Volume 77 (2024)
Volume 76 (2023)
Volume 75 (2022)
Volume 74 (2021)
Volume 73 (2020)
Volume 72 (2019)
Volume 71 (2018)
Volume 70 (2017)
Volume 69 (2016)
Volume 68 (2015)
Volume 67 (2014)
Volume 66 (2013)
Volume 65 (2012)
Volume 63 (2010)
Volume 62 (2009)
Regional flood analysis by random forest method in the Namak Lake basin

Saeid Khosrobeigi Bozchelui; Arash Malekian; Alireza Moghaddam Nia; Shahra,m Khalighi

Volume 77, Issue 1 , April 2024, , Pages 1-15


  Flood is one of the most devastating natural disasters, causing financial and human losses each year. At the same time, many rivers in Iran's watersheds lack complete and accurate statistics and information. On the other hand, estimating the flow of floods is one of the most important factors for the ...  Read More

Modeling future changes in climate parameters of precipitation and temperature in Semirom watershed

Maryam Asadi; Arash Malekian; Ali Salajegheh

Volume 76, Issue 3 , November 2023, , Pages 271-286


  GCM models are widely used to assess climate change on a global scale, but outputs of these models are not sufficient and accurate to assess climate change at local and regional levels. Therefore, in this study, SDSM model was used for micro-scaling of CanESM2 model data and climate conditions of Semirom ...  Read More

Zoning of Hydrogeological Drought Severity in Arid Regions and It’s Relaion with Meteorological Drought(case study: Garmsar Plain)

Zahra Noori; Arash Malekian

Volume 76, Issue 2 , August 2023, , Pages 103-114


  Groundwater is important water resource supply, especially in arid and semi- arid regions. Increased utilization of the ground water aquifer leads to significant reduction in the storage of reservoirs. This study evaluates the hydrogeological drought in Garmsar plain using Groundwater Resource Index ...  Read More

Statistical Comparison of Daily Satellite Precipitation Data in Middle Alborz

Esmatullah Ghaljaee; Shahram Khalighi-Sigaroodi; Alireza Moghaddam Nia; Arash Malekian

Volume 76, Issue 1 , June 2023, , Pages 1-14


  Reliable estimation of precipitation is one of the most essential needs in water resources management. However, in many parts of the world, especially in Iran, the lack of time and place of rainfall data is very noticeable. Therefore, the use of satellite information is one of the ways to compensate ...  Read More

Flood potential assessment of the Kan basin using morphometric pharameters

Mehrnoosh Ghadimi; Nadia Hajihasani; Arash Malekian; Ebrahim Moghimi

Volume 75, Issue 4 , January 2023, , Pages 539-551


  Sub-basin prioritization and morphometric characterization analysis is one of the efficient and low-cost tools in identifying flood hazards. The purpose of this study is to Prioritize the flood potential of watershed sub-basins using morphometric parameters, combines of model statistical correlation ...  Read More

Evaluation of Spatial and Temporal Variability of the several datasets for precipitation over Iranian watersheds

Maryam Rostami; Ali Salajegheh; Forood Sharifi; Arash Malekian; TAYYEBEH MESBAHZADEH

Volume 75, Issue 2 , September 2022, , Pages 181-196


  AbstractPrecipitation plays an important role in climatic, water, energy and biogeochemical cycles. Several global and regional data sets currently provide historical estimates of this variable over Iran, including the MWEP and WFDEI forcing datasets and production of some institutions such as MOHC, ...  Read More

The Effects of Drought on Vegetation Using using satellite remote sensing and meteorological data (Case study: Qazvin plain)

Setareh Bagheri; Reza Tamartash; Mohammad Jafari; Mohammad Reza Tatian; Arash Malekian

Volume 75, Issue 1 , June 2022, , Pages 1-18


  Plain ecosystem is highly vulnerable to environmental changes, and drought is the most famous ecosystem change driver that is difficult to identify after its occurrence. In this research, to study the slope of vegetation changes against drought, the NDVI index of MODIS images and the SPI index from 2001 ...  Read More

Simulation and prediction of climatic components of maximum and minimum temperature using CanESM2 model output in future periods, Case study ؛ Meyme plain, Isfahan province

Sahar Zakeri Anaraki; Gholamreza Zehtabian; Hassan Khosravi; Hossein Azarnivand; Arash Malekian

Volume 74, Issue 2 , September 2021, , Pages 359-372


  Intergovernmental Panel on Climate Change report shows that the world average temperature has increased to 0.6 ° C ± 0.2 ° C in the twentieth century. Therefore, long-term prediction of climate variables and the consideration of measures to mitigate the adverse effects of climate change ...  Read More

