West of Iran

Open Access Article

1 - Sensitivity Analysis of Evapotranspiration to Change in Meteorological Parameters in North-West and West of Iran
Yagob Dinpashoh Saead Jahanbakhsh asl masoumeh foroughi

Sensitivity analysis of reference crop evapotranspiration (ET0) is crucial for improving water management in the arid and semi-arid country as like Iran. However, it is important to analyze the sensitivity of ET0 to meteorological parameters, since the climate globally More

Sensitivity analysis of reference crop evapotranspiration (ET0) is crucial for improving water management in the arid and semi-arid country as like Iran. However, it is important to analyze the sensitivity of ET0 to meteorological parameters, since the climate globally has been changed to some extent. In this study, sensitivity of ET0 by varying the climatic parameters at 36 selected stations in the West and Northwest of Iran was investigated. The priority and effect of the climatic parameters in different months at the selected stations were found by sensitivity analysis. The ET0 is calculated based on the most recommended form of the FAO-56 Penman-Monteith method. To analysis the sensitivity, variations of ET0 depends on the changes in minimum temperature (Tmin), maximum temperature (Tmax), wind speed (u2), minimum relative humidity (RHmin) and maximum relative humidity (RHmax), in the range of ±20% with the step of 5% was calculated. Finally, the parameter with higher importance for each station was obtained. Results showed that ET0 was more sensitive to the variation of Tmax at the 13 stations (36.11%) in annual time scale. The maximum change of ET0 by increasing of Tmax with+20% was found at Ardebil (15.54%) and the minimum change in the same situation was found to be 6.05 % at Meshkinshahr. The range of the changes by varying T min was between -47 % (in Sanandaj) to 0.91 % (in Khalkhal). Manuscript profile

Open Access Article

2 - Monitoring seasonal tourism at the northwest of Iran using Tourism Climate Index (T.C.I)
Behroz Sobhani Vahid Safarian Zengir

10.22034/jest.2018.13790

Abstract Background and Objective: Recognizing the climatic potentias, as a basis for human activities, provides the predominant foundation for environmental and land use plannning. Most of the tourists follow climate considerations to choose the destination. The aim of More

Abstract Background and Objective: Recognizing the climatic potentias, as a basis for human activities, provides the predominant foundation for environmental and land use plannning. Most of the tourists follow climate considerations to choose the destination. The aim of this study was to evaluate and render the zoning of seasonal tourism at the northwest of Iran using tourism climatic index (T.C.I). Method: In this study, to assess the climatic conditions from the tourism perspective, the climatic data from 22 synoptic stations in the northwest Iran for a period of 20 years (1990-2010) were collected. In this model, a 7-parameter system was used. These parameters included mean maximum temperature, average temperature, average minimum relative humidity, mean relative humidity, total monthly precipitation, sunshine hours and daily average wind speed. The TCI index was used for data analysis and the tourism climate maps were drawn for four seasons using GIS. Findings: The results show that the TCI index has a large variety of topography in the northwest because of conflicts over the years. Summer with the conditions as infinite ideal: 7, ideal condition: 10, excellent quality: 3, acceptable: 1 and very good condition: 1 ranked the first among other three seasons. Autumn with the conditions as perfect: 4, very good: 11, good: 3 and acceptable: 4 ranked the second. Spring season with the spesifications as very good: 2, good: 2, acceptable: 11 and insignifcant: 7 ranked. Winter with the conditions as acceptable: 1, insignificant: 14, poor: 5 and very poor: 2 ranked the fourth place and the most unfavorable condition among the other seasons. Discussion and Conclusion: Northwest of Iran with great tourist attraction can be pioneer in local and foreign tourism. Beautiful scenery and unique and varied climate conditions in all seasons can greatly contribute to the development of this industry and lead to great benefits. Manuscript profile

Open Access Article

3 - Extraction of soil moisture index (TVDI) using a scatter diagram temperature/vegetation and MODIS images
Salah Shahmoradi Hamid Reza Ghafarian Malamiri Mohammad Amini

10.30495/girs.2021.675968

Background and Objective Soil moisture is an important parameter in controlling many processes of the climate system, one of the basic parameters of the environment and its direct impact on the plant, animal and microorganisms, its importance in the global cycle of More

