List of Articles سیستم اطلاعات جغرافیا

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  1 - Evaluation of Ecotourism in Boujagh National Park using multi-criteria analysis and GIS
  Maryam  Haghighi khomami
  10.29252/.1.1.7
  Landslide is a geological phenomenon which cause annual enormous losses of life and property in the country. Since the set of natural and human factors contributed to the damages caused by the landslide, this phenomenon is known as the limiting factor in land developmen More

  Landslide is a geological phenomenon which cause annual enormous losses of life and property in the country. Since the set of natural and human factors contributed to the damages caused by the landslide, this phenomenon is known as the limiting factor in land development policies. One of the most important solution to reduce the damages caused by landslides, is to avoide these areas. For this it is essential to provide high accuracy maps of landslide hazard zoning by an available and suitable method. Thus in this study GIS (Geographic Information System) was utilized to determine the high risk areas and evaluate the impact of various factors. At first the influenced factors were selected by field and other reserchers studies then the layers were prepared on GIS ( by the use of ArcGIS 10.2). These layers are lithology, slope, aspect, land use, road networks, distance to fault, elevation and drainage watershed in Emamzade Ebrahim watershed in west of Guilan province, Iran. In step 1, standardization of the layers was done using Fuzzy logic. Step 2, analyze hierarchi prossess (AHP) was used to pair-wise comparison of these factors and the weight of each factor, which represents the degree of their influence had been calculated and finally landslide hazard zonation map was prepared with different sensitivities. Slope by the weight of 0/308 and lithology 0/231 had highest impact and should be more emphasis and considere on basin development planning managers and policy makers. Also 39% of the basin area has low sensitivity and 2% has very high sensitivity to the risk of the occurrence of landslide hazard. Manuscript profile
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  2 - Land evaluation - Environmental land suitability for urban land planning (Case Study: District 22 of Tehran)
  amir karam ensiyeh mihanparast
  Rapid growth of urbanization and increase of population in the recent decades along reactive planning (in sense of urban planning after occurrence of crises and urban challenges, not before occurrence of crises) of urban districts and metropolitan in order to serve desi More

  Rapid growth of urbanization and increase of population in the recent decades along reactive planning (in sense of urban planning after occurrence of crises and urban challenges, not before occurrence of crises) of urban districts and metropolitan in order to serve desirable services to citizens and the peoples going to cities and extent them, has encountered a problem. In this research , by using the multi criteria techniques and analytic hierarchy process of geo – environmental evaluation for urban land planning with use of geographical information system of zone of 22 has been used .according to this research, effective criteria of land suitability of land planning is divided in to 9 criteria , slop, height , geology , land use , land unit , distance from river, distance from fault , distance from road .the 5 main land uses are high rise building , multistory building , low rise building natural conservation, recreate . the results show that the results show that 19.3 percent area of zone is suitable for high rise building, and 15.28 percent suitable for low rise building. the spatial distribution is of these zones is from north to south and southeast. Suitable area for natural conservation is about 17.6 percent, and 23.33 percent area appropriated for recreation. The conformity of existing building with the suitability maps for the 5 main land uses shows that there are some areas of conformity, but in the other areas, there is unconformity. Manuscript profile
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  3 - Spatial-physical structure management of in-city structures, by AHP method and fuzzy logic (Case study: region17 of Tehran)
  Nemat Hosseinzadeh Faraz  Estelaji Elham Amini
  Due to the central role of the city, Tehran has been associated with increasing population and density, and consequently in providing services and facilities in various fields, due to lack of and, in some cases, due to the lack of appropriate geographical distribution o More

  Due to the central role of the city, Tehran has been associated with increasing population and density, and consequently in providing services and facilities in various fields, due to lack of and, in some cases, due to the lack of appropriate geographical distribution of applications, there are shortcomings Is. The fuel filling stations network is one of the components of the municipal services network that acts as a fuel supplier to the intercity transportation sector, which is important in terms of traffic considerations, urbanization, safety and the environment. One of the most important factors surrounding fuel supply stations (petrol stations) is their proper location. Multi-criteria decision-making models (MCDMs) are now becoming an expanding tool for addressing complex spatial decision-making problems. There are several methods in making multi-criteria decisions. Studies and evidence show that multi-criteria decision-making methods, especially the combined methods between them, provide accurate results for spatial decision-making. Due to the high population density and the density of internal and external passage overnight and the passage to the adjacent areas, Tehran's region 17 shows the need for fuel efficiency and optimal location. Therefore, the purpose of this study was to determine the appropriate location of pump-gas stations in the 17th district of Tehran and to investigate the position of the existing sites in this area, using the GIS and utilizing the fuzzy AHP combined method. Not. The research method has descriptive-analytical and applied nature in this evaluation. In order to achieve these goals, suitable criteria, consistent with the studied area and different methods have been used. Finally, by using paired comparisons and experts' opinion and calculations by the fuzzy AHP method, the final weight of the criteria has been determined. The results of the integration of information layers in ARCGIS software, while identifying suitable locations for building new stations, have analyzed the location of gas station positions, which shows that each of the 2 existing locations in the 17th district of Tehran in an appropriate and optimal position they are not. Manuscript profile
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  4 - Spatial-temporal Analysis Hotspots Theft Crime in the City of semnan
  Esmaeil  Najafi Keramatalah Zayyari Ali Reza Darban Astaneh
  10.29252/.1.4.1
  Background and Purpose:Nowadays the problem of increasing the rate of delinquency and social deviations is one of the most important and most fundamental problem in many cities in the world. After years criminologists have found that certain locations effect on crime. S More

