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)
Development of fuzzy water quality index in qualitative evaluation of water upstream and downstream of Mahabad reservoir dam

Shiva Saffarinia; Hirad Abghari; Mahdi Erfanian

Volume 73, Issue 3 , December 2020, , Pages 525-540


  All water quality indicators have a definite answer for the water quality of the stations. The use of fuzzy inference system has eliminated the limitation of the definiteness of the answers and the lack of consideration of the parameters of water quality determination from the standards. In this paper, ...  Read More

Changes Detection of Mahrloo Lake Level and it's Surrounding Landuse in the period 1381-1394

mohsen kazemi; sadegh naji; Sadat Feiznia; Hassan Khosravi

Volume 72, Issue 3 , December 2019, , Pages 831-842


  One of the strategies to achieve sustainable management of lakes and wetlands is change detection of lakes, wetlands and their surrounding landuses during the specific time periods. In this research, the satellite images from 1381 to 1394 applying geometric and atmospheric corrections were used in order ...  Read More

Modeling of Geometrical characteristics of gully erosion (Case study: Ilam province)

ghobad rostamizad; ali salageghe; ali akbar nazari samani; jamal ghodoosi

Volume 71, Issue 4 , March 2019, , Pages 915-928


  One of the types of water erosion and land degradation which causes imbalance, is the gully erosion phenomenon. Land degradation, a broken ecological balance of the land and landscape and risk of falling at biological resources in these areas, the study of the gully, is inevitable and necessary especially ...  Read More

Groundwater Level Prediction of Boukan Plain using Fuzzy Logic, Random Forest and Neural Network Models

hossein norouzi; ataallah nadiri

Volume 71, Issue 3 , December 2018, , Pages 829-845


  123 Groundwater system studies to understanding its behavior, requires the exploratory drilling wells, pumping test and geophysical experiments, which can carried out with most cost. For this reason, simulation of groundwater flows by mathematical and computer models, which is an indirect method to ...  Read More

Spatial Prioritization of Flood Mitigation and Soil Erosion Control Practices Using Fuzzy Logic Approach )Case Study: Foorg Watershed(

Morteza Dehghani; Hosein Ghasemi; Arash Malekian

Volume 66, Issue 1 , April 2013, , Pages 73-88


  Nowadays, watershed management practices are undertaken based on selective criteria and/or a specific purpose such as a decrease in flood risk, soil erosion and the like. In this respect,fuzzy logic has the ability to manage a wide range of options for decision making. This researchaimed to use the fuzzy ...  Read More

Performance of fuzzy logic in stream flow forecasting

M. Nabizadeh; A. Mosaedi; A. A. Dehghani

Volume 65, Issue 4 , March 2013, , Pages 569-580


  River flow forecasting for a region has a special and important role for optimal allocation of water resources. In this research, for forecasting river flow process, Fuzzy Inference System (FIS) is used. Three parameters including precipitation, temperature and daily discharge are used for forecasting ...  Read More

Estimation of the suspended sediment loud of Karaj River using fuzzy logic and neural networks

A. Salajegheh; A. Fathabadi

Volume 62, Issue 2 , October 2009, , Pages 271-282

  Correct estimation of suspended sediment transported by a river is an important practice in water structure design, environmental problems and water quality issues. Conventionally, sediment rating curve used for suspended sediment estimation in rivers. In this method discharge and sediment discharge ...  Read More

Modeling river suspended load using fuzzy logic approach (Case study: Zanjanroud Basin)

B. Motamedvaziri; H. Ahmadi; M. Mahdavi; F. Sharifi; N. Javaheri

Volume 62, Issue 2 , October 2009, , Pages 283-298

  Estimation of river sediment load is one of the most important issues in design of hydraulic structures, investigating water quality, conserving fish habitat, estimating erosion and determining watershed management effects. There are two methods for estimating sediment load: empirical and hydrological ...  Read More