PO.DAAC is pleased to announce the new dataset, SARAL Near-Real-Time Value-added Operational Geophysical Data Record Sea Surface Height Anomaly.  This value-added dataset is intended to provide improved accuracy near-real-time (NRT) sea surface height anomaly (SSHA) measurements for the SARAL/AltiKa mission.  The data are available 7-9 hours after measurement.  It is based on the official OGDR-SSHA, but takes advantage of several improvements, most notably for the orbit altitude, but also for the sea-state bias and wind speed. The improved orbit is based upon near-real-time inter-satellite SSHA crossover differences with OSTM/Jason-2. This produces a more accurate orbit altitude of 1.5 cm (RMS) for SARAL, by taking advantage of a near-real-time GPS-based orbit for OSTM/Jason-2. These data are available with level 2 processing (swath).

The dataset information page contains additional information on the dataset, including links to the data, documentation and read software:
http://podaac.jpl.nasa.gov/dataset/ALTIKA_SARAL_L2_OST_XOGDR 

ftp location of the data:
ftp://podaac.jpl.nasa.gov/allData/saral/preview/L2/XOGDR-SSHA/

OPeNDAP location of the data:
http://podaac-opendap.jpl.nasa.gov/opendap/allData/saral/preview/L2/XOGDR-SSHA/