Dryness is defined by ratio of accumulated annual rainfall and potential evapotranspiration (PET). Understanding changes in dryness will help stakeholders and policy makers making long-term plans in water management and mitigation/adaptation. In this study, the 50-km resolution climate simulations from the NARCliM outer domain will be used to assess the future changes in dryness.
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Climate change will affect prescribed burning days in the future. Unexpectedly, it is not all bad news, but as the coming century progresses there are definitely changes ahead for our firefighters in Australia when it comes to preparing for a fire season, especially along the east coast of Australia.
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The first comprehensive worldwide assessment of heatwaves down to regional levels has revealed that in nearly every part of the world heatwaves have been increasing in frequency and duration since the 1950’s. The research has also produced a new metric, cumulative heat, which reveals exactly how much heat is packed into individual heatwaves and heatwave seasons.
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CLEX researchers implemented a new model of plant hydraulics into the Community Atmosphere Biosphere Land Exchange (CABLE) land surface model to robustly project future drought impacts on Australian vegetation.
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This project seeks to better understand the changing nature of Australian droughts by synthesising satellite and ground observations in combination with state-of-the-art climate model projections.
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An analysis of new climate model projections by Australian researchers from the ARC Centre of Excellence for Climate Extremes shows southwestern Australia and parts of southern Australia will see longer and more intense droughts due to a lack of rainfall caused by climate change.
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Australian researchers assess the ability of recently released climate models to simulate the climate of Australia and the new scenarios for 21st Century climate change.
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All data sources agree that positive IOD events are becoming stronger and occur more often and that the mean-state of the Indian Ocean is moving towards a more positive IOD-like state due to enhanced warming in the west compared to the east.
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CLEX authors and colleagues from major Australian science organisations investigating climate examined the simulation of Australian climate in the new, state-of-the-art Coupled Model Intercomparison Project, phase 6 (CMIP6) models.
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CLEX researchers and colleagues find Australia’s infrastructure would be unable to deal with past flood events and thus is very likely to be unable to mitigate future flooding under climate change.
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To better assess the degree of organisation in radar observations CLEX researchers developed the Radar Organisation Metric (ROME). ROME’s statistical properties suggest it is able to distinguish between the degree of convective organisation, and it also captures different regimes of the monsoon in Northern Australia.
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CLEX researchers found that regions where there is a larger drying trend tend to be more sensitive to land water availability and have more heatwave days. They found that the effect of dry soils before a heatwave varies considerably across Australia.
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