Background and Objective Soil moisture is an important parameter in controlling many processes of the climate system, one of the basic parameters of the environment and its direct impact on the plant, animal and microorganisms, its importance in the global cycle of water, energy and carbon, the energy exchange between air and soil is known for its natural water cycle (especially in the distribution of rain between surface runoff and infiltration) and the management of water and soil resources. Soil moisture plays an important role in the interactive processes between the atmosphere and the earth and global climate change. Triangular and trapezoidal methods combining thermal and visible data are the most commonly used methods for determining the amount of soil surface moisture. The aim of this study is to estimate the surface moisture of the soil (TVDI), by the triangular method in the south of West Azerbaijan province using land temperature index (LST) and vegetation index (NDVI), during 2010, 2014 and 2018. Materials and Methods The present study using MODIS timing series images, NDVI index and LST index, to estimate the surface moisture index (Temperature–Vegetation Dryness Index, TVDI), in three time periods including; the first time period from 1 January 2010 to 30 December 2010 and the second period is from 1 January 2014 to 30 December 2014 and the third period is from 1 January 2018 to 30 December 2018. During each period, 12 images were used on the 15th day of each month. Also, surface moisture was estimated by two methods, one was to establish a high regression relationship and remove the minimum temperature, and the second method was to establish a high and low regression relationship of the pixels. To evaluate the accuracy of these two methods, a regression correlation between the results of these methods with the soil surface moisture content of the Agricultural Jihad (30 points) at a depth of 5 to 15 cm was used. The reason for choosing these three years is due to the difference in high rainfall in some months of the studied years. This study was conducted in the south of the province of West Azerbaijan, which is part of the western region of Iran. Results and Discussion The evaporative triangle diagram consisting of the vegetation index and the surface temperature of the earth in 2010 from January to December month has seen many temperature changes. These same changes in the Earth's surface temperature have caused that the graphs have many changes. During the 2010 year, according to the chart, the maximum temperature was August and the minimum was January, and the maximum vegetation was May and the minimum was December. In 2014, the maximum temperature in August and the minimum in January and the maximum vegetation in May and the minimum in January and also this year were relatively warmer and drier than in 2010. The evaporative triangle chart in 2018 is rainier than the other two years studied, and the amount of vegetation and according to the graphs in this year, the maximum temperature in July and the minimum is January and the maximum vegetation is May and the minimum in January. The surface moisture level of the soil in 2010 for the western region of Iran, which is the maximum moisture level in May and the minimum in August. In most of the 2010 moisture index maps, the maximum humidity in the west and the lowest in the South of this region. The results of the moisture index maps in 2014 this year have been relatively drier than in other years studied. In 2014 has little rainfall and vegetation. Humidity changes this year are lower than in 2010. The maximum and minimum humidity in 2014 was between 0 and 0.6. The maximum humidity is June and the minimum is August. The TVDI moisture index maps for 2018 have had more moisture indicators this year than in the other two years. In 2018, heavy rains caused the vegetation to increase and the ground temperature to decrease, and this has led to an increase in the moisture index compared to 2010 and 2014. In 2018, the vegetation reached 0.89. But in other years it has been studied up to 0.7. This year, the high humidity is in May and the lowest in August. The maximum humidity during this year is in the west and the lower is in the south. The results of the TVDI index for 2010, 2014 and 2018, using the second method, the general results of this method are similar to the first method. Based on the results obtained from the accuracy of both methods, we conclude that the accuracy of the first method is better and generally simpler than the second method. In 2018, in May, according to the first method, the amount of R2 = 0.67, and also according to the second method, the amount of R2 = 0.41. Conclusion Estimation of surface soil moisture is essential for optimal management of water and soil resources. Surface soil moisture is an important variable in the water cycle of nature, which plays an important role in the global balance of water and energy through its impact on hydrological, ecological and meteorological processes. Examination of the two methods used indicates that the first method, which was also used in this research in general, has higher accuracy than the terrestrial fields due to the results of image accuracy.  In 2010, the months of May and August, according to the first method are R2 = 0.61 and 0.57. In 2010, the amount of R2 according to terrestrial data and the use of the second method in May and August are R2 = 0.43 and 0.47. Also, in 2018, the value of R2 using the first method in May is 0.66. In 2018, the value of R2 using the second method in May is 0.41. The results of the soil surface moisture index, in this study, showed that this model is able to estimate the amount of soil moisture in large geographical areas with acceptable accuracy. http://dorl.net/dor/20.1001.1.26767082.1400.12.1.3.4 Manuscript profile

Open Access Article

4 - Spatio-temporal Variations of Snow-covered Days in the Northwest of Iran using Remote Sensing Data
Abbas Kashani Bromand Salahi Amirhossein Halabian Batool Zeinali

In this research, the spatiotemporal variations of snow-covered days (SCDs) in this region were analyzed using the data of the sixth version of MODIS Terra and MODIS Aqua sensors on a daily basis in the period of 2003-2020. In order to reduce the cloud cover effect, thr More

