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SUMMARY:A trio of Antarctic climate variability and meteorology studies - 
 Adrian McDonald\, University of Canterbury\, New Zealand
DTSTART:20140806T100000Z
DTEND:20140806T110000Z
UID:TALK53449@talks.cam.ac.uk
CONTACT:Dr. Pranab Deb
DESCRIPTION:This presentation will give an overview of three distinct\, bu
 t connected\, studies completed at the University of Canterbury within my 
 group. The first focuses on stratosphere-troposphere (ST) coupling in the 
 Southern hemisphere and examines CMIP5 models relative to reanalyses to ex
 amine whether various properties of the model\, such as model top and repr
 esentation of stratospheric ozone depletion\, have an impact on the qualit
 y of the model representation of ST coupling. This study then compares run
 s from the NIWA-UKCA model which include changes in both greenhouse gases 
 and ozone depleting substances and ones which maintain ozone depleting sub
 stances at the 1960 level. The second study describes an initial analysis 
 of data from the WindSat satellite aimed at deriving an integrated view of
  the response of the atmosphere over a range of variables to anomalies in 
 the Southern Annular Mode. This is potentially useful as WindSat observati
 ons are only currently assimilated into the NCEP CFSR reanalyses product a
 nd therefore provide an independent analysis from other widely used renaly
 ses. The WindSat data is then also shown to be useful in the study of cycl
 ones (via simple cyclone tracking) and a range of cyclone composites are c
 ompared to previous work. The final piece of work presented will examine t
 he impact of the Amundsen Bellinghausen Sea Low on the surface meteorology
  observed above the Ross Ice Shelf and portions of the Ross Sea. In partic
 ular\, this study suggests that the depth\, longitude and latitude of the 
 low are important in modulating the meteorology in this region\, principal
 ly by variations in the frequency of specific weather patterns. If time pe
 rmits\, I will also discuss an upcoming project which expands on the final
  study described.
LOCATION:British Antarctic Survey\, Room 187
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