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Research brief: Marine heatwaves increase around Tasmania

April 30, 2018 1:59 am Published by Comments Off on Research brief: Marine heatwaves increase around Tasmania

Centre of Excellence researchers have identified 12 marine heatwave types off the east coast of Tasmania, a location recognised as a global warming hotspot. Here the average sea surface temperatures here have been rising at four times the global average and trends in marine heatwaves are showing significant increases in number.

Research brief: New research rewrites Southern Ocean mixing calculations

April 26, 2018 11:41 pm Published by Comments Off on Research brief: New research rewrites Southern Ocean mixing calculations

World-first modelling research– which used several million CPU hours in Australia’s fastest supercomputer, Raijin, and ran calculations non-stop for over a year – has revealed the Southern Ocean mixes water between the depths and surface far more easily than previously thought.

Research brief: Why record-breaking droughts had very different impacts on Amazon forests

April 17, 2018 3:49 am Published by Comments Off on Research brief: Why record-breaking droughts had very different impacts on Amazon forests

In 2005 the Amazon experienced a once in a century drought. Five years later, in 2010, it was struck by an even worse drought, with even lower rainfall occurring in the dry season. However, the response of the Amazon forest to these two once-in-a-century events showed marked differences.

Research brief: How plants survive droughts

March 13, 2018 11:48 pm Published by Comments Off on Research brief: How plants survive droughts

Understanding which plant species can recover from drought, under what conditions and the processes involved, will help researchers predict plant mortality in response to global climate change. In response to drought, some species die because of embolism-induced hydraulic failure, while others recover, following rehydration. This research focuses on structures and processes that might allow some plants to recover from drought stress via embolism reversal.

Leaves by Ren Ran

Research brief: Mapping transpiration in climate models

February 23, 2018 5:04 am Published by Comments Off on Research brief: Mapping transpiration in climate models

When researchers compared the results derived from FLUXNET data with the results synthesised from the literature, they found substantial differences. As a result, they suggest a new benchmarking metric that could be used to test existing hypotheses embedded in climate models and have mapped a path forward involving using further detailed observations to improve the way coupling/decoupling processes currently represented in climate models.  

NASA image - Sunset over the Phillipines

Research brief: Measuring changes in our atmosphere from seconds to decades

February 23, 2018 4:49 am Published by Comments Off on Research brief: Measuring changes in our atmosphere from seconds to decades

This paper, A census of atmospheric variability from seconds to decades, synthesises and summarises atmospheric variability on time scales from seconds to decades through a phenomenological census. It focuses mainly on unforced variability in the troposphere, stratosphere, and mesosphere.

Research brief: Understanding water-use efficiency in plants

February 23, 2018 4:21 am Published by Comments Off on Research brief: Understanding water-use efficiency in plants

This study explored the key sources of uncertainty when scaling leaf-level understanding of water-use efficiency to ecosystem scales. The results provide key insights into interpreting (ecosystem-scale) eddy-covariance derived water-use efficiency in an ecophysiological context.

Research brief: New evapotranspiration product

February 23, 2018 3:19 am Published by Comments Off on Research brief: New evapotranspiration product

This paper combines existing global evapotranspiration estimates to create a new global product with an observationally constrained estimate of uncertainty. It utilises the latest release of ground-based estimates to show that even point-based evapotranspiration estimates have information about much larger spatial scales.

How climate models work

December 23, 2017 10:50 am Published by Comments Off on How climate models work

CLEX Chief Investigator Prof Christian Jakob at a recent Monash University STEM talk takes his audience ​into the world of climate models. It’s a talk that looks under the hood to see what powers modern climate models.