Flood Plain Mapping and Hazard Assessment of Muga River by Using ArcGIS and HEC-RAS Model Upper Blue Nile Ethiopia

Solomon Bogale Aynalem

doi:doi:10.11648/j.larp.20200504.13

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Flood Plain Mapping and Hazard Assessment of Muga River by Using ArcGIS and HEC-RAS Model Upper Blue Nile Ethiopia

Solomon Bogale Aynalem

Published in Landscape Architecture and Regional Planning (Volume 5, Issue 4)

Received: 16 September 2020 Accepted: 29 September 2020 Published: 23 November 2020

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Abstract

Flood happens repeatedly and is a common phenomenon in Ethiopia causing a lot of losses to human lives as well as damage to property. The majority of flood disasters’ victims are people living in and nearby stretch of floodplains. It results direct or indirect loss of agricultural productivity, infrastructure, and disruption of transportation access and services. The objective of this study was to analyze flood inundation area mapping and Hazard Assessment of Muga River. Flood generating factors, i.e. slope, elevation, rainfall, drainage density, land use, and soil type were rated and combined to delineate flood hazard zones using a multi-criteria evaluation technique in an ArcGIS environment. The flooded areas along the Muga River have been mapped based on highest flows for different return periods using the HEC-RAS model, ArcGIS for spatial data processing and HEC-GeoRAS for interfacing between HEC-RAS and ArcGIS. The areas along the Muga River simulated to be inundated for 5, 10, 25, 50 and 100 years return periods. The flooded areas along the Muga River are 18 km2, 21 km², 26 km², 34 km² and 43 km² for 5, 10, 25, 50 and 100 year return periods, respectively. Proper land use management and afforestation, is significant to reduce the adverse effects of flooding particularly in the low-lying flood prone areas. The result of this study will helps the concerned bodies to formulate develop strategies according to the available flood plain mapping and hazard to the area.

Published in	Landscape Architecture and Regional Planning (Volume 5, Issue 4)
DOI	10.11648/j.larp.20200504.13
Page(s)	74-85
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), 2020. Published by Science Publishing Group

Keywords

Muga River, ArcGIS, HEC_RAS, HEC_GeoRAS

References

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APA Style

Solomon Bogale Aynalem. (2020). Flood Plain Mapping and Hazard Assessment of Muga River by Using ArcGIS and HEC-RAS Model Upper Blue Nile Ethiopia. Landscape Architecture and Regional Planning, 5(4), 74-85. https://doi.org/10.11648/j.larp.20200504.13

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ACS Style

Solomon Bogale Aynalem. Flood Plain Mapping and Hazard Assessment of Muga River by Using ArcGIS and HEC-RAS Model Upper Blue Nile Ethiopia. Landsc. Archit. Reg. Plan. 2020, 5(4), 74-85. doi: 10.11648/j.larp.20200504.13

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AMA Style

Solomon Bogale Aynalem. Flood Plain Mapping and Hazard Assessment of Muga River by Using ArcGIS and HEC-RAS Model Upper Blue Nile Ethiopia. Landsc Archit Reg Plan. 2020;5(4):74-85. doi: 10.11648/j.larp.20200504.13

