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Laaya Jalilian, , Mohsen Ahadnejad, Hiwa865@gmail.com,
Volume 0, Issue 0 (3-1921)
Abstract








Abstract
Policy-making in tourism development planning requires the use of new methods in the field of urban governance. In accordance with this approach, it is necessary to apply policy focusing on the processes of "developing a good governance model for tourism in the post-corona era in Iran" in order to solve the problems caused by this disease, which puts double pressure on the body of the tourism industry, through To reduce the evaluation of tourism governance indicators and provide the basis for their implementation. The method of this research is descriptive-survey and with practical purpose, using documentary studies and field research. We have used the interview tool for the qualitative part (data analysis of the foundation) and studying the appropriate indicators of tourism. The statistical population includes elites and people involved in tourism in the country, and the statistical sample includes 14 of these people, who were selected by a combination of judgmental and snowball sampling methods. In-depth semi-structured interviews were conducted by comparing data in open, central and selective coding until the stage of theoretical saturation and separation of main and sub-categories, and the data theory method of the Strauss and Corbin Foundation (1998) was used to analyze the obtained data. has been The results of this research, according to the identification of the indicators of meritocracy and the introduction of the causal conditions of the use of meritocracy in Iran's tourism industry, lay the groundwork for the formation of consequences such as; Improving the business environment, especially after the recession crisis of this industry due to the spread of Covid-19, creating a competitive advantage, etc. through providing suitable platforms, including: organizational measures, strengthening and improving infrastructure, technological capabilities, etc. and using information and communication management strategies, marketing strategies, supervision and monitoring, etc., which are displayed as a model.
 
Majid Goodarzi, Ali Ashkboos, Behnam Mohammadi,
Volume 0, Issue 0 (3-1921)
Abstract

The intermediate development approach suggests that empty lands and the inner destructive structure of cities should be targeted for development instead of taking the peripheral lands of the cities under construction. Considering this importance, in this article, an attempt has been made to identify and prioritize the obstacles to the intermediate development of Zabol using Chang’s technique. The present applied study employed a descriptive-analytical research method and library and survey research (field studies) data collection techniques. The statistical population for identifying the obstacles of intermediate development consisted of all the residents of Zabol city in 2023. The sample size was calculated as 384 via Cochran’s formula. The purposive sampling method was employed to collect the data. Cronbach’s alpha coefficient calculated the research instrument’s reliability as 0.80. The obstacles were identified using a sample t-test in SPSS, and the upcoming obstacles were prioritized. The required data were collected from the existing facts of the city and through a questionnaire distributed among 20 related experts. Then, data and information were analyzed using Chang’s technique (AHP-FUZZY). The research results showed that the most important obstacle to implementing the intermediate development plan of Zabol city is the economic index, with a final weight of 483.
 
Monireh Rodsarabi, Mohammad Baaghideh, Dr Alireza Entezari, Fatemeh Mayvaneh,
Volume 0, Issue 0 (3-1921)
Abstract

In order to evaluate the thermal comfort conditions in the classroom, a field study was conducted in Sabzevar. Students' thermal sensations of class conditions were recorded at different hours of the day during the 2009-2010 academic year for different classes. At the same time, the temperature and humidity values of the classes were collected by a Data logger. To examine the differences, ANOVA, and Kruskal-Wallis methods were used. The results showed that the location of the classrooms in terms of geographical direction and building floor did not make a significant difference in the temperature and humidity, while the hourly differences of these parameters were significant.
In general, the responses related to the sensation of cooling had higher percentages than the state of heating (24% vs. 12%).
The thermal sensation in different months showed significant differences and the month of October had the lowest frequency in the feeling related to thermal comfort. In all months, except for October, the students' preferred was "heating". Although the performance of the heating system has been assessed as adequate, the operation time of this system should be done at a shorter distance from the start of morning classes to avoid wasting a significant portion of energy.
Although the temperature and humidity inside the classrooms did not show a significant monthly difference, but in terms of students' thermal sensation between different months, there was a statistically significant difference, therefore, the thermal sensation is something beyond physical characteristics (temperature and humidity) and In addition to being affected by climatic parameters, it is also strongly influenced by individual characteristics (sex, age, weight, height, clothing and activity level).

