Changes between Version 7 and Version 8 of user/ctlod/ORCA2Runs/PHC9
- Timestamp:
- 2008-10-23T16:39:42+02:00 (16 years ago)
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user/ctlod/ORCA2Runs/PHC9
v7 v8 1 1 [[BR]] 2 [[PageOutline:inline]] 3 4 ---- 5 6 ---- 7 8 ---- 2 [[PageOutline]] 9 3 10 4 = '''PHC_9 run''' = 11 5 This run is based on the PHC_8 one except on the way the wind stress and module are managed.[[BR]] 12 6 Wind stress seems to be too low (in PHC_8) in high latitudes compared to what we have in using standard [[BR]] 13 CLIO data this component is capital for the water mass formation & penetration in these areas so it must be increased. 7 CLIO data this component is capital for the water mass formation & penetration in these areas so it must be increased.[[BR]] 14 8 So we do the following test:[[BR]] 15 - compute off-line the daily climatology of the fields ( ||U||.u)clim and (||U||.v)clim using 6hourly wind velocities.[[BR]]9 - compute off-line the daily climatology of the fields (wndm.u)clim and (wndm.v)clim using 6hourly wind velocities.[[BR]] 16 10 - we use the wind module computed with the 6hourly wind velocities which is much more energetics than the one computed using climatological velocities.[[BR]] 17 11 … … 20 14 ---- 21 15 22 === DFS4 wind module and wind stress ===23 Plot below show thewind stress differences:16 === DFS4 wind module, wind stress & wind components === 17 Annual mean wind stress differences: 24 18 {{{ 25 19 * (||wndm||.U)clim - ||wndm||clim.Uclim … … 28 22 [[Image(DFS4_Strong_Smooth_Uu_Uv_1y.png, 60%)]] 29 23 30 Plot below show the wind module variance differences: 24 Seasonal variability wind stress differences: animation (gif) 25 26 [[Image(DFS4_anim_Strong_Smooth_U.u_1dclim.gif, 60%)]] 27 [[Image(DFS4_anim_Strong_Smooth_U.v_1dclim.gif, 60%)]] 28 29 Annual mean wind module variance differences: 31 30 {{{ 32 31 * SQRT[ ||wndm||clim^2 - (Uclim^2 + Vclim^2) ] … … 35 34 36 35 36 Annual mean wind velocity U: 37 [[Image(DFS4_u10_1991-2000_ymean.png, 60%)]] 38 39 Annual mean wind velocity V: 40 [[Image(DFS4_v10_1991-2000_ymean.png, 60%)]] 37 41 ---- 38 42