ORCA page 3 (interannnual)

  1. Some statistics:
    1. RMS of annual and interannual transport:
      Transport magnitude (vecmag)   RMS of major axis component (vecmaj)
    2. Variance ellipses: With mean vectors   Omit vectors

  2. ORCA at the movies:
    (I recommend downloading these gif files and watching them as loops in your favorite movie viewer)
    1. Interannual transport (original run, plain vectors): Totals    Anomalies (1.2Mb)
    2. Interannual transport totals (poly): original run   nb3 run (6.5Mb)
    3. Interannual transport totals (poly): original run   nb3 run (6.5Mb) (color by anomalies)
      Arrow length indicates total transport. Color shading indicates anomalies in the direction of the mean flow (red=strengthening, blue=weakening)!
    4. Interannual transport anomalies (poly): original run   nb3 run (5.5Mb)

    5. EEOFs over lags: Original run   nb3 run (500Kb each)

  3. Various and miscellaneous initial things ....
    1. Grid structure: I,J of velocity grid   Detail
    2. Some salinity on sigma 25.5 for Amy Solomon: Mean   RMS

  4. Some comparisons among the 2 runs of ORCA
    Compare the original run (KG 06/07 papers) and "newbathy3" run (adjust bathymetry around the Solomon Sea)
    1. A page with details about the changes
      (The new run is labeled "Second test run" on that page)
    2. Mean 0-2060m transport vectors: Original   NB3
      Another version (poly_area): Original   NB3
    3. Mean transport profiles (integrated along the sections):
      1. Meridional transport:
        1. EAC at 30°S   
        2. NQC at 13°S   
        3. NGCC at 7°S   
        4. NGCC at 3°S
      2. Zonal transport:
        1. SEC 158°E
        2. NGCC at 144°E
    4. Compare Fig.3 of K-G (07, annual cycle) from the two runs: Original   NB3 (200Kb pdf files)

    5. Some details of the nb3 run on the Equator (sources of the EUC), and comparisons with TAO.
      1. ORCA transport near the equator:
        1. Mean (x,z) section on the equator (Compare ORCA original and nb3, and Johnson et al)
        2. Integrated transport map (Original and nb3)
      2. Maps of velocity on isopycnals:
        1. Whole Pacific: Sigma-theta=24,25,26
        2. Far west Pacific: Sigma-theta=24,25,26,26.5,27   (Original ORCA)
        3. Bathymetry in ORCA and reality
      3. Time series of u at the W Pacific TAO moorings:
        ORCA05 (nb3) and TAO: 147°E   156°E   165°E

  5. Standard EOFs of the (variance ellipse) major axis velocity: Percent variance   EOFs   PCs

  6. Extended EOFs of major axis velocity (12 lags of 4 months each):
    1. Percent variance: nb3   original run
    2. TAFs: (nb3) TAFs 1-4   Phase orbits
      Original run: TAFs 1-4   Phase orbits: 1 and 2   3 and 4
    3. Meridional sections of EOFs over lags (original run):
      1. EOF 1: 146.5°E    149.5°E    153.5°E    154.5°E    160.5°E    165.5°E   
      2. EOF 1+2: 146.5°E    149.5°E    153.5°E    154.5°E    160.5°E    165.5°E   
    4. Phase vectors of EEOF transport:
      Various ways of choosing between the 180° ambiguity in the vector direction!
      (nb3 run unless noted)
      1. All inflow in midbasin   Original run
      2. Outflow S of about 23°S
      3. Closest to the direction of the mean flow
    5. Movie of EEOF 1 evolution: Original run   nb3 run (500Kb each)
      Very wierd EEOF movie (500Kb)

  7. EEOFs of Z15:
    12 lags of 4 months each:
    1. Percent variance
    2. TAFs
    3. EOF sequential maps over lags: EOF 1    EOF 2    EOF 3    1+2+3+4

  8. WBC transport by balancing the incoming zonal transport (a la Godfrey 75):
    1. WBC anomaly timeseries: original run   nb3 run
    2. Comparisons of zonal transport at 160°E with WBC transport:
      Original ORCA   NB3   NB3 to 38°S   EEOF 1
    3. Correlations   Add EEOF 1 (12/4)
    4. Results from Rossby model:
      1. Terms of Godfrey WBC: c=3.5,D=24   c=2.5,D=24   c=3.0,No damping
      2. Compare ORCA and Rossby/Godfrey WBC: Pure Rossby   Use ORCA Vs at 28.5°S   RMS   Correlation

    5. Results from a composite El Niño (See complete results from the composite El Niño on its own page)
      1. Rossby h and u at the western boundary: h   u
      2. (y,t) sections of h_RW and u_RW at various longitudes: 140°W   160°W   180°   Western boundary
      3. Mean incoming zonal transport at the WB
      4. Godfrey WBC from composite El Niño forcing
        1. Southern hemisphere: Years -1 to +2   To year +3   
        2. Northern hemisphere: Years -1 to +3
        3. Total WBC, N and S hemisphere   Exclude 3°S-3°N
        4. Complete WB solution: h, with (U_RW,WBC) vectors
      5. RMS of Rossby solution (compare N and S hemisphere): h at 160°E-160°W   WBC transport

Old stuff of mostly historical interest:
  1. EEOFs with 6 lags of 3 months each (not enough!):
    1. Percent variance
    2. (Compare annual cycle: Reconstructed vectors by lag)
    3. PCs: 1 and 2   3 and 4   Phase orbits
    4. Reconstructed zonal and meridional components by lag: 158°E   172°E   27°S   20°S   14°S   8°S
    5. EOF maps: 1   2
    6. EOF vectors: 1   2
  2. Testing the EEOF code with a test wave (sin(pi(x+y+t)/10):
    Test pattern has a wavelength of 20° in x and y, and a period of 20 months.
    Experiments are done with 6 lags, with the lag length varying from 1 to 5 months.
    1. Percent variance of EOFs (various lags overlaid)
    2. EOFs: Lag length 1: EOF1   EOF2    Lag length 2: EOF1   EOF2
    3. Time amplitude functions: Lag length 1   Lag length 2
    4. Example of EOFs at a point as a function of lag: Lag length 1   2   3   4   5
    5. Add a trend to the sine wave:
      1. Percent variance
      2. TAFs
      3. EOFs: 2 lags   3 lags
      4. EOFs over lags: 2 lags   3 lags

Return to main page

Other pages: