climate is the most important factor which control desertification .in order to detect climate changes in desert zones, time trend analysis is applied to extreme indices in kashan station using extreme climate index software (ecis). results show significant trends in extreme indices during the past decade 1995-2004 and the pronounced warming is associated with a negative trend in cold extremes....

conclusions based on of this study, management has an important role in creating a positive safety climate. individual characteristics can influence thee safety climate. management commitment to safety is an important factor in the success of safety programs. results final scoring was done on a scale of one through ten. the highest scores were achieved in personal values (mean score, 8.7 ± 1.36...

because of low spatial resolution and simplifications in meteorological processes in global circulation models, they cannot sufficiently simulate the weather, comparing to the regional models; then, spatial and temporal downscaling of the gcm outputs are needed for decreasing errors of the global circulation models. there are two methods of downscaling: statistical and dynamic. weather generato...

■ Abstract Variability of the atmospheric and oceanic circulations in the earth system gives rise to an array of naturally occurring dynamical modes. Instead of being spatially independent or spatially uniform, climate variability in different parts of the globe is orchestrated by one or a combination of several climate modes, and global changes take place with a distinctive spatial pattern res...

Climate has always been changing during the lifetime of the earth, and has appeared in the form of the ice age, hurricanes, severe and sudden temperature changes, precipitation and other climatic elements, and has dramatically influenced the environment, and in some cases has caused severe changes and even destructions. Some of the most important aspects of climate changes can be found in preci...

Environmental factors are being increasingly taken into account in the increasing development of urbanization and citizen residential requirements. Climate and climate conditions are among the environmental factors that have always influenced human welfare. Climate has always been incorporated in old urban structures in Iran and can be easily observed. Despite the importance of climate-related ...