علمی - پژوهشی
Comparison of the results of satellite image processing for extraction of alterations with mineralogy and field studies in Sarkuh Porphyry Copper Deposit

Sholeh Malekshahi; Iraj Rassa; Nematollah Rashid Nezhad Omran; Mohammad Lotfi

Volume 10, Issue 4 , February 2019, Pages 1-26

Abstract
  Separation and mapping of alteration zones in the exploration of porphyry copper types is of particular importance. Aster sensor of Terra satellite image is used to show these alteration zones. There are different alteration in the Sarkuh area, include potassic, propylitic, phyllic, argillic, siliceous ...  Read More

علمی - پژوهشی
Object based interpretation of high spatial remote sensing images based on knowledge-based systems

Abbas Kiani; Hamid Ebadi; Hekmat allah Khanlou

Volume 10, Issue 4 , February 2019, Pages 27-54

Abstract
  Land cover classification in remote sensing imagery is one of the most widely used spatial information extraction methods, which can facilitate generating object imagery classes of the ground surface in order to automate and accelerate meeting the basic needs of management, organization, and exploitation ...  Read More

علمی - پژوهشی
A Comparative study of the traditional accuracy assessment and disagreement measures of the classification of remote sensing imagery

Mehran Dadjoo; Sayyed Bagher Fatemi Nasrabadi

Volume 10, Issue 4 , February 2019, Pages 55-68

Abstract
  Evaluation of the image classification results is very important in the remote sensing projects. So far, many indices have been presented to assess the accuracy of image classification, though Kappa coefficient and Overall accuracy are the most famous ones. Some researchers have criticized these two ...  Read More

علمی - پژوهشی
Analyzing Temporal and Spatial Variations of Surface Albedo over Sistan Plain in Eastern Iran using Satellite Remote Sensing Product of MODIS Sensor of Terra Satellite

Fateme Firozi; Taghi Tavosi; Peyman Mahmoudi; Seyed Mahdi Amir Jahanshahi

Volume 10, Issue 4 , February 2019, Pages 69-84

Abstract
  The radative energy balance received and returned from Earth planet reflects the energy available in each part of the Earth-Atmosphere system. Also, net solar radiation is the most fundamental driving force for evaporation, and all actions and reactions between the Earth's surface and the atmosphere. ...  Read More

علمی - پژوهشی
Preparing hydrologic DEM and its application to produce a accumulated flow map (A Case study at Upstream of Karkheh dam)

Behzad Hessari; Sajjad Karimzadgan

Volume 10, Issue 4 , February 2019, Pages 85-98

Abstract
  Digital elevation model (DEM) reconditioning methods are being used to improve its quality to be used in simulation and cellular hydrological modeling. In this paper , methods of improving DEM and creating “Hydrologic DEM” with using the ArcHydro10.2 extention were studied and also evaluated in 53 ...  Read More

علمی - پژوهشی
Evaluation of Sentinel-2 imagery for the estimation of Silage maize biomass: A case study of Magsal Animal Husbandry & Agriculture, Qazvin, Iran

Farzaneh Hadadi; Hossain Aghighi; Ayoub Moradi

Volume 10, Issue 4 , February 2019, Pages 99-120

Abstract
  The accurate estimation of crop biomass using satellite data is one of the important challenges in environmental remote sensing. Traditionally, spectral vegetation indices (VIs) derived from spectral reflectances in red (R) and near infrared (NIR) bands have been employed to statistically estimate ...  Read More

علمی - پژوهشی
Segmentation of Polarimetric Interferometric Radar Images using Shannon Entropies and Markov Random Field Algorithm

Mohsen Esmail nezhad soltanloo; Mahmod Reze Sahebi

Volume 10, Issue 4 , February 2019, Pages 121-144

Abstract
  Polarimetric Interferometric SAR (POLINSAR) data by providing wealth of information containing intensity, polarimetric and interferometric measurements, have shown many capability of mentioned data in the land cover classification. These three componentes of POLINSAR data could be found independently ...  Read More