Gridded Altimeter Fields with Enhanced Coastal Coverage

The Gridded Altimeter Fields with Enhanced Coastal Coverage data product contains Sea Surface Height Anomalies (SSHA or SLA) and zonal 
and meridional geostrophic velocities for the US west coast encompassing 35.25 deg-48.5 deg N latitude and 227.75 deg-248.5 deg E longitude.  This annually updated data product extends from October 14, 1992 through November 4, 2009.  SSHA and current velocities are 
derived from the AVISO quarter degree DT UPD MSLA version 3.0 grids, 0.75 deg and greater away from the coast.  Values within 0.75 deg 
of the coast are derived from tide gauge observations and interpolated out to the altimeter filled region.  Details on how these data 
are derived can be found in: 
Saraceno, M., P. T. Strub, and P. M. Kosro (2008), Estimates of sea surface height and near-surface alongshore coastal currents from 
	combinations of altimeters and tide gauges, J. Geophys. Res., 113, C11013, doi:10.1029/2008JC004756.

Differences between the referred article and this product are
1. The data for this product are derived from the AVISO version 3 data.
2. This product uses an inverse weighted interpolation (http://www.mathworks.com/matlabcentral/fileexchange/15590) instead of the 
   Delaunay triangles in Saraceno et al 2008.

This data product was developed by Craig Risien with funding from Oregon State UniversityŐs, NOAA funded, Cooperative Institute for 
Oceanographic Satellite Studies (CIOSS).

Questions and/or comments can be directed to podaac@podaac.jpl.nasa.gov

A full userŐs manual will be made available later this year.




August 2010