In this research, the spatiotemporal variations of snow-covered days (SCDs) in this region were analyzed using the data of the sixth version of MODIS Terra and MODIS Aqua sensors on a daily basis in the period of 2003-2020. In order to reduce the cloud cover effect, three algorithms were applied to the data. For the digital elevation model, the Digital Surface Model (DSM) of the Japan Space Exploration Agency was used. The relation between two snow-cover phenological components (SCAs and SCDs) and the relation between the SCDs and the altitude were investigated. The findings show an increase in SCDs in the months of November, December, and January. Maximum SCDs are observed in January in Sabalan Mountain and then Sahand. The reduction of SCDs in the spring and summer months is also affected by the two factors of latitude and altitude. The absolute maximum of SCDs in this region is observed at 160 days/ year in the mountain of Sabalan. Examining the changes in SCDs in March and April shows a decrease in SCDs in high-altitude classes. At the same time, it shows the increasing pattern of SCDs in November and December at many altitude levels. Analysis of the relation between SCA and SCDs in different months illustrated that SCAs has decreased in regions with more SCDs (heights) due to the reduction of topographic areas. The relation of SCDs and altitude also showed that the minimum of SCDs occurred in all altitude levels (even altitudes above 3500 m with 4 days) in August and the maximum occurred in December with 22 days at the altitude of 3500 m. SCDs decrease with increasing altitude in mountainous areas of 3500 to 4000 m, due to the increase of land slope and instability of SC in steep areas. Manuscript profile

Open Access Article

5 - Biostratigraphy, microfacies and sedimentary environment of the Jahrum Formation in Chaharmahal Bakhtiari province, West of Iran
Bahman Javadian Seyed Ahmad Babazadeh Ali Solgi Burzu Asghari Pirbaluti

10.30495/ijes.2021.1912770.1549

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Open Access Article

6 - Evaluation on Morphological Characters of European Mole cricket, Gryllotalpa gryllotalpa (Orth.: Gryllotalpidae) in the North-west of Iran
M.H. Kazemi Sh. Jafari H.A. Lotfalizadeh M. Mashhadi-Jafarloo

The European mole cricket is considered to be of the most important insect pests of Iran, especially in Azerbaijan province. Its damage in some area economically is very high. In this study, morphological characteristics, including the length of various parts of the pes More

The European mole cricket is considered to be of the most important insect pests of Iran, especially in Azerbaijan province. Its damage in some area economically is very high. In this study, morphological characteristics, including the length of various parts of the pest body, were evaluated. Analyzing of the size of fore and hind wings results of the adults in this species, showed that there were seasonal dimorphism as long-winged (L.W.) and short-winged (S.W.) among the insects. Based on the literature available seasonal dimorphism in this species is the first report in the world, and probably each morph of this species is various in different both in the biology and behavior. Sexual dimorphism can be distinguished by study pattern of venation in the forewings of sexes. One of the important characteristics in distinguishing mole cricket species is arrangement spines in the fore and hind tibia where their numbers and sizes of these spines in various species are different. The fore tibia of insect has four wide and strong dactyls in its apex, but lateral margin of the hind tibia armed with five sharp spines with seven spines at the end of its tibia.  Manuscript profile

Open Access Article

7 - Evaluating the antibiotic resistance pattern of Salmonella isolated from a number of laying poultry flocks in the northwest of the country during 2021 and investigating its relationship with the performance of the mentioned farms
Zahra Mahdavi Adel Feizi younes anzabi

10.30495/jvcp.2023.1968910.1387

Infection with the Salmonella genus of bacteria causes chronic and acute diseases in poultry leading to significant economic losses to the poultry industry. The aim of the present study was to evaluate the antibiotic resistance pattern of Salmonella serotypes isolated f More

Infection with the Salmonella genus of bacteria causes chronic and acute diseases in poultry leading to significant economic losses to the poultry industry. The aim of the present study was to evaluate the antibiotic resistance pattern of Salmonella serotypes isolated from a number of laying poultry flocks in the northwest of the country and to investigate its relationship with the performance of those farms. Eighty samples were taken from 20 flocks suspected of salmonellosis .The samples were cultured in selective and differential cultures of Salmonella. After isolation of Salmonella serotypes, the antibiogram test was performed to determine the antibiotic sensitivity. In order to check the performance of suspicious flocks, the history of the flock was obtained and the amount of mortality and production drop was calculated by statistical methods.The results indicated that 40% of the flocks were positive in terms of the presence of Salmonella, with 30% of the flocks affected by Salmonella gallinarum, 5% by Salmonella enteritidis, and 5% by concurrent presence of both Salmonella enteritidis and Salmonella gallinarum. The highest antibiotic sensitivity of Salmonella serotypes was recorded from fosfomycin and danofloxacin with a frequency of 100% and soltrim with a frequency of 78.6%. The highest antibiotic resistance was observed against erythromycin with a frequency of 75% and chlortetracycline with a frequency of 53.6%. Based on the results, there was a statistically significant difference in  the amount of flock mortality and production drop between Salmonella negative and Salmonella positive herds (p<0.05). Also, more vigilant use of antibiotics is required due to the high levels of resistance shown by Salmonella against various antibiotic drugs. Manuscript profile

