Sayyed Ahmad Hosseini; Eisa Ebrahimzadeh; Mojtaba Rafieian; Mahdi Modiri; Mohsen Ahadnejad Roshti
Abstract
Monitoring the expansion of urban areas on a macro scale is very important for planning urban development and prevention of catastrophic problems in metropolitan areas. However, in most cases, lack of basic information in this area, especially in developing countries, is one of the main obstacles to ...
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Monitoring the expansion of urban areas on a macro scale is very important for planning urban development and prevention of catastrophic problems in metropolitan areas. However, in most cases, lack of basic information in this area, especially in developing countries, is one of the main obstacles to achieve this. Therefore, in order to investigate the balance in the urban system of Iran, the urban primacy index and the Rank-Sizedistribution of the cities in Iran were utilized from 1335 to 1390 using population data of urban areas in different census periods. Also, in order to monitor the dynamics of urbanization in contemporary Iran from the spatial-temporal view, the DMSP / OLS multi-temporal images of the years 1371 to 1391 were used.Considering all the indices in the urban system of Iran, the results of the research showed that the urbanprimacy phenomenon has existed in all these periods, and in general, the results derived from the Rank-size logarithmic distribution ofthe cities of Iranbetween the years of 1335 and 1390 indicate that inthe last 55 years, the distribution of the cities has tended towards imbalance over time, and indicate the most unbalanced distribution with an absolute slope of 1.142 in the year of 1385. Finally, the linear regression model was used to analyze the DMSP images in relation to urban areas and the gross national product (GDP).The results showed that there was a linear relationship between light at night and population, urban population and the GDP. The R2 value for the urban population is equal to 0.854 which shows that these images can be used as a factor for identifying the dynamics of the urban system in Iran.