 
Mis Zahra Asgari Gandomani, Mr Hamid Roodbari, Mr Yaghoob Mohammadi,
Volume 0, Issue 0 (3-1921)
Abstract

Many sports consumers are concerned about environmental issues and have expressed interest in buying green products. However, the actual sale of green products is still not as expected. For this reason, the purpose of this study is to investigate the effect of environmental factors (attitude, concern and sense of environmental responsibility) on the purchase intention of environmentally friendly sports consumers. The present survey study collected information from 384 Iranian students using a seven-point Likert electronic questionnaire with 27 questions. The samples were selected using simple random sampling method. A total of 390 questionnaires were returned, of which 384 were approved. To analyze the data, PLS software was used for the reliability and validity of the model and to test the hypotheses of the structural model. The results showed that environmental attitude is an important driver of consumers' green purchasing behavior. Also, a statistically significant relationship between environmental responsibility and green purchasing behavior was obtained. But there was no statistically significant relationship between environmental concerns and green purchasing behavior. In addition, the relationship between individual green values with environmental attitude, environmental concerns, environmental responsibility and green purchasing behavior was statistically insignificant. For this purpose, companies can create a suitable image of environmental responsibility for their products in the minds of customers through appropriate strategies in the branding of their products, which makes them benefit from the support of customers who want to buy environmentally friendly products.
Nahid Keshavarz, Hamidreza Joodki, Ali Nourikermani,
Volume 0, Issue 0 (3-1921)
Abstract

The historical area of the cities is a valuable architectural and physical heritage and a manifestation of the cultural, economic and social aspects of the people who lived in this part of the city in historical periods and recorded its cultural identity. These areas have witnessed the decline in urban development and the few actions regarding their improvement or reconstruction have not been acceptable. advance The purpose of this research is an analysis of urban regeneration in the historical (old) context of Dezful city. The research method in this study is descriptive-analytical and survey. The statistical population of the current research is all the residents of the historical context of Dezful city, which according to the latest census of Iran Statistics Center, has a population of 29,277 people. In order to reach a reasonable sample size, 384 samples were determined using Cochran's formula and randomly selected in a stratified manner. The main tool of data collection in the current research; It is a questionnaire, but due to the specialization of the questionnaire, interview and observation methods have also been used in order to complete the questionnaires. The results of SWOT and QSPM models show that the first two of the five final strategies for re-creating the historical context of Dezful belong to offensive strategies. In this way, the study and design of the possibility of creating footpaths in the historical context according to the increasing desire of the people for cultural and historical tourism and the use of the border area of the Dez river for the development of green space and the design of the green corridor along the river and the historical context can be considered as important. proposed the most aggressive strategies.


Sharifeh Zarei, Dr. Bohloul Alijani, Dr. Zahra Hejazizadeh, Dr. Bakhtiar Mohammadi,
Volume 0, Issue 0 (3-1921)
Abstract

