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Showing 143 results for Urban

Mohammad Soleimani, Ahmad Zanganeh, Taher Parizadi, Gholamhosein Jahandar,
Volume 23, Issue 69 (6-2023)
Abstract

Urban highways, as one of the most important sectors of transportation, have always been one of the most challenging, both in terms of budget consumption and its spatial, social, economic and environmental impacts on the city. It has been urban elements. To this end, this study analyzes the impacts of inter-city highways, examines the theories of how to deal with this spatial element, as well as the factors involved. The type of research is applied-theoretical and the method is documentary-analytical. The sources of information used in this research are all documents, documents, books, articles, plans, and scientific research on urban highways. The results indicate that there are favorable and disagreeable views and views on the creation of inter-city highways. Modernist thinkers and urban engineers, advocates of urban highways, and later urban planners and geographers, are opposed to one-dimensional attention to these highways and inner-city development relying on highways. The results also showed that the inter-city highways had social, economic, physical and environmental impacts and, depending on the location conditions and the socio-economic characteristics of the location, these impacts were positive and negative in space. It looks around.
 
Jalal Haghighi, Saideh Zahra Sadat Zarabadi, Mostafa Behzadfar, Mojtaba Rafiyan,
Volume 23, Issue 69 (6-2023)
Abstract

Evaluation is one of the most important necessities in the process of urban regeneration, which leads to the optimal decision to solve the problem of urban inefficiency. Evaluating decisions in the urban regeneration process, given its complexity, ambiguity and uncertainty, is a critical issue that requires identifying the criteria that affect its realization and using fuzzy decision-making methods. The purpose of this study is to introduce a fuzzy Delphi method based on qualitative reasoning to identify and localize the criteria affecting urban regeneration. The research method is a combination of quantitative and qualitative methods. The present study is applied in terms of developmental goal and descriptive-analytical in terms of researcher action. The content analysis method was used to develop the conceptual model of the research and the fuzzy inference system (FIS) and Matlab and SPSS software were used to analyze the components and criteria of urban regeneration. To obtain the required data for the research, open and closed questionnaires were distributed among experts and the expert group. Then, the obtained data were entered into the fuzzy inference system and their output was considered as research findings. According to the results of the study, 18 criteria were identified to evaluate the regeneration policy. These criteria were reduced to 12 criteria in the final selection stage, which was done by Delphi interview method. The results show that the most important and insignificant components of urban regeneration in Qom are economic, functional, physical, managerial, social and environmental components, respectively. General Transportation and Access to Urban Management Safety and Health, Housing and Infrastructure.
Dr Arash Ghasemphour, Dr Azadeh Arbabi, Dr Naser Ebadati, Dr Fatemeh Adibi, Dr Maryam Rostam Pishe,
Volume 23, Issue 69 (6-2023)
Abstract

This research has been carried out with the aim of analyzing and explaining the spatial distribution of Mahshahr port during the years (1981-2021). The research method is descriptive-analytical and practical in terms of targeting. For data analysis, cross-tab, kappa coefficient, sectorial, Heldren and Markov chain models were used. In this regard, Envi 5.3, Terrset, Arc/Gis and Google Map software were used to analyze the obtained information. The geographical scope of this research is the city of Mahshahr according to the census of 2015. Kappa coefficient of Mahshahr port spatial changes map for  1981, 2001 and 2021 is equal to 0.88, 0.94 and 0.94 respectively. The results of this research show that during the years 2001 to 2021, about %75 of the growth of Mahshahr city is related to population increase and %25 is related to horizontal and physical growth. The spreading pattern of Mahshahr port is expanding in the form of clusters in the north, north-west, west and south-west directions. According to the forecast results for the time horizon of 2041, the growth of Mahshahr port will reach from 1657 hectares in 2021 to 2530 hectares in 2041. If there is no optimal management, the dispersal of Mahshahr port and its agricultural lands will undergo many changes in the not-so-distant future, and this will have adverse effects on the residents of this city due to the climatic condition of the city and global warming.

