Gridded Altimeter Fields with Enhanced Coastal Coverage

Gridded Altimeter Fields with Enhanced Coastal Coverage
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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 TypePREVIEW
MeasurementOceans > Sea Surface Topography > Sea Surface Height
Oceans > Ocean Circulation > Ocean Currents
Processing Level4
CoverageRegion: Eastern Pacific Ocean
Northernmost Latitude: 48.5 degrees
Southernmost Latitude: 35.25 degrees
Westernmost Longitude: 248.5 degrees
Easternmost Longitude: 227.75 degrees
Time Span: 1992-Oct-14 to 2012-Apr-18
ResolutionSpatial Resolution: 0.25 degrees (Latitude) x 0.25 degrees (Longitude)
Temporal Resolution: 7 Day
ProjectionType: Gridded
Detail: N/A
Ellipsoid: unknown
Latency hours
Platform/Sensor
JASON-1
Platform
Name: JASON-1 (JASON-1)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
POSEIDON-2
SENSOR
Name: JASON-1 RADAR ALTIMETER (POSEIDON-2)
Swath Width: - km
Description: The Poseidon-2 altimeter, operating at 13.575 GHz (Ku band) and 5.3 GHz (C band), is the primary sensor for the JASON-1 mission. The measurements made at the two frequencies are combined to obtain measurements of the altimeter range, wind speed, significant wave height, and the ionospheric correction. The Poseidon-2 package consists of dual redundant altimeter units each of which has low mass and low power consumption.

TOPEX/POSEIDON
Platform
Name: Topography Experiment/Poseidon (TOPEX/POSEIDON)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
SSALT
SENSOR
Name: POSEIDON Solid State Radar Altimeter (SSALT)
Swath Width: 5 km
Description: A satellite altimeter consists of a transmitter that sends out very sharp pulses, a sensitive receiver to record the pulse after it is reflected from the sea surface, and an accurate clock to note the time interval between transmission and reception. Examples of satellite altimeters used in the remote sensing of ocean surface height, wave height and wind speed are Seasat, Geosat and Topex/Poseidon.

OSTM/JASON-2
Platform
Name: Ocean Surface Topography Mission/Jason-2 (OSTM/JASON-2)
Orbit Period: 112.43 minutes
Inclination Angle: 66.04 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
POSEIDON-3
SENSOR
Name: OSTM/Jason-2 RADAR alitmieter (POSEIDON-3)
Swath Width: 5.1 km
Description: The Poseidon-3 altimeter, operating at 13.575 GHz (Ku band) and 5.3 GHz (C band), is the primary sensor for the OSTM mission. The measurements made at the two frequencies are combined to obtain measurements of the altimeter range, wind speed, significant wave height, and the ionoshperic correction. The Poseidon-3 package consists of dual redundant altimeter units each of which has low mass and low power consumption.

ProjectCooperative Institute for Oceanographic Satellite Studies (CIOSS)
Data ProviderCreator: OSU/COAS
Release Place: JPL
Release Date: 2010-Sep-26
Resource: N/A
Persistent IDPODAAC-USWCO-ALT01
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Citation OSU/COAS. 2010. Gridded Altimeter Fields with Enhanced Coastal Coverage. Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/USWCO-ALT01.

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For more information see Data Citations and Acknowledgments.

Journal Reference 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