Showing 43 results for Ann
Hosseinali Roohbakhsh Sigaroodi, Mostafa Karampoor, Hooshang Ghaemi, Mohammad Moradi, Majid Azadi,
Volume 19, Issue 55 (12-2019)
Abstract
Investigating the variability of the spatial-temporal pattern of rainfall, which can lead to climate change, due to its strong impact, is of interest to various scientists. For this purpose, after receiving the daily precipitation data of 27 stations for the period of 60 years (2010-1951), its quality and the total monthly precipitation and statistics necessary for the continuation of the research process such as mean, coefficient of variation, skewness, probability estimate of 20% The upper limit of the maximum and minimum rainfall average were calculated experimentally for a period of 60 years and two 30-year periods (1951-1980 and 1981-2010) and two periods of 10 years (1951-1960 and 2010-2001) for each of the spring and summer seasons Was calculated. The studies show relatively modest variations in spring and summer precipitation patterns on the Caspian coast, Northwest-West, 30 and 10 years old, compared to the 60-year, 30-year, and 10-year periods. In general, the mean of precipitation decreases from north and northwest to south and south east and increases the amount of coefficient of change and skidding. Except for the Caspian Basin, in the remaining stations, the average spring precipitation is higher than the average summer rainfall. There is a clear difference in the long-term characteristics of precipitation and its changes. It is worth mentioning that the increase in the coefficient of variation of the 30-year and 10-year periods is comparable to the corresponding periods at all stations, which indicates a decrease in the monthly and seasonal mean of spring and summer precipitation, which confirms the results of the decade and the first decade of the second decade. The greatest decrease occurred in the northern and western parts. In the second 30 years, the incidence of dry sunshine and drought-affected stations has increased. Therefore, it confirms the climate change for the Caspian and the Southwest coast.
Amin Kooshki, Mr Mehrshad Toulabi Nejad,
Volume 20, Issue 56 (3-2020)
Abstract
In this research, the development of cross-border cooperation (CBC) to study the factors and stimuli affecting the stability of the ::::union:::: in the border regions were discussed. The aim of the present study, functional and combination method (qualitative and quantitative) is. The data-gathering tool was a questionnaire and interview. The statistical community included various experts in the fields of political science, geography, economics, sociology, law enforcement experts, governorate and governorate in Sistan and Baluchestan province. Using a targeted sampling, 70 experts were selected. For analysis of data, descriptive tests and binary logistic regression model (LM-Newton-Marcard-Raphson method) were used. The results showed that in the area of planning for unity in Sistan and Baluchestan except for the determination of the right of the Hirmand River in the Sistan region, which was concluded with the country over a period of time, the plan was not approved or implemented, and among the five factors Economic, social, cultural-religious, institutional-structural and political security, three economic factors (0.478), political-security (0.473) and cultural-religious (0.363) have the most effect on the stability of unity of border regions in Studied area. The results of this study can be used to develop border cooperation cooperation and coherence stability in different border regions of Iran.
Dr. Mohammad Eskandari Sani,
Volume 20, Issue 56 (3-2020)
Abstract
One of the UN Millennium Development Goals is women's participation in urban management. This article develops a theoretical framework for analyzing the relationship between community- based planning and women participation in cities. In this regard, collective action, social capital, and neighborhood as location for community planning are used. The framework identifies a series of variables that are theorized to affect a community's capacity to women participation. Method of study is analytical descriptive. The statistical population is women over 18 years old in Nematabad neighborhood. 29 questionnaires are distributed randomly. According to the findings it is recommended that, the strategy for development of community-based planning can be very effective in urban planning system in Iran as this strategy for host communities could bring about social welfare, justice, and socio- economic suitability. Also Social Network, marriage, education level, employment are the most important elements that affect women's participation in the development of community-driven development programs.