Environmental flow requirements of Karaj River’s sub-watersheds using Flow Duration Curve and Indicators of Hydrological Alteration

sahebe Karimi; Sharareh Pourebrahim; Ali Salajegheh; Arash Malekian; Michael Strauch; martin volk; felix witing

Volume 74, Issue 2 , September 2021, , Pages 393-405


  Environmental flow (EF) is the quantity, quality and timing of water needed for ensuring the sustainability of aquatic ecosystems. The Karaj River is one of the five protected rivers in Iran. It provides drinking water for the cities of Tehran and Alborz, water needed for agriculture, and is also an ...  Read More

Investigating Vulnerability of Urban Areas to Flood Using TOPSIS Method (Case study: Azimiyeh, Karaj)

mina pouresmaeel; ali salajegheh; Arash Malekian; amirreza keshtkar

Volume 74, Issue 1 , June 2021, , Pages 23-36


  The complexity of the urban environment makes it difficult to consider all the vulnerable components of the urban. Hence, decision-making in urban environments is one of the most important issues in modern management. As a result, the purpose of this study is to investigate the urban vulnerability of ...  Read More

Determining the mode and regime of the water governance in the face of environmental changes from the perspective of institution and local stakeholders

Majid Rahimi; Arash Malekian; Amir Alambeigi

Volume 74, Issue 1 , June 2021, , Pages 81-102


  Water is a source of life, even when it is abundant. In the last few years, the unreal certainty of water services in Iran has caused institutional structures of water to be unsuitable and incompatible with environmental changes, and when water-related crises such as drought, flood occurrence and in ...  Read More

The analysis of structural pattern of inside group social capital of water resources beneficiaries (case study: Doroodzan downstream Watershed, Fars)

jamileh salimi; Ali Salajegheh; Arash Malekian; Abdolmotalleb Rezaei

Volume 73, Issue 3 , December 2020, , Pages 499-511


  Studying human and social dimension in the management of natural resources, including water resources has been accompanied by growth and development during past several decades. So, we require planning and policy making for the sustainable management of water resources for achieving human and ecological ...  Read More

Assessment the instability and land degradation using fuzzy methods, hierarchical analysis and weighted linear combination (Case study: Bakhtegan watershed, Fars)

Mahroo Dehbozorgi; Mohammad Jafari; Arash Malekian; Gholamreza Zehtabian; seyed rashid fallah shamsi

Volume 73, Issue 2 , September 2020, , Pages 321-335


  In Iran, due to arid and semi-arid weather conditions the optimal use of limited water and soil resources has a particular importance. Land degradation is the result of incorrect policies in land management, which is a prominent example in the Bakhtegan watershed. Human factors, as well as climate changes ...  Read More

An Investigation of Social Capital of Beneficiaries toward sustainable Rural Development ( Case study: Telobine village, Mayamey county, Semnan province)

hosein Saemipour; Arash Malekian; Mehdi Ramezan zadeh lasbuei

Volume 73, Issue 2 , September 2020, , Pages 367-377


  Sustainable development will not be realized in any country unless social capital is reinforced. Accordingly, present study made an attempt to measure social capital of local beneficiaries network in traditional boundary of Telobine in Mayamei county, Semnan province through network analysis approach ...  Read More

Prediction of Environmental Health by Using Gene Expression and Bayesian Network Techniques in Taleghan Watershed

payam ebrahimi; Ali Salajegheh; Mohsen Mohseni Saravi; Arash Malekian; Amir Sadoddin

Volume 73, Issue 1 , June 2020, , Pages 1-18


  One of the important criteria for quality of life is the health of the watershed. Researches in this field show that in Iran, a model for assessing the health of the watershed is not prepared. So, In this study, using the statistical data of 27 years (1990-2016) 5 environmental variables in the Taleghan ...  Read More

Evaluating the forest harvesting operations impact on sediment yield in forest watershed (Case study: Kheyrud forest)

saeedeh joriz; Meghdad Jourgholami; arash malekian; maryam etehadi

Volume 72, Issue 3 , December 2019, , Pages 665-681


  Land use changes can significantly affect the hydrology of a forest watershed. Ground cover is important to protect the soil against erosion. Timber harvesting has been changed the canopy cover and forest soil was exposed to the wind and water. Soil compaction and removing the forest floor in the skid ...  Read More

Determining of effective factors on Karstic springs of central Elburze region

Aliakbar Nazari Samani; mahmoud samadi; arash malekian

Volume 72, Issue 3 , December 2019, , Pages 853-863


  For developing of water resources a lot of different factors (such as: geological structure, faults, joints and geomorphological metrics) are important. This research tried to assess the effects of geomorphology on karstic water resources in central Elburz region. Geomorphometrics indices were prepared ...  Read More

