Mohammad Baaghideh; Gholamabbas Fallah Ghalhari; Hasan Hajimohammadi; hasan rezaei
Abstract
Extended Abstract Introduction The climatic conditions of each site play an important role in the dispersion of humans, animals and plants. Therefore, any activity or planning in different economic, agricultural and industrial fields at the ground level is not feasible without the knowledge of ...
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Extended Abstract Introduction The climatic conditions of each site play an important role in the dispersion of humans, animals and plants. Therefore, any activity or planning in different economic, agricultural and industrial fields at the ground level is not feasible without the knowledge of the climate. For this reason, climatic zoning and recognition of the most important factors and factors affecting each area is one of the ways of recognizing the climatic identity of the area. Lack of knowledge of the sub-regions of the country fails to meet the economic and agricultural plans of mankind. In general, the climate of a region is the average of the weather conditions in the region. Access to the average weather conditions in a specific location requires long-term weather information. Data and Methods In order to obtain the correct and comprehensive knowledge of the climate of Hamedan province, climatic zoning was performed with new statistical methods such as factor analysis and cluster analysis during the 20 years period (1993-2013). For this purpose, 23 variables were selected from 8 meteorological stations. Then, using a digital elevation model, a multivariable regression was applied between the meteorological parameters and the digital elevation model. Finally, a zonal matrix with a dimension of 23 × 88 was obtained. Since the aim of this research was the climate zone of Hamadan province based on altitude, a digital elevation layer (DEM) was used with a resolution of 90 meters. In the following, for climatic zoning, a regression relationship was made between climate parameters and length, width and height of the area. To identify the climatic sub-regions of Hamedan province, the raster data obtained from the zoning were converted to point data. Then, based on the analysis of the main components, the points were analyzed by clustering method and the dominant factors were identified. In this research, the resolution of each of the pixel was 15 × 15 km and a matrix with dimensions of 23 × 88 was developed. Finally, this matrix was clustered into the MATLAB software using the Wardclustering method. Results and discussion By studying 23 climatic elements, 5 climatic factors were identified and their maps were drawn. These factors include temperature, visibility, rainfall, thunder storm and radiation. Among these factors, the first factor with 37% of the variance of the total data has the most important role in determining the climate diversity of the province. This factor is most commonly observed in the South and Southwest of the province and with moving to the North and Northeast of the province, this factor is severely reduced. Conclusion According to the dendrogram, 6 climatic regions were identified and the characteristics of each separate area were investigated.
Mohammad Eskandari nodeh; Leila Sayyad Bidhendi
Volume 21, Issue 84 , February 2013, , Pages 35-54
Abstract
Informal Settlement is one of the urban problems whose most important trait is insecurity of possession, abnormal house structure structure condition, less access to urban services and safe nutrition, and extra density. These conditions are especially more apparent in undeveloped countries. In ...
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Informal Settlement is one of the urban problems whose most important trait is insecurity of possession, abnormal house structure structure condition, less access to urban services and safe nutrition, and extra density. These conditions are especially more apparent in undeveloped countries. In these countries, more than 50 or 75 percent of the population live in informal settlements. In Iran also, the problem of informal settlement appears clearly from decade 1340 afferwards, when the rate of urbanization was on its apex, by which cities confronted serious problem which has been always increasing.
In Iran, the state has endeavored to organize informal settlement. These efforts are necessary due to what constitution emphasizes in clauses 3 and 31 about the right of Iranian citizens to have suitable shelter and appropriate house. This research tries to evaluate state policies in organizing informal settlement in Bandar-e-Abbas by applying Factor Analysis and Likert methods. This research uses quantitative and then qualitative analysis methods. Results indicate that the state was not much successful in organizing and empowering informal settlement indexes in Bandar-e-Abbas. Finally some conclusions and suggestions are presented.