In this research, the most important synoptic patterns of widespread snowfall in the eastern half of Iran have been investigated. For this purpose, the current weather code data and snow depth of synoptic stations in the eastern half of the country during the statistical period of 1371-1400, for the months of October to March, were received from the country's meteorological organization. In order to investigate widespread snowfall, the days when more than 70% of the studied area saw snowfall at the same time were extracted as a widespread day. In order to perform synoptic-dynamic analysis of widespread snowfall in the eastern half of Iran, the classification method using cluster analysis was used and the maps of the representative days including atmospheric temperature, moisture flux, geopotential height, vorticity, front formation, jet stream, omega index and orbital and meridian wind data were drawn. Trend analysis was also performed using the Mann-Kendall test. The results showed that 3 patterns justify the snow cover in the studied area. These patterns are: high pressure in Siberia and central Europe-low pressure in eastern Iran, high pressure in western Iran-low pressure in Sudan, high pressure in central Europe-low pressure in eastern Iran and Afghanistan. In all the patterns in the middle of the atmosphere, the intensification of the meridian currents of the western winds along with the formation of high pressure and low-pressure centers has caused blocking in the path of the western currents and has provided the conditions for the ascent of the air. The concentration of the negative omega field and the relative positive advection, along with the location of the northeastern region of Iran in the left half of the outlet of the Subtropical Jet, have caused severe instabilities and widespread snowfall in the region. Also, the results showed that despite the absence of a trend in the number of snow days in the northeast of Iran, the number of snow days has decreased over time.
 

Hassan Heidari, Ebrahim Mesgari,
Volume 0, Issue 0 (3-1921)
Abstract

Understanding the daily weather types of any place location plays an important role in identifying its long-term climate. In this study, we employed the Wos classification method, along with a comprehensive climatology approach, to examine key variables such as minimum, average, and maximum temperatures, as well as cloud cover and daily precipitation. Data spanning from 1985 to 2021 were collected from 39 synoptic stations that had a good distribution in the country and had complete statistics, and weather types were identified using coding techniques. The findings revealed that the predominant temperature types in the country are predominantly hot and very hot, with sub-codes indicating generally low to moderate cloud cover and no precipitation. Moreover, the utilization of Ward's clustering method enabled us to identify three distinct climatic groups. The geographical characteristics of each place, such as location, altitude, latitude, proximity to the sea, and synoptic characteristics based on their influence, have the most important effect on the regional separation of groups in the country. The results of this research can be used to determine the weather calendar of each region during different time periods in many fields of agriculture, tourism, etc.

Dr Saeedeh Fakhari,
Volume 0, Issue 0 (3-1921)
Abstract

Investigating the awareness of the local community towards the development of ecotourism is very important and necessary for future planning. Ecotourism in any region affects the lifestyle of local people and their economic-cultural conditions. On the other hand, ecotourists are also influenced by the culture of the host society and its values. Therefore, this study examines the local community's awareness of supporting ecotourism development in Damavand City. Due to the preservation of unique biological diversity, climatic conditions, and the frequent visits of tourists and ecotourists to this region, the local community needs to know about ecotourism, which made this research necessary. The target community of this study is the local community of residents of Damavand city. Therefore, using Cochran's formula, the sample size was estimated to be 384 people. The data was collected through a researcher-made questionnaire, which was used to determine its validity, in addition to seeking opinions from experts (face validity), convergent validity was used. To calculate its reliability, Cronbach's alpha method and composite reliability were used. The results of the inferential statistics that were conducted using confirmatory factor analysis (Smart PLS software) showed that the four components of the research (local community awareness, economic poverty, cultural poverty, and ecotourism development) have homogeneity and reliability, and the awareness of the local community It has a significant relationship on the development of ecotourism with the mediating role of cultural poverty with the test statistic value of 4.195 and economic poverty with the test statistic value of 5.397. The results showed that the awareness of the local community on the development of ecotourism with the test statistic value of 2.032 indicates the low level of awareness of the local community towards the development of ecotourism
Masoud Malekian Dolat Abadi, Gholamhosein Heidari, Farhad Hamzeh,
Volume 0, Issue 0 (3-1921)
Abstract

