment map delineated over 280 km2 shows that where shows very low land area of the lake were affected by flood and it is now important that the concerned body should take immediate measurements. The flood inundation prone area classifies the flooding area into high, medium and low risk areas and from the result the downstream both side of Finchaa Lake highly affected by the flooding. Therefore, the downstream area of the Lake needs immediate solutions by the concerned body, should take immediate action to mitigate such happening.
VL  - 5
IS  - 3
ER  -

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