Open Access Article

8 - Synoptic Survey of the Largest and Most Continuous Glaciers in Northwest Iran
Batool Zeynali Mahdi Frotan Sahar Okhovat

Frost is one of the natural events whose early and late occurrence can affect different aspects of human life. Therefore, this research has been carried out with the aim of predicting the atmospheric factors of this phenomenon with an environmental approach. For this pu More

Frost is one of the natural events whose early and late occurrence can affect different aspects of human life. Therefore, this research has been carried out with the aim of predicting the atmospheric factors of this phenomenon with an environmental approach. For this purpose, the environmental data related to the daily minimum temperature of 2001-2017 for 9 synoptic stations located in Ardabil, Urmia and Tabriz provinces were obtained from the Meteorological Organization of the whole country and the days with temperature below 0 degrees Celsius that cover 40% of the studied area in were selected and using the ward hierarchical clustering method that was applied on the average sea level pressure maps related to ice days, the classification of the free days was done. In order to determine the representative of each class using scripting in the MATLAB environment, Lund's correlation was calculated between the maps of different days of each class of 2 to 5 groups with a coefficient of 0.5; And the days that had a correlation coefficient of 0.5 and the most similarity with the majority of days of that class were introduced as the representative of the group. After determining the representative day, atmospheric data was prepared from the Nova site and maps of sea level pressure, geopotential height, wind vector, temperature of 500 hPa and atmospheric thickness were drawn in Gurdes software. The results of the 4 patterns for ice days showed that the most effective systems on the northwest of Iran were high pressure systems in Siberia, low pressure systems near the Arctic and high pressure systems in Northern Europe, and the studied areas were located in the front of Faraz and the negative circulation of air brought stable conditions. In most of these patterns, the western winds that have moved in the polar ice channel have brought cold air from the northern latitudes into the atmosphere of the study areas and caused low air temperatures. Manuscript profile

Open Access Article

9 - The Role of Topography in Intensification of Precipitations in the south and South-west of Iran((Case Study:3 December 2015))
zynab mohammadi hasan lashkari

In this study, 10 precipitation systems were selected as prototypes between October and June 2016-2015. Then, 70 stations from the country's satellite stations were divided into four general groups in the south, southwest and center of Iran. The daily precipitation of t More

In this study, 10 precipitation systems were selected as prototypes between October and June 2016-2015. Then, 70 stations from the country's satellite stations were divided into four general groups in the south, southwest and center of Iran. The daily precipitation of the stations was extracted from each platform. To determine the patterns of precipitation occurrence in the Sudan low pressure region, atmospheric data from 1000 to 500 HPa are extracted from the NCEP / NCAR site and in the GRADS the maps of these ten systems were mapped. One of the most important systems that provide rainfalls in the Middle East is Sudan low pressure Lashkari (1996). The results showed that the systems entering Iran and the Middle East from the mentioned Sudan low pressure have a special mechanism. These systems have strong convection mechanisms because of having a thermal nature in their source and receiving a huge amount of moisture from the surrounding warm seas. They form deep boiling clouds and cause intensive and torrential showers when accompanied by deep waves in layers 700 and 850 HPa. Therefore, the cloud always forms in a convective way, and the height does not play a significant role in the intensification of its precipitations. In other words, it does not have a significant role by itself, at least in the windward slopes of the Zagros Mountains. The intensity of precipitation is, therefore, sometimes higher in the plains compared to the mountain summits. It seems heights play a more effective role in elevations above 1,500 meters in both windward and leeward slopes. However, in the Alborz mountain chain, there is a very clear and impressive correlation between precipitation and height because of re-creation of systems Manuscript profile

Open Access Article

10 - Zoning SPI and DI Drought Indices Using Rainfall Network Data in Northwest of Iran
Khadijeh Javan Mohammad Reza Azizzade Hoshang Bashiri Fariba Shahriar

Drought is one of the natural hazards that humans are constantly exposed. Therefore, it is necessary to recognize and analyzed. Drought indices, in fact Indicate the normal limits of droughts occurred during Time period to do possible to evaluate different spatial and t More

