Enhanced upper ocean warming projected by the eddy-resolving Community Earth System Model
Xu, G., Chang, P., Small, R. J., Danabasoglu, G., Yeager, S., et al. (2023). Enhanced upper ocean warming projected by the eddy-resolving Community Earth System Model. Geophysical Research Letters, doi:https://doi.org/10.1029/2023GL106100
| Title | Enhanced upper ocean warming projected by the eddy-resolving Community Earth System Model |
|---|---|
| Genre | Article |
| Author(s) | G. Xu, P. Chang, R. Justin Small, Gokhan Danabasoglu, Stephen Yeager, S. Ramachandran, Q. Zhang |
| Abstract | Ocean warming is a key factor impacting future changes in climate. Here we investigate vertical structure changes in globally averaged ocean heat content (OHC) in high- (HR) and low-resolution (LR) future climate simulations with the Community Earth System Model (CESM). Compared with observation-based estimates, the simulated OHC anomalies in the upper 700 and 2,000 m during 1960-2020 are more realistic in CESM-HR than -LR. Under RCP8.5 scenario, the net surface heat into the ocean is very similar in CESM-HR and -LR. However, CESM-HR has a larger increase in OHC in the upper 250 m compared to CESM-LR, but a smaller increase below 250 m. This difference can be traced to differences in eddy-induced vertical heat transport between CESM-HR and -LR in the historical period. Moreover, our results suggest that with the same heat input, upper-ocean warming is likely to be underestimated by most non-eddy-resolving climate models. |
| Publication Title | Geophysical Research Letters |
| Publication Date | Nov 16, 2023 |
| Publisher's Version of Record | https://doi.org/10.1029/2023GL106100 |
| OpenSky Citable URL | https://n2t.org/ark:/85065/d7vt1x5z |
| OpenSky Listing | View on OpenSky |
| CGD Affiliations | OS, CCR |