List of Articles dust

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  1 - Temporal- Locational Investigation of Dust Hazard (Case Study: Yasouj and Dogonbadan Stations)
  Ali  Modabberpour Amir Gandomkar Morteza  Khodagholi
  Dust is one of the common phenomena in arid and semi-arid regions and can have significant effects on the climatic conditions of an area. Therefore, the present study was conducted to investigate the dusts in Kohkiluyeh and Boyer Ahmad provinces. In this regard, codes 6 More

  Dust is one of the common phenomena in arid and semi-arid regions and can have significant effects on the climatic conditions of an area. Therefore, the present study was conducted to investigate the dusts in Kohkiluyeh and Boyer Ahmad provinces. In this regard, codes 6, 7, 8, 9, 31, 32 and 35 of dusts were investigated at Yasouj, Dugonbadan, Thay, Dehdasht, Likak and Imamzadeh Jafar stations on daily, monthly and annual basis. At first, the frequency of daily, monthly and yearly codes was checked at all stations and their daily calendar was prepared. Then the zoning maps from all of the codes were mapped in the months of the year and finally, the number of days with dust was investigated at Yasouj and Dogonbodan stations. The results showed that Dogonbadan Station with the frequency of 2381 had the highest dust incidence during the statistical period. The review of codes indicates that the two codes 6 and 7 were the most frequent at all stations. Code 6 at Dogonbadan, Likak, Imamzadeh Jafar and Thirud stations in 2012 was at Yasouj Station in 2009 and at Dehdasht station in 2008, with the highest frequency. Code 7 was also reported at Dogonbadan Station in 1992 and at Yasouj Station in 1371. The process of dusts at Yasouj and Dogonbadan stations also indicate that both cold-run stations in the year have had a drought-reducing process and the warm months have not been trendy. Both stations showed an increasing trend on an annual basis Manuscript profile
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  2 - Effects of Karoun Pipeline Transfer Projects on Creation or Expansion of Khouzestan Riverside Centers Using GIS & RS Technologies
  Atefeh Bosak Hourie Aarabi Moghaddam zahra hejazizadeh meysam toulabi nejad
  This study was carried out to investigate the impacts of Karoun water branches transference projects on creation or intensification of Khuzestan dust points. For this purpose, daily climatic parameters (temperature, precipitation, horizontal view, moist and wind) and re More

  This study was carried out to investigate the impacts of Karoun water branches transference projects on creation or intensification of Khuzestan dust points. For this purpose, daily climatic parameters (temperature, precipitation, horizontal view, moist and wind) and required water debit for 9 synoptic and hydrometric stations within a 30-year statistical period were collected. Missing data were recovered and sorted by using Matlab,Minitab and Excel software. Also satellite data and images were used to study vegetation, soil moist and dust particles conditions in the specific area. According to the greenhouse gas procedures during 1985 to 2015, the studied period was broken into two periods, one before global warming (1985-1995) and the other after intensification of global warming (1996-2015). Then by using statistical methods and remote sensing the mentioned periods were investigated. The results from investigating long term debit of Karoun river showed that there is 171 m3/s decrease in second statistical period than the first one. During the second period, local dust has increased in comparison with the first period but vegetation index (NVDI) has 13% decrease. Also the vastness and value of soil moist in east of basin have increasing trend and the role of dam construction is evidently influential. This trend has been decreasing around Shadegan wetland in west of basin, as the result, with passing flows over this area, because of adherence reduction, soil particles disserve from the ground and cause most of the dust in Khuzestan and Karoun riverbasin. Manuscript profile
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  3 - Investigation and Correlation Test of Temperature Time Series and Dusty Days in Hamedan Province
  Amir Gandomkar          
  Dust has always been considered as one of the most important environmental hazards and has undesirable environmental impacts. This study aims to investigate the trend of dusty days and temperature time series in Hamedan province and the effect of temperature series on t More

  Dust has always been considered as one of the most important environmental hazards and has undesirable environmental impacts. This study aims to investigate the trend of dusty days and temperature time series in Hamedan province and the effect of temperature series on the number of dusty days. In this regard, the number of dusty days as well as average temperature, minimum temperature and maximum temperature of the stations in Hamedan, Nozheh Hamedan and Malayer, during the statistical period of 1992-2012, were used. At first, the Normality test of the data was performed by Anderson-Darling test and then the normal and abnormal months were separated. Then for non-normal months, Mann Kendall test and for normal months, t test and Least Squares method were used. Finally, the Correlation test was performed, using the Pearson Correlation and Linear Regression tests. The results showed that the temperature time series in the months with specific trends have been increasing. Also, the number of dusty days has decreased in the cold months of the year and increased in the warm ones. According to the Prediction model, the occurrence of this phenomenon will have an increasing trend in the future. Manuscript profile
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  4 - Prioritization and Identification of Dust Storm Sources in Fars Province
  Amirreza Amirazodi Mohammad Jafary Salman Zareh Hassan Khosravi
  The purpose of this study was to identify and prioritize dust storm sources in Fars province. The data collection tool in this study is two types of questionnaires including AHP and SWOT. Using AHP method, the questionnaires were extracted and weighted by 20 professors More