 
Mehdi Mohammadzadeh Moghafam, Mohammad Motamedi, Ezzatollah Mafi,
Volume 23, Issue 70 (9-2023)
Abstract

According to the issues raised, the present study has been compiled with the aim of examining and assessing the situation of cities from the perspective of urban crisis management components. The research method in this research is a combination of research, applied (using the results and output of research in Shirvan) and development; Statistical population In the present study, according to the determination and classification of related organizations, each organization was selected as a statistical sample from each organization according to the percentage of the total statistical population, which in total 227 People were selected as the statistical sample of the present study. Finally, the quota non-probability sampling method, in which the number of samples is determined in advance and is from experts, was distributed. The findings show that the lowest and most unfavorable calculated average of 3.57 belongs to the post-crisis period and post-crisis reconstruction, which is not in a satisfactory state. It is related to the identification of vulnerable zones due to hazards in Shirvan city and in this section 12 indicators were analyzed based on FAHP model, which showed that the rate of vulnerability in 5.37% of Shirvan city Very low, 22.38% low vulnerability, 14.12% moderate vulnerability, 27.75% high vulnerability and 30.39% very high vulnerability. In fact, it can be said that the vulnerability of Shirvan is low in 27.75% of the city and high in 58.14% of the city. In the central neighborhoods of the city due to high age, population density, wear and tear, low quality buildings and ... the level of vulnerability is high.
 

Hadi Nagibi, Adel Sherizadeh,
Volume 23, Issue 70 (9-2023)
Abstract

Nowadays, tourism, as one of the key components, has a special role in developing societies and countries. Here, urban tourism - as a significant parts of the tourism industry - has a special place in improving the economic and cultural development of cities and has turned into one of the most important, exchange yielding, and income creating industries. Nevertheless, the development of this industry in cities faces some challenges and problems. This calls for a new and integrated planning to take advantage of opportunities and face the challenges ahead. Future studies can take very effective steps in planning for the development of urban tourism and mapping out the desired future of tourism, and by presenting proper solutions, it can stop the emergence of challenges and the realization of an undesirable future. This study was working towards in line with this purpose. In the present study, using Delphi technique, 36 factors were identified as the primary factors affecting the future of the development of urban tourism in Khoy. The structural analysis method was used with the help of MicMac software to extract key factors, where 12 factors were selected as key factors. Then, the probable situations were defined for each key factor. In the next step, to measure the effectiveness of the occurrence of the status of each of the factors on the occurrence or non-occurrence of other factors, a 33 × 33 matrix was designed and given to the experts. Finally, to compile probabilistic scenarios and to identify desirable scenarios, the data for this matrix were introduced into the scenario software. ScenarioWizard software reported 1406 poor scenarios, 4 strong scenarios and 13 credible scenarios by performing the needed analyses. Examining the credible scenarios showed a relative ruling of static, critical and undesirable situations over the desirable and ideal situations. Apart from the first scenario with desirable and progressive features, the rest of the scenarios do not show a desirable future in minds for the development of tourism in Khoy. 
 
Kyarash Ardestanipourhazhir,
Volume 23, Issue 70 (9-2023)
Abstract

The city is a vibrant and dynamic creature whose body is shaped at different times by natural and social economic, political, cultural and economic developments. In a sound and healthy fashion, these developments are such that the old elements of the cities are restored to meet the new needs. In the structure and even in the destruction of these tissues. The purpose of this study was to investigate the feasibility of creating new functions in ancient urban context. The present study is of applied purpose and of descriptive-analytical method. The statistical population of the study was comprised of experts in the field of research and the sample size was 30 persons. The results of the implementation of the Suara model showed that among the indicators identified for the social dimension, the role of owner-investor participation index with a final score of 0.224 was ranked first, for the economic dimension, the index of participation in purchase and construction and Builder in the range with a final score of 0.306 in the first rank, for the physical dimension Paying attention to meet the current needs for physical and functional change with a score of 0.416 in the first rank, and for the environmental dimension Indicator Role of New Construction in the Area Infrastructure With a score of 0.610, it is the highest.
Abbas Minai, Rahim Heydari Chianeh, Shahrivar Rustai,
Volume 23, Issue 70 (9-2023)
Abstract

