PROJECT 2.5: Improving Australia’s climate model (ACCESS)
The Australian Community Climate and Earth System Simulator (ACCESS) equips Australia with a global climate modelling capability that is uniquely concerned with the weather and climate of the Australasian and Southern Hemisphere region.
We’re improving ACCESS’s simulation of important climate processes in the Australasian region, focusing on rainfall and weather extremes, as well as climate variability and change. This will allow for multi-year to multi-decadal projections, as well as enabling better forecasting on daily through to seasonal time scales.
The key outcome is a national preparedness that enables Australia to better manage weather and climate impacts, including future risks and opportunities; saving lives, resources and money. As a result, policy makers and researchers will have access to better climate information.
For more information
Dr Harun Rashid, CSIRO
This project is contributing to meeting the following climate challenges:
Through improvements to ACCESS’s simulation of processes controlling Australia’s rainfall, this project will enhance the quality of projections that are available to water managers and planners.
This work will provide agricultural and environmental systems managers with better projections and climate information with which to make management decisions.
This project provides the underpinning climate modelling that is necessary for better understanding the feedbacks between climate and the carbon cycle.
Improvements to ACCESS in relation to weather extremes will enhance our ability to provide coastal planners with the information they need to make informed coastal planning and management decisions.
Work in this project will enhance our ability to project changes in the frequency and intensity of extreme climate conditions, which will better inform infrastructure planning.
Project publications and papers
- Colman RA, Brown JR, Franklin C, Hanson L, Ye H, Zelinka MD, 2019, Evaluating cloud feedbacks and rapid responses in the ACCESS model. Journal of Geophysical Research, doi:10.1029/2018jd029189 | Full paper
- Luhar AK, Galbally IE, Woodhouse MT, Thatcher M. 2017. An improved parameterisation of ozone dry deposition to the ocean and its impact in a global climate-chemistry model. Atmospheric Chemistry and Physics, 17, 3749-3767, doi: 10.5194/acp-17-3749-2017 | Full paper
- Nguyen H, Protat A, Zhu HY, Whimpey M. 2017. Sensitivity of the ACCESS forecast model statistical rainfall properties to resolution. Quarterly Journal of the Royal Meteorological Society, 143, 1967-1977, doi: 10.1002/qj.3056 | Abstract
- Rashid HAH, Hirst AC. 2016. Mechanisms of improved rainfall simulation over the Maritime Continent due to increased horizontal resolution in an AGCM. Climate Dynamics, 49, 1747–1764, doi:10.1007/s00382-016-3413-z | Full paper
- Rashid H, Zhu H and Sun Z. 2017. Initial documentation of key systematic errors in a high-resolution (60 km grid) version of the current ACCESS atmospheric model. Earth Systems and Climate Change Hub Report No. 1, NESP Earth Systems and Climate Change Hub, Australia. Full report | Non-technical summary
- Wheeler MC, Zhu HY, Sobel AH, Hudson D, Vitart F. 2017. Seamless precipitation prediction skill comparison between two global models. Quarterly Journal of the Royal Meteorological Society, 143, 374-383, doi:10.1002/qj.2928 | Abstract
- Zhu H, Jakob C, Ma Y, Warren R, Santra A, Yorgen S and Sun Z. 2018. A comprehensive report of model systematic errors in the latest ACCESS climate models. Earth Systems and Climate Change Hub Report No. 3, NESP Earth Systems and Climate Change Hub, Australia. Full report | Non-technical summary
- Zhu HY, Maloney E, Hendon H, Stratton R. 2017. Effects of the changing heating profile associated with melting layers in a climate model. Quarterly Journal of the Royal Meteorological Society, 143, 3110-3121, doi:10.1002/qj.3166 | Abstract