Tag Archive: Antarctica

Research Brief: Seasonal and Interannual Variability of the Weddell Gyre

November 1, 2021 4:57 pm Published by Comments Off on Research Brief: Seasonal and Interannual Variability of the Weddell Gyre

The Weddell Gyre, located east of the Antarctic Peninsula, is one of the largest features of the ocean circulation of the Southern Hemisphere. A deeper understanding of the dynamics in this remote region will shed light on the role of the gyre in our present climate and help us understand its potential evolution with climate change.

UTAS01: data collation of the climate-cooling gas dma in antarctic snow, sea ice and UNDERLYING sea water

August 18, 2021 9:29 am Published by Comments Off on UTAS01: data collation of the climate-cooling gas dma in antarctic snow, sea ice and UNDERLYING sea water

Dimethyl sulfide (DMS) is a biogenic source of sulfate aerosol that influences the climate system by reducing solar radiation and altering cloud properties. Recent observations suggest that DMS may play a dominant role in the aerosol and cloud formation along the Antarctic coast where DMS is produced by marine microbes that reside on top, in, and under sea ice. However, the role of DMS remains unclear especially over the regional scale, partly due to the lack of compilation of DMS data.

Weather and Climate Interactions Report – April 2021

April 14, 2021 10:39 am Published by Comments Off on Weather and Climate Interactions Report – April 2021

Welcome to the first Weather and Climate Interactions RP report. The new program name is simply a result of rationalising CLEX’s continuing research program under new headings that more clearly delineate the focus of the work we do.

RP4 Teleconnections & Variability Report – December 2020

December 14, 2020 11:45 am Published by Comments Off on RP4 Teleconnections & Variability Report – December 2020

It has been remarkable how much we have achieved in this extraordinarily difficult year. Research coming out of the Teleconnections and Variability program over the past four months has strongly focused on how influences in one part of the world can have direct impacts on another.

MON02: THE ANTARCTIC OZONE HOLE AND AUSTRALIAN RAINFALL

August 6, 2020 3:47 pm Published by Comments Off on MON02: THE ANTARCTIC OZONE HOLE AND AUSTRALIAN RAINFALL

In this project you will investigate the competing effects the Antarctic ozone hole and increasing greenhouse gases have on the Australian summer season rainfall, using the latest climate models. These are now available on the National Computing Infrastructure (NCI) supercomputer and are being used as input into the Intergovernmental Panel on Climate Change’s Sixth Assessment Report.

ANU03: Understanding ocean heat transport to the Antarctic continental shelf

August 6, 2020 1:17 pm Published by Comments Off on ANU03: Understanding ocean heat transport to the Antarctic continental shelf

This project investigates access pathways of the relatively warm water to the continental shelf by analysing output from a coupled ocean – sea ice model. The student will gain experience in polar oceanography and in the analysis and visualisation of large numerical datasets using python.

Research brief: Natural variations shift rain-bearing winds south

June 30, 2020 10:46 am Published by Comments Off on Research brief: Natural variations shift rain-bearing winds south

CLEX researchers found the influence of climate change and the depletion in stratospheric ozone are the major drivers over the Atlantic Oceans that shift westerly winds further south. However, over the Pacific and Indian oceans natural variations induced by sea surface temperature changes in the tropical Pacific also play an important role.

Research brief: How warm water reaches Antarctica

May 2, 2020 4:00 am Published by Comments Off on Research brief: How warm water reaches Antarctica

Using a high-resolution ocean model, CLEX researchers unexpectedly found 80% of the transport in the warm water layer, known as Circumpolar Deep Water, approaches Antarctica in the colder regions.