the purpose of this study was to identify factors affecting the competitiveness of tourism destinations. The present study is of applied purpose and of descriptive-analytical method. The required data for the study were collected in two forms: library and field (questionnaire). The statistical population of the study consisted of incoming tourists to Ardebil city. Due to the lack of accurate statistics on the number of incoming tourists the Cochran formula was used to determine the sample size for an unlimited population. The sample size was 384 people. It was a simple accident. In order to check the validity of the questionnaire, the validity of the questionnaire was confirmed in two stages of face and face validity through the opinion of professors and experts, and divergent validity was confirmed by calculating the extracted mean variance index (AVE). The reliability of the questionnaire was measured by Cronbach's alpha and the combined reliability coefficient (cr). The results of Cronbach's alpha and combined reliability of the questionnaire confirmed the validity of the questionnaire. Spss and lisrel software were used for data analysis. The findings of this study showed that creativity and sustainability of tourism destinations have a positive and significant effect on the competitiveness of urban tourism destinations. The results also showed that the impact of sustainability of tourism destinations on the competitiveness of tourism destinations is more than the creativity of tourism destinations
Mohammad Doosthoseini, Vahid Bigdeli Rad, Maryam Moeinifar,
Volume 23, Issue 70 (9-2023)
Abstract

The creative urban area must be able to support the economy of the urban area, intelligent transportation, management rehabilitation as well as improving environmental performance, and also it can be providing the grounds for the realization of social capital in order to achieve the indicators of social capital. The present article aims to identify the factors for the realization of the model of creative urban area from the perspective of social capital in District 11 of Tehran. The methodology of research is descriptive-analytical and after referring to library resources, the ideas, views of related theories and the concepts of the research were examined. Statistical sample included academic community and urban specialists working in scientific centers. A questionnaire was used to examine the views and opinions of the academic community and urban specialists working in scientific and specialized interview centers. In this regard, SPSS and Excel software were used to answer the questions and achieve the objectives of research and analysis of the results of the questionnaires. The results of the research showed that the indicators of turnout, attendance at meetings related to regional affairs and creative goals, level of trust in institutions at different levels, level of information about local and national affairs and talent search, level of feeling of influencing events. And the specific values ​​of each of the six factors were higher than the value of 1. Also, studies indicated that the cumulative variance explained by the relevant factors in the study sample is about 69.879, which explains the development of a model of a creative urban area in the 11th district of Tehran and represents 70% of the model realization based on the social capital approach.

Majid Rajabi Jurshari, Tuba Amir Azodi, Rahim Sarvar, Jamile Tavakoli Nia,
Volume 23, Issue 70 (9-2023)
Abstract

Quality of life is one of the most important issues in the world that has an urban planning in order to search for the quality of life  and in order to solve this problem , some solutions have been offered . The purpose of this study was to investigate the role of quality of life in women . This research due to the importance of the subject is based on analytical - applied method based on structural equation modeling of structural equation modeling of library and documentary research with the aim of analyzing the relationship between quality of life and its relation with this research . The statistical population in the first stage in the first stage , and the second stage in the second stage , the inferential statistics was used to determine the status of some specialized experts . The results showed that the quality of urban life is the most important indicator for the quality of urban life and the quality of urban life is the lowest . It is a reciprocal relationship , which in turn has severity of quality of life .
 