ABSTRACT
The world today is witnessing the height of geopolitical competition; An arena where only energy resources are no longer considered as the support of countries, but the corridors have become the place of power competition and every country tries to find a place for itself in the network created by these emerging corridors. In other words, the global geopolitical trend intensifies competition over maritime bottlenecks and secures access to cross-border markets. This research is a type of "theoretical foundation" research; Its method is also descriptive-analytical and it is collected in a certain way from comparative methodology with library and internet tools. It seems that in the chronopolitical alcove in the field of Iran-Iraq relations, each of the actors is trying to position their role in the international corridors, which they pursue in line with several goals; Such as Iraq's pursuit of the "FAW Corridor" initiative, and Iran, which seeks to develop the circle of economic cooperation and take a place in the emerging alliances of the East. Although it is not possible to confidently predict the future of relations between the two countries from a chronopolitical perspective, signs of less cooperation and more competition in the relations between the two countries due to various variables and reasons can be seen on the horizon. The most important indicator of possible competition includes competition in transit routes (corridors).

Faeze Shoja, Salimeh Sadeghi, Shamsipour,
Volume 0, Issue 0 (3-1921)
Abstract

The aim of this research is to evaluate the heat mitigation index (HMI) in the Tehran metropolitan area using the Urban Cooling Model(UCM)approach in a spatial framework. UCM produces maps of the Heat Mitigation Index. This index estimates the cooling potential of urban green spaces in a given location, taking into account various parameters such as evapotranspiration, tree shading, albedo, rural reference air temperature, urban heat island intensity, air temperature maximum blending, and maximum cooling distance. The assessment of environmental factors influencing the UCM in the study area revealed that the urban heat island effect was least intense in regions 1, 22, and the northern parts of region 4 of Tehran municipality, where there are scattered trees, shrubs, open low-rise buildings, and water bodies. The temperature differential between the city and the suburbs ranged from 0 to 1.3 degrees Celsius. However, the study area's central parts showed the highest intensity of the urban heat island, particularly in regions 21, 13, and 14. These regions have a dense and compact texture and an expansion of impervious surfaces, resulting in the lowest values of the evapotranspiration index and albedo.Based on these parameters, the study area's HMI index showed that the cooling capacity varies from 0.08 in the central parts of the city to 0.9 in areas affected by green spaces and water bodies. The maximum cooling capacity index is concentrated in areas with dense and scattered tree cover in the region. On average, these areas have been able to neutralise 2.48 degrees Celsius of the urban heat island effect with a cooling capacity of 63%. The methodology employed in this research can be used as a reference for urban designers in integrating urban cooling approaches and heat island mitigation strategies in urban planning and design.
 
, Vahid Riahi,
Volume 14, Issue 35 (3-2015)
Abstract

Iran's rural settlements, in spite of their comprehensive and multi-faceted developments in the last decades, are still considered to be among the settlements faced with crucial challenges in the face of environmental hazards. As a result, prearrangement for upcoming events and disasters, as well as paying attention to the management of rural disaster in dealing with particularly natural events turn out to be necessary. The rural areas of Sarwabad, in Kurdistan, are also considered among the areas susceptible to natural disasters, such as floods, earthquakes, and landslides. The purpose of the research is the identification of settlements, and safe and hazardous landslide zones with particular focus on disaster management in Sarwabad. This research is methodologically analytical and essentially functional, and, by using geographical information system (GIS) and the analytical hierarchical process (AHP), the researchers analyzed the data and the layers and provided the ultimate version of combined hazard maps and also overlaying maps for the purpose of factorial assessment. The findings have been in the form of spatio-populatory analysis of the settlements, and resulted in identifying the safe and unsafe villages and zones. Moreover, it is found that nearly 46 percent of the rural population and 31 villages of the area are located in safe or low-hazard-level landslides, while the rest of the settlements and rural population are located in the mid and high-hazard-level zones and, as such, are need to be secured in these zones.
Alireza Darban Astaneh,
Volume 15, Issue 36 (6-2015)
Abstract