  The purpose of this study was to identify and prioritize dust storm sources in Fars province. The data collection tool in this study is two types of questionnaires including AHP and SWOT. Using AHP method, the questionnaires were extracted and weighted by 20 professors and experts. Strengths, weaknesses, opportunities and threats of Fars Province in the field of dust storm resources were prepared by SWOT questionnaire with a 5 point Likert scale. Finally, it was used to determine the appropriate strategy in the area of dust storm sources. The SWOT questionnaire was completed by thirty experts and professors proficient in the province. Nine factors including Human Penetration Index, Early Crop Changes, Precipitation Efficiency Coefficient, Human Indicators of Soil Degradation (Human Indices), Frequency of Dust Storms, Soil Physical Properties, Precipitation, Drought and Temperature (Natural Indicators) were investigated. The results of the study showed that 31.3% of the province's area was in a very high class and 19.48% of the province's area was in a high class for being prone to dust. Internal factors (strengths and weaknesses) in Fars province were compared in pairs. The relative weight of weaknesses is 0.223 and the relative weight of strengths is 0.763. The final score of internal factors for the province is 3.296. External factors are also compared in pairs. The relative weight of threats is 0.345 and the relative weight of opportunities is 0.655. The final score of external factors was 3.152. Manuscript profile
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  5 - Stochastic Planning of Resilience Enhancement for Electric Power Distribution Systems against Extreme Dust Storms
  M. Haghshenas R. Hooshmand M. Gholipour
  Resilience in power systems refers to the system's ability to withstand severe disturbances with a low probability of occurrence. Because in recent years extreme dust storms have caused severe damage to Iran's electricity industry, especially in the south and southwest, More

  Resilience in power systems refers to the system's ability to withstand severe disturbances with a low probability of occurrence. Because in recent years extreme dust storms have caused severe damage to Iran's electricity industry, especially in the south and southwest, in this paper proposed a new scenario-based stochastic planning model for enhancement of power distribution systems resilience against extreme dust storms. In proposed model, in the first stage, the investment costs to improve the distribution system resilience against extreme dust storms are minimized due to the financial constraints, and in the second stage, the expected operating costs in dust storm conditions are minimized due to the operating constraints. Because network's insulation equipment are major cause of distribution system vulnerabilities in the dust storms, measures in the planning stage include replacement of porcelain insulators with silicon-rubber type, installation of automatic tie switches and installation of emergency generators. In the second stage, the measures are divided into preventive actions and corrective actions, and coordination between stages 1 and 2 is implemented in such a way that the results of each stage depend on the decision variables of the other stage. The simulation results for IEEE 33-bus test system and a 209 bus radial distribution network located in Khuzestan province, Iran, confirm the efficiency of the proposed model in different financial conditions. Manuscript profile
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  6 - Analysis of geochemical features of sabzevar dust, using Marble Dust Collector (MDCO)
  آرش امینی بهنام  شفیعی
  Dust is one of the atmospheric phenomena that has adverse environmental effects and consequences. In order to study dusts in Sabzevar, samples were collected at the end of each season in 1390. In this research, sampling containers were installed in 16 locations on t More

  Dust is one of the atmospheric phenomena that has adverse environmental effects and consequences. In order to study dusts in Sabzevar, samples were collected at the end of each season in 1390. In this research, sampling containers were installed in 16 locations on the roofs of houses and governmental offices based on the main and sub geographical directions and trapped samples in MDCO were measured by 0.0001 accuracy scale. For geochemical studies due to the volume of dust collected and the importance of the samples, basic oxides and trace elements of fine dust were measured using atomic absorption and ICP methods. Results has shown that the maximum dust volume were collected in the spring while the concentration of most polluting elements is higher in autumn. In terms of pollution, Cadmium and Zinc are of primary importance in sabzevar due to their very high pollution coefficient. Chromium and Nickle are of secondary importance with being in the range of moderate pollution and significant pollution coefficient. In the current situation, the pollution of elements such as copper, lead and arsenic in the dust of Sabzevar is not critical and worrying. Manuscript profile