Behrouz Hashemi, Farzaneh Sasanpor, Ali Movahed, Habiallah Fasihi,
Volume 23, Issue 71 (12-2023)
Abstract

Abstract
With the rapid growth of population and urbanization since the last century, the complexity and understanding of the spatial organization of the city, as well as the ability to predict urban events in its spaces, have become difficult and in some cases impossible. Karaj metropolis is one of the major metropolitan areas of Iran that has been experiencing rapid population growth and this has led to complexity of space and consequently to complexity of organization recognition and analysis and its spatial structure and impact of livelihood components. It has become a spatial system. The main purpose of the present study is to identify the role and impact of Karaj's spatial organization on its nuclear viability. The research method is quantitative and descriptive-exploratory. The study area was Karaj metropolis and its main nuclei. The statistical population of this study is citizens living in the sub-nucleus of Karaj. The sample size was 378persons. The data used in this study were collected through library and field research. Data were analyzed using spatial statistics, spatial arrangement, and T-test and Friedman test. The results show that the Karaj metropolitan organization and spatial structure are interconnected and connected to some of the major routes, forming sub-nuclei away from the core and thus transferring the functional and service applications from the center to be the peripheral nucleus. This has affected the viability of the core. Decrease in biodiversity has occurred in different physical, social, economic and environmental dimensions that have affected the environmental and economic aspects less than the other two dimensions, so it can be concluded that the Karaj Spatial Organization has an impact on its viability.
 
Mohammadreza Zamiri, Dr Mahin Nastaran, Dr Mahmud Galenoyi,
Volume 23, Issue 71 (12-2023)
Abstract

Considering important role of housing in contemporary urban areas, evaluating urban housing quality has become one of the most popular topics in recent researches. Housing has vast conceptual perspectives which include many aspects of urban life beside the dwelling purpose of it, such as recreation, primary schools, and play yards and so on. The most efficient tool for achieving such purposes is evaluation of qualitative and quantitative urban housing indicators. Using quantitative, objectivistic, positivistic methods and models frequently observes in Iranian scientific journals recently. This article aims to study and evaluate such researches, using scientific analytic methods which have accepted and published in domestic scientific journals. The emphasis of this article is to review papers which studied urban indicators in any area in Iranian urban areas which published between March 2011 and September 2019. To do so, the PRISMA method (Preferred Reporting Items for Systematic Reviews and Meta Analyses) has introduced and applied and 39 papers have selected. These papers selected among all papers had indexed in Scientific Information Database (SID.ir) and Comprehensive Iranian Humanities Portal (ensani.ir) which include one of these keywords: housing indicator, urban housing. Complete information of these papers has cited and method, data resources and conclusion of each paper discussed briefly. Some criteria introduced and measured to evaluate different aspects of selected papers considering PRISMA suggestions. The most cited sources (papers, books, dissertations and statistic reports) have identified and applied in conclusion.
 The results have shown that applying quantitative methods on urban indicators led to analogous assessments in various contexts and using novel methods and models, especially applying qualitative and mixed methods would resulted in novel and efficient perspectives to future urban housing programming and applying the PRISMA method would increase quality of survey reviews and strongly recommend to achieve comprehensive and qualified study of similar researches.
 
Fatemeh Mirzabeigi, Hossein Mojtaba Zadeh, Rahim Sarvar,
Volume 23, Issue 71 (12-2023)
Abstract