Amin Shahsavar, Mousa Kamanroodi, Taher Parizadi, Mahlagha Abolghasempor,
Volume 20, Issue 57 (6-2020)
Abstract
Urban neighborhoods play a major role in urban life and decline. The transformation of the relationship between mass and space and the changing in population and construction densities due to changes in lifestyle, population growth and ... has caused a major transformation in the spatial structure of the neighborhoods and, finally, amount of social communication and interaction at the local level. These inevitable changes in the neighborhood and the city have caused major problems in which according to the relationship between the spatial and social structure of urban neighborhoods, it is necessary to improve the situation on the other side by interfering and changing in each of the fields. In the present research, neighborhood-centered spatial development strategy and plan in Ferdowsi neighborhood have been investigated. This research in terms of purposing is applied; in terms of nature and method is prescriptive; according to type of data is quantitative and qualitative; and in terms of time, is cross-sectional. In this research, by using the AIDA technique and based on strategies and decision areas, a strategic project has been presented in order to empowerment of Ferdowsi's neighborhood.
Ali Bahri, Younes Khosravi,
Volume 20, Issue 58 (9-2020)
Abstract
Considering the vast application of sea surface temperature in climatic and oceanic investigations, this parameter was studied in Oman Sea from 1986 to 2015. The SST was surveyed using trend analysis and Global and local Moran’s I spatial autocorrelation. In trend analysis, the Mann-Kendall test was used to determine the trend of SST changes and the Sen's Estimator method was used to examine the slope of the changes. Using these methods, it was found that during January, February and December, there was no significant ascending trend in SST values, and only parts of the Strait of Hormuz had a significance descending trend. On the other hand, there was no significant descending trend in March, and the ascending trend in the SST was seen in the southern part of the Oman Sea. Other months of the year had a significant ascending and descending trend in different parts of the Oman Sea, which October had the highest ascending trend. In the annual time scale, it was also found that the southern parts of the Oman Sea had ascending trend in the SST value and Western parts had a descending trend. The occurred changes in the high amounts (positive and negative) were corresponding to the significance ascending and descending trends. The results of Global Moran for the annual time scale indicated an ascending trend of autocorrelation values and cluster patterns of SST data over time, using the local Moran analysis, it was found that warm clusters of SST are increasing in the Oman Sea, and on the other hand, cold clusters of this parameter have been reduced over 30 years. According to the results of trend and spatial autocorrelation analysis, it has been found that SST have been increasing in different parts of the Oman Sea during 30 years, so climate change and global warming may have affected this region.
Parisa Ahadi, Shahriar Khaledi, Mahmoud Ahmadi,
Volume 21, Issue 60 (3-2021)
Abstract
Dust is referred to sediments of less than 100 microns in size which are transmitted as suspended particles. Dust storms are events which naturally occur in arid and semi-arid areas, especially in subtropical latitudes. One of the most known sources of dust is the west of Asia, including Arabian Peninsula, Syria, Iraq, and Iran, especially Khuzestan Province. The purpose of this study is to investigate the frequency and trend of dust phenomena on hourly, monthly, seasonal and annual scale between 1995 and 2015 in Khuzestan Province. The method in this study is based on statistical computation of dust parameters and also the trend analysis of data based on Mann-Kendall test and spatial distribution maps of dust phenomena. The results suggests that 78.57 percent of dust event are occurred between 9.30 am to 15.30 pm local time, concurrent with peak of sun radiation and earth surface warming, dryness of soil and local pressure difference. The hourly trend analysis is increasing and significant in all hours and the highest increase occurred at 9.30 pm to 12.30 pm.49 percent of dusty days occurred in June, July and May and also 73 percent of them are in spring and summer as following from temperature increase and water and soil resources drying in the province. The seasonal and annual spatial distribution of dust indicates that most of dusty days in all seasons are located in west of province which suggests dominance of external sources as the main source of dust and the importance of topography factor in this area.The Z value spatial analysis suggests high increase of dust event in recent 20 years in southeast, south and central areas of the province and also on last hours of day which demonstrator development of internal sources activities in increasing trend of dust event in recent decades.
Mehdi Feyzolahpour, Marziye Manafi, Reza Khoshraftar, ,
Volume 21, Issue 62 (9-2021)
Abstract
Reviewing the damage caused by landslide proves the need to examine the factors influencing the occurrence of this phenomenon and the prediction of its occurrence. Therefore, the purpose of this study was to improve the prediction of landslide occurrence in the Taleghan watershed using Shannon Entropy Theory. Among the factors influencing the occurrence of landslide, ten factors of elevation, slope, slope direction, geology, vegetation, land use, water congestion, fault, road, rainfall as independent variables and sliding zones were considered as dependent variables. Then, using the entropy index, weighing was calculated for each of these factors based on their effectiveness, and the value map of each parameter was calculated according to its weight. In the next step, by mapping these maps with the map of landslides, a risk zoning map for the basin was drawn up. After calculating the Shannon entropy index, it was determined that 86% of the landslide area is in three medium-risk, high-risk and highly hazardous areas, indicating that the final map of the zoning is based on the correct method. Also, the total quality index (Qs) in this method was equal to 2.3, which indicates that this method is more reliable and more suitable for zoning of landslide hazard in Taleghan watershed. The accuracy of the method (P) for the entropy model was equal to 0.24, indicating a more appropriate resolution of the risk zones in this method.
