
Geoscientific model development, Journal Year: 2023, Volume and Issue: 16(9), P. 2539 - 2563
Published: May 10, 2023
Abstract. Arctic Ocean simulations in 19 global ocean–sea-ice models participating the Model Intercomparison Project (OMIP) of Coupled Phase 6 (CMIP6) are evaluated this paper. Our findings show no significant improvements from previous Coordinated Ocean-ice Reference Experiments phase II (CORE-II) to current OMIP. Large model biases and inter-model spread exist simulated mean state halocline Atlantic Water layer OMIP models. Most suffer a too thick deep layer, base, large fresh halocline. The qualitatively agree on variability change freshwater content; sea surface height; stratification; volume, heat, transports through gateways. They can reproduce changes gateway observed early 21st century, with exception Bering Strait. We also found that employing NEMO ocean simulate relatively larger volume heat Barents Sea Opening. Overall, performance is similar between CORE2-forced OMIP-1 JRA55-do-forced OMIP-2 experiments.
Language: Английский