Assessment of the impacts of different Digital Elevation Models on runoff and suspended sediment estimations using SWAT model, case study: Galikesh Watershed, Golestan Province

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

MORADI AYYUB; NAJAFI NEJAD ALI; OWNEGH MAJID; Komaki Choghi Bairam

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: WATERSHED ENGINEERING AND MANAGEMENT Year:2019 | Volume:11 | Issue:1 Page(s): 62-75

Download Full-Text

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Verion

View:

613

Download:

Cites:

Information Journal Paper

Title

Assessment of the impacts of different Digital Elevation Models on runoff and suspended sediment estimations using SWAT model, case study: Galikesh Watershed, Golestan Province

Author(s)

MORADI AYYUB | NAJAFI NEJAD ALI | OWNEGH MAJID | Komaki Choghi Bairam | Issue Writer Certificate

Keywords

DEMQ2

RunoffQ2

Semi-distributedQ1

SimulationQ1

SUFI2 methodQ1

Suspended sedimentQ1

SWAT–CUP softwareQ1

Abstract

Simulation of Runoff and sediment in watersheds require different modelling approaches, each provided for certain condition. Semi-distributed hydrological model (SWAT model) is one of the most widely used modelling approaches in this context. Among the most important spatial information needed by SWAT model, is the map of Digital Elevation Model (DEM) which plays an important role in the model results for the exploration of hydrographic properties of watersheds, estimation of the spatial distribution of Runoff and sediment load and its accuracy. The aim of this study was to evaluate the effect of different DEM on Runoff and Suspended sediment in Galikesh Watershed, Golestan Province. For this purpose, three types of DEM with the spatial resolutions of 30, 90 and 1000 meters were selected and for a period of 27 years, SWAT model was implemented. The SWAT-CUP software and SUFI2 method were used for the model calibration and validation. Nash-Sutcliffe (NS) criterion for discharge and in the calibration phase (1990-2007) for the resolutions of 30, 90 and 1, 000 meters, was obtained 0. 63, 0. 63 and 0. 62, respectively, and for Suspended sediment was obtained 0. 69, 0. 68 and 0. 67, respectively which is considered satisfactory, given the presumed numerical ranges acquired from the previous studies. The amounts of watershed annual Runoff for the resolutions of 30, 90 and 1000 meters, were 11. 23, 11. 30 and 11. 39, respectively. The results showed that the use of different types of DEM would result in essentially similar results in Runoff and sediment estimations, although changes in Suspended sediment was slightly overestimated. This is attributable to the inverse modelling logic and lack of considering the parameters which arise directly from the DEM map. In conclusion, due to data limitations in the SWAT model calibration, the DEM used to simulate the Runoff did not have much impact on Runoff and sediment estimations.

Cites

No record.

References

No record.

Cite

APA: Copy

MORADI, AYYUB, NAJAFI NEJAD, ALI, OWNEGH, MAJID, & Komaki, Choghi Bairam. (2019). Assessment of the impacts of different Digital Elevation Models on runoff and suspended sediment estimations using SWAT model, case study: Galikesh Watershed, Golestan Province. WATERSHED ENGINEERING AND MANAGEMENT, 11(1 ), 62-75. SID. https://sid.ir/paper/234788/en

Vancouver: Copy

MORADI AYYUB, NAJAFI NEJAD ALI, OWNEGH MAJID, Komaki Choghi Bairam. Assessment of the impacts of different Digital Elevation Models on runoff and suspended sediment estimations using SWAT model, case study: Galikesh Watershed, Golestan Province. WATERSHED ENGINEERING AND MANAGEMENT[Internet]. 2019;11(1 ):62-75. Available from: https://sid.ir/paper/234788/en

IEEE: Copy

AYYUB MORADI, ALI NAJAFI NEJAD, MAJID OWNEGH, and Choghi Bairam Komaki, “Assessment of the impacts of different Digital Elevation Models on runoff and suspended sediment estimations using SWAT model, case study: Galikesh Watershed, Golestan Province,” WATERSHED ENGINEERING AND MANAGEMENT, vol. 11, no. 1 , pp. 62–75, 2019, [Online]. Available: https://sid.ir/paper/234788/en

Related Journal Papers