Member Profile

Danielle Udy

PhD Student

The Institute for Marine and Antarctic Studies (IMAS)
University of Tasmania
.
danielle.udy@utas.edu.au

Biography

Danielle completed her BSc (hons) in Geographical Sciences at the University of Queensland in 2014. She then spent four years working as an environmental consultant, which has given her a strong background in the hydroclimate requirements of the water sector across Australia. She recently moved to Hobart to start her PhD at UTAS in mid 2018.

THESIS: Climate dynamics between Australia and Antarctica – utilising ice cores to improve our understanding of long term climate variability and underpin efficient water resource management

Due to limited observation records across Australia, paleoclimate records that represent Australian climate variability provide vital information to further our understanding of Australia’s climate extremes. This project has direct links to the drought and climate variability & teleconnections research programs within the ARC Centre of Excellence for Climate Extremes. Specifically, the project outcomes may help inform parts of the Drought 3.1 & 3.2 projects, as well as the Variability 4.2 & 4.3 projects. Across Australia, the lack of suitable long term climatic records to assess decadal and multidecadal variability is a key limitation in hydroclimate risk assessments. Paleoclimate records indicate that the Australian instrumental record does not capture the full range of hydroclimate variability, misrepresenting the frequency/magnitude of droughts and floods. Antarctic ice cores, sensitive to the regional climate patterns, provide an opportunity to extend and broaden our understanding of Australian climate in the past and into the future. Recent studies have found statistically significant correlations between the Law Dome ice core record and Australian rainfall, particularly in Southwest and Eastern Australia. While possible mechanisms have been suggested, a detailed analysis of the mechanisms driving the Law Dome to Australian rainfall connection has not been undertaken. This study will further investigate the possible mechanisms by utilising additional data from the Law Dome record and a new ice core from Mt Brown South. Improved understanding of climate dynamics captured in the ice cores, gives us more confidence in extrapolating the climate proxy and applying to teleconnection interactions. Understanding variability in the Southern Indo-Pacific is crucial for understanding how Australian climate will respond to climate change.