lack of fire behavior studies and the immediate needs posed by the extent of the fire problem in forests of iran require that extensive studies be conducted to develop models to predict fire behavior in the region.in this study, farsite fire area simulator was applied to simulate spread and behavior of two real fires that had occurred in northern forests of iran during 2010 summer and fall seas...

The aim of this work is to develop a top-oil thermal model based on the thermal-electrical analogy and heat transfer principles that captures influence prevailing winds solar radiation which can be generally applied large power transformers. key improvements proposed are calculating coefficient radiator air side using Nusselt number combined forced natural convection, including as an addition s...

We deployed ninety-seven oil-spillsimulating drifters over the continental shelf of the northeastern Gulf of Mexico during five hydrographic surveys conducted from 1997 through 1999. Earlier, sideby-side comparisons with spilled crude petroleum on the ocean surface had demonstrated that these drifters moved on the ocean surface like consolidated oil slicks under light to moderate winds. (Under ...

1. introduction the position of iran in the subtropical region that has made its arid and semiarid climate and the topographic diversity changes this trend of climate. therefore, climate hazards such as frost, flood, dust storm, drought, temperature anomalies, heavy rainfall, avalanches, snow, sleet, etc occur in iran. the northwest of iran experiences the above conditions following the arrival...

Despite mass movements of insects being documented for decades, whether dragonflies migrate in Europe has not yet been experimentally tested. Similarly, little is known about the influence weather on movement decisions and intensity dragonflies. Taking advantage large along Baltic Sea coast Latvia, we investigated European showed directed indicative migratory behaviour how influences their move...

Abstract. In this work, the impact of Los Angeles Basin pollution transport and stratospheric intrusions on surface ozone levels observed in San Gabriel Mountains is investigated based a combination lidar measurements as well WRF-Chem (Weather Research Forecasting with Chemistry) WACCM (Whole Atmosphere Community Climate Model) runs. The number days exceeding National Ambient Air Quality Standa...