Work in Progress

DISCLAIMER

NEW RESULTS

  1. Ekman and equatorially-modified Ekman theory analysis (see Wittenberg 2002; Perez and Kessler 2007 draft)
    1. Why would you expect Southeast Trades to produce stronger tropical circulation cell north of the equator?
      1. QuikSCAT climatological wind stress, Ekman transports, and equatorially-modified Ekman transports with rs=1/(2 day) along 140W Figure
      2. QuikSCAT climatological wind stress, Ekman meridional transport and vertical velocity, and equatorially-modified Ekman V,w with rs=1/(2 day) along 140W Figure
      3. QuikSCAT climatological wind stress, contribution to vertical velocity from Ekman dU/dx, dV/dy, contribution to vertical velocity from equatorially modified Ekman dU/dx,dV,dy Figure
    2. How does MOM4 lapaclian seasonal cycle compare?
      1. Wind stress, eq-modified Ekman transports, 60-m depth integrated U,V from model along 140W Figure
      2. What if I apply a 60-day low-pass filter? Figure
      3. What if I subtract geostrophic U,V in upper 60-m? Figure
      4. Wind stress, eq-modified Ekman V,w, 60-m depth integrated V, w(60m) from model along 140W Figure
      5. What if I apply a 60-day low-pass filter? Figure
      6. What if I subtract geostrophic V,w in upper 60-m? Figure
      7. Comparison of extrema in Vek (black line) based on winds and Vageostrophic (blue line) from the model and w along equator
      8. Comparison of minima in w_ek (black line) based on winds and w_ageostrophic (blue line) from the model
      9. 1/r_s (blue line) computed by minimizing the difference between Vek and Vageostrophic
      10. 1/r_s (blue line) computed by minimizing the difference between w_ek and w_ageostrophic
      11. Same as f. except using optimal 1/r_s for V and 1/r_s for w Figure
      12. Same as g. except using optimal 1/r_s for V and 1/r_s for w Figure
      13. Same as h. except using optimal 1/r_s for V and 1/r_s for w Figure
    3. What does stratification look like? How is r_s related to stratification?
      1. SST | (60-day low-pass)
      2. d(SST)/dy (cold front) | (60-day low-pass)
      3. dT/dz at 60m | (60-day low-pass)
      4. MLD | (60-day low-pass)

SLIGHTLY OLDER RESULTS

  1. Aug 2007 Comparison of NCAR and Laplacian viscosity run TIWs (repeatability, spatio-temporal structure) and mean circulation. Comparison of nonlinear momentum terms that affect V-Vg-Ve.
  2. Jun 2007 Comparison of NCAR and Laplacian viscosity and impact on circulation and TIWs before new spin-up
  3. May 2007 Nonlinear advective terms and relation to U-Ug and V-Vg-Ve; Comparison of A. Wittenberg Ekman transport and traditional Ekman transport
  4. Apr/May 2007 Seasonal cycle studies: Comparison of u,v,w with obs, study of TIWs in box/rectification/temperature fluxes; 3-D Streamline tests
  5. March 2007 Spin-up/spin down figures when TIWs are weak
  6. February 2007 Ekman, geostrophic analysis of WAN/STAN runs -- investigate noise in 10% runs -- analysis of seasonal cyclce
  7. January 2007 More figures of WAN, STAN, SEAS runs. Asymmetry, nonlinearity, EOF analysis. (***Found problem in model spatio-temporal interpolation of winds and need to rerun key runs.)
  8. November 2006 MOM4 spinup convergence figures and preliminary figures of WAN, STAN, SEAS runs. Link to Fall AGU Poster.
  9. October 2006 Development of MOM4 Climatological Run. Testing of different fluxes.
  10. August-September 2006 Analysis of Risien et al. (in preparation, 2006) QuikSCAT Climatology and some early MOM4 test experiments.
  11. July 2006 Results from year 20 of Poseidon Run #28 (reduced gravity, 20 layers) and preliminary PUMP sampling analysis, influence of background dissipation rate (Runs #23, 24, 29, and 30) on equatorial circulation.
  12. June 2006 Set-up of model topography for MOM4 and Results from 19-year spin-up of Poseidon Run #28 (reduced gravity, 20 layers)
  13. April-May 2006 Comparison of Poseidon Run #19, 23, 24, 25 (reduced gravity, 20 layers)
  14. March 2006 Analysis of QuikSCAT (and CORE) wind stress curl and divergence
  15. Jan-Feb 2006 Test runs of the Poseidon model in tropical Pacific (baroclinic version, 34 layers)
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Reorganized: 21 September 2007