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Preliminary findings from the Australian contribution to the Chemistry-Climate Model Initiative (CCMI) are presented. This initiative builds on the 2nd Chemistry Climate Modelling Validation (CCMVal-2), Atmospheric Chemistry & Climate (AC&C) and other global modelling.
The ACCESS 1-0 and ACCESS 1.3 now have a set of 3 historical ensemble members which include the late 20th Century and early 21st Century (2020) simulations. Recently we have just completed a new set of experiments designed to investigate the impact of the perturbation in ozone since 1960.
This study aims to assess the ability of climate models to reproduce observed stratosphere-troposphere coupling. Coupling between the stratosphere and troposphere is examined via the Southern and Northern Annular Modes (SAM and NAM). These modes…
The Southern Hemisphere mid-latitudes, particularly the area around south-eastern Australia and New Zealand, has been suggested as one of the regions where ozone recovery might first be detected…
Trends in surface atmospheric variables, namely temperature, wind speed and direction, cloud cover, and precipitation, display subtle patterns that are likely linked to climate change and the major modes of climate variability. In particular…
The continent of Antarctica has experienced some of the largest rates of both surface warming and cooling found anywhere on the planet. Unlike in the Arctic, where sea ice has been declining…
Large-scale zonal asymmetries in the climatological spatial pattern of atmospheric variables such as geopotential height, temperature, and trace gas concentration are primarily dictated by the characteristics of quasi-stationary Rossby waves (QSWs).
A decade of radiosonde observations of wind and temperature in the troposphere and lower stratosphere have made it possible to compile a climatology of low-frequency gravity waves above Davis, Antarctica (69S, 78E). Wave characteristics, extracted using wavelet analysis [Zink and Vincent, 2001]…
A decade of radiosonde observations of wind and temperature in the troposphere and lower … stratosphere have made it possible to compile a climatology of low-frequency gravity waves … above Davis, Antarctica (69°S, 78°E). Wave characteristics, extracted using wavelet … analysis [Zink and Vincent…