  Background and Purpose:Nowadays the problem of increasing the rate of delinquency and social deviations is one of the most important and most fundamental problem in many cities in the world. After years criminologists have found that certain locations effect on crime. So in recent years researches about the interaction between the physical environment of cities and social ills and crime has become increasingly important. Theft is one of the most important types of crime and delinquency. There are a variety of different forms of theft at the community level. Method:This study, Identifying and Spatial-temporal Analysis of urban Crime Hotspots, have been conducted in Semnan. Geographical information system and SPSS software are used in this study to do spatial and temporal analyze. In this study some crimes have been studied as a sample that took place in legal limit of Semnan city in range of 1394/1/1 until 1394/29/12. Then after preparing a database of theft and using statistical and graphical tests, crime hotspots have been identified and analyzed in a spatial way in Semnan city. This is a descriptive and analytical research and data is provided by library and statistical information and field observations. Findings and results:The results showed that the urban crime hotspots of Semnan are in the Imam street. With more details this area extends from Imam square to Mazandaran crossroad. These hotspots also lay in Semnan market. This market is in the crowded and bustling part of city and has mostly commercial function and unsuitable physical structure. It is cleared that in terms of time, the highest rate of theft in Semnan city had occurred in warm months of year as well as the initial days of the week. The results showed that most of thefts had occurred in a time between 9 A.M until 13 P.M. Manuscript profile
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  5 - The Study of mosque distribution in the Tehran 8 region with spatial analyses in Geographic Information System
   
  One of the main indicators among Muslim people is the spatial distribution of mosque in relation with population density and location of mosque in the cities In this study the spatial distribution of mosques in the region 8 Tehran municipality based on spatial analysis More

  One of the main indicators among Muslim people is the spatial distribution of mosque in relation with population density and location of mosque in the cities In this study the spatial distribution of mosques in the region 8 Tehran municipality based on spatial analysis techniques in the GIS environment studied After creating a mosque geodatabase in the GIS environment for the distribution of mosques in the region 8 Tehran, density analysis and distance analysis for distribution of mosques with population density. Based on spatial analyses studied. Based on this research results, 43.3 percent of region 8 Tehran had a normal condition of proportion population and mosque distribution. Although 32.2 percent of region 8 that are located in the east part of this region, doesn’t have good relation among population density and mosque distribution. The lack of land for development in this region is one of problem for increase mosque in this area Manuscript profile
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  6 - A Comprehensive Approach to Urban Disaster Management Based on Vulnerability Map and Risk Zoning Case Study: Tehran Municipal District 1
  وحید  اسماعیلی کیاسج   Kamran shahanaghi
  Natural Disasters have always been a part of life on our planet. With human society development, urban areas and Metropolises have not been safe from destructive effects and consequences of disasters. In addition to intensity and extent of disasters, vulnerability of so More

  Natural Disasters have always been a part of life on our planet. With human society development, urban areas and Metropolises have not been safe from destructive effects and consequences of disasters. In addition to intensity and extent of disasters, vulnerability of societies has remarkable dependence on proper urban infrastructures, strong structures, preventive programs and appropriate preparation in emergency-related organizations. Occurrence of an onset disaster like earthquake, usually leads to secondary damages in urban areas; they happen for an obvious reason and have specific outcomes. Identification of all significant reasons and consequences results in creating a vulnerability map for urban wards which could be a useful basis for preventive programs. On the other side, one of the most effective and efficient approaches to create preparedness and response plan disaster management organizations, is designing a relief chain with proper logistic modules and devoting responsibilities to authorities, based on data achieved from damage estimation studies. Hence, in this paper, a sequential approach is used to apply geographic information system and eliciate experts' knowledge of urban areas so as to create both damage estimation and vulnerability maps; These information. In turn, help designing disaster management cycle, specifically, Preventive, preparedness and response programs for an urban area. In order to create a better perceptive of the proposed approach, Tehran municipality district (1) is used as a real case study and its vulnerability to a hypothetical earthquake is estimated to create disaster management program. Manuscript profile
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  7 - The efficacy of multivariate regression models and GIS in Selecting SuitableSites for Rain Water Harvesting (Case Study: Tajareh Watershed)
  maryam aghaie siamak dokhani ebrahim omidvar
  Water scarcity in arid areas is a serious crisis. The most important step in using rainwater collection systems is to locate suitable areas. In this research, three methods of multivariate regression model and GIS have been used to locate the on-site and off-site rainwa More

