Showing 13 results for Zare
Dr. Mostafa Kabolizadeh, Dr. Sajad Zareie, Mr. Mohammad Foroughi Rad,
Volume 0, Issue 0 (3-1921)
Abstract
| There are various indicators to monitor and management of agricultural water resources in arid and semi-arid countries including Iran, some of which can be extracted directly in situ, and some can be retrieved using remote sensing technology and satellite images. Aim of this study is to propose the most appropriate and efficient indicators of agricultural water resource management for achieving maximum production and maximum water efficiency using remote sensing technology, therefore, Crop Water Stress Index (CWSI) and Surface Energy Balance Algorithm (SEBAL) were used to estimate Evapotranspiration (ET). In the first step, ET rate was calculated using SEBAL algorithm for six Landsat 8 satellite images related to the wheat growth period. Then, zoning of this index was done in the range of zero to one, in four categories of very low, low, medium and high, which respectively indicate the lowest to the highest amount of ET. In next step, CWSI was calculated based on Idso equation, and its results show different changes both in cold season and in warm months. Comparison of ET and CWSI shows a significant relationship between these two indices in warm months, while in cold months, no significant relationship can be seen. These findings along with the established relationship between ET and CWSI can inform water management strategies in arid environments for sustainable crop production. |
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Hossein Zarean,
Volume 15, Issue 37 (9-2015)
Abstract
Trees can record long-term effects of climate variables. Using dendroclimatology knowledge, we can reconstruct such variables especially for areas which have short-term climatic data. For this purpose, we reconstructed the temperature degree of the warm months (May-September) through annual rings width of Quercus persica and regression analysis of data obtained from stations on Dena region. With this goal in mind, three growth heights were selected in Dena Forests and 52 growth samples from 26 bases were extracted and their growth rings width were measured with LINTAB5 with an accuracy of 0.01 mm. After cross dating stage, to eliminate non-climate effects, May to September temperature average and tree rings time series were standardized. The Residual Chronology (RES) calculated by ARSTAN was calibrated with temperature degree of the period 1882-2011 and its positive and significant correlation with the width of growth rings was confirmed. Based on the relations between the calculated chronology and joint statistical temperature degree data, the reconstruction of temperature degree of the warm seasons for over a century was performed and it was found that in the last three decades, region's average temperature of May to September had an increase in comparison to the average of the previous century.
Dr Abazar Solgi, Dr Heidar Zarei, , ,
Volume 18, Issue 50 (3-2018)
Abstract
Estimating and predicting precipitation and achieving its runoff play an important role to correct management and exploitation of basins, management of dams and reservoirs, minimizing the flood damages and droughts, and water resource management, so they are considered by hydrologists. The appropriate performance of intelligent models leads researchers to use them for predicting hydrological phenomena more and more. Therefore, in this study, the Gene Expression Programming (GEP) and Support Vector Regression (SVR) models were used to model monthly precipitation of Nahavand City. In this study, precipitation, temperature, and relative humidity data were used in a 32-year period (from 1983 to 2014). The results showed that the same and good performance of both models (R2= 0.92), but according to different evaluation criteria, GEP model showed a little better performance (RMSE= 0.0478 and 0.0486), while the running GEP model is so easier than the SVM model. Totally, it can be said that GEP model had been suitable for modeling monthly precipitation of Varayeneh station in Nahavand City. Finally, the monthly precipitation was predicted the GEP which showed a decrease in precipitation in compared with previous months.
Samaneh Dousti, Zohreh Davoudpour, Leila Zare,
Volume 21, Issue 62 (9-2021)
Abstract
Urban neighborhoods are one of the vital elements of each city and the culture of urban residents is concealed in the texture and sinew of that .The advent of new technologies in urban life and percipitance of designers for construction of buildings led to reduce of fixation sense about their living environment and decrease social interaction. once the historical districts are regarded as symbols of security, comfort and authenticity of the residents, due to inefficiency and interruption of their structures, suffer instability and displacement of their residents.According to this, instability and displacement of inhabitants to districts of historical value are known as the main problem in these neighborhoods. The purpose of this study is to identify the effective factors of authenticity in historical textures of “Ferdowsi” neighborhood located in distrct 12 of Tehran by phenomenological approach.method. For this purpose, eight persons of this neighborhood were selected by purposive sampling method were collected through questionnairs and profound individual interviews.After recording the interviews, they were implemented in Maxqda qualitative data analysis softwarethe data and analyzed by seven-based Colaizzi methods.Authenticity as one of the individual characteristics will have an effective factor in educating people to live as citizens in the external society and will have a controlling role on human behavior and performance in society. Therefore, preserving and protecting valuable historical monuments, buildings and places. In a neighborhood that is subject to the behavioral and functional characteristics of human beings, in addition to the permanence and sensory richness of the permanence and sensory richness of the space, it will be necessary to transfer originality from one generation to another.
