Posted by Liz Adams on Sep 1, 2015 in Abstracts, Abstracts 2014
Antarctic sea ice response in ensemble CMIP5 historical and ozone perturbation simulations Abstract The net Southern Hemisphere sea ice area has a small statistically significant positive trend in recent decades in contrast to the decay in the Arctic sea ice cover. There have been a number of theories suggesting that it is driven by strengthening of SAM as a result of ozone depletion; increasing stratification of the ocean from sea ice melt and/or ice shelf melting,...
Read More »
Posted by Liz Adams on Sep 1, 2015 in Abstracts, Abstracts 2014
The Antarctic Ozone Hole during 2011 Abstract The Antarctic ozone hole of 2011 is reviewed from a variety of perspectives, making use of various data and analyses. The ozone hole of 2011was relatively large in terms of maximum area, minimum ozone level and total ozone deficit, being ranked amongst the top 10 in terms of severity of the 32 ozone holes adequately characterised since 1979. In particular, the estimated integrated ozone mass effectively removed within the ozone...
Read More »
Posted by Liz Adams on Sep 1, 2015 in Abstracts, Abstracts 2014
Evaluation of ACCESS model clouds over the Southern Ocean using synthetic brightness temperature program and COSP package Abstract Sea Surface Temperature (SST) warm bias in the Southern Ocean (SO) is a common problem in most climate models. We investigate the causes of this problem by performing comparisons between the modeled cloud and radiative properties and satellite observations. We use the Australian Community and Climate Earth System Simulator (ACCESS) model to...
Read More »
Posted by Liz Adams on Sep 1, 2015 in Abstracts, Abstracts 2014
Archiving of Cape Grim air Abstract Regular collection of Cape Grim air in high pressure metal cylinders for the purpose of maintaining an archive of atmospheric composition has continued since 1978. A history of sampling events, protocols, techniques and re-construction of atmospheric trace gas records through 1995 has been given previously [Langenfelds et al., 1996 and references therein] and updated through 2008 [Lan-genfelds et al., 2011 and references therein]. Recent...
Read More »
Posted by Liz Adams on Sep 1, 2015 in Abstracts, Abstracts 2014
Nonlinear precipitation response to El Nino and global warming in the Indo-Pacific Abstract Precipitation changes over the Indo-Pacific during El Niño events are studied using an Atmospheric General Circulation Model forced with sea-surface temperature (SST) anomalies and changes in atmospheric CO2 concentrations. Linear increases in the amplitude of the El Niño SST anomaly pattern trigger nonlinear changes in precipitation amounts, resulting in shifts in the location and...
Read More »