Arash Sadri, Mahmod Heidari, Arezo Bangiyan Tabrizi,
Volume 21, Issue 62 (9-2021)
Abstract
The city health, social and physical environment with all facilities that perform life activities with ease and efficiency makes possible. Urbanization, followed by its specific problems such as environmental degradation, water pollution, air, soil, increase mental illnesses and civil society more than ever threatened. This has led to today's urban design and urban management many challenges in the field of population, housing shortage, pollution and environmental degradation, social conflicts and provision of services and facilities infrastructure is facing. In this regard, the plan to create a healthy city public participation plays an important role in cities. In fact, a healthy city, city to realize a healthy person. The urban design approach and engage in healthy people. This cross-sectional study and data collection instruments and survey was conducted in two ways. According to the results, the neighborhood Shiite index of the five health (social, economic, environmental, health and culture) desirable standards Healthy City away in some areas also need to redesign and greater participation authorities and people in the neighborhood felt. The paper solutions to create healthy city with the participation of the people through the realization of indicators and metrics have reached a healthy city.
Nafise Marsousi, Majid Akbari, Nazanin Hajipour, Vahid Boustan Ahmadi,
Volume 21, Issue 63 (12-2021)
Abstract
According the increasing population, especially the urban population in the world and increasing environmental pollution caused by it, The need for urban planning and management approaches based on indicators such as Healthy Cities approach seems inevitable. The purpose of this paper is to analyze the efficiency and ranking of healthy city indicators through 36 indicators (socioeconomic, health services, environmental and health care). research method applied research is descriptive, analytic and development. To analyze the data from the non-parametric linear programming technique of data envelopment analysis, cross ineffective, models and software Dea slover Shannon entropy is used. The geographic area of this study is Khuzestan province and its statistical population is 22 cities according to the census of 2016. The results of this research show that in terms of relative efficiency of Ahwaz city due to the centrality of the province and the availability of infrastructure and sanitary services with a relatively high distance with the highest performance and high level of performance was in the first rank. And the cities of Dezful, Shosh, Khorramshahr, Shoshtar, Abadan, Masjed Soleyman and Behbahan were selected as semi-efficient cities. Finally, it can be concluded that in terms of having the indicators of the healthy city, most of the cities of the province are Inefficient (64%).
Mansor Azizi, Rasol Darskhan, Mohamadreza Poormohamadi,
Volume 22, Issue 64 (3-2022)
Abstract
The Urban Development Strategy Plan is an attempt to take into account the potential and talent capacities of the city in an institutionalized and systematic framework and the construction of a clear future as one of the current concerns that identifies strategies for creating urban sustainability conditions in good governance. The main idea of this policy is that it is imperative for all cities in an increasingly competitive and increasingly global economy to have a clever and clear strategy for how its land is positioned to minimize negative effects, predict potential shocks, and exploit the comparative potential and Competitive In such a situation, making decisions for urban issues and planning for the future is much more difficult. The purpose of this study is to evaluate the urban development strategy of District 22 as one of the tools for implementing urban governance paradigm. The research method is descriptive-analytic. The tool for evaluating AHP's hierarchical analysis technique is implemented according to the views of the experts and stakeholders. The results of the research indicate a significant difference between the design of CDS and its implementation phase.
