SARAL Near-Real-Time Value-added Operational Geophysical Data Record Sea Surface Height Anomaly

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 TypePREVIEW
MeasurementOceans > Ocean Waves > Significant Wave Height > None
Oceans > Sea Surface Topography > Sea Surface Height > None
Processing Level2
CoverageRegion: Global
Northernmost Latitude: 82 degrees
Southernmost Latitude: -82 degrees
Westernmost Longitude: 0 degrees
Easternmost Longitude: 360 degrees
Time Span: 2013-Nov-18 to Present
ResolutionSpatial Resolution: 11 km (Along) x 5 km (Across)
ProjectionType: Swath
Detail:
Ellipsoid:
Latency9 hours
Swath Width11 km
Sample Frequency1
Temporal Repeat (Nominal)35 Day
Temporal Repeat (Min)-
Temporal Repeat (Max)-
Platform/Sensor
SARAL
Platform
Name: Satellite with Argos and AltiKa (SARAL)
Orbit Period: 100.59 minutes
Inclination Angle: 98.55 degrees
Ascending Node: 1970-Jan-01 00:00:00
/
AltiKa
SENSOR
Name: AltiKa (AltiKa)
Swath Width: 11 km
Description: AltiKa

ProjectSatellite with ARgos and ALtiKa (SARAL)
Data ProviderCreator: Shailen Desai
Release Place: JPL
Release Date: 2013-Dec-03
Resource: -
Persistent IDPODAAC-AKASA-XOGD1
Questions related to this dataset? Contact podaac@podaac.jpl.nasa.gov
User's Guide
XOGDR-SSHA user guideftp://podaac.jpl.nasa.gov/allData/saral/preview/L2/XOGDR-SSHA/docs
user's guide
Citation Shailen Desai. 2013. SARAL Near-Real-Time Value-added Operational Geophysical Data Record Sea Surface Height Anomaly. Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at http://dx.doi.org/10.5067/AKASA-XOGD1.

For more information see Data Citations and Acknowledgments.

Journal Reference