Eddy variability in the Coral Sea

  1. Basic facts about the wind
    1. Vanuatu, New Caledonia and Fiji region:
      1. ERS and Quikscat mean curl
      2. Wind stress seasonal cycle:   Values      Anomalies       Taux alone
      3. Curl seasonal cycle:   Values       Anomalies       Along 166°E
      4. Map of Vanuatu
    2. Marquesas/Nuku Hiva region:
      1. Compare mean curl behind W. Pacific islands vs Nuku Hiva      
      2. Seasonal cycle near the Marquesas:     Vector Tau     Taux     Curl
      3. Map of the Marquesas (pdf)

  2. Figures from Kessler and Gourdeau (2006 GRL) showing the ERS winds and resulting Sverdrup balance. (pdf files)
    1. Curl and zonal Sverdrup transport     (Analogous figure from Quikscat winds: gif pdf)
    2. Meridional structure of the wind and its derivatives
    3. d/dy(Curl) term inside the Sverdrup zonal current integral
    4. Zonal transport from Levitus, Sverdrup balance, and GRACE surface u_g
    5. Meridional section of u_g in the central Pacific from Levitus

  3. Towards a Sverdrup calculation of the CSCC
    1. Bathymetry near Vanuatu:   Just Vanuatu     Extend to New Caledonia
    2. What if Vanuatu is a solid barrier?
      1. Region chosen as "west of Vanuatu" for Sverdrup calculation    
      2. Sverdrup zonal transport if Vanuatu is considered a solid barrier

  4. Evidence of the CSCC in other data sets:
    1. Mean u_g across the Auckland-Solomon St XBT track   (Track map)
    2. Meridional sections of u_g from CARS
    3. Glider crosstrack absolute u_g:   png   pdf

  5. Various Island Rule calculations, old and new ....
    1. OLD: (These plots are NOT intercomparable! They use different island definitions, and different differencing (1° vs 2°).)
      1. I.R. vs plain Sverdrup zonal transport     Difference
        (Fiji: 17°-18°S, Vanuatu: 15°-18°S, NC: 20°-22°S. 1°x1° ERS winds, centered differencing).
      2. I.R. streamfunction in W Pacific
      3. Sverdrup transport detail near W Pacific islands
    2. NEW:
      1. Island Rule streamfunctions from ERS and Quikscat winds
      2. Checks/comparisons between the ERS vs Quikscat inputs to Island Rule calculation:
        1. Wind:   Zonal   Meridional   Vector
        2. Curl     W Pacific detail
        3. Streamfunction     W Pacific detail
        4. Zonal transport     W Pacific detail
      3. Check various aspects of the Island Rule calculation
        1. Original 1/4° vs 1°-linefit Curl
        2. Sverdrup transport resulting from 1/4° vs 1°-linefit Curl
        3. Island Rule vs plain Sverdrup streamfunction

  6. Complex demodulation of the Argo temperatures
    1. The original data:   Positions overlaid on SSH     Time series of temperature (measured and high-passed)
    2. Compare 70 and 90-day complex demodulation with the UH bandpass (TT_HIGH)
    3. 70-day bandpass (A(t)cos(omega t + phi(t))
    4. Complex demodulation   Amplitude     Phase     Period
    5. Phase lags in   days     distance (km)
    6. Composite eddy:   Jul 05-Apr 06     Jul-Oct 05

Other related pages:

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NOAA logo Dr. William S. Kessler
7600 Sand Point Way NE
Seattle WA 98115 USA
Tel:   206-526-6221
Fax:  206-526-6744
E-mail:  william.s.kessler@noaa.gov
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