Key role of Southern Ocean water masses in global heat uptake using Argo measurements ...
<!--!introduction!--> The global ocean plays a major role in moderating atmospheric temperature rise, thereby buffering climate change. Amongst the various oceanic regions undergoing warming, the Southern Ocean is a primary heat sink in the climate system. Subantarctic Mode Water (SAMW) and An...
| Main Authors: | , , |
|---|---|
| Format: | Conference Object |
| Language: | unknown |
| Published: |
GFZ German Research Centre for Geosciences
2023
|
| Subjects: | |
| Online Access: | https://dx.doi.org/10.57757/iugg23-0651 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5016838 |
| Summary: | <!--!introduction!--> The global ocean plays a major role in moderating atmospheric temperature rise, thereby buffering climate change. Amongst the various oceanic regions undergoing warming, the Southern Ocean is a primary heat sink in the climate system. Subantarctic Mode Water (SAMW) and Antarctic Intermediate Water (AAIW) are the dominant water masses in the upper Southern Ocean, and play a fundamental role in ocean ventilation and the uptake of heat and carbon into the ocean interior. This talk will first focus on understanding the geographic variability in the formation of SAMW and AAIW in the Southern Ocean based on a volume budget analysis, as well as the advection of heat and freshwater by SAMW and AAIW along the Antarctic Circumpolar Current (ACC), using observationally based hydrographic and eddy diffusivity datasets. Our results suggest that the distribution of SAMW and AAIW is set by their formation due to subduction and mesoscale and small-scale turbulent mixing, which shows strong ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
|---|