Research brief: Do wet soils affect rainfall?
How wet the soil is before a storm can determine the amount of rain that falls. This research also produced some interesting findings for rainfall in Australia.
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RP1 Extreme Rainfall News | CLEX
Research brief: Topography plays key role in Jakarta’s extreme rainfall
Topography plays a key role in the development of extreme rainfall events in Jakarta, Indonesia. The IOD and MJO play a greater role in these extremes than ENSO.
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Research brief: Changes to weather features of atmospheric conversion lines drive future changes to rainfall
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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Research brief: Data assimilation strategies for state dependent observation error variances
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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Research brief: Improving assimilation of radiance observations by implementing model space localisation in an ensemble Kalman filter
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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Research brief: Hybrid Cyclones in the Australian Region
Two papers by Centre of Excellence researchers are the first to systematically investigate and document hybrid cyclones in the Australian region.
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Research brief: How organised convective systems produce more extreme rainfall.
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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Research brief: Australian climate policy inaction threatens lives
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.
Research brief: The mechanisms leading to a stratospheric hydration by overshooting convection
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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Research brief: Increased precipitation under climate change consistent across models
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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