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 Spatiotemporal Changes in Rainfall for Use in Dynamic and Distributed Rainfall-Runoff Models

Amir Hossein Parsamehr; Ali Salajegheh; Shahram Khalighi; Khaled Ahmadaali

Volume 77, Issue 1 , April 2024, , Pages 33-49


  Aim: The aim of this study is to propose an approach for modeling spatiotemporal changes in rainfall that can be used as input for rainfall-runoff models.Research Method: To achieve this, rainfall data from four rain gauge stations in the Paskouhak catchment were used. Five parameters, including elevation, ...  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

Analysis of Factors Affecting Resilience of Local Communities in the Face of Climate Fluctuations in Yazd

Reza Bagheri; Mehdi Ghorbani; Shahram Khalighi Sigaroudi; Amir Alambeigi

Volume 74, Issue 2 , September 2021, , Pages 303-321


  Water deficit caused by climate change due to the extent and magnitude of the social and economic damages it causes, is one of the most dangerous natural disasters that causes irreparable damage to the agricultural and water resources of the country. In other words, it has devastating effects on the ...  Read More

Measuring and Prioritizing the Dimensions of Stakeholder's Adaptive Capacity Against Climate Change – Case Study: East of Gonabad City , Khorasan Razavi Province

S.Mahdi Taghipour; Shahram Khalighi Sigaroodi; Amir Alambaigi

Volume 72, Issue 2 , September 2019, , Pages 543-556


  All rural and nomadic communities reside in natural watershed areas and, based on the specific climatic and geological conditions that each catchment area has, they are useful for living. Today, there is a danger to the livelihoods of non-residents as well as climate change caused by human activities, ...  Read More

The Effect of Vegetation Cover on Microclimate in Dry land Ecosystem (Case Study: Sistan Plain)

Farhad Zolfaghari; Hossein Azarnivand; Hassan Khosravi; Gholamreza Zehtabian; Shahram Khalighi Sigaroodi

Volume 71, Issue 4 , March 2019, , Pages 901-914


  Any Changes in a dry land surface ecosystem will be affected by the climate near the ground or microclimate in the vertical plane. In recent decades' wetland drying cause to reduced vegetation significantly. Assessing Zabol synoptic station statistics shown an increased temperature of this place. It ...  Read More

Comparative Study of Frequency Analysis and Hydro-climatic Methods for Estimating Maximum Flood Discharge (Case Study: Bakhtiary Watershed)

Mohammad Bashirgonbad; Alireza Moghaddam Nia; Shahram Khalighi Sigaroodi; Mohammad Mahdavi; Emmanuel Paquet; Michel Lang

Volume 71, Issue 3 , December 2018, , Pages 595-612


  There are many methods for estimating the maximum flood discharge including frequency analysis methods and risk study of hydraulic structures based on flood frequency analysis is often sensitive to the observations and selected statistical distribution that cause errors in design. Since heavy rainfalls ...  Read More

Anticipating of spatial changes trend of land uses based on the cellular automaton-Markov model in Kessillian watershed

M Zare; Aliakbar Nazari Samani; shahram khalighi; javad bazrafshan; mohsen hasan joury

Volume 70, Issue 2 , August 2017, , Pages 373-383


  Land use Changes have recently been increasing due to anthropogenic and climatic factors. Natural resources management critically needs land use maps and simulation of its changes for understanding the interaction and relationship between humans and natural phenomena, as well as for making premium decisions. ...  Read More

Impacts of Large-Scale Climate Signals on Seasonal Rainfall in the Maharlu - Bakhtegan Watershed

bahram choubin; SHahram KHalighi Sigaroodi; Arash Malekian

Volume 69, Issue 1 , June 2016, , Pages 51-63


  Predicting climate trends, especially forecasting rainfall, provides managers of different fields withsuitable tools so that considering these predictions; they can devise future-state policies. At thisstudy, after selecting the most effective climate indices applying PCA method, the effects of largescaleclimate ...  Read More

Drought Monitoring Using Vegetation Index (NDVI) (Case study: Rangelands of Ilam Province)

Leila Fazel Dehkordi; Hossein Azarnivand; Mohammad Ali Zare Chahouki; Farhad Mahmoudi Kohan; Shahram Khalighi Sigaroudi