by examining the level of inequality in the distribution of services and identifying the spatial pattern of injustice in the city, we can find out which of the services are in a more unfavorable situation than in this way, city management with conscious performance in spatial distribution of public services and social interests. , Reduce spatial inequalities and improve the quality of life and ensure sustainable urban development. The present research is applied and its research method is descriptive-analytical. The purpose of this analytical research is on the status of Ilam urban development indicators in order to achieve spatial justice, which uses the capabilities and facilities of geographic information system, including: map composition, Spatial statistics, etc. have been done. The results show that the spatial distribution of services in Ilam city is not desirable and the results of this study show that the concentration of urban facilities and services has occurred in the central part of the city and other areas are low in terms of urban resources and facilities. The research findings show that 20% of the city's population lives in relatively affected areas and 23.2% in areas with semi-sustainable development, and over 50% of residents live in deprived and completely deprived areas in terms of development in Ilam city. The results of the Vikor model are not considered to be sustainable development in any area. However, based on the results of the research, the focus of urban services in Ilam city follows the center-perimeter model, which means that everything from the central areas to We move around the area, reducing the distribution of services.
D.r Pakzad Azadkhani, D.r Mohammad Salavarzizadeh, Ms Fatemeh Farogh Doost,
Volume 23, Issue 71 (12-2023)
Abstract

Deterioration of urban textures is an issue that most cities in Iran are faced with and the organization of such textures is of great importance. One of the safest and most practical solutions for urban planners is to assess the feasibility of regenerating such textures to determine the levels that can be regenerated and are relatively good and tolerable for urban society. Therefore, the present study aims to investigate the feasibility of regenerating worn-out textures of Ilam City based on urban smart growth approach using a descriptive-analytical methodology. The statistical population of the study includes residents of central worn-out texture of Ilam city (population: 12676 people), 384 of whom are selected as the sample of the study using cluster sampling method. The data collection tool is a researcher-made questionnaire that has been confirmed by face validity and Cronbach’s Alpha coefficient, turning out to be 0.701. Data analysis is done using single-sample t-test, fuzzy multi-criteria analytical hierarchy process (fuzzy AHP), and its integration with GIS layers. The findings show that the condition of worn-out textures of Ilam city is unsuitable in terms of urban smart growth approach. Evaluation of the digital strata shows that some indicators (including size of the sections, access to services, main and secondary access points) are in a good condition and others (including unused land, population density, gender ratios, active population, employment rate, and literacy rate) are in a poor condition. Finally, the results show that 2.3 hectares of the worn-out texture of Ilam City, including 22-Bahman Square, Ashrafi Esfahani St. where it crosses Resalat Intersection, the northern edge of Moghavemat Intersection, the northern edge of Imam Square, and the area around Koudak Park, have the highest priority for regeneration and revitalization.

Zeynab Khaleghi, Farah Habib, Hossein Zabihi,
Volume 23, Issue 71 (12-2023)
Abstract

Water as one of the most essential natural elements of landscape and consequently urban landscape from yesterday till today has had a great impact on the formation and effectiveness of urban spaces and its various effects have always stimulated human tendency towards beauty. It should be noted that the existential values ​​of water are not merely aesthetic, rather it goes back to the deepest and innermost part of nature. Such a stimulus has led human beings to recognize different aspects of water, including sensory and perceptual, visual, semantic, functional, physical-aesthetic, environmental, psychological, social, and temporal and this knowledge has provided the backdrop for a variety of water-based designs in the urban landscape. The main purpose of the present study is to identify all the features and existential values ​​of water and their proper application in the urban landscape. In other words, the explanation of a specific pattern including major water criteria and indicators in the urban landscape has been considered to improve the quality of the landscape in urban environments. The research method is applied and the type of study is descriptive-analytical and data collection is based on the study of library resources and content analysis of text. The results of the research indicate that by applying all the existing dimensions and values ​​of water element in the urban landscape, the quality of urban spaces can be improved. The use of water criteria and indicators in the urban landscape in a coherent and integrated manner requires a compiled pattern that is presented in the end in a tabular form.
 
