Quantitative modeling of the impact of tropical teleconnection on Antarctic sea ice ...

• Main Author: Chentao, Song
• Format: Conference Object
• Language: unknown
• Published: GFZ German Research Centre for Geosciences 2023
• Subjects: Antarctic; Indian; Pacific; Antarc*; Sea ice
• Online Access: https://dx.doi.org/10.57757/iugg23-1461; https://gfzpublic.gfz-potsdam.de/pubman/item/item_5017137

<!--!introduction!--> In recent decades, some researches show that various tropical sea surface temperature variability contributes to Antarctic climate change, especially the sea ice there. On seasonal to interdecadal time scales, atmosphere teleconnections arise from three tropical ocean basins, including the El Niño-Southern Oscillation, the Madden-Julian Oscillation, the Indian Ocean Dipole/Basin Mode, the Atlantic Meridional Mode, the Interdecadal Pacific Oscillation and the Atlantic Multidecadal Oscillation, are thought to have an impact on Antarctic sea ice via different mechanisms. However, the specific processes of some teleconnections are still unclear. In particular, there’s a lack of quantitative simulation of the impact of tropical teleconnections on Antarctic sea ice. Moreover, the relative impact of AMO and IPO on Antarctic circulation and sea ice over different time periods has yet to be clearly discussed. Here, using a hierarchy of numerical models with different levels of complexity, ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ...