Tag Archive: ARC Centre of Excellence for Climate Extremes

Research brief: How well can climate models simulate interactions between cool and dry conditions under the current climate?

September 11, 2018 1:07 pm Published by Comments Off on Research brief: How well can climate models simulate interactions between cool and dry conditions under the current climate?

This paper shows that many models overestimate the interaction between hot and dry conditions in wet regions and therefore overamplify heat extremes. The study points to necessary model improvement to increase confidence in future projections of heat extremes.

Research Fellow in Data Assimilation

August 16, 2018 12:31 pm Published by Comments Off on Research Fellow in Data Assimilation

The Centre seeks a highly qualified and motivated individual to create new and innovative data assimilation algorithms for discovering model trajectories that closely track observations in the presence of multi-scale, non-linear and non-Gaussian uncertainties such as those associated with observations and forecasts of clouds, precipitation, aerosols, soil moisture, ice, or ocean colour.

Research brief: If dimethyl sulfide emissions ceased, Earth would warm 0.5C in a decade

August 15, 2018 12:12 pm Published by Comments Off on Research brief: If dimethyl sulfide emissions ceased, Earth would warm 0.5C in a decade

The study finds important regional consequences for precipitation and clouds formation if large changes in dimethyl-sulfide emissions were to occur.  In a hypothetical case where all marine DMS emissions cease completely, we find the Earth would warm by approximately 0.5 degrees C over a ten-year period.

Research brief: Southern Ocean’s clockwise eddies are most productive

August 15, 2018 10:43 am Published by Comments Off on Research brief: Southern Ocean’s clockwise eddies are most productive

CLEX researchers found that counter-clockwise rotating eddies in the Southern Ocean mix the ocean deeper in winter, allowing more nutrients to enter their interiors, leading to higher productivity.  This work is important because eddy productivity plays a significant role in the exchange of carbon between the ocean and the atmosphere.

Research brief: Climate models under-represent tropical heating variations

August 14, 2018 11:33 pm Published by Comments Off on Research brief: Climate models under-represent tropical heating variations

This research demonstrates how cloud processes, steep mountains, tropical coastlines, the daily changes in solar insolation and planetary-scale waves work together to cause large variations in the tropical heating that drives global circulation patterns. Many of these effects are under-represented in global climate models.

UNSW15: Does the frequency, intensity or duration of heatwaves and droughts affect how people vote in elections?

August 14, 2018 6:27 pm Published by Comments Off on UNSW15: Does the frequency, intensity or duration of heatwaves and droughts affect how people vote in elections?

Using France as a case study, this project aims to create a climatology of heatwaves and droughts to investigate possible connections with voting patterns. The ultimate goal would be to help predict voting patterns in the future and to see whether the techniques could be applied more widely to other countries.

UNSW14: Impacts of Southern Ocean warming on global sea-level rise

August 14, 2018 6:25 pm Published by Comments Off on UNSW14: Impacts of Southern Ocean warming on global sea-level rise

In this project the vacation scholar will use models, observations and theory to better understand the processes driving ocean heat uptake in the Southern Ocean, with particular applications to sea-level rise.

MON7: Reassessing the initiation and predictability of El Nino events

August 14, 2018 3:59 pm Published by Comments Off on MON7: Reassessing the initiation and predictability of El Nino events

Despite the improvement in our understanding, numerical models and observations, El Nino events have dramatic impacts on climate and extreme weather around the globe. This project will further study the nature of this stochastic forcing and its relationship to background SSTs.