Khadigeh Khatiri, Iran Ghazi, Nemat Hasani,
Volume 23, Issue 71 (12-2023)
Abstract

Identifying the level and trend of social capital among the people of a society can help to identify the social and cultural changes of that. The purpose of this study is to explain the development of social capital in urban water crisis management using factor analysis. This research is of applied-developmental type and descriptive-survey study method. The questionnaire is used to collect information and SPSS software and exploratory analysis statistical test is used to analyze the data. The statistical population includes the countrychr('39')s crisis and water supply managers (15 people chosen by targeted sampling); Also, all residents of Karaj during 1396 - 1395, which was used as a statistical sample using the Cochranchr('39')s table for 350 people, of which 44.3% were women and 55.7% were men. The results of statistical analysis showed that in people (sampled) of statistical population’s opinion the level of social capital was lower than what desired. Also, the factors involved in the development of social capital for the water shortage crisis were counted and measured in the form of 24 variables. And finally 5 items eliminated to be effective ones to development of social capital in crisis management of urban water which are ( in order of preferences ) social trust, motivating policies, change in attitude atmosphere, infrastructures of interactions and values in the society, mutual reconciliation between people and government

Rasoul Ghorbani, Akbar Asghari Zamani, Rahim Gholamhosseini,
Volume 23, Issue 71 (12-2023)
Abstract

There is a wide body of literature indicating a strong link between urban form and carbon emissions in the transport sector, this is done through the impact of city form components on citizen’s travel behavior. Therefore, in urban low carbon development theory, the reduction of cavalry production through changes in urban form elements is considered. This paper investigates the effects of urban form components on Tabriz Metropolitan travel behavior. Tabriz’s single-engine city form makes maximum use of personal cars for city trips resulting in increased carbon emissions in Tabriz’s urban air. Therefore, the impact of urban form elements on car-driven travel behavior has been selected as the most fundamental pillar of low carbon studies in Tabriz. The results of   the   application   of the Moran method show that the criteria used are mainly clustered and therefore have spatial autocorrelation and it is very useful to use location- based regression methods such as geographic weight regression. The results of this method show that access to metro stations in Tabriz metropolitan area the coefficient of importance of 0/40 have the least relationship with urban travel behavior, respectively and the two factors combining urban land use and business center access with a factor of importance of 0/54 are most important in urban travel behavior. It was therefore concluded that the components of urban form are more important in urban travel behavior and it needs to get more attention form city managers and planners in shaping a low-carbon city.
Sepideh Raeisi Qanavati, Marzieh Moghli, Mohammad Ebrahim Afifi,
Volume 23, Issue 71 (12-2023)
Abstract

With the increasing expansion of urbanization and the increase in the population of urban dwellers and the resulting problems, it is becoming increasingly necessary to provide facilities for the well-being of citizens. Today, the importance and role of urban furniture in urban service and beautification is not hidden from anyone, and urban furniture is one of the essential and inseparable components of cities. The purpose of this study is to investigate the role of urban furniture in improving the quality of urban environment, Bandar Abbas city, which has been done by descriptive-analytical method. Data collection has been done using two methods of library and field (questionnaire). The statistical population of this study consists of citizens of Bandar Abbas, 384 of whom were selected using Cochran's formula and research questionnaire by simple random method. Distributed among them. The research questionnaire was created by a researcher whose validity was confirmed by experts in a formal and superficial manner. And its reliability was confirmed using Cronbach's alpha coefficient. In order to achieve the objectives of the research, single-sample T-test and simple linear regression were used in SPSS25 software environment. The research findings showed that the urban furniture of Bandar Abbas is not in a good condition in terms of fitness and beauty, optimal distribution and citizens' satisfaction with the furniture of Bandar Abbas. The study of research hypotheses showed that urban furniture has a positive and significant effect on the quality of urban environment and its components, ie beautifying the environment, creating a suitable environment for social activities and increasing the vitality of the urban environment.
Zeynab Taghvaee, Sadroddin Motevalli, Gholam Reza Janbazi Ghobadi, Jalal Azimi Amoli,
Volume 23, Issue 71 (12-2023)
Abstract

