Category: RP3 Drought
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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Research brief: New formula supersedes Priestley-Taylor equation for evaporation
New research suggests that the concept of maximum evaporation reported here is a natural attribute of an extensive wet evaporating surface. This provides a fundamental new insight as to how radiation, evaporation and temperature are interlinked.
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Research brief: Improving climate model estimates of photosynthesis response to elevated CO2
This research shows accounting for mesophyll conductance in climate models may have important implications for carbon and water fluxes in boreal regions.
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Research brief: How climate projections change with different model subsets
This work examines how climate projections are affected by using different subsets of available climate models. The researchers find several variables need to be optimised independently to get the best results.
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Research brief: Calibration in the GIMMSv3.0g dataset may have affected dryland NDVI values globally
Calibration errors in the widely used Global Inventory Monitoring and Modeling System Version 3 NDVI (GIMMSv3.0g) dataset caused significant errors in the trends over some of Australia’s dryland regions. Though identified over Australia, the problematic calibration in the GIMMSv3.0g dataset may have effected dryland NDVI values globally. These errors have been addressed in the updated GIMMSv3.1g which is strongly recommended for use in future studies.
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Research brief: How to select the best models to predict future warming
This study illustrates how future uncertainty of climate models in predicting hot extremes is controlled by two factors, both related to amplification of hot extremes through land-atmosphere interactions
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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: New global runoff estimates help define past energy and water budgets
Together with a recent paper estimating evaporation and transpiration from the land surface, this paper brings the community a step closer to observationally constrained estimates of the historical land surface energy and water budgets
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Research brief: How to avoid overconfidence in climate model ensembles
In this review paper, researchers contextualise the broad and seemingly disparate range of attempts to define and address model dependence within climate model ensembles, and offer concrete advice on how best to avoid overconfidence.
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Research brief: Algorithm reveals how plants respond to warming climate
Researchers develop a novel algorithm that should enable improved prediction of the function of global ecosystems in a warming climate.
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Research brief: How ENSO drives Australian heatwaves
By employing an atmosphere-only version of ACCESS, CLEX researchers generated multiple sea surface temperature patterns of the same El Nino and La Nina events, and assessed how this influenced heatwaves over various Australian regions.
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Research brief: Drought not an automatic result of climate change
New research in Nature Climate Change suggests droughts may not increase as a result of climate change. This finding resulted from researchers investigating an apparent climate model contradiction that saw climate change projections of the 21st Century produce increased droughts along with more run-off and a greening of the landscape
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Research Briefs
Research brief: Data assimilation produces more realistic representation of Antarctic warming
Research brief: New statistical method identifies robust reconstructions of past ENSO events
Research brief: New method produces more precise and complete representation of wave climate variability
Research brief: Statistical correction reveals 25% decline in future rainfall over the SW Pacific