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@article{10.11648/j.larp.20200504.13,
  author = {Solomon Bogale Aynalem},
  title = {Flood Plain Mapping and Hazard Assessment of Muga River by Using ArcGIS and HEC-RAS Model Upper Blue Nile Ethiopia},
  journal = {Landscape Architecture and Regional Planning},
  volume = {5},
  number = {4},
  pages = {74-85},
  doi = {10.11648/j.larp.20200504.13},
  url = {https://doi.org/10.11648/j.larp.20200504.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.larp.20200504.13},
  abstract = {Flood happens repeatedly and is a common phenomenon in Ethiopia causing a lot of losses to human lives as well as damage to property. The majority of flood disasters’ victims are people living in and nearby stretch of floodplains. It results direct or indirect loss of agricultural productivity, infrastructure, and disruption of transportation access and services. The objective of this study was to analyze flood inundation area mapping and Hazard Assessment of Muga River. Flood generating factors, i.e. slope, elevation, rainfall, drainage density, land use, and soil type were rated and combined to delineate flood hazard zones using a multi-criteria evaluation technique in an ArcGIS environment. The flooded areas along the Muga River have been mapped based on highest flows for different return periods using the HEC-RAS model, ArcGIS for spatial data processing and HEC-GeoRAS for interfacing between HEC-RAS and ArcGIS. The areas along the Muga River simulated to be inundated for 5, 10, 25, 50 and 100 years return periods. The flooded areas along the Muga River are 18 km2, 21 km2, 26 km2, 34 km2 and 43 km2 for 5, 10, 25, 50 and 100 year return periods, respectively. Proper land use management and afforestation, is significant to reduce the adverse effects of flooding particularly in the low-lying flood prone areas. The result of this study will helps the concerned bodies to formulate develop strategies according to the available flood plain mapping and hazard to the area.},
 year = {2020}
}

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TY  - JOUR
T1  - Flood Plain Mapping and Hazard Assessment of Muga River by Using ArcGIS and HEC-RAS Model Upper Blue Nile Ethiopia
AU  - Solomon Bogale Aynalem
Y1  - 2020/11/23
PY  - 2020
N1  - https://doi.org/10.11648/j.larp.20200504.13
DO  - 10.11648/j.larp.20200504.13
T2  - Landscape Architecture and Regional Planning
JF  - Landscape Architecture and Regional Planning
JO  - Landscape Architecture and Regional Planning
SP  - 74
EP  - 85
PB  - Science Publishing Group
SN  - 2637-4374
UR  - https://doi.org/10.11648/j.larp.20200504.13
AB  - Flood happens repeatedly and is a common phenomenon in Ethiopia causing a lot of losses to human lives as well as damage to property. The majority of flood disasters’ victims are people living in and nearby stretch of floodplains. It results direct or indirect loss of agricultural productivity, infrastructure, and disruption of transportation access and services. The objective of this study was to analyze flood inundation area mapping and Hazard Assessment of Muga River. Flood generating factors, i.e. slope, elevation, rainfall, drainage density, land use, and soil type were rated and combined to delineate flood hazard zones using a multi-criteria evaluation technique in an ArcGIS environment. The flooded areas along the Muga River have been mapped based on highest flows for different return periods using the HEC-RAS model, ArcGIS for spatial data processing and HEC-GeoRAS for interfacing between HEC-RAS and ArcGIS. The areas along the Muga River simulated to be inundated for 5, 10, 25, 50 and 100 years return periods. The flooded areas along the Muga River are 18 km2, 21 km2, 26 km2, 34 km2 and 43 km2 for 5, 10, 25, 50 and 100 year return periods, respectively. Proper land use management and afforestation, is significant to reduce the adverse effects of flooding particularly in the low-lying flood prone areas. The result of this study will helps the concerned bodies to formulate develop strategies according to the available flood plain mapping and hazard to the area.
VL  - 5
IS  - 4
ER  -

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Author Information

Solomon Bogale Aynalem

Department of Hydraulic and Water Resources Engineering, Debre Markos University, Debre Markos, Ethiopia

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APA Style

Solomon Bogale Aynalem. (2020). Flood Plain Mapping and Hazard Assessment of Muga River by Using ArcGIS and HEC-RAS Model Upper Blue Nile Ethiopia. Landscape Architecture and Regional Planning, 5(4), 74-85. https://doi.org/10.11648/j.larp.20200504.13

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ACS Style

Solomon Bogale Aynalem. Flood Plain Mapping and Hazard Assessment of Muga River by Using ArcGIS and HEC-RAS Model Upper Blue Nile Ethiopia. Landsc. Archit. Reg. Plan. 2020, 5(4), 74-85. doi: 10.11648/j.larp.20200504.13

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AMA Style

Solomon Bogale Aynalem. Flood Plain Mapping and Hazard Assessment of Muga River by Using ArcGIS and HEC-RAS Model Upper Blue Nile Ethiopia. Landsc Archit Reg Plan. 2020;5(4):74-85. doi: 10.11648/j.larp.20200504.13