Dr Ali Amiri, Mandana Masoudi Rad, Somayeh Bakhshizadeh, Hosein Zaree,
Volume 22, Issue 65 (6-2022)
Abstract
Religious tourism, as one of the ways of development, cultural exchange and social interaction between nations can have many benefits for any society today. Enjoying indigenous cultures and local religious ethics is an important factor in attracting tourists. The city of Khorramabad has special religious ethics, such as the celebration of gellmalli in the Ashura Day and the chehell manbarr in Tasoa day, which can have a profound effect on this. Therefore, the present article, using descriptive-analytical method, and questionnaire, interview and observation tools, and with the assumption that indigenous religious-cultural ethics increase the value and importance of tourist attractions at the destination, has attempted to survey the role of chehell manbarr in tourism development of Khorramabad city. The results of one sample T-test at the significant level of 0.000 indicate the impact of all three indicators of abilities and potentials in the chehell manbarr, visual beauties and custodians of urban organizations such as Culture and Islamic Guidance, Municipalities and other related organizations Is above average; Also according to the results of one-way analysis of variance at the error level below 0.05% , it is vary the effect of the index of abilities and potentials in the chehell manbarr ceremonies, and the effect of metropolitan organizations such as culture and Islamic guidance and municipality according to the educational levels of the respondents. However, the results of one-way analysis of variance for the extent of visual beauties on tourism inclination are similar at the educational level of the respondents. The results of regression analysis at the significant level of 99% show that all three variables of keeping of urban organizations such as culture and Islamic guidance during the chehell manbarr ceremonies, the abilities and potentials in the chehell manbarr ceremonies and the creation of visual beauties have a direct and significant effect on the tendency to Tourism and motivation for future trips.
Vahid Riahi, Saeid Nasire Zare,
Volume 22, Issue 66 (9-2022)
Abstract
Land surveying to increase crop production and productivity is nowadays considered as one of the alternative approaches in agricultural development and the need to address this issue especially in rural areas where their income is highly dependent on agriculture is of great importance. Is high. Agricultural development is one of the priorities of agricultural planning and requires such development to identify the effective factors that govern it. The purpose of this study was to evaluate and evaluate the environmental capabilities of olive cultivation in Tarom city and to analyze the location of its producing rural areas. Hence, from altitude, slope and slope status as terrestrial parameters and three climate parameters as relative rainfall, temperature and relative humidity data from 11 meteorological, synoptic and rain gauge stations with appropriate statistical period (1375-1395) and A common time base was used for climatic zoning. The results showed that Tarom city is in good condition for olive cultivation, 21.2% of the total area of the study area is suitable for olive cultivation, most of which is located in the middle districts of the city. Located in olive-growing lands, these areas produce 74.8 percent of the olive in Tarom, due to its olive-growing potential.
Zahra Hejazizadeh, Sharifeh Zarei, ,
Volume 23, Issue 69 (6-2023)
Abstract
Abstract
In recent years, attention has been paid to climate change, which could be the result of economic, social, and financial losses associated with extreme weather events. The purpose of this study is to investigate the variation of extreme temperature and precipitation in Kurdistan province. For this purpose, daily rainfall data, minimum temperature and maximum temperature of 6 stations were used during the statistical period (1990-1990). And their changes during the period (2041-2060) using the universal HadGEM2 model under two scenarios RCP2.6 and RCP8.5 and the LARS-WG6 statistical downscaling were investigated. In order to study the trend of climatic extreme indexes, rainfall and temperature indices were analyzed using RClimdex software. The results showed that during the period (2016-1990), hot extreme indicators have a positive and incremental trend. This trend is significant for the "number of summer days" and "maximum monthly of maximum daily temperature" indicators. This is while the cold extreme indexes had a decreasing and negative trend. This trend was significant only for the "cold days" index. Extreme precipitation in Kurdistan province has a negative trend in most stations. ،this trend is significant at most stations, that indicates a reduction in the severity, duration and frequency of precipitation during the study period. The results of the climate change outlook also indicate that the temperature will increase over the next period and rainfall will decrease.
