Sensitivity study of the wave-driven current in an Arctic frazil-pancake ice zone

摘要: A coupled ocean-ice-wave model is used to study ice-edge jet and eddy genesis during surface gravity wave dissipation in a frazil-pancake ice zone. With observational data from the Beaufort Sea, possible processes are evaluated using sensitivity experiments. As energy dissipated, was transferred into floe through radiation stress. Later, turn current ocean-ice interfacial Since most of dissipated at edge, jets, which contained strong horizontal shear, appeared both zone ocean. Meanwhile, propagation direction determines velocity partition along-ice-edge cross-ice-edge directions, strength velocity. The momentum applied (cross-ice-edge) increased (decreased) with larger incident angle, favorable condition for producing stronger mesoscale eddies, vice versa. rate increases (decreases) (smaller) wavenumber, enhances (reduces) eddy. may extend deep layer (> 200 m). If water depth too shallow (e.g., 80 m), be largely dampened by bottom drag, no visible eddies found. results suggest that bathymetry wavenumber (magnitude direction) important wave-driven genesis.