SARAL Near-Real-Time Value-added Operational Geophysical Data Record Sea Surface Height Anomaly
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DOI10.5067/AKASA-XOGD1
Short NameALTIKA_SARAL_L2_OST_XOGDR
DescriptionThese data are near-real-time (NRT) (within 7-9 hours of measurement) sea surface height anomalies (SSHA) from the AltiKa altimeter onboard the Satellite with ARgos and ALtiKa (SARAL). SARAL is a French(CNES)/Indian(SARAL) collaborative mission to measure sea surface height using the Ka-band AltiKa altimeter and was launched February 25, 2013. The major difference between these data and the Operational Geophysical Data Record (OGDR) data produced by the project is that the orbit from SARAL has been adjusted using SSHA differences with those from the OSTM/Jason-2 GPS-OGDR-SSHA product at inter-satellite crossover locations. This produces a more accurate NRT orbit altitude for SARAL with accuracy of 1.5 cm (RMS), taking advantage of the 1 cm (radial RMS) accuracy of the GPS-based orbit used for the OSTM/Jason-2 GPS-OGDR-SSHA product. This dataset also contains all data from the project (reduced) OGDR, and improved altimeter wind speeds and sea state bias correction. More information on the SARAL mission can be found at: http://www.aviso.oceanobs.com/en/missions/current-missions/saral.html
Version1
Dataset TypeACTIVE
MeasurementOCEANS > SEA SURFACE TOPOGRAPHY > SEA SURFACE HEIGHT
OCEANS > OCEAN WAVES > SIGNIFICANT WAVE HEIGHT
Processing Level2
CoverageRegion: GLOBAL
North Bounding Coordinate: 82 degrees
South Bounding Coordinate: -82 degrees
West Bounding Coordinate: -180 degrees
East Bounding Coordinate: 180 degrees
Time Span: 2013-Nov-18 to Present
Granule Time Span: 2013-Nov-18 to 2021-Aug-03
ResolutionSpatial Resolution:
Swath Width11 km
Platform/Sensor
SARAL
Platform
Name: Satellite with Argos and AltiKa (SARAL)
Orbit Period: 100.59 minutes
Inclination Angle: 98.55 degrees
/
ALTIKA Altimeter
SENSOR
Name: AltiKa (ALTIKA Altimeter)
Swath Width: 11.0 kilometers
Description: Spacecraft angular distance from orbital plane relative to the Equator.

ProjectSatellite with ARgos and ALtiKa (SARAL)
Data ProviderPublisher: JPL
Creator: Shailen Desai
Release Place: JPL
Release Date: 2013-Dec-03

Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
Citation Shailen Desai. 2013. ALTIKA_SARAL_L2_OST_XOGDR. Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at https://doi.org/10.5067/AKASA-XOGD1

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