Today in democratic governments, accountability to people and obtain the consent of them form local services is important for people's participation in local governance and consequently it is important to organizational success. In rural areas, wide range of services offered by local public organizations. Rural Satisfaction with the quality of their services, is one of the public performance indicators. The purpose of this study was to measure and analyze the rural people satisfaction from services quality of local organizations in Ilam province. Research Statistical Unit, is all villages with over 20 households in Ilam province. Research Statistical population is all members of the village councils and the study was done by counting all. The overall 1130 questionnaires were collected from 398 villages. The data were collected using a closed questionnaire.The model of Service Quality Gaps was used to assessment of villager’s satisfaction and One sample Chi-square used to analysis and assessment of comments. Also Cluster analysis was used to compare and cluster the villagers' satisfaction and one way ANOVA tests and Duncan's post hoc test was used to compare the satisfaction of villagers in different counties. The results showed that the villagers have little satisfaction in all of the local organizations. Cluster analysis results show that villagers are the most satisfaction from primary education, rural health centers and telephone services.  Also ANOVA results show that villagers in Dehloran County are less and Ilam County most satisfied with the public services. Correlation analysis revealed that a positive correlation exists between index of rural enjoyment and the public consensus. Also there is a negative correlation between distance of accessibility index and the public consensus.
Hakimeh Behboudi, Mohammad Saligheh, Ali Bayat, Akram Zakeri, Fatemeh Jamali,
Volume 15, Issue 36 (6-2015)
Abstract

Understanding weather zoning and knowing homogeneous climate regions are essential for land use and regional planning. The aim of this study was to compare three different geographical climate of Iran, the Caspian coastal, mountainous and arid interior of the provinces of Mazandaran, Semnan, Tehran, Qazvin, Qom, and Markazi. In order to do this study, climatic data of 56 synoptic and climatology stations and 19 climatic elements were used by using cluster analysis and factor analysis models. For this purpose, a matrix with dimensions of 56 x 19 and the R configuration and as a database was used for segmentation. By applying factor analysis based on principal components analysis with Varimax orthogonal rotation it was determined that in the climate of these three regions, four factors of humidity, temperature, dust and thunderstorms are affecting more than 85% of the total variance of the climate of this region. The hierarchical cluster analysis method and integration into the matrix of factor scores, four main and several sub-region areas were identified.The main areas are hot, dry desert area, ​​low rainfall mountain slopes, the mountainous and cold and semi-rainy regions and high rainfall and finally the moderate high rainfall. The study of four areas and their local and regional conditions shows that the neighborhood with humidity source such as the Caspian Sea and rough configurations such Alborz Mountains play a decisive role in the formation of north sub-areas.
Hamid Jalalian, Fariosh Namdari, Asghar Pashazadeh,
Volume 15, Issue 36 (6-2015)
Abstract

Nowadays most of the countries have chosen the tourism as a development strategy for the rural areas. The Hajij village with worthy natural, cultural and anthropological heritage has known as a tourism destination in Kermanshah province and west of Iran. In this research, the effects of tourism are studied in this village. The methodology is descriptive-analytic method. The necessary data were collected through both library and field methods. The population of this study equals to 180 persons- based on Cochran Table- including the 130 residents, 15 local governors and 35 visitors were selected by simple random method. Research tools include a researcher made questionnaire which its validity was confirmed based on the collective opinion of the universities professor's and experts of executive organizations. The reliability of the questionnaire was calculated at 0.867 using Cranach’s alpha test based on 20 pretesting. Data analysis was held by factor analysis in SPSS 21 software. The research findings showed that there are six main factors among 30 variables which interpret 70 percent of the variance of the tourism effects the most important is physical- facilitator effects. Moreover, the positive effects were %65.8 and the negative ones were %34.2 based on factor analysis.
Hossein Nzmfar, Ameneh Alibakhshi, Soheyla Bakhtar,
Volume 15, Issue 36 (6-2015)
Abstract