Hadi Zare Khormizie, Hamid Reza Ghafarian Malamiri,
Volume 23, Issue 69 (6-2023)
Abstract
Knowledge of rangeland vegetation characteristics as well as factors affecting it in environmental planning, land management and sustainable development is very important. However, regional and up-to-date maps of pasture vegetation cover are not always available. In this study, in order to plot the vegetation cover percentage of the rangelands and monitor its changes in drought and wet periods, NDVI products of MODIS sensor during the years from 2000 to 2017 with a spatial resolution of 250 m and a 16-day time resolution, and The SPI drought index were used. The study area is the part of the rangelands located in the Southern province of Yazd. In 2013, in order to provide ground truth data, a field work was done to take the sampling rate of vegetation from the rangeland level in the study area. According to the results, the NDVI index has a good ability to map vegetation cover, so the coefficient of determination (R2) between this index and the sample points was 0.71. Based on the results, the average vegetation cover of the studied area was 11.3% during the years 2000 to 2017. The highest and lowest amount of vegetation cover in the study area was in 2000 and 2002, with moderate mild conditions and very severe drought, respectively (14.6% and 9.2% respectively). The most important factors influencing the vegetation cover in the study area are rainfall and drought periods, so that the coefficient of determination (R2) between the SPI drought index and the average vegetation percentage was 0.85. In general, based on the results there is a high potential for assessing and monitoring rangeland vegetation changes using satellite data and remote sensing technique.
Ghodrat Zare Andarian, Hossein Zabihi, Saeid Kardar,
Volume 23, Issue 69 (6-2023)
Abstract
Citizenship is a set of rights and duties a citizen enjoys because of his or her country of residence. Municipal law is a set of laws, rules and regulations that govern the interconnection of citizens and city departments in local and urban affairs, and explain the duties of overseers of councils, municipalities, and other city institutions; And planners 'and architects' awareness of the rights of citizens is one of the influential components in the process of urban architecture planning which is discussed in this article. Contemporary theories of urban law have led to a new military framework based on the concept of "right to the city" about urban life; if general framework can be understood in the context of the general concept of "right to the city", the following formulation from the Eiken set of laws on the concept of citizenship. It provided the architectural and urban planning rights: 1. the right to allocate; 2. the right to participate; 3. the right to centralization; Right of residence The right to habitation; 6. The right to individualization in socialization. Finally, the relationship between these components and their characteristics with the degree of their relevance and relationship with architectural and urban rights is presented.
Mr Abazar Solgi, Dr Heidar Zarei, Dr Safar Marofi,
Volume 24, Issue 72 (3-2024)
Abstract
Different methods are used for baseflow separation, filtering method one of these methods. In this study, the filtering methods with different algorithms, inclusive One-Parameter, Two-Parameter, Three-Parameter, Lyne & Hollick, Chapman, Furey & Gupta, Eckhardt and Ewma used for daily baseflow separation of Kahman karst spring in Aleshter county. The statistical period used in this study was a period of 27 years. The Isotope content method used as the main method for baseflow separation. Samples analyzed at the Mesbah Energy Company laboratory. Each algorithm has different parameters. First the parameters of each algorithm optimized based on the isotopic content method in the water year of 2017-2018. Then the optimized parameters used for the period 27 years. At the end, using the evaluation of different critical compared to the different algorithms. The results showed that the Eckhart algorithm performs better than other algorithms. This algorithm estimated baseflow and surface water indexes, respectively 81 and 19 percent.
Miss Elham Zare, Mr Akbar Abdollahzadeh Taraf,
Volume 24, Issue 73 (6-2024)
Abstract
Today, attention to the tourism of historical contexts has been recognized as very important in order to promote socio-economic progress and to recognize the historical values and cultural identity of each region. Therefore, this study was written with the aim of identifying the causal pattern of tourism promotion criteria in the historical context of Tabriz. The research is applied in terms of purpose and descriptive-analytical in terms of method. The statistical population of the study consisted of experts in the field of research, 15 of whom were selected through targeted sampling. The collection of required information in this research has been done using library and field methods and Fuzzy DEMATEL method has been used to analyze the research data. The results of this study showed that among the identified criteria, the primary element criterion was identified as the most effective criterion and also as the most important criterion for promoting tourism in the historical context of Tabriz. Other results of this study include the causal model of each of the sub-criteria, among the sub-criteria of primary elements, historical criterion, among the sub-criteria related to secondary elements, accommodation facilities, and among the sub-criteria of favorable tourism space. They were identified as the most influential sub-criteria.
