Estimation of river bank erosion and effective factors in Polealmas-Gilande reach, Balkhlochai River in Ardabil

Abazar Esmali Ouri; Shokrollah Asghari; Arezoo Eshaghzadeh; Raoof Mostafazadeh

Articles in Press, Accepted Manuscript, Available Online from 13 July 2024


  Determining the extent of riverbank erosion and displaying it as a map in a GIS environment is effective in the optimal management of water and soil resources. The aim of the current research is to delineate the riverbank erosion zone from aerial photographs, perform regression modeling, and identify ...  Read More

Investigating changes in the hydrological flow regime and the environmental flow component of EFCs in Khiauchai River in a 30-year period

hasan Setayeshi Nasaz; sayyad Asghari Saraskanrood; Raoof Mostafazadeh; Aghil Madadi

Volume 10, Issue 37 , January 2024, , Pages 43-25


  Rivers are very important in terms of human uses and ecological functions. In the present research, the environmental flow components of the Khiavchai River have been determined. Therefore, changes in the EFCs were determined using IHA software. According to the results, the values of low flows were ...  Read More

Relationship of Vegetation and Geomorphic Indices with Erosion and Sediment Rates in Koozeh Topraghi Watershed

Mousa Abedini; Sajjad Javadi; Raoof Mostafazadeh; AmirHesam Pasban

Volume 9, Issue 32 , November 2022, , Pages 128-105


  Today, soil erosion is one of the major problems of watersheds and agricultural areas and natural resources, which causes land degradation and decreases soil fertility. Therefore, the purpose of this study is to investigate the relationship between vegetation and geomorphic indices with the values of ...  Read More

Assessment of Spatial Heterogeneity of Hydro-sedimentological Disturbance Index in the Samian sub-watersheds

Vahideh Moradzadeh; Zeinab Hazbavi; Abazar Esmali Ouri; Raoof Mostafazadeh; Shirin Zarei; Nazila Alaei

Volume 9, Issue 31 , August 2022, , Pages 136-117


  Ecological indicators have become important tools for evaluating and monitoring natural resources. Understanding the relationship between biological activities and ecological interactions is essential to their structure. On the other hand, human activities have significant effects on landscape evolution ...  Read More

Effective Factors in Ground Water Variations and Water Table Decrease in Ardabil Plain

Sina Ziaye Shendershami; Abazar Esmali Ouri; Raoof Mostafazadeh; Ardavan Ghorbani

Volume 8, Issue 28 , December 2021, , Pages 127-143


  The aim of this study was to investigate the factors affecting the decrease and change of groundwater level in Ardabil plain in two periods 1995 to 2005 and 2005 to 2015. The monthly precipitation data of Ardebil, Nir, Namin, Abi baglo, Hir, Samiyan stations in the Ardabil plain during the statistical ...  Read More

Investigating the Effects of Geological Formations on the Runoff and Sediment Yield Using Rainfall Simulator in Gharehshiran Watershed, Ardabil

Ebrahim Asgari; abazar esmali; Raoof Mostafazadeh; Gholamreza Ahmadzadeh

Volume 7, Issue 22 , June 2020, , Pages 177-103


  1- Introduction The comparison of different geological formations in term of sediment yield is one of the most important issues in many soil and water conservation studies. Moreover, the measurement of runoff production rate and sediment production is the prerequisite of watershed management. The potential ...  Read More

Streamflow Response to Rainfall Changes Using the Climate Elasticity Index in Some Watersheds of Ardabil Province

Ali Nasiri Khiavi; Ali Faraji; Raoof Mostafazadeh

Volume 6, Issue 21 , March 2020, , Pages 1-22

  1- IntroductionDetermining the sensitivity of streamflow to climate is necessary to make informed decisions to manage water resources and environmental systems for predicting hydro-climatic variability and climate change. Climate variability is considered as a key driver of hydrological processes. The ...  Read More

The Analysis of the Changes of the Hydrological Flow Indices Affected by Dam Construction in Zarrinehrood and Saruqchai Rivers of West Azerbaijan Province

Fariba Esfandyari Darabad; Raoof Mostafazadeh; Reza Shahmoradi; Ali Nasiri Khiavi

Volume 6, Issue 18 , June 2019, , Pages 57-77

  IntroductionThe ease of the use of river water resources has led to an extensive exploitation and, thus, the alteration flow regime. Although human manipulation on the river flows has social benefits, it alters natural ecosystems and threatens biodiversity by changing natural flow regimes. Hydrological ...  Read More

Spatio-Temporal Assessment of River Flow Discharge Variability Indices in Some Watersheds of Ardabil Province

Raoof Mostafazadeh; Ali Nasiri khiavi

Volume 5, Issue 17 , March 2019, , Pages 23-44

  Abstract Introduction The analysis of the temporal and spatial variations of surface runoff is one of the important issues in hydrology, water and soil resources management, and environmental science. Variability is an intrinsic component of environmental factors and elements. Today, the study of changes ...  Read More

Assessing the Eiciency of Arc-CN Runoff Tool in Runoff Estimation and its Comparison in 1996 and 2011 Years in Haraz Watershed, Mazandaran Province

Naser Ahmadi Sani; Karim Solaimani; Lida Razaghnia; Raoof Mostafazadeh; Jalal Zandi

Volume 5, Issue 16 , December 2018, , Pages 139-158

  Abstract Introduction Due to population growth and human activities and increasing water demand, water availability will be critical and water resource assessment and planning for sustainable use become more complex. The dynamic and long-term laws of runoff are important and have practical value for ...  Read More

The Monthly Changes of Surface Runoff Intensity and Concentration in the Gorgan-Roud River, Golestan Province

Khadijeh Haji; Shahnaz Mirzaei; Raoof Mostafazadeh; Habib Nazarnejad

Volume 4, Issue 13 , March 2018, , Pages 121-146

  Extended Abstract Considering the relative stability of the physical characteristics of a watershed, the variability of the precipitation over space and time, and the direct relationship between rainfall and runoff, the variations of runoff can be expected and analyzed to understand the nature of variability. ...  Read More