توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Analysis of time series of temperature and atmospheric systems of maximum temperature in the city
اطلاعات انتشار: اولین همایش بین المللی بحران های زیست محیطی ایران و راهکارهای بهبود آن، سال
تعداد صفحات: ۵
The temperature effect on the environment and its role in planning the micro and macro–modeling of temperature behavior in recent years has been the focus of researchers. This article has been reviewed according to the temperature data in ISFAHAN in the years 2005–1951 AD, when the temperature series. The results indicate that the average temperature during the 54–year periodic oscillations around Have long–term average, but has decreased the percentage of variability in temperature after 1997 CE. Linear trend of the data is very weak, but the data are well fitted with a quadratic curve. Linear trend of the data is very weak, but the data are well fitted with a quadratic curve. The smoothed index represents the average temperature has increased. A Seasonal changes in the index indicates that the lowest summer temperature fluctuations and temperature fluctuations are greatest in the fall. The cumulative curves represent the normalized residual increase in average temperature is from 1997 onwards. Check daily maximum absolute temperature during the hottest days in the period showed that the absolute maximum temperature above 40 ° C, which often occurred in July.<\div>

۲Investigation and modeling of air pollution standard index in ISFAHAN
نویسنده(ها): ، ،
اطلاعات انتشار: دومین کنفرانس بین المللی مخاطرات محیطی، سال
تعداد صفحات: ۷
Air quality standards within a certain period, allowable levels of pollutants in the atmosphere has the distinction And the permitted levels of pollutants that may be present in an ecological system are defined. 2TEquation is the standard index of air pollution 2TDistinct values of the parameters of the pollutants that have been converted to a number of class numbers been and will be reported to the public. Each class works on the environment is defined. In this paper we calculate the standard index of air pollution in the 86–1383 Appropriate statistical model was fitted to it .This indicator shows the number of days with poor air quality in the fields of freedom and BOZORGMEHR that point on the adverse effects of urban transportation and air quality shows. The statistical model is fitted to the index. 0T2TPollutant0T2T 0T2Tstandards0T2T 0T2Tindex,0T2T 0T2Tcalculated0T2T 0T2Tfrom the0T2T 0T2Trelationship0T2T 0T2Tand0T2T 0T2Tits value0T2T 0T2Tis0T2T 0T2Trounded0T2T 0T2Tto the0T2T 0T2Tnearest0T2T 0T2Tinteger0T2T. 0T2TTo calculate0T2T 0T2Tthe0T2T 0T2Tindex for0T2T 0T2Turban0T2T 0T2Tozone0T2T 0T2T8–hour0T2T 0T2Taverage0T2T, 0T2Tone0T2T–hour 0T2Taverage0T2T 0T2Tozone levels0T2T 0T2Tin urban0T2T, 0T2TCarbon0T2T 0T2Tmonoxide0T2T, 0T2Tsulfur dioxide0T2T, 0T2Tnitrogen dioxide0T2T, 0T2Tand particulate matter0T2T 0T2Thas0T2T 0T2Tbeen used0T2T.0T2T Pollutant0T2T 0T2Tstandards0T2T 0T2Tindex,0T2T 0T2Tcalculated0T2T 0T2Tfrom the0T2T 0T2Trelationship0T2T 0T2Tand0T2T 0T2Tits value0T2T 0T2Tis0T2T 0T2Trounded0T2T 0T2Tto the0T2T 0T2Tnearest0T2T 0T2Tinteger0T2T. 0T2TTo calculate0T2T 0T2Tthe0T2T 0T2Tindex for0T2T 0T2Turban0T2T 0T2Tozone0T2T 0T2T8–hour0T2T 0T2Taverage0T2T, 0T2Tone0T2T–hour 0T2Taverage0T2T 0T2Tozone levels0T2T 0T2Tin urban0T2T, 0T2TCarbon0T2T 0T2Tmonoxide0T2T, 0T2Tsulfur dioxide0T2T, 0T2Tnitrogen dioxide0T2T, 0T2Tand particulate matter0T2T 0T2Thas0T2T 0T2Tbeen used0T2T.<\div>

۳The impact of climate change on water resources Middle East
نویسنده(ها):
اطلاعات انتشار: همایش ملی راهکارهای پیش روی بحران آب در ایران و خاورمیانه، سال
تعداد صفحات: ۶
Close relationship between the hydrological cycle and climate system there. Water resources to reduce Middle East with regard to global climate change will be. Iran country and consequently Middle East in the semi arid region located in arid and water resources are limited. Runoff, river discharge, groundwater, flood and drought are all strongly influenced by rainfall, one of the most important elements are among climate, accommodation. In this paper, relying on staff information (IPCC) and obtaining information from relevant agencies to assess the effects of climate change on water resources, water crises in the Middle East and paid for Analytic Research enmity – are documents, the purpose of research, of climate change in recent years the Middle East and prevent the water crisis in Iran. Also provide part of the results of studies done on temperatureand precipitation changes that indicated increased fluctuations in temperature and precipitation is in the country, the possible effects overset balance between the country's climatic and hydrological systems, including increased flooding due to rainfall and temperature, changes in water levels of lakes and above all competition between water needs will be referred<\div>
نمایش نتایج ۱ تا ۳ از میان ۳ نتیجه