Volume 69, Issue 1 , June 2016, , Pages 141-154


  To identify an appropriate index for monitoring and evaluation of drought, rainfall data obtainedfrom meteorological stations of Ilam Province from 2000 to 2011 and MODIS satellite images with16-day intervals were collected and processed. The Standardized Precipitation Index (SPI) wascalculated based ...  Read More

Evaluation of Desertification based on climate and water criteria (Case study: Kashan plain)

Reyhaneh Masoudi; Gholamreza Zehtabian; Hassan Ahmadi; Shahram Khalighi sigarudi

Volume 68, Issue 4 , January 2016, , Pages 711-723


  Desertification is a major problem in many countries. International efforts have been considered to combat and prevent this phenomenon. The most important cases of these measures are the United Nations Convention to Combat Desertification. In this study, IMDPA model and GIS were used to assess desertification ...  Read More

Calibration and validation SWMM model in order to simulate urban runoff (Case Study: Imam Ali Town in Mashhad)

Shahram Khalighi Sigarodi; Mohammad Rostami Khalaj; Mohammad Mahdavi; Ali Salajegheh

Volume 68, Issue 3 , October 2015, , Pages 487-498


  Large impervious surfaces and man-made waterways are the characteristic of urban area. Increasing urbanization and rapid growth of cities in recent decades towards the upstream watershed, has been severely affected on rainfall-runoff processes in urban area. Therefore, to computer models in order to ...  Read More

Comparison of Neuro-fuzzy and SCS methods in sub-watersheds prioritization for watershed measures (Case study: Taleghan watershed)

Sadegh Tali-Khoshk; Mohsen Mohseni Saravi; Mahadi Vatakhah; Shahram Khalighi-Sigarodi

Volume 68, Issue 2 , September 2015, , Pages 213-225


  Because of insufficient factors including facilities, budget, human resources as well as time watershed operation is not applicable throughout the basin. As a result, watershed operation should be performed in the sub-basins in which is more affectionate and the risk frequency of some events such as ...  Read More

Spatial variability of rainfall erosivity indices using geostatistics in Khouzestan Province

Hossein Eslami; Ali Salajagheh; Shahram Khalighi sigaroudi; hasan Ahmadi; Shamsollah Ayoubi

Volume 67, Issue 3 , December 2014, , Pages 393-406


  Rainfall erosivity is the ability of rainfall to detach the soil particles. This study was conducted to evaluate spatial variability of rainfall erosivity indices in Khouzestan Province. The point data of indices (EI30, AIm, KE>1 and Onchev indices) in 74 stations were used to generate spatial erosivity ...  Read More

Selection of the best empirical formula to estimate time of concentration in urban watersheds (Case study: Mahdasht town)

ali shahbazi; Shahram khaliqi sygarodi; Arash Malekian; Ali Salajegheh

Volume 67, Issue 3 , December 2014, , Pages 419-435


  In order to decrease the risks associated with the management of urban watersheds, the use of proper methods is an essential task to estimate the runoff with a high degree of confidence. Time of concentration is one of factors that impacts on peak discharge and runoff volume. The objective of this study ...  Read More

Effects of land use changes on flood characteristics using HEC-HMS model (Case study: Taleghan watershed)

Samaneh Razavizadeh; Ali Salajegheh; Shahram Khalighi Sigaroudi; Mohammad Jafari

Volume 66, Issue 3 , November 2013, , Pages 373-386


  Land use change is one of the main factors in the process of changing the regime of flood in watersheds. Taleghan watershed has been subjected to many land use changes over years, which probably effects on flood characteristics of Taleghan River. In present study the effects of land use change on some ...  Read More

Regional flow duration curve in arid regions for ungauged basins (Case study: Central Iran)

Asghar Zare Chahouki; Ali Salajegheh; Mohammad Mahdavi; Sharam Khalighi; Said Asadi

Volume 66, Issue 2 , July 2013, , Pages 251-265


  A flow-duration curve (FDC) illustrates the relationship between the frequency and magnitude of streamflow. Applications of FDC are of interest for many hydrological problems related to hydropower generation, river and reservoir sedimentation, water quality assessment, water-use assessment, water allocation ...  Read More