Gridded Altimeter Fields with Enhanced Coastal Coverage
DOI10.5067/USWCO-ALT01
Short NameALT_TIDE_GAUGE_L4_OST_SLA_US_WEST_COAST
DescriptionThe 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.
Version1
Dataset TypeCOMPLETE
MeasurementSEA SURFACE HEIGHT > SEA SURFACE TOPOGRAPHY > OCEANS
OCEAN CURRENTS > OCEAN CIRCULATION > OCEANS
Processing Level4
CoverageNorth Bounding Coordinate: 48.5 degrees
South Bounding Coordinate: 35.25 degrees
West Bounding Coordinate: -111.5 degrees
East Bounding Coordinate: 180 degrees
Time Span: 1992-Oct-14 to 2012-Apr-18
Granule Time Span: 1992-Oct-14 to 2012-Apr-18
ResolutionSpatial Resolution: 0.25 degrees (Latitude) x 0.25 degrees (Longitude)
Temporal Resolution: 7 Day
Platform/Sensor
OSTM/JASON-2
Platform
Name: Ocean Surface Topography Mission/Jason-2 (OSTM/JASON-2)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
/
POSEIDON-3
SENSOR
Name: OSTM/Jason-2 RADAR alitmieter (POSEIDON-3)
Swath Width: 5.1 meters
Description: Spacecraft angular distance from orbital plane relative to the Equator.

TOPEX/POSEIDON
Platform
Name: Topography Experiment/Poseidon (TOPEX/POSEIDON)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
/
SSALT
SENSOR
Name: POSEIDON Solid State Radar Altimeter (SSALT)
Swath Width: 5.0 meters
Description: Spacecraft angular distance from orbital plane relative to the Equator.

JASON-1
Platform
Name: JASON-1 (JASON-1)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
/
POSEIDON-2
SENSOR
Name: JASON-1 RADAR ALTIMETER (POSEIDON-2)

ProjectCooperative Institute for Oceanographic Satellite Studies (CIOSS)
Data ProviderPublisher: OSU/COAS
Creator: OSU/COAS
Release Place: JPL
Release Date: 2010-Sep-26
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Citation OSU/COAS. 2010. ALT_TIDE_GAUGE_L4_OST_SLA_US_WEST_COAST. Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/USWCO-ALT01

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