With the aim of development and reducing regional inequalities, regional planning is one of the most important subiects in developing countries. Regional planning requires the identification of the position of areas relative to each other in terms of their development. The aim of this study is to investigate and assess the level of Kermanshah province in terms of development indicators in order to find out the level of regional inequalities. The population of Kermanshah province is considered as statistical population. According to the investigated parameters of the research approach, it is “Descriptive - quantitative and analytical". This research is trying to use the 61 indicators based on 1390 almanac statistics and utilizes three statistical techniques of Vikor, Electre, SAW and integration of  results with Copeland  technique, classify existing inequalities in Kermanshah province. The results show that the Levels of development has been unbalanced and there is large gap and inequality among different cities of province in terms of development. The difference and inequality exist in various sectors of infrastructure such as economic, health, education, culture, social welfare and social. Only one city Gilangharb is developed and the rest of cities are semi- developed and deprived. To reduce inequalities in development in the province it is suggested that distribution of health, education and infrastructure indicators should be directed towards balanced growth and the index of infrastructure be emphasized more than the other indicators.                                            
 
Mehrshad Tolabinejad, Hossein Farahani,
Volume 15, Issue 36 (6-2015)
Abstract

Transportation networks‚ particularly roads as a linking elements between settlements has a significant role in the exchange of flows between urban and rural areas and also rural development .The aim of this paper is to study the effect of highways construction and expanding transportation on rural stable development in the rural district of eastern Miankouh which by using survey method (questionnaire) have been turned to the studying of highways construction on development quality of adjacent villages in this rural district. In this study ‚mean time of defining the population community (514 family)‚ the 103 family was selected as a sample with Cochran formula (12 villages).The result of achieved data analysis‚ on the basis of‚ fitting regression test‚ linear regression and path analysis showed that the most general effect of highway construction is relevant to the environmental dimension with amount of (0/591) so that the contamination of soil and water resources have been increased in rural areas. Also using of fertilizers and pesticides is been prevalent. The amount of demolition of water resources such as springs and water channeling have been increased in the rural boundary. and also pastures‚ forests and fertile lands have been allocated to the building constructions and forming dimension with amount of (0/058) has the least overall effect on the rural stable development in the boundary of studying area.
Alireza Yousefi, Mahdiyeh Shahabinejad, Amimozafar Mini,
Volume 15, Issue 37 (9-2015)
Abstract

Agricultural sector has an important role in development of countries. One of the obstacles to development in this sector, especially in Iran is significant fragmentation of agricultural lands. The aim of this study is to assess the farmers’ willingness to participate in land consolidation project using structural equation modeling. The population of this study consists of all farmers of Meymeh County and its surrounding cities and villages and Niloofar-Abi cooperative of Vazvan city. Data were collected on a sample of 156 farmers through face-to-face interviews based on a comprehensive structured questionnaire. Before the survey, the reliability and validity of questionnaire was initially evaluated on a pre-test study respectively by using Cronbach’s alpha coefficient, expert’s judgment and Kaiser-Meyer-Olkin (KMO) criteria. The results of this study show that the most important factors on farmers' willingness to participation are crop acreage and number of plots which respectively has the greatest positive and negative effect. The awareness of the farmers about benefit of consolidation project is another factor which has significant and positive impact on farmers' willingness. Furthermore, level of farmers schooling has no significant effect.
Mohammad Darand,
Volume 15, Issue 37 (9-2015)
Abstract

