Weather time scales will be needed for models to accurately simulate the dynamic contribution to future precipitation changes with global warming. This will better reproduce spatial patterns and reduce regional uncertainties, especially in the tropics.
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This research shows how to optimise the observational uncertainty description for data assimilation schemes in the special case of state dependent observational uncertainty.
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New data assimilation method leads to large improvements in forecast accuracy when satellite observations of electromagnetic radiation emanating from the Earth were used to inform the data assimilation scheme.
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Extreme daily accumulated rainfall is greater when convection is organised, because convection is localised in relatively fixed locations once it’s organised, which increases the accumulated extreme rain over long timescales.
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Overall, the inaugural Australian Countdown finds that Australia is vulnerable to the impacts of climate change on health, and that policy inaction in this regard threatens Australian lives.
In a number of respects, Australia has gone backwards and now lags behind other high income countries such as Germany and the United Kingdom. Examples include the persistence of a very high carbon-intensive energy system in Australia, and a slow transition to renewables and low-carbon electricity generation.
In this study a very high-resolution simulation of a Hector thunderstorm – a large regularly occurring storm near Darwin – is analysed and the hydrating properties of the overshoots are examined.
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Under future global warming, models shows increases in the wettest day of the season or year exceeds the range of changes explained by natural variability in most land areas.
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A new study explores a new, probabilistic way of prediction of stratospheric warming events in the Northern Hemisphere based on dynamical arguments produces meaningful forecasting information around ten times longer than traditional model forecasting.
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If you are a stormchaser or just someone who loves the theatre of wind, lightning, heavy rain and hail when a storm whips through, then you are perfectly placed to help climate science with the new WeatheX app.
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The Extreme Rainfall Research Program of the Centre of Excellence for Climate Extremes (CLEX) held a workshop on October 4 at the University of New South Wales (Sydney). There were 30 participants representing the CLEX nodes, Bureau of Meteorology, CSIRO, NSW Office of Environment and Heritage and National Centre for Atmospheric Research.
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Research brief: Categorising and naming marine heatwaves
Research brief: Redesigning the Tropical Pacific Observing System
Research brief: Changes to weather features of atmospheric conversion lines drive future changes to rainfall
Research brief: Data assimilation strategies for state dependent observation error variances
