~2 minute grid, smoothed version of the USGS 15 second
bathymetric grid (from K. Smith, WHOI)
Objective analysis for 12 months (calculated for the 15th of each month)
nine z-layers (1m-10m-20m-30m-40m-50m-100m-150m-200m)
calculated as z ±5 (0-5, 5-15, 15-25, 25-35, 35-45, 45-55,
95-105, 145-155, 195-205)
Computed based on relative weightings of x, y, z, date,
Temperature, Salinity, and log(bathymetry) to retain some
separation across frontal zones and along the shallower
contours
Gaussian weighting function for all parameters; standard
deviations for each x,y=50km,
z=10m,
date=30 days
Temperature=2.5°C,
Salinity=.5 psu,
Log bathymetry=.5,