EOF (Principal Component) statistical patterns have been computed for surface velocity in Monterey Bay during 1999 using the following procedure:

  1. Interpolate radial current over 20 degree sectors.
  2. Combine radial currents hourly using 3 km search radius.
  3. Flag times with missing data for each grid point.
  4. Linearly interpolate in time hourly for each grid point.
  5. Low-pass-filter using 33 hour cut-off tidal filter.
  6. Re-flag gaps greater than 6 hours.
  7. Fill spatial gaps for out to long-term 75% coverage limits for individual maps with 75% coverage using 2-D Gaussian correlation scales computed each month.
  8. Construct EOF modes and amplitude time series from combined U/V fields for filled-in maps.

 

EOF Results for 1999:

Percent Variance in Modes 1-10

Mode 1 & 2 Spatial Pattern

Amplitude Time Series for Modes 1-2

Amplitude Time Series vs. Along Shore Winds at M1

Amplitude Time Series vs. Cross Shore Winds at M1

Amplitude Time Series vs. M1 Winds Scatter Plots

Velocity Mode Animations for 28-31 January 1999 :

Some of these movies may take a few minutes to load

Mode 1
Mode 2
Mode 1 + 2

HF Radar Velocity and EOF Velocity Mode Animations for 18-26 June 1999 :

Some of these movies may take a few minutes to load

HF Radar Derived Currents
Mode 1
Mode 1 + 2


Last Modified: 29 January 2003
Approved for public release by:
Point of Contact: Jeff Paduan
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