Publication Abstracts
Chen et al. 2023
Chen, J.-J., N.C. Swart, R. Beadling, X. Cheng, T. Hattermann, A. Jüling, Q. Li,
, T. Martin, M. Muilwijk, A.G. Pauling, A. Purich, I.J. Smith, and M. Thomas, 2023: Reduced deep convection and bottom water formation due to Antarctic meltwater in a multi-model ensemble. Geophys. Res. Lett., 50, no. 24, e2023GL106492, doi:10.1029/2023GL106492.The additional water from the Antarctic ice sheet and ice shelves due to climate-induced melt can impact ocean circulation and global climate. However, the major processes driving melt are not adequately represented in Coupled Model Intercomparison Project phase 6 (CMIP6) models. Here, we analyze a novel multi-model ensemble of CMIP6 models with consistent meltwater addition to examine the robustness of the modeled response to meltwater, which has not been possible in previous single-model studies. Antarctic meltwater addition induces a substantial weakening of open-ocean deep convection. Additionally, Antarctic Bottom Water warms, its volume contracts, and the sea surface cools. However, the magnitude of the reduction varies greatly across models, with differing anomalies correlated with their respective mean-state climatology, indicating the state-dependency of the climate response to meltwater. A better representation of the Southern Ocean mean state is necessary for narrowing the inter-model spread of response to Antarctic meltwater. %CS MAP NCCS
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BibTeX Citation
@article{ch05610j, author={Chen, J.-J. and Swart, N. C. and Beadling, R. and Cheng, X. and Hattermann, T. and Jüling, A. and Li, Q. and Marshall, J. and Martin, T. and Muilwijk, M. and Pauling, A. G. and Purich, A. and Smith, I. J. and Thomas, M.}, title={Reduced deep convection and bottom water formation due to Antarctic meltwater in a multi-model ensemble}, year={2023}, journal={Geophysical Research Letters}, volume={50}, number={24}, pages={e2023GL106492}, doi={10.1029/2023GL106492}, }
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RIS Citation
TY - JOUR ID - ch05610j AU - Chen, J.-J. AU - Swart, N. C. AU - Beadling, R. AU - Cheng, X. AU - Hattermann, T. AU - Jüling, A. AU - Li, Q. AU - Marshall, J. AU - Martin, T. AU - Muilwijk, M. AU - Pauling, A. G. AU - Purich, A. AU - Smith, I. J. AU - Thomas, M. PY - 2023 TI - Reduced deep convection and bottom water formation due to Antarctic meltwater in a multi-model ensemble JA - Geophys. Res. Lett. JO - Geophysical Research Letters VL - 50 IS - 24 SP - e2023GL106492 DO - 10.1029/2023GL106492 ER -
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