  Water scarcity in arid areas is a serious crisis. The most important step in using rainwater collection systems is to locate suitable areas. In this research, three methods of multivariate regression model and GIS have been used to locate the on-site and off-site rainwater collection method in Tejreh watershed. In this study, canopy, litter, rock and gravel, bare soil, CN, precipitation, slope and soil depth as independent variables and influence on in situ rainwater collection and maximum instantaneous discharge for non-in situ rainwater collection method The title of the dependent variable was considered. The multivariate regression model uses stepwise method, backward removal method, and forward method. And the standard step-by-step method, regression removal method, step-by-step method in collecting rainwater, non-in situ method have been used. The final results by matching the results of previous research show in step rainwater collection, stepwise method and between layers CN, soil, percentage of rock and gravel, and in non-in situ rainwater collection stepwise regression method Standard and among layers the percentage of litter, percentage of canopy, CN, slope, percentage of rocks and pebbles, amount of rainfall, percentage of bare soil and soil depth are known to be important in the equation. Finally, the importance of rain collection sites was divided into four classes: very good, good, medium and poor. Manuscript profile
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  8 - Location of suitable areas for rural waste disposal (study area: Qasrshirin city)
  mostafa tavakoli naghmeh habib mahmoodi chenari fereshteh jasemnejad
  Wastes pollution is the source of many environmental problems. These pollutants cause water, soil and air resources pollution and destruction of natural landscapes and spread of disease, while waste disposal centers pose a threat to rural areas, despite the appropriate More

  Wastes pollution is the source of many environmental problems. These pollutants cause water, soil and air resources pollution and destruction of natural landscapes and spread of disease, while waste disposal centers pose a threat to rural areas, despite the appropriate distance from urban centers. Determining areas suitable for landfills is one of the general strategies to deal with this crisis. In this research, which has been done by descriptive-analytical method and relying on library resources, after collecting raw layers related to 12 indicators (rural, urban, roads, water resources, floods, land use, pastures, soil, geology, faults, communication roads, etc.) and preparing distance maps and its scaling were investigated using linear software in GIS software of suitable areas for waste disposal in Qasr Shirin city due to its special location in terms of abundant water resources (mineral water and ecotourism). The results show that most of the city of Qasr Shirin is not suitable for waste disposal, these areas are shown in red in the final output of the models. Also, only the parts of the city are suitable for this purpose, which are marked in blue in the final output of the models. Manuscript profile
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  9 - Determining the optimal route of the Yasouj-Isfahan axis with the construction route with GIS
  Navid   Bahadur ali aram
  Routing is considered as one of the primary measures of the design operation of a route, and due to its significant role, how the route is placed in relation to other facilities, the environment, and its adjacent complications on the one hand, and the significant impact More

  Routing is considered as one of the primary measures of the design operation of a route, and due to its significant role, how the route is placed in relation to other facilities, the environment, and its adjacent complications on the one hand, and the significant impact it has on the implementation costs of the route, on the other hand, should be carefully investigated. At the same time as sustainable growth and development and fundamental developments in economic, social, and cultural affairs, the role of the road network appears as one of the important and fundamental parts in further development; In addition to the potential resources and talents, it makes the land fertile and provides the ground for growth and prosperity. Considering the correct and comprehensive criteria in the route determination stage can play a major role in reducing economic costs, increasing safety, and road accessibility and preserving the environment. For this purpose, in the current research, several factors such as slope, height, land use, geology, landslide, distance from the fault, distance from urban centers have been considered for optimal routing in Rudsar route. Therefore, in the current research, the shortest route on the Yasouj-Isfahan axis has been determined. The research method in this study is descriptive-analytical and ArcGIS software and AHP model were used for data analysis. According to the optimal route, it was chosen using this method due to its location in a suitable slope and close to the economic centers and far from the fault. The obtained results show that the obtained route is shorter in terms of duration and reaching the optimum than the previous route, and this will reduce the cost of fuel and reduce traffic. Manuscript profile