CLIMATOLOGY: The Southern Influence

01 Southern Hemisphere Tropical Cyclone Climatology

A climatology of cutoff lows in the Southern Hemisphere

[1] The occurrence of cutoff lows (COLs) in the Southern Hemisphere at 500 hPa is studied for a 31-year period using atmospheric NCEP-NCAR reanalysis. The methodology combines objective detection and tracking for cyclonic systems with visual inspection in order to select those systems that segregate equatorward from the main westerlies. Hemispheric charts and frequency distributions are present...

A Cloud Climatology of the Southern Great Plains ARM CART

Cloud amount statistics from three different sources were processed and compared. Surface observations from a National Centers for Environmental Prediction dataset were used. The data (Edited Cloud Report; ECR) consist of synoptic weather reports that have been edited to facilitate cloud analysis. Two stations near the Southern Great Plains (SGP) Cloud and Radiation Test Bed (CART) in north-cen...

The application of Extreme value analysis method in heat wave hazard climatology; case study in Mid-Southern Iran

The application of Extreme value analysis method in heat wave hazard climatology; case study in Mid-Southern Iran Abstract Greenhouse warming poses the main cause of atmospheric hazards’ exacerbation and emergence in recent years. Earth planet has been witnessing frequent and severe natural hazards from the distant past; however, global warming has strongly influenced the occurrence of some a...

climatology ofcyclones and theirtracking over southern coasts ofcaspian sea

the southern coasts of caspian sea is subjected to synoptic/mesoscale weather systemsranging from locally enhanced sea breeze formation and small local front systems to synoptic scale cyclones.this study presents climatology of cyclones over the southern coasts of caspian sea covering a ten year period1996-2005. altogether 57 cyclones were formed during the ten year period. anoticeable seasonal...