Dr Ahmad Aftab, Mr Ali Majnoony, Mr Akbar Houshmand,
Volume 22, Issue 65 (6-2022)
Abstract
The present study aims at identifying geopolitical components affecting the spatial planning of border regions in the East Azarbaijan province. The research is an applied research that has been carried out using statistical tests, path analysis and Promethean decision making model. The results of the research showed that social variables with r = 0.811, r = 0.662, political, r = 0.851, ranked first to third. The results of path analysis also showed that political components with 0.96, social and cultural components with 0.93 and economic components with 0.36, have a direct effect on the realization of eastern Azarbaijan province boundaries. Finally, the results of the Prometheus model showed that Sardasht, Maku, Oshnaviyeh, Piranshahr, Orumiyeh, Salmas, Khoy, Siah Cheshmeh and Sardasht, respectively, are in the first to the nineteenth priorities. Therefore, according to the findings of the research, it is suggested that security and security measures are implemented with economic, political, and socio-cultural approaches.
Engineer Amenh Khosravi, Doctor Mahmood Azari,
Volume 22, Issue 66 (9-2022)
Abstract
The study of meteorological characteristics and its variability is important in assessing the climate change impacts for water resources management. Trend analysis of hydrological and meteorological time series is a method for determining the change in climate variables that is performed with different parametric and non-parametric methods. In this research, the annual, seasonal and monthly trends were analyzed regarding rainfall and temperature time series for 1986-2017 in 28 stations of Kashafroud basin in the Northeast of Iran. For this purpose, the annual, seasonal and monthly trends were evaluated using non-parametric Mann Kendall and Pettitt test at 95% level significance. The results showed the trend for the monthly maximum temperature in spring and winter and also the annual trend for all stations was increasing, whereas the summer and autumn pattern differed. The trend of minimum temperature in all seasons and stations do not have a uniform pattern. The results of precipitation trend indicated that the annual precipitation of the basin had not changed and did not have a significant trend in 5% level of significance. Precipitation of the basin in the winter decreased. There was an increasing trend in the Southern half of the basin in autumn. The noticeable decrease of precipitation in winter season especially during January and February with an increase in November can be a serious challenge for water resource management of basin during the dry season.
Sirous Rahimzadeh Sisibig, Alireza Shichaslami, Kianoosh Zakerhaghighi,
Volume 22, Issue 66 (9-2022)
Abstract
In this regard, the main purpose of this study is to investigate the role of non-governmental organizations in improving the urban management system of Tehran metropolis in six physical, functional, social, economic, environmental and institutional dimensions. The research method was descriptive-analytical and the data collection method was documentary and survey. The research tool was a questionnaire. The statistical population of the study was the citizens of Tehran and the sample size was 383 people. The data were analyzed using T-test and confirmatory factor analysis. The results show that the level of significance in all dimensions is lower than 0.05; Therefore, according to the average scores, NGOs in Tehran have mainly played a greater role in the social and environmental dimensions and in the economic and institutional dimensions in the form of an intermediary relationship between urban management and citizens. In the framework of confirmatory factor analysis, comparison of explanatory variance by six factors showed that social, environmental, functional, physical, economic and institutional factors have the highest variance in explaining the role of factors in the urban management system of Tehran. A total of 20 main factors in explaining the role of semen were confirmed; Thus, it was found that the Samanids, given that they are in direct contact with citizens, can accurately reflect urban issues and realities to the urban management system; For this purpose, it is suggested that first, according to their different functions, the subdivisions should be classified into specialized subdivisions on various urban issues, and also their position in the urban management system should be upgraded.
Dr Gholamabbas Fallah Ghalhari, Fahimeh Shakeri,
Volume 22, Issue 67 (12-2022)
Abstract
In this Research, the maximum temperature of selected stations in Khuzestan province and the numerical values of 8 extreme climatic indicators belonging to the Expert Team on Climate Change Detection, Monitoring and Indices (ETCCDMI) were used in the statistical period of 1987-2017. To analyze the trend of extreme climatic indices, the Man-Kendall test was used and to estimate the slope of the trend line, the Sen’s estimator was used. In this study, given the importance of global warming that severely affected all aspects of life, the authors explore the relationship between climatic factors and maximum temperature in Khuzestan province until to rely on it, and ones can predict and forecast air temperature at this region. For this purpose, the temperature of selected stations in Khuzestan province and numerical values of 8 climate indicators in the period 1987-2014 have been used. To understand the relationship between climate indicators and maximum temperature at 1 to 12 months of delays, Pearson’s correlation coefficient was used. The results showed that most of the extreme climatic indicators in the study period had a significant trend. The TX10 and TN10 indices have had negative trend in most stations and the TX90, TN90, TXx, TXn, TNx and TNn indices have had positive trend. According to the results of correlation coefficients can be concluded that all studied signals have a significant effect on the province's maximum temperature. The correlation between maximum temperature and indices PNA, TSA, WHWP, WP and NAO, was more than the other climate indicators. Results also showed that the entire indices except NAO have significant positive correlation with maximum temperature of the province. PNA index with a delay of 10 months has the highest positive correlation with maximum temperature of study area.
