Watershed Grouping Based on Effective Parameters on Base Flow Using Different Clustering Algorithms in Ardabil Province
Author(s):
Abstract:
Grouping of similar watersheds using clustering methods helps to explain hydrological processes and regional water yields. In the present study, the daily discharge, base flow and Base Flow Index (BFI) and effective parameters including annual rainfall and physiographic characteristics (Area, Mean elevation, main stream length and drainage density) were analyzed using K-means and Hierarchical clustering algorithms over 22 sub-watersheds to determine the homogeneous groups in Ardabil Province. The Davies- Bouldin Index criterion was used to determine the optimal number of clusters over the study area. The base flow amount were separated from daily flow hydrographs by using One-Parameter algorithm through Excel programming. Then, the BFI values were calculated using the ratio of base flow and total amount of runoff. This K-means algorithm aims to find groups (clusters) of similar watersheds from a data set. Firstly, the watersheds were classified based on base flow and BFI and then other variables were used to cluster the studied watersheds. According to the results of K-Means clustering method considering base flow discharge the number of watersheds in first three groups were 4, 3 and 15, respectively. According to the results, the K-Means clustering methods detailed groups of watersheds compared with the Hierarchical method. Watershed grouping based on base flow and base flow index showed that the Arbabkandi and Gilandeh falls into a cluster, and Doostbeiglou, Pole-almas, Samian and Firozabad had similar characteristics. In general the Aladizgeh, Ahmadkandi and Baroogh watersheds had similar hydrologic response in terms of base flow, BFI and other physiographic and land-use related factors and classified into same group. Therefore, the homogeneous watersheds in terms of surface water and base flow variations had similar water yield and ecological flow behavior. Water resources planning and management of watersheds can be considered in homogeneous regions as planning unit.
Keywords:
Language:
Persian
Published:
Journal of Extension and Development of Watershed Managment, Volume:4 Issue: 15, 2017
Page:
31
https://www.magiran.com/p1664755
سامانه نویسندگان
اطلاعات نویسنده(گان) توسط ایشان ثبت و تکمیل شدهاست. برای مشاهده مشخصات و فهرست همه مطالب، صفحه رزومه را ببینید.
مقالات دیگری از این نویسنده (گان)
-
A review on effects of facilitators in seed germination of range species in ecological zones of Iran
Parvin Rokhforoz, *, Mehdi Moameri, Zeinab Hazbavi
Journal of Rangeland Science, Summer 2024 -
Effect of facilitators on enhancement of seed germination, seedling growth and establishment in some plant species
Parvin Rokhforoz, *, Masoomeh Abbasi Khalaki, Mehdi Moameri, Sudabeh Gharemahmoodli, Zeinab Hazbavi
Journal of Rangeland Science, Winter 2025 -
Assessment and prioritization of the Water Security Index (WSI) in the Qarasu watershed sub-basins in Ardabil province
Fariba Esfandyari Darabad *, Behrouz Nezafat Takle,
Journal of Sustainable Urban and Regional Development Studies, Spring 2026 -
Analyzing the lateral changes of Aras River channel in Ardabil province using morphological indicators
Fariba Esfandyari Darabad, Sayyad Asghari Saraskanroud, Mehdi Ghandaiasl, *
Journal of Rs and Gis for natural Resources, Winter 2025 -
Determining the forest fire susceptibility map in the Astara city using the Analytical Hierarchy Process (AHP) and Frequency Ratio Model (FR)
*, Mohammad Golshan, Roghayeh Jahdi
Iranian Journal of Forest and Range Protection Research, -
Scenario-based land use management to restore natural areas and reducing soil erosion rate in a competing land uses condition
Khadijeh Haji, Abazar Esmali-Ouri *, ,, Habib Nazarnejad
Anthropogenic Pollution Journal, Summer and Autumn 2024