Evaluation and Mapping the vulnerability of groundwater to the contamination (Case study: Azhvan- Bisotun carbonate aquifers in Kermanshah)

ali dastranj; ahmad nohegar; Arash Malekian; Hamid gholami

Volume 72, Issue 2 , September 2019, , Pages 375-390


  Abstract Vulnerability assessment and vulnerability mapping, is an important strategy to management of karst water resources. Due to the geomorphology of karst developed in karst aquifers and other natural conditions Azhvan-Bisotun area, Emissions are rapidly and widely. The aim of this study is mapping ...  Read More

The effect of the morphometric factors on the peak flow using the Structural Equation Techniques (PLS) in the Southern Watersheds, Iran

hosien شظهیه; omonabin bazrafshan; Abdolreza Bahremend; Arash Malekian

Volume 71, Issue 3 , December 2018, , Pages 681-697


  The purpose of this study is the effects of the morphometric factors on peak discharge in 108 hydrometric stations in the southern watersheds, Iran. After homogeneous tests and random data, a time period (from 1983-1984 to 2013-2014 was chosen and used to choose the best probability distribution function. ...  Read More

Identification of Vegetation-Vulnerable Areas to Drought Using Remote Sensing (Case study: Boushehr Province)

Fatemeh bahreini; Fatemeh Panahi; Mohammad Jafari; Arash Malekian

Volume 71, Issue 2 , September 2018, , Pages 341-354


  The complexity of drought phenomenon hinders our full understanding of its impact. Field sampling, Geographic Information Systems, SPI and NDVI, EVI and SAVI indices derived from 16-day interval MODIS images during 2000-2015 were used to better understand the effects of drought on vegetation In recent ...  Read More

Effect of land use change and urbanization on runoff peak discharge (Case Study: Zanjan City)

Fatemeh Einloo; Ali Salajegheh; Arash Malekian; Mohsen Ahadnejad

Volume 71, Issue 1 , June 2018, , Pages 205-221


  Urbanization has led to development the impervious surfaces and subsequently changes in urban hydrology. The aim of this study is investigate the effect of land use change and urbanization on the changes of runoff peak discharge in Zanjan City Watershed, Iran. In order to, Landsat Thematic Mapper (TM) ...  Read More

Comparing the performance of Artificial Neural Network (ANN) to predict the long term Meteorological Drought using Climatic Parameters and teleconnection (case study: South of Qazvin Province)

Fatemeh Maghsoud; Mohammad Reza Yazdani; Mohammad Rahimi; Arash Malekian; ali asghar zolfaghari

Volume 70, Issue 4 , January 2018, , Pages 1015-1030


  Overview, drought is effected an unusual dry period which is enough continued and causes imbalance in the hydrologic status, as depletion of surface water and groundwater resources. The purpose of this research is modeling meteorological drought prediction using Neural Network- Multi layer Perceptron, ...  Read More

Effect of various structures and input on the estimation of daily discharge of Amameh watershed

mahboobeh moatamednia; ahmad nohegar; arash malekian; maryam saberi anari

Volume 70, Issue 4 , January 2018, , Pages 1045-1066


  One of the most important of hydrological computing in ecosystem is estimation of the relationship between rainfall and runoff. So that investigation occurred processes in it and the estimate of important outputs such as flood and sediment is considered one the most important mission of a watershed project. ...  Read More

Analysis of the surface water quality parameters in the Aji-Chai Watershed based on the multivariate statistical techniques

majid kazemzadeh; arash malekian

Volume 70, Issue 2 , August 2017, , Pages 465-478


  One of the most important dynamic ecosystems is river, awareness of spatio-temporal water quality changes of which is necessary. In this research, we studied the spatiotemporal water quality changes using three techniques of Cluster analysis (CA), Discriminant analysis (DA) and Principal Component analysis ...  Read More

Evaluating of Efficiency of Empirical Formulae Based on Grain-Size and Infiltration Equations for Estimating Sediment Hydraulic Conductivity (Case Study: Jarmeh Flood Spreading System, Khuzestan Province)

mohammad moazami; Sadat Feiznia; Majid Khayyat Kholghi; Arash Malekian

Volume 70, Issue 1 , June 2017, , Pages 235-246


  Hydraulic conductivity is an important parameter for controling water flow through porous media. Hence, accurate estimation of this parameter is important for evaluating flow exchange between surface water and groundwater. In this study, 12 empirical formulae based on grain-size and 4 infiltration equations ...  Read More