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Investigation on the trend of circadian changes in tropospheric ozone in Isfahan

Abbasali Arvin

Volume 22, Issue 87 , November 2013, , Pages 43-47

Abstract
  Cluster analysis and trend line comparison were used to investigate the trend of circadian changes in tropospheric ozone in Isfahan. First, we categorized similar changing patterns in the statistical period using cluster analysis. In this regard, circadian changes of ozone were divided into four groups ...  Read More

Droughts Zoning Hormozgan province

Nasrin Nikandish; Abbasali Arvin; Vajiheh Shahsavari; Farshad Soleymani

Volume 22, SEPEHR , July 2013, , Pages 23-29

Abstract
  Drought is a global phenomenon which can happen nearly everywhere and result in major economic, social and environmental costs and losses. In this study, annual precipitation data of 7 synoptic stations and 8 pluviometric stations in a 20 year period (1986-2005) were applied to investigate climatic droughts ...  Read More