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Ocean-atmosphere interactions and multi-scale climate variability in a changing climate
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Decadal Variability of Sea-surface Temperatures and Ocean Heat Content in the Southern Ocean
Tuesday 8th @ 1430-1450, Concert Hall
Angela Ditri* , College of Earth, Ocean, and Environment, University of Delaware, Newark, DE 19716, USA
Enhui Liao, Geosciences Department, Princeton University, Princeton, New Jersey, USA
Young-Heon Jo, Department of Oceanography, Pusan National University, Busan, South Korea
Xiao-Hai Yan, College of Earth, Ocean, and Environment, University of Delaware, Newark, Delaware, and State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen, China
Presenter Email: alditri@udel.edu |
| Though the global mean surface temperature and greenhouse gas concentrations have reached all time record-highs, the effect on the Earth's climate is not clear. Decadal variations in different parameters, along with changes in space are an important aspect when studying global climate change. The Southern Ocean (SO) plays a critical role in the global climate change variability, making it an important area to research. Two major parameters used to study climate fluctuations are sea-surface temperatures (SST) and ocean heat content (OHC), as the oceans high heat capacity results is less natural signals in these variables. In this study, decadal variations in SST and OHC and their relationship in different regions of the Southern Ocean are compared. The relationship between SST and OHC can be used to identify heat-sinking regions. Areas with high correlation coefficients, as seen in the Indian and Atlantic Ocean sector of the SO, may indicate strong vertical heat transport into the deeper ocean. In contrast, the low correlation coefficient seen in the western Pacific sector may suggest horizontal heat transport. Results provide further insight and explanation to the dynamics behind of the local variations in the Southern Ocean on decadal timescales that could ultimately play a role in the understanding of cross-basin heat transport and global climate change variability. |
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