Drought is one of the natural hazards that humans are constantly exposed. Therefore, it is necessary to recognize and analyzed. Drought indices, in fact Indicate the normal limits of droughts occurred during Time period to do possible to evaluate different spatial and temporal scales. Daily precipitation data in a 57-year period (1951-2007) were received. Data in this database is in form of cell 0/25× 0/25 degree arc to the Middle East. To convert the database to a text file (TXT) format, it converted to useable formation MatLab software by programming in Grads software. The next step is the calculation of the indices described in MatLab software. To map the output data, the Surfer and ArcGIS software were used. In this study the data output is seasonal and annual, ultimately standard rainfall index shows the drought rate and has been compared with DI index. Comparison annual maps of deciles Index and the Standardized Precipitation Index shows that the eastern part in Northwest of Iran is Wetter than the western part according to a period of 58 years and The western and central regions of Azerbaijan have drought Manuscript profile

Open Access Article

11 - modernizing the traditional irrigation system in western Iran: Pahlavi's era
Shayan Karami

rehabilitation program changed the old system of traditional irrigation. Theconsequences of modernizing the traditional irrigation system in western Iran are themain issue of the present paper. By studying this issue, the analysis of the reasons for themodernization and More

rehabilitation program changed the old system of traditional irrigation. Theconsequences of modernizing the traditional irrigation system in western Iran are themain issue of the present paper. By studying this issue, the analysis of the reasons for themodernization and the explanation of the strategic conditions of the irrigation systemmodernization program, are as the objectives of this research. The present study has aqualitative approach. Data was collected from the archives of documents and otherlibrary resources, based on targeted sampling. To analyze the data, the grounded theorymethod is used. The findings show that, under the conditions of insufficient averageannual rainfall, it was imperative to use artificial irrigation techniques in agriculture. Thedevelopment of commercial agriculture, and the expansion of planting of crops, led tomore attention to artificial irrigation systems. The use of pressurized irrigation systems,along with other traditional irrigation techniques, is one of the most important strategicplans in modernizing the irrigation system. Modern damming, deep and semi-deepexcavation, irrigation network development and rehabilitation, and the integration oftraditional irrigation systems in regional irrigation administrations, including theactivities of an independent irrigation firm in western Iran. Increasing the level ofcultivation of cash products, such as opium, beet and cotton, was based on the importantimplications of modernizing the traditional irrigation system in western Iran, utilizingmodern irrigation knowledge, increasing irrigation efficiency, reducing tension andimproving social relations. Manuscript profile

Open Access Article

12 - Identification of Tourism Climate Regions in West of Iran
Mehrdad Ramzanipour

Climate information is important for tourists especially before and during the vacation period. In this regard, for evaluation the local and time conditions for tourism climate regions in west of Iran (Lorestan, Kermanshah, Hamedan and Kurdistan provinces) TCI index and More

Climate information is important for tourists especially before and during the vacation period. In this regard, for evaluation the local and time conditions for tourism climate regions in west of Iran (Lorestan, Kermanshah, Hamedan and Kurdistan provinces) TCI index and climate variables including mean of temperature, mean of max temperature, total of monthly precipitation, mean of relative humidity min, mean of sunshine hours and mean of wind speed (km/h) were used during a 15 year period (1990-2005). After analysis, the results showed that in most stations, May, June, July, September, October, and November month have ideal to good conditions for tourism. Throughout a year, Sarpol-e Zahab station has less favorable tourism conditions than other stations. The TCI coefficients zoning showed that in the cold seasons, i.e., in the entire studied area in December and January months, Lorestan province has not favorable climate for tourism, except a small southern part of this province, which has a good tourism climate in February and March months. In the warm seasons, i.e., in May, the central part of Lorestan province and small sections in the east and south of Kermanshah province and in June, the northern parts of Kurdistan province and south-east of the Lorestan province the ideal conditions dominate, and in September, the northern parts of Kurdistan and Hamedan provinces have the most ideal area compared to other areas, and in October, there is an ideal conditions for tourism only in the central part of Lorestan province. Manuscript profile

Open Access Article

13 - Drought Monitoring Using MODIS Land Surface Temperature and Normalized Difference Vegetation Index Products in Semi-Arid Areas of Iran
Elham Rafiei Sardooi Ali Azareh Hadi Eskandari Damaneh Hamed Skandari Damaneh

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Open Access Article

14 - Investigation of Cosenza Mutation in Patients with Deficiency of Glucose-6-Phosphate Dehydrogenase (G6PD) in North West of Iran
Omolbanin Javadi omoalbanin Javadi Habib Onsori habib onsori

10.22034/jchr.2015.544094

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