Mina Mirian, Mostafa Karampoor, Mohamd Moradi, Houshang Ghemi, Behrouz Nasiri,
Volume 23, Issue 68 (3-2023)
Abstract
The purpose of this study is to determine the long-term variations in rainfall data as well as to identify wet and dry periods of 35 synoptic stations in Iran. In order to know the variation of rainfall in studied stations, average maps, coefficient of variation and skewness were drawn. Then, using the Mann-Kendall test, the significance of the trend on each station was tested at 95% confidence level. Finally, wet and dry periods were identified by using 20% high and low extreme rainfall during the 50-year study period. The results show that the general model of the country's regime is that the rainfall levels from the north to the south-east and from the west to the east of the country are reduced. The lowest values of the coefficient of variation and skewness are related to the northern regions especially the Caspian seaside and the highest amounts are in the southern regions, especially in the south and south-east. In general, the results of the Mann-Kendall test show that rainfall data in the seasonal scale, with the exception of several synoptic stations, do not show a significant trend. Most wet periods occur in the spring and the lowest in summer and the highest dry periods occur in the autumn and the lowest in spring. The number of droughts in the cold periods is significant. Also, the frequency of occurrence of dry periods is more than wet periods.
Hajar Jahanshahi, Hamidreza Varesi, Masoud Taghavei,
Volume 24, Issue 74 (9-2024)
Abstract
In fact, the growth of urban consciousness is a wise strategy to drive urban development and control dispersion and drive urban growth toward sustainability. The purpose of this study was to evaluate the rate of Bushehr city area in terms of growth indices. In this regard, this research is a goal-oriented, applied-developmental one, and a combination of documentary, analytical, causal and survey methods. Reliability of the research instrument based on Cronbach's alpha coefficient of the research was 0.749 which is higher than 0.7 and is appropriate. The statistical population of the study is Bushehr inhabitants which according to Cochran formula is estimated 384 samples. According to the statistical population, the questionnaire was distributed randomly among the citizens. In order to compare between two regions, T-test with two independent samples was used for evaluation of urban smart growth in District 1 and 2 of Bushehr. In this test, the first option to be considered is the significance level while the significance level or sig between the two regions is less than 0.05 indicates a significant difference between the two regions and vice versa. Significance level analysis (0.000) shows that there is a significant difference between the two regions in terms of urban smart growth. Meanwhile, the mean of Region 1 with 3.21 was higher than that of Region 2 with 2.86. Although there is a significant difference in Bushehr region in terms of smart growth indices, this difference is not significant and in general Bushehr regions are not in a good position in terms of smart growth indices.
Faeghe Zirdabi Oskouei, Solmaz Babazadeh Oskouei,
Volume 24, Issue 74 (9-2024)
Abstract
The decline of social and economic status and functional and physical disorders of these contexts along with the very severe decline in the quality of the urban environment are among the reasons that have persuaded urban policymakers and planners to provide new strategies and solutions in the face of its problems. Accordingly, the futures research approach can keep peoplechr('39')s eyes open for possible future events, opportunities, and risks; Reduces ambiguities, doubts and erosive concerns of people, increases the ability of society and people to make smart choices. In this regard, the purpose of this study is to investigate the key drivers affecting the promotion of dysfunctional urban contexts with a future research approach in the Sartpooleh neighborhood of Sanandaj. This research is applied in terms of purpose and according to the studied components, the approach is descriptive-analytical method and environmental and Delphi scanning technique has been used to identify variables and indicators. Then, a semi-structured questionnaire was distributed among 45 experts in the field of urban issues. The data were analyzed using MICMAC software. The results showed that the urban system, especially in the worn-out tissue section of Sartpooleh neighborhood (in Sanandaj) is going through unstable conditions. Also, according to the analysis, 19 factors as key drivers such as authoritative management methods to renovate worn-out tissue, centralism, timely injection of funds when renovating worn-out tissue directly and variables focusing on improvement and renovation in comprehensive and detailed plans. Citizenschr('39') right to intervene in construction, paving the way for the entry of the private sector and balancing and achieving social justice were indirectly introduced to improve the quality and performance of worn-out structures.
