Volume 15 (2023)
Volume 14 (2022)
Volume 13 (2021)
Volume 12 (2020)
Volume 11 (2019)
Volume 10 (2018)
Volume 9 (2017)
Volume 8 (2016)
Volume 7 (2015)
Volume 6 (2014)
Volume 5 (2013)
Volume 4 (2012)
Volume 3 (2011)
Volume 2 (2010)
Volume 1 (2009)
Effects of Climate Change on Vegetation Phenology of Urmia Lake Basin Using AVHRR Time Series Data

farzaneh hadadi; Davod Ashourloo; Alireza Shakiba; Aliakbar Matkan

Articles in Press, Accepted Manuscript, Available Online from 17 April 2021


  Climate change is one of the most important challenges facing mankind. This phenomenon has already had significant impacts on agricultural products in most parts of the world, especially arid and semiarid regions. Also, average temperature has risen in many regions in recent decades. Nowadays, in various ...  Read More

Analysis of Sentinel- 2 Satellite Images to Estimate Leaf Area Index of Corn Crops

Maedeh Behifar; Hossein Aghighi; Aliakbar Matkan; Hamid Salehi shahrabi

Volume 15, Issue 1 , February 2023, , Pages 1-15


  Leaf area index (LAI) derived from remotely sensed images is considered as an important index for spatial modelling of vegetation productivity. Traditionally, the spectral vegetation indices (VIs) derived from the red (R) and near infrared (NIR) reflectance values have been utilized to statistically ...  Read More

Employing the Convolutional LSTM Network in Crop Classification using NDVI Time Series

Mohammad Reza Gili; Davoud Ashourloo; Hossein Aghighi; Ali Akbar Matkan; Alireza Shakiba

Volume 14, Issue 1 , June 2022, , Pages 89-106


  Changes in crop growth at relatively short intervals, asymmetry of cultivation of similar crops, the spectral similarity between different crops at certain times of the growing season, and lack of ground data make classifying crops in satellite imagery a challenging task. Changing the amount of canopy ...  Read More

The Access to the City's Rail Transport Network Using the Gini Index and Curve Lorenz in Horizon 2031

َAliakbar Matkan; Aliraze Vafaeinezhad; Iman Baharloo; Ahmad Khademolhoseini

Volume 13, Issue 1 , May 2021, , Pages 117-132


  One of the most important modes of public transport is the metro transport network, which has a significant impact on reducing traffic and air pollution. On the other hand, due to the exorbitant costs of setting up the metro network, step-by-step development with the operation of one line and the implementation ...  Read More

Investigation of the saturation effect of vegetation indices in LAI estimation of crops

Maedeh Behifar; Mohsen Azadbakht; Farzaneh Hadadi; AliAkbar Matkan

Volume 11, Issue 1 , May 2019, , Pages 33-48


  Vegetation indices are used to estimate vegetation parameters from satellite images. Despite their capabilities, performance of some vegetation indices decreases in high vegetation densities, making them inappropriate for estimation of the desired parameters. Vegetation indices are saturated in alfalfa ...  Read More

Evaluation of Ecotourism Effects on Rudbar-e Qasran and Lavasanat Zone Using the DPSIR Framework

Jamileh Tavakkoli-nia; Aliakbar Matkan; Mozaffar Sarrafi,; faezeh borbori

Volume 10, Issue 1 , June 2018, , Pages 109-126

  Ecotourism is a part of the tourism industry that has attracted the attention of many officials and people in recent years and it is one of the levers of economic and social development of many developed and developing countries. Since the non-systematic activity of the ecotourism can negatively affect ...  Read More

Evaluation of Vegetation Indices to Recognizing Wheat Leaf and Yellow Rust at Canopy Scale

D Ashourloo; H Aghighi; A.A Matkan; H Nematollahi

Volume 9, Issue 4 , May 2017, , Pages 111-128

  Wheat rust is one of the important diseases of cereal crops in Iran and other countries in the world which imposes irreparable damages to the agricultural economy. In this study, the effects of the leaf and yellow rust disease on wheat leaves reflectance were studied. For this purpose, various vegetation ...  Read More

Designing a Multi-objective Optimization Model of Land Use, based on Genetic Algorithms (Case study: Kerman- Rodbar Watershed)
Volume 7, Issue 1 , December 2015, , Pages 39-57

  With the increase in population and consequent increasing needs of society, land use planning is of particular importance. Land use planningdue to being involved with several conflicting aims, multi- objective evolutionary algorithm would be a useful tool to solve land use planning. But use of these ...  Read More

M.Sc of RS & GIS, Shahid Beheshti University

Ali akbar Matkan; Babak Mirbagheri; Abbas Beigi; Mostafa Ghiyasvand

Volume 7, Issue 4 , November 2015, , Pages 1-12

  Researchers have always been looking for better ways to develop the design, operation and implementationofwater distribution networks in GIS.Despite,extensivegeographical potentials of GIS,however, it cannot be independently considered as a spatial decision support system (SDSS) for management of this ...  Read More

Detection of earthquake damaged buildings in satellite images using texture analysis and Very High Resolution (VHR) A case study of the 2010 earthquake in Port-au-Prince

Ali Akbar Matkan; Babak Mansouri; Babak Mirbagheri; Fariba Karbalaei

Volume 7, Issue 3 , November 2015, , Pages 17-32

  Earthquake is one of the most destructive natural disasters which frequently occurs with different intensities. Earthquakes cause severe damage to buildings, main roads and most importantly, loss of life. Detection of damaged buildings caused by such an event at the right time is a critical issue for ...  Read More

Automatic Gap Filling in Road Extraction Using Radon Transformation and Spline Interpolation

A.A Matkan; M Hajeb; M Eslami

Volume 7, Issue 2 , November 2015, , Pages 19-34

  The availability ofinformation about roads has great importanceinvariousapplicationssuch as transportation,traffic controlsystems, automatic navigation system, etc. In recent years, designing new road extraction algorithms has become the target of many studies by researchers. Despite the achieved progress, ...  Read More

Runoff Estimation Using Artificial Neural Network Method
Volume 6, Issue 4 , October 2014

  Runoff is one of the major components of calculating water resource processes and is the main issue in hydrology. Many concept models are used to predict the amount of runoff, which in most cases depend on topographical and hydrological data. Conventional models are not appropriate for areas in which ...  Read More

Calculation of Local and Spatial Uncertainty of Precipitation Using Geostatistical SGS and CO-SGS Simulation Algorithms
Volume 6, Issue 3 , October 2014

  Among the usual interpolation methods, kriging and co-kriging are frequently used in the interpolation of precipitation data as one the best linear unbiased estimators, Despite these advantages, there models show smoothness representation and because they are based on regional averages of the data, they ...  Read More

Assessment and Optimization of Salomonson Etal Method for Snow Cover Estimation in Karaj and Latyan Basins
Volume 6, Issue 2 , August 2014

  The purpose of presenting this paper is to determine the snow covered area on Karaj and Latyan basins using MODIS Images, and evaluating Salomonson et al method which is applied in this study. The importance of snow cover_ Such as its impact on radiation budget, water balance and modeling_ has led to ...  Read More