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@article{10.11648/j.larp.20200504.13,
  author = {Solomon Bogale Aynalem},
  title = {Flood Plain Mapping and Hazard Assessment of Muga River by Using ArcGIS and HEC-RAS Model Upper Blue Nile Ethiopia},
  journal = {Landscape Architecture and Regional Planning},
  volume = {5},
  number = {4},
  pages = {74-85},
  doi = {10.11648/j.larp.20200504.13},
  url = {https://doi.org/10.11648/j.larp.20200504.13},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.larp.20200504.13},
  abstract = {Flood happens repeatedly and is a common phenomenon in Ethiopia causing a lot of losses to human lives as well as damage to property. The majority of flood disasters’ victims are people living in and nearby stretch of floodplains. It results direct or indirect loss of agricultural productivity, infrastructure, and disruption of transportation access and services. The objective of this study was to analyze flood inundation area mapping and Hazard Assessment of Muga River. Flood generating factors, i.e. slope, elevation, rainfall, drainage density, land use, and soil type were rated and combined to delineate flood hazard zones using a multi-criteria evaluation technique in an ArcGIS environment. The flooded areas along the Muga River have been mapped based on highest flows for different return periods using the HEC-RAS model, ArcGIS for spatial data processing and HEC-GeoRAS for interfacing between HEC-RAS and ArcGIS. The areas along the Muga River simulated to be inundated for 5, 10, 25, 50 and 100 years return periods. The flooded areas along the Muga River are 18 km2, 21 km2, 26 km2, 34 km2 and 43 km2 for 5, 10, 25, 50 and 100 year return periods, respectively. Proper land use management and afforestation, is significant to reduce the adverse effects of flooding particularly in the low-lying flood prone areas. The result of this study will helps the concerned bodies to formulate develop strategies according to the available flood plain mapping and hazard to the area.},
 year = {2020}
}

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TY  - JOUR
T1  - Flood Plain Mapping and Hazard Assessment of Muga River by Using ArcGIS and HEC-RAS Model Upper Blue Nile Ethiopia
AU  - Solomon Bogale Aynalem
Y1  - 2020/11/23
PY  - 2020
N1  - https://doi.org/10.11648/j.larp.20200504.13
DO  - 10.11648/j.larp.20200504.13
T2  - Landscape Architecture and Regional Planning
JF  - Landscape Architecture and Regional Planning
JO  - Landscape Architecture and Regional Planning
SP  - 74
EP  - 85
PB  - Science Publishing Group
SN  - 2637-4374
UR  - https://doi.org/10.11648/j.larp.20200504.13
AB  - Flood happens repeatedly and is a common phenomenon in Ethiopia causing a lot of losses to human lives as well as damage to property. The majority of flood disasters’ victims are people living in and nearby stretch of floodplains. It results direct or indirect loss of agricultural productivity, infrastructure, and disruption of transportation access and services. The objective of this study was to analyze flood inundation area mapping and Hazard Assessment of Muga River. Flood generating factors, i.e. slope, elevation, rainfall, drainage density, land use, and soil type were rated and combined to delineate flood hazard zones using a multi-criteria evaluation technique in an ArcGIS environment. The flooded areas along the Muga River have been mapped based on highest flows for different return periods using the HEC-RAS model, ArcGIS for spatial data processing and HEC-GeoRAS for interfacing between HEC-RAS and ArcGIS. The areas along the Muga River simulated to be inundated for 5, 10, 25, 50 and 100 years return periods. The flooded areas along the Muga River are 18 km2, 21 km2, 26 km2, 34 km2 and 43 km2 for 5, 10, 25, 50 and 100 year return periods, respectively. Proper land use management and afforestation, is significant to reduce the adverse effects of flooding particularly in the low-lying flood prone areas. The result of this study will helps the concerned bodies to formulate develop strategies according to the available flood plain mapping and hazard to the area.
VL  - 5
IS  - 4
ER  -

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