Observed multi-decadal trends in subsurface temperature adjacent to the East Australian Current

Hemming, Michael P.; Roughan, Moninya; Malan, Neil; Schaeffer, Amandine

doi:https://doi.org/10.5194/os-19-1145-2023

Articles | Volume 19, issue 4

https://doi.org/10.5194/os-19-1145-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/os-19-1145-2023

© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 19, issue 4

Research article

|

26 Jul 2023

Research article |

| 26 Jul 2023

Observed multi-decadal trends in subsurface temperature adjacent to the East Australian Current

Michael P. Hemming, Moninya Roughan, Neil Malan, and Amandine Schaeffer

Data sets

Multi-decadal ocean temperature time-series and climatologies from Australia's long-term National Reference Stations M. Roughan, M. Hemming, A. Schaeffer, T. Austin, H. Beggs, M. Chen, M. Feng, G. Galibert, C. Holden, D. Hughes, T. Ingleton, S. Milburn, and K. Ridgeway https://doi.org/10.26198/5cd1167734d90

Model code and software

UNSW-oceanography/NRS-temperature: v1.0.0.0 Michael Hemming https://doi.org/10.5281/zenodo.8112175

Short summary

We estimate subsurface linear and non-linear temperature trends at five coastal sites adjacent to the East Australian Current (EAC). We see accelerating trends at both 34.1 and 42.6 °S and place our results in the context of previously reported trends, highlighting that magnitudes are depth-dependent and vary across latitude. Our results indicate the important role of regional dynamics and show the necessity of subsurface data for the improved understanding of regional climate change impacts.