This set of data are derived from 12 high-resolution ocean model simulations with a realistic paleo-bathymetry. They can be used to investigate the sensitivity of the E–O Southern Ocean to TG deepening and changing wind stress. They also can be used to analyses the zonal momentum budget of the Southern Ocean to interpret the simulated dynamics. The model domain is circumpolar and covers the latitude range between 84°S and 25°S. The model has 1/4 degree horizontal grid spacing and 50 unevenly spaced vertical levels (5000 m). The restoring time scale to 10 days. This dataset includes the final 15-years averaged model simulation outputs.
12 Simulations:
katharina38_MediumTG_MediumDP_final: the experiment with 1500m TG and 1000m DP, maximum wind stress at 53°S, 0.1 N/m2.
katharina38_MediumTG_MediumDP_5n: the experiment with 1500m TG and 1000m DP, maximum wind stress at 48°S, 0.1 N/m2.
katharina38_MediumTG_MediumDP_5s: the experiment with 1500m TG and 1000m DP, maximum wind stress at 58°S, 0.1 N/m2.
katharina38_MediumTG_MediumDP_10s: the experiment with 1500m TG and 1000m DP, maximum wind stress at 63°S, 0.1 N/m2.
katharina38_MediumTG_MediumDP_final_double_wind: the experiment with 1500m TG and 1000m DP, maximum wind stress at 53°S, 0.2 N/m2.
katharina38_MediumTG_MediumDP_10s_double_wind the experiment with 1500m TG and 1000m DP, maximum wind stress at 63°S, 0.2 N/m2.
katharina38_300mTG_DeepDP_final: the experiment with 300m TG and 1000m DP, maximum wind stress at 53°S, 0.1 N/m2.
katharina38_300mTG_DeepDP_5n: the experiment with 300m TG and 1000m DP, maximum wind stress at 48°S, 0.1 N/m2.
katharina38_300mTG_DeepDP_5s: the experiment with 300m TG and 1000m DP, maximum wind stress at 58°S, 0.1 N/m2.
katharina38_300mTG_DeepDP_10s: the experiment with 300m TG and 1000m DP, maximum wind stress at 63°S, 0.1 N/m2.
katharina38_300mTG_DeepDP_final_double_wind: the experiment with 300m TG and 1000m DP, maximum wind stress at 53°S, 0.2 N/m2.
katharina38_300mTG_DeepDP_10s_double_wind the experiment with 300m TG and 1000m DP, maximum wind stress at 63°S, 0.2 N/m2.
Different files: in the dataset (acronyms, units, explanations):
THETA [℃] is potential temperature.
UVEL [m/s] is zonal velocity.
UVELSQ [m^2/s^2] is square of zonal velocity.
VVEL [m/s] is meridional velocity.
VVELSQ [m^2/s^2] is square of meridional velocity.
VVELTH [℃ m/s] is meridional transport of potential temperature, which can be used to calculate meridional heat transport.
Momentum budget term:
momKE [m^2/s^2] is Kinetic Energy in momentum Equation
PHIBOT [m^2/s^2] is Bottom Pressure Pot.(p/rho) Anomaly, which can be used to calculate topographic form stress.
PHIHYD [m^2/s^2] is Hydrostatic Pressure Pot.(p/rho) Anomaly, which can be used to calculate topographic form stress.
TOTUTEND [m/s/day]is Tendency of Zonal Component of Velocity
USidDrag [m^2/s^2] is U momentum tendency from Side Drag
UBotDrag [m^2/s^2] is U momentum tendency from Bottom Drag
Um_Diss [m^2/s^2] is U momentum tendency from Dissipation (Explicit part)
Um_Advec [m^2/s^2] is U momentum tendency from Advection terms
Um_AdvRe [m^2/s^2] is U momentum tendency from vertical Advection (Explicit part)
Um_AdvZ3 [m^2/s^2] is U momentum tendency from Vorticity Advection
Um_Cori [m^2/s^2] is U momentum tendency from Coriolis term
Um_dPhdx [m^2/s^2] is U momentum tendency from Pressure/Potential gradient
Um_Ext [m^2/s^2] is U momentum tendency from external forcing (wind forcing)