Impact of identical digital elevation model resolution and sources on morphometric parameters of Tena watershed, Ethiopia

Digital elevation models (DEMs) are the primary form of satellite data used to design and analyze the hydrology and hydraulic behavior of watersheds for water resource development. The primary objective of this study is to conduct morphometric parameter analysis using SRTM30m, ASTER30m, and ALOS30m...

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Autor principal:	Tesfu Abebe Tesema
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	DEM Morphometry SRTM30m ASTER30m ALOS30m Tena watershed Science (General) Q1-390 Social sciences (General) H1-99
Acceso en línea:	https://doaj.org/article/ba0b9ea772e24e6998f57a9362a436a3
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spelling	oai:doaj.org-article:ba0b9ea772e24e6998f57a9362a436a32021-12-02T05:02:45ZImpact of identical digital elevation model resolution and sources on morphometric parameters of Tena watershed, Ethiopia2405-844010.1016/j.heliyon.2021.e08345https://doaj.org/article/ba0b9ea772e24e6998f57a9362a436a32021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2405844021024488https://doaj.org/toc/2405-8440Digital elevation models (DEMs) are the primary form of satellite data used to design and analyze the hydrology and hydraulic behavior of watersheds for water resource development. The primary objective of this study is to conduct morphometric parameter analysis using SRTM30m, ASTER30m, and ALOS30m data to determine the impact of identical DEM resolution and DEM sources on the Tena watershed by computing the basic and derived parameters. In this study I used data from two sources for morphometric parameter analysis with ArcGIS software. The results indicate that the DEM sources did not provide similar results for all parameters: ASTER30m was the maximum output for almost all parameters, followed by SRTM30m and ALOS30m. The findings of this study suggest that ASTER30m is the most suitable data source for flood risk assessment, soil erosion, sediment, streamflow, and other watershed modelling, while ALOS30m is best suited for peak discharge analysis. All of the used DEM sources were suitable for computing watershed shape parameters. In general, the resolution of DEMs impacts the hydrological and hydraulic study of any watershed, with resulting effects on decision-making for watershed management and development.Tesfu Abebe TesemaElsevierarticleDEMMorphometrySRTM30mASTER30mALOS30mTena watershedScience (General)Q1-390Social sciences (General)H1-99ENHeliyon, Vol 7, Iss 11, Pp e08345- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	DEM Morphometry SRTM30m ASTER30m ALOS30m Tena watershed Science (General) Q1-390 Social sciences (General) H1-99
spellingShingle	DEM Morphometry SRTM30m ASTER30m ALOS30m Tena watershed Science (General) Q1-390 Social sciences (General) H1-99 Tesfu Abebe Tesema Impact of identical digital elevation model resolution and sources on morphometric parameters of Tena watershed, Ethiopia
description	Digital elevation models (DEMs) are the primary form of satellite data used to design and analyze the hydrology and hydraulic behavior of watersheds for water resource development. The primary objective of this study is to conduct morphometric parameter analysis using SRTM30m, ASTER30m, and ALOS30m data to determine the impact of identical DEM resolution and DEM sources on the Tena watershed by computing the basic and derived parameters. In this study I used data from two sources for morphometric parameter analysis with ArcGIS software. The results indicate that the DEM sources did not provide similar results for all parameters: ASTER30m was the maximum output for almost all parameters, followed by SRTM30m and ALOS30m. The findings of this study suggest that ASTER30m is the most suitable data source for flood risk assessment, soil erosion, sediment, streamflow, and other watershed modelling, while ALOS30m is best suited for peak discharge analysis. All of the used DEM sources were suitable for computing watershed shape parameters. In general, the resolution of DEMs impacts the hydrological and hydraulic study of any watershed, with resulting effects on decision-making for watershed management and development.
format	article
author	Tesfu Abebe Tesema
author_facet	Tesfu Abebe Tesema
author_sort	Tesfu Abebe Tesema
title	Impact of identical digital elevation model resolution and sources on morphometric parameters of Tena watershed, Ethiopia
title_short	Impact of identical digital elevation model resolution and sources on morphometric parameters of Tena watershed, Ethiopia
title_full	Impact of identical digital elevation model resolution and sources on morphometric parameters of Tena watershed, Ethiopia
title_fullStr	Impact of identical digital elevation model resolution and sources on morphometric parameters of Tena watershed, Ethiopia
title_full_unstemmed	Impact of identical digital elevation model resolution and sources on morphometric parameters of Tena watershed, Ethiopia
title_sort	impact of identical digital elevation model resolution and sources on morphometric parameters of tena watershed, ethiopia
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/ba0b9ea772e24e6998f57a9362a436a3
work_keys_str_mv	AT tesfuabebetesema impactofidenticaldigitalelevationmodelresolutionandsourcesonmorphometricparametersoftenawatershedethiopia
_version_	1718400733574856704

Impact of identical digital elevation model resolution and sources on morphometric parameters of Tena watershed, Ethiopia

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