Dr Mohammad Ebrahim Afifi,
Volume 24, Issue 75 (12-2024)
Abstract
Among the natural hazards, without a doubt, the flood is known as a natural disaster. In this research, Shannon entropy model was used to prepare a flood sensitivity map. First, 34 flood watersheds were selected from Firoozabad basin, and then these 34 points were classified into two groups. With 22 points, 65 percent of the points for training and modeling, and 12 points, 35 percent of the locations that were not used in modeling were used for validation. First, a map of the status of the floods was developed and Then, 10 factors, slope, tilt, lithology, land use, NDVI, SPI, TWI, altitudes, rainfall and distances from the river were selected as flood factors in Firoozabad basin. Prioritizing the effective factors in the occurrence of flood by Shannon entropy index showed that the NDVI layers (2.03), rainfall (0.00), distance from the river (1.89), SPI (385.1), elevation classes (999 (0/19), gradient with weight (0,932), lithology (478/0), TWI (379/0), and land use (280/0), respectively (0/184) have the highest and the least impact Flood events. Based on the results of the ROC curve, the predicted surface area under the curve with 35% of the validation data is equal (91.42%) and for the success rate with 65% of the equal education data (92.53%).
Mostafa Taghvaee, Sadroddin Motevali, Gholamreza Janbaz Ghobadi,
Volume 25, Issue 77 (6-2025)
Abstract
Cities occupy vast areas. These fields are composed of different topographic and morphological units. As cities develop and expand, their dealings with various units of topography and geomorphology and related topics increase. Geomorphological units are always associated with the dynamism of the natural environment. Any action for the development of cities in some way intersects with the mentioned dynamism and detachment, and consequently with morphological phenomena. In this approach, if some necessary principles and points are not observed, the morphodynamic balance of the environment will be disturbed and the great dangers of most of the equipment and facilities of the city will be threatened. Sometimes the intensity of morphogenesis is so high that it produces irreversible results. The present study is descriptive-analytical in terms of purpose and in terms of data collection method and in the form of a survey or field in which the researcher has made a questionnaire. The purpose of this study is to investigate the role of roughness in coastal city planning using a comparison of AHP and AHP FUZZY hierarchical analysis in Noor city. In addition to the main goal, The results showed that in the early stages of the planning process, simple methods can be sufficient when identifying development options as a focal point. Under these circumstances, the choice of advanced and technologically advanced methods does not necessarily produce different results. However, when planning needs to identify the spatial extent of the desired development area, it would be ideal to consider the intersection area proposed by both methods
Aliakbar Jafarloo, Monireh Ghofran, Sahar Nazari,
Volume 25, Issue 77 (6-2025)
Abstract
Considering the recent challenges of urban and rural areas of the country, in the previous years, urban and rural areas of Iran will face uncertainties and major issues. The purpose of the land and the elimination of the challenges of urban and rural issues in the country in the future requires identifying these issues and planning to fix or decrease its effectiveness. Therefore, in this research, using a futuristic approach that has a qualitative-descriptive approach, the purpose of the research was investigated. To achieve this goal, first, with the use of research literature and library studies as well as the help of 70 experts in various fields, first major issues in urban and rural development and land were identified in the horizon of Iran 1420. Subsequently, with the method of qualitative analysis and experts, the strategic scenarios of the country was presented to resolve the challenges of the country in the 1420 horizon. The results of the study showed that the country's study in the horizon of Iran 1420 with sudden abrupt disorders and increased uncertainty alongside economic, social, political, environmental, demographic, geopolitical, climate change, cyberspace, increase inequalities And there will be no predicted and untreated threats. In this regard, 20 future scenarios were designed and designed to address the macro issues presented in the research, which are designed and designed to challenge current assumptions and important questions for the future of the country. These scenarios show a number of strategic considerations for how to prepare the country to meet the developing needs of urban and rural community in the horizon of the country of 1420 in the face of a very dynamic and uncertain future.
