Sustainable Urban Development
Mojtaba Azmoun; Mohammad Mohammadnejad
Articles in Press, Accepted Manuscript, Available Online from 27 April 2024
Abstract
Urban heat islands (UHIs) are a growing concern in metropolitan areas, leading to temperature differences between urban centers and surrounding areas due to various ecological, morphological, topographical, and demographic factors. Major Iranian cities have undergone rapid land-use transformations and ...
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Urban heat islands (UHIs) are a growing concern in metropolitan areas, leading to temperature differences between urban centers and surrounding areas due to various ecological, morphological, topographical, and demographic factors. Major Iranian cities have undergone rapid land-use transformations and expanding urbanization, facing the challenge of UHIs. This study investigates UHIs in Tabriz, focusing on District 1, Neighborhood 1 as the first area and District 6, Neighborhood 4 as the second area. The study employed Landsat 8 remote sensing images to analyze UHIs in Tabriz, Iran. The images were acquired for the summer season, representing the period of maximum UHI intensity. The Normalized Difference Vegetation Index (NDVI) was calculated to assess vegetation cover, while land surface temperature (LST) was derived using the single-channel algorithm. Morphological indicators were extracted from OpenStreetMap data. The study aims to extract, locate, and analyze UHIs in the study area using specific formulas and prepare relevant maps, focusing on ecological and morphological indicators. The minimum and maximum temperatures in District 1 were 15.88°C and 37.65°C, respectively, while in District 6, they were 24.11°C and 40.87°C. Analyzing the extracted maps based on the selected ecological indicators (vegetation cover, wind, solar radiation, and elevation) and morphological indicators (building height, building density, building façade, and building roofs) in both districts, we concluded that District 1 is cooler due to several factors: higher elevation, better reception of prevailing northeastern winds, more suitable street orientations, lower building heights (mostly one-story), and a higher prevalence of reflective roofs compared to District 6. Although District 6 has better vegetation cover and lower building density.
Urban Environment
Mojtaba Azmoun; Mohammad Mohammadnejad
Volume 4, Issue 4 , January 2024, , Pages 54-66
Abstract
Background and Objective: The accurate locating and design of industrial areas can be considered a robust step taken to improve the environment, develop industries, and accurate and logical growth of urban and rural areas. In this research, the number of pollutants is measured during the 30 days of November ...
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Background and Objective: The accurate locating and design of industrial areas can be considered a robust step taken to improve the environment, develop industries, and accurate and logical growth of urban and rural areas. In this research, the number of pollutants is measured during the 30 days of November 2023 to examine and analyze the impact of industrial uses of Tabriz City on its air pollution, and its location and placement in Tabriz have increased the air pollution indicators. The mentioned indicators are revised and examined based on the collected data and available data of research through Geographic Information System (GIS) and using library and analytical methods such as the IDW method. Materials and Methods: the variables examined in this study included pollutants and their types over the 30 days of November 2022 in Tabriz Metropolis, which is done through library and data collection methods. Carbon monoxide (CO), Sulfur Dioxide (SO2), Particulate Matter (PM2.5) and (PM10), Nitrogen Dioxide (NO2), and Ozon were collected based on the point method in Kajvar, Hakim Nezami, Azerbaijan Square, Hotel Marmar, Namaz Square, Rah Ahan, Bagheshmal, Abresan, and Behdasht Stations. These data are prepared and expressed as pollutant distribution maps for each pollutant in the form of descriptive maps through ARC GIS software based on the Inverse Distance Weighted (IDW) method. Findings and Conclusion: The results show that the location of industrial areas in Tabriz does not affect the air pollution rate of Tabriz, and has no negative effect on increasing air pollution in Tabriz.