Irregular and unstable urban development has increased marginalization, destruction of urban green areas and increased demand for urban land, which in itself has led to the disappearance of urban green spaces and land use change of such lands and is possible. Cause certain global environmental problems such as the formation of urban heat islands, because urban green space is one of the important models in achieving sustainability in urban space and the physical and natural fit of the city. At the same time, the protection of the environment and urban green space is the main pillar of sustainable development, which has been discussed in developed countries for decades and in recent years has been highly regarded by planners in developing countries. The present study, in terms of Weberchr('39')s applied and developmental purpose, is a descriptive-analytical descriptive survey or field study in which the researcher-made questionnaire tool is used and the existing maps of urban green space are used. The purpose of this study is to explain the role of green space in coastal cities in attracting tourists with the approach of sustainable environmental development in the coastal city of Noor, but in addition to the main purpose of the sub-objectives, the researcher The results also increase the per capita urban green space, increase the number of urban tourists, prevent environmental damage and increase the income of the citizens of the coastal city of Noor.

Mr Hamed Baniamerian, Dr Alireza Andalib, Dr Laala Jahanshahloo,
Volume 23, Issue 71 (12-2023)
Abstract

Urban regeneration as a comprehensive approach to the restoration of historic centers, despite maintaining the main features of the space seeks to improve all the qualities of historic sites and tries to motivate development drivers in the process of historical reconstruction.  The aim of this study was to identify the most effective components of regeneration stimulating the development of historical centers following the adaptation of relationships between criteria on the historical core of Kermanshah.  The method of data analysis in this study is quantitative and the components of the theoretical framework in the form of a researcher-made questionnaire with closed questions, subject to validation of experts in the old context of Kermanshah (15 people in a purposeful and accessible way)  Is located.  The reliability of the questionnaire was evaluated using Cronbach's alpha method and SPSS software and the value was /76.  It is a sign of acceptable level of reliability.  Also, the adaptation of the components to the studied texture was plotted in the form of two decision trees with the help of Rapid Miner software, and the importance rank of the components was extracted.  The results show that the central core of the historical context of Kermanshah, due to the high volume of physical destruction, requires the formation of new construction while developing infrastructure, and the main existing functions require the reproduction of historical identity.  It also seems necessary to inject the flag project in combination with the development of accesses and local area network infrastructure in order to change the mood of the place.  Another result is that development drivers should define and refine the role of the historical core in the city as a whole and connect it as a development driver to the surrounding context in an interconnected network.  The results of applying the conceptual model of the research to the historical core of Kermanshah, confirm that the main criteria of the model are to a large extent applicable to the historical center of Iranian cities.

Fahimeh Shakeri, Gholamabbas Fallah Ghalhari, Hashem Akbari, Zahra Hejazizadeh,
Volume 24, Issue 72 (3-2024)
Abstract

In this research, the sensitivity of the meteorological elements (such as mean temperature, relative humidity and wind speed) to different physical parameterizations in the numerical forecast model (WRF) was evaluated to simulate the climate of the city and adjust the Urban Heat Island of the study area.To study urban environmental issues, the Urban Canopy Model (UCM) was coupled to the WRF model. Several experiments were performed to achieve optimal configuration for simulation in the period from 18-21 August 2016 in the stable atmospheric conditions in summer. Selection of the most appropriate configuration with the least error is proposed as an appropriate setting for urban climate simulations and the study of Urban Heat Island (UHI). Increasing surface reflections to reduce UHI in the range was applied. Two indices of Root Mean Square Error (RMSE), and Mean Bias Error (MBE) were used to evaluate the predictive performance of the model and its corresponding observational values. The results showed that in the province of Tehran, in general, all configurations estimate the air temperature and wind speed less than real and relative humidity more than the actual value. In Alborz province, all configurations estimate the air temperature and wind speed more than real and relative humidity less than real value. By increasing the reflection of urban levels, the mean temperature of Tehran and Alborz provinces decreases 0.6 and 0.2 ° C, respectively. Wind speed, especially in urban areas, increases somewhat. We also see an increase in relative humidity (especially in urban areas) in the studied areas.


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