Keywords: Tourism, Historical context, Fuzzy DEMATEL method, Tabriz.
Dr Mahdi Charaghi, Dr Hossein Tahmasebi Moghaddam, Master's Student Mohammad Reza, Nemati, Phd Saeed Nasiri Zare,
Volume 25, Issue 78 (9-2025)
Abstract
The advancement of tourism in any region necessitates a thorough understanding of the area's potential, alongside the provision of requisite facilities and services for tourists. Effective planning at all levels is essential to realize successful tourism development. This research investigates the challenges associated with service provision and ranks tourist destinations based on their tourism potential in Zanjan Province, Iran. The study employs a mixed-methods approach, integrating qualitative and quantitative techniques, with data gathered through interviews and questionnaires. Interview data were analyzed utilizing MaxQDA software, while the Analytical Hierarchy Process (AHP) was applied to evaluate criteria, and geographic modeling was employed to assess the spatial distribution of tourist destinations. The findings indicate that Zanjan Province, despite its considerable tourism potential, contends with multiple challenges, including inadequate facilities, inconsistent policies aimed at enhancing tourism services, and insufficient management and planning for tourism development. These challenges have impeded the province's progress in the tourism sector. Two primary concerns identified are the overall low level of services and the lack of coherence in planning and perspectives regarding tourism development. Nonetheless, the geographical distribution analysis identifies several high-potential tourist destinations, including Soltanieh Dome, Gen Chimneys, Angoran Mine, Oljaito Ecotourism Resort, Soltanieh Ecotourism Resort, Boutique Hotel, Zulfaqari Mansion, El Daghi, Seyed Mohammad Bridge, Zanjan Jame Mosque, Khedevi House, and the Colorful Mountains. These destinations, classified within the first cluster, are distinguished by their high tourism potential and accessibility, attributed to their unique features and proximity to populated areas. Consequently, they warrant prioritization in service planning and development initiatives. In conclusion, while Zanjan Province possesses substantial tourism potential, it is imperative to address systemic issues such as inadequate facilities, inconsistent policies, and poor management to foster sustainable tourism growth. Prioritizing high-potential destinations can establish a foundation for targeted development, enabling the province to enhance its tourism services, attract a greater number of visitors, and achieve long-term success within the tourism sector.
Sharifeh Zarei, Dr. Bohloul Alijani, Dr. Zahra Hejazizadeh, Dr. Bakhtiar Mohammadi,
Volume 25, Issue 78 (9-2025)
Abstract
This study investigates the most significant synoptic patterns associated with widespread snowfall in the eastern half of Iran. To achieve this, weather code data and snow depth records from synoptic stations in the eastern half of the country were obtained from the Iranian Meteorological Organization for the statistical period of 1371-1400 (1992-2021), focusing on the months of October to March. Days with simultaneous snowfall covering more than 70% of the study area were identified as widespread snowfall events. For the synoptic-dynamic analysis of these events, a classification method utilizing cluster analysis was employed. Maps of representative days were generated, including variables such as atmospheric temperature, moisture flux, geopotential height, vorticity, front formation, jet stream location, omega index, and meridional and zonal wind data. Additionally, trend analysis was conducted using the Mann-Kendall test. The results revealed that three primary synoptic patterns are responsible for widespread snowfall in the study area. These patterns include: (1) high-pressure systems over Siberia and central Europe coupled with low-pressure systems over eastern Iran; (2) high-pressure systems over western Iran paired with low-pressure systems over Sudan; and (3) high-pressure systems over central Europe combined with low-pressure systems over eastern Iran and Afghanistan. In all patterns, the intensification of meridional flows in the westerly winds, along with the formation of high- and low-pressure centers, creates blocking conditions that disrupt the westerly flow and promote upward air motion. The concentration of negative omega fields and positive relative vorticity advection, coupled with the positioning of northeastern Iran in the left exit region of the Subtropical Jet Stream, contributes to significant atmospheric instability and widespread snowfall in the region. Furthermore, the trend analysis indicated that, although there is no statistically significant trend in the number of snowfall days in northeastern Iran, the overall number of snowfall days has decreased over time.
