Estimation of runoff, sediment discharge and rcognition geomorphometric factors using DTM in Bahadorbeyg Basin

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Arab Saeed; Segar Yasamin; Naderi khorasgani Mehdi; ASADI MOHAMMAD; Kia Parvin

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Journal: WATERSHED ENGINEERING AND MANAGEMENT Year:2020 | Volume:12 | Issue:2 Page(s): 467-480

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Title

Estimation of runoff, sediment discharge and rcognition geomorphometric factors using DTM in Bahadorbeyg Basin

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AHPQ1

ContinuousQ1

Digital mapQ1

Full modelQ1

Sediment indexQ1

Abstract

In a watershed, we can investigate the relationship between geomorphometric factors and Sediment index. Digital Terrain Model (DTM) derived from DEM, has a high ability to receive, process, store, manage and monitor information for a catchment area. With the help of DTM in a watershed we can calculate the Sediment index (power stream, sediment transport and wetness) and some geomorphometric factors such as total length and slope along drainage, length and slope of straight drainage, drop coefficient, sinuosity and downstream elevation and its mapping. Bahadorbeyg Basin with an area of 216. 69 km2 on northern pediment slopes of Alvand in Hamedan Province was selected for this study. First, the drainage rating was managed in DTM and the Sediment index map along with the map of some geomorphometric factors (interpolation method) with four ranks and 30 focus points. Runoff and sediment discharge factors were proposed as a point estimator from the combination of Sediment index with mean runoff and sediment discharge of the hydrometric station. In a complete regression model between Sediment index (dependent variable) and some geomorphometric factors along with partial runoff and sediment discharge (independent variables), statistical relationships were significant at the level of 0. 01 and 0. 025. Results showed that the partial runoff and sediment discharge, the slope along drainage (total and direct), the drainage straight length, the downstream elevation and sinuosity are the most important factors affecting the Sediment index, respectively. Finally, according to a time-series function (23 and 24 years old), the variation trend of runoff discharge had downward pattern in the basin and did not match with sediment discharge.

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APA: Copy

Arab, Saeed, Segar, Yasamin, Naderi khorasgani, Mehdi, ASADI, MOHAMMAD, & Kia, Parvin. (2020). Estimation of runoff, sediment discharge and rcognition geomorphometric factors using DTM in Bahadorbeyg Basin. WATERSHED ENGINEERING AND MANAGEMENT, 12(2 ), 467-480. SID. https://sid.ir/paper/234750/en

Vancouver: Copy

Arab Saeed, Segar Yasamin, Naderi khorasgani Mehdi, ASADI MOHAMMAD, Kia Parvin. Estimation of runoff, sediment discharge and rcognition geomorphometric factors using DTM in Bahadorbeyg Basin. WATERSHED ENGINEERING AND MANAGEMENT[Internet]. 2020;12(2 ):467-480. Available from: https://sid.ir/paper/234750/en

IEEE: Copy

Saeed Arab, Yasamin Segar, Mehdi Naderi khorasgani, MOHAMMAD ASADI, and Parvin Kia, “Estimation of runoff, sediment discharge and rcognition geomorphometric factors using DTM in Bahadorbeyg Basin,” WATERSHED ENGINEERING AND MANAGEMENT, vol. 12, no. 2 , pp. 467–480, 2020, [Online]. Available: https://sid.ir/paper/234750/en

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