Preparing hydrologic DEM and its application to produce a accumulated flow map (A Case study at Upstream of Karkheh dam)

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.

Hessari Bezad; Karimzadgan Sajjad

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

Journal Paper

Paper Information

Journal: Iranian Journal of Remote Sensing & GIS Year:2019 | Volume:10 | Issue:4 Page(s): 00-00

Download Full-Text

View:

122

Download:

Cites:

Information Journal Paper

Title

Preparing hydrologic DEM and its application to produce a accumulated flow map (A Case study at Upstream of Karkheh dam)

Author(s)

Hessari Bezad | Karimzadgan Sajjad | Issue Writer Certificate

Keywords

cellular hydrology

hydrological DEM

runoff map

continuous flow map

Karkheh river basin

Abstract

Digital elevation model (DEM) reconditioning methods are being used to improve its quality to be used in simulation and cellular hydrological modeling. In this paper, methods of improving DEM and creating “ Hydrologic DEM” with using the ArcHydro1302 extention were studied and also evaluated in 40 subbasins of Karkheh river basin(KRB) and one of its applications in “ accumulation runoff map” was implemented. Streamflow information is available at hydrometric stations as points but for determining the amount of river discharge continually at any point along the river and branches, it is needed to accumulate the runoff map. The 9 direction method (D9) is the basic model for river network delineation from DEM accumulated cells. In this algorithm, the flow of each cell pours to one of the eight adjacent cells in the "hydrologic DEM ". In hydrologic DEM the accumulated cells in the river line forward to the downstream increase continuously. With "Agree algorithm" and with trial and error the DEM improved and the upstream area of accumulation cells, have been compared with a vector area in each subbasin which correlation coefficient was 308894. After preparing runoff map of the basin, accumulation flow(accumulated runoff map) using a weighted cumulative flow function was created with 233m cell size then the continuous flow map was presented. The results indicate that the error between estimated discharge from accumulated flow map with observed discharge in 40 subbasins varies between 3029 to 001 percent.

Cites

No record.

References

No record.

Cite

APA: Copy

Hessari, Bezad, & Karimzadgan, Sajjad. (2019). Preparing hydrologic DEM and its application to produce a accumulated flow map (A Case study at Upstream of Karkheh dam). REMOTE SENSING & GIS, 10(4 ), 00-00. SID. https://sid.ir/paper/756241/en

Vancouver: Copy

Hessari Bezad, Karimzadgan Sajjad. Preparing hydrologic DEM and its application to produce a accumulated flow map (A Case study at Upstream of Karkheh dam). REMOTE SENSING & GIS[Internet]. 2019;10(4 ):00-00. Available from: https://sid.ir/paper/756241/en

IEEE: Copy

Bezad Hessari, and Sajjad Karimzadgan, “Preparing hydrologic DEM and its application to produce a accumulated flow map (A Case study at Upstream of Karkheh dam),” REMOTE SENSING & GIS, vol. 10, no. 4 , pp. 00–00, 2019, [Online]. Available: https://sid.ir/paper/756241/en

Related Journal Papers

No record.

Related Seminar Papers

No record.

Related Plans

No record.

Recommended Workshops