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Research brief: Ice particle numbers plummet in Southern Ocean’s clouds

October 19, 2018 1:20 pm Published by Comments Off on Research brief: Ice particle numbers plummet in Southern Ocean’s clouds

In 2016, Centre of Excellence for Climate Extremes researchers and colleagues measured Southern Ocean INPs for the first time in over four decades. The numbers of these particles were extremely low compared to other oceans and 100 times lower than the previous Southern Ocean measurement program conducted in the 1970s.

Hail the new storm app for citizen science, WeatheX

October 17, 2018 10:00 am Published by Comments Off on Hail the new storm app for citizen science, WeatheX

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.

Research brief: Drivers of Antarctic sea ice volume change in CMIP 5 models

October 8, 2018 2:53 pm Published by Comments Off on Research brief: Drivers of Antarctic sea ice volume change in CMIP 5 models

CLEX researchers find that ocean sea-ice models generally agreed on changes to average yearly cycle of freeze and melt in Antarctica, with dynamic processes dominating the sea ice edge and thermodynamic processes dominating the interior of the sea ice pack. However, the models disagreed about the trends of sea ice volume.

Research brief: How strong currents influence Tasmania’s marine heatwaves

October 8, 2018 12:09 pm Published by Comments Off on Research brief: How strong currents influence Tasmania’s marine heatwaves

An unusually strong East Australian Current extension leads to an increased probability of marine heatwave days around Tasmania. Conversely, a strong Zeehan Current during these seasons decreased the probability of marine heatwave days in this region.

Extreme Rainfall RP workshop, October 4, 2018

October 5, 2018 2:15 pm Published by Comments Off on Extreme Rainfall RP workshop, October 4, 2018

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.

Research brief: Magnetic Suppression of Zonal Flows on a Beta Plane

October 4, 2018 12:03 pm Published by 1 Comment

One of the most striking features of Jupiter –-a gaseous giant with no solid surface-- is the coloured bands encircling the planet. These bands are strong zonal jets that flow in Jupiter’s atmosphere, similar in a way to the jets in Earth's atmosphere. Until recently, we had almost no direct observations beneath Jupiter's clouds.

Understanding the origin of ENSO diversity for improved forecasts

October 2, 2018 1:34 pm Published by Comments Off on Understanding the origin of ENSO diversity for improved forecasts

Forecasting El Niño Southern Oscillation (ENSO) events, and anticipating how they may change with global warming remains a significant challenge for climate researchers. An ENSO complexity workshop held in November 2017 produced a follow-up paper summarising what we know about ENSO and its predictability.

Research brief: Influence of the Madden-Julian oscillation on Costa Rican mid-summer drought timing

September 27, 2018 9:56 am Published by Comments Off on Research brief: Influence of the Madden-Julian oscillation on Costa Rican mid-summer drought timing

The Central American mid‐summer drought (MSD) is the decline in rainfall during the middle of the wet season over Central America, which has been shown to have strong effects on agriculture and bushfires in Costa Rica. The Madden–Julian oscillation (MJO) has been shown to influence Costa Rican rainfall on intra‐seasonal time scales, and therefore may be important to the MSD. This research aims to find the connection between the MJO and MSD.

Research brief: Summertime Heatwaves in Brisbane

September 25, 2018 11:20 am Published by Comments Off on Research brief: Summertime Heatwaves in Brisbane

Heat waves are the deadliest natural hazard in Australia. Motivated by the prediction that the number of extremely hot days in subtropical Australia will increase in a warmer climate, this study aims to develop a comprehensive picture of the processes leading to extreme temperatures.