The aim of this study is synoptic analysis of heavy precipitations in Kurdistan Province during 1/1/1961 to 31/12/2010(18263days). By using two thresholds of extensively and intensity of precipitation, 107 days have been recognized. In temporal view, the selected days occurrences in wet seasons of year that start from October to June. By applying the principle component analysis on the sea level pressure during the 107 days, the results showed that 12 components explain about 93 percent of sea level pressure variation. The results of the applying cluster analysis on the component score showed that two circulation patterns result in occurrence of extreme and heavy precipitations in Kurdistan province. In order to recognize heavy precipitation in dry season (June to October), the area mean precipitation for the province have been calculated. According to the 99 percentile threshold and extensively of precipitation the heavy phenomena recognized. By two thresholds 32 days selected and same as to the wet season precipitation the sea level pressure data from NOAA extracted. The data analyzed by Principle Component Analysis and 11 components extracted that explain the 93 percent of variation sea level pressure in the frame study. By doing cluster analysis on the 11 components, one pattern recognized for the sea level pressure.  The results showed that in lower atmospheric levels (1000, 925 and 850 hpa) occurred highest convergence on the study region during wet season. The source of humidity in the lower levels is Arabian, Red, Oman, Persian Gulf and Mediterranean Seas. In the high level atmosphere, the value of convergence is low. The sources of humidity in high levels atmosphere are Red and Mediterranean Seas. In the mid level atmosphere (500 hpa) the presence of trough results in nutrition of the instability on the study region. Also during dry season, the highest moisture flux convergence occurred in the low levels but the resource of the moisture is Caspian Sea. In the upper levels (from 700 hpa to up) in addation to Caspian Sea, Mediterranean and Red sea are the resource of heavy precipitations.
Majid Vazifedoust, Nima Fayaz, Shahab Araghinejad,
Volume 15, Issue 37 (9-2015)
Abstract

Variation of snow cover area (SCA) in small to large scale catchment can be studied using MODIS snow products on daily to montly time step since the year 2000. However, one of the major problems in applying the MODIS snow products is cloud obscuration which limits the utilization of these products. In the current study, variation of SCA was investigated in Karoun basin, western part of Iran, using MODIS 8-day snow cover product (MOD10A2). More over in order to overcome the cloud barrier in application of snow cover products, a simultaneous employment of the images from both MODIS optical sensor and AMSR-E microwave sensor was recommended. Meeting our target, the combination of MODIS and AMSR-E daily images was exercised to accomplish snow cover area in daily interval and afterwards, a comparison was made between the result and those which had been obtained by the sole utilization of either of them while the weather had been either cloudy and not been overcast. Validation of snow cover gained by combined images was additionally compared with the discharge of one of the catchments existing in Karoun basin. The results demonstrate that regardless of the fact that microwave data, featuring a coarse spatial resolution, can penetrate the cloud cover, on average, AMSR-E images approximately show 16% more snow cover in comparison to MODIS images. The results also illustrate that the correlation existing between snow cover rate of AMSR-E and MODIS images during cloudless days, the difference of average snow cover area decreases from 16% to 5%. Moreover, the upshot of validation by the exercise of daily discharge data indicates that by possessing a correlation coefficient of 0.66, the correlation of snow cover and discharge in combined images features a higher accuracy in comparison to MODIS images with a correlation coefficient of 0.55.
Hadi Nayyeri,
Volume 15, Issue 37 (9-2015)
Abstract

The subject of the study is to analysis pattern of Mahabad River channel. This area is located on the south of Uromia Lake. Rapid changing of its channels pattern is an important characteristics which the evaluation of these characteristics is necessary to any hmplementation of development projects. For this purpose, the morphological changes of river channel were recognized by the areal photographices and satellite imageduring different times periods. The relationship between effective variables on the channel pattern such as, discharge, slope, stream power,stream bank clay content and width of bed, and observed pattern changes were analyses. The results showed that formation of braising channels could be the result of accumulation of bank coarse materials and increasing of width to depth ratio. The pattern of the river changed to sinuosity at the downside of braiding channel.the increased discharge and more river bank resistance due to high clay content caused to river pattern changed from breading to sinocity.In the distance between Mahabad dam at the upstream and diversion dam at the downstream, the river pattern was changed to Anabaranching. Assessment and comparison of Arial photographs before and after of Mahabad dam construction revealed that these types of channels were developed recently. Reduction of peak flows and sediment deposition in the channel as the result of dam construction, prepared the essenssial conditions to form Anabrancing

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