Original Article
Combination of EVI and SPI Indices for Mapping of Drought-Prone Areas (Case Study: Kurdistan Province)

vahid ahmadi; Abbas Alimohamadi

Volume 13, Issue 2 , August 2021, Pages 1-22


  Drought evaluation is important in terms of spatial and temporal for planning to reduce damages in the Kordestan province. In this research, Standardized Precipitation Index and the Enhanced Vegetation Index have been used from the extracted satellite images for determinants of drought. so, the statistical ...  Read More

Original Article
Analysis of Barriers to Blue Band Albedo Satellite Observations in Iran

Omid Reza Kefayat Motlagh; mahmood khosravi; Abolfazl Masoodian

Volume 13, Issue 2 , August 2021, Pages 23-38


  Albedo is one of the parameters needed in environmental and climate studies. Therefore, examining its temporal and spatial behavior can be a tool for understanding environmental changes. The MODIS sensor produces Albedo the surface of the earth continuously on a global scale with low spatial resolution ...  Read More

Original Article
A Fully Convolutional Neural Network-Based Approach for Detecting Simultaneously Roads and Buildings in Aerial Imagery

Nacer Farajzadeh; Hiwa Ebrahimzadeh

Volume 13, Issue 2 , August 2021, Pages 39-60


  The development of automatic road and building detection systems in aerial imagery are always faced with challenges such as the appearance of buildings, illumination changes, imaging angles, and the density of roads and buildings in urban areas, to name a few. In recent years, employing multi-layered ...  Read More

Original Article
Estimation of Agricultural Crop Yield Using Sentinel-2 Images (Case Study: Zanjan City)

Seyed Ahmad Mousavi; milad janalipour; Nadia Abbaszadeh Tehrani

Volume 13, Issue 2 , August 2021, Pages 61-74


  The basis for proper planning and management is to have accurate and timely statistics and information. One of the most important statistics of the agricultural sector is the annual production rate of each crop, which also depends on the area under cultivation of crop and its efficiency. One of the tools ...  Read More

Original Article
Evaluation and Analysis of Land Use Change Trends in Protected Areas (Case Study: Lar National Park)

Parvaneh Sobhani; hassan esmaeilzadeh

Volume 13, Issue 2 , August 2021, Pages 75-92


  Today's, one of the impacts of human activities in the form of land use change is the lack of attention to environmental constraints that impact the appearance of the environment, and have devastating impacts on natural ecosystems such as National Parks and Protected Areas. Therefore, identifying the ...  Read More

Original Article
Application of GIS in Predicting Rail Network Capacity through Linear Regression

Bahram Moradi Solooshi; Alireza Vafaeinejad; Hossein Aghamohammadi Zanjirabad; ali asghar ale sheikh

Volume 13, Issue 2 , August 2021, Pages 93-118


  The rail transport system consists of the interaction of a set of equipment and operations that determine the capability and capacity of a rail system in freight and passenger transport. For this purpose, it is important to calculate the capacity and predict how it will change, and knowing it will be ...  Read More

Original Article
Determination of Groundwater Spring Potential Using Maximum Entropy, GIS and RS Emphasizing HAND Topographic-Hydrologic New Index (Case Study: Urmia Lake Basin)

Mehdi Teimouri; Omid Asadi Nalivan

Volume 13, Issue 2 , August 2021, Pages 119-138


  The purpose of this research is to determine the groundwater potential of areas and to prioritize the factors affecting it using the maximum entropy method and the new height above the nearest drainage index. In the present study, 14 effective indicators have been used for groundwater potential including ...  Read More