AVISO Merged Altimetry

AVISO Merged Altimetry

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Thanks to updates at NOAA OceanWatch, Voyager now provides daily, weekly, and monthly AVISO merged altimetry, replacing the previously provided Jason-1 product. This dataset merges Jason-1, Jason-2, and TOPEX/Poseidon satellite altimeters for improved measurements of sea surface height and geostrophic surface currents. For near real-time observations, it may also merge other available altimeters, such as CryoSat-2. Due to AVISO’s license constraints, these products are reported as anomalies from the 1992-2002 climatology of Niiler et al. 2003. Monthly and weekly composites are provided for the entire time period 1992 to the present while the daily data are a 30-day rolling archive of the most recently available data.

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PacIOOS is the first regional association that was certified as a Regional Information Coordination Entity (RICE) by the U.S. Integrated Ocean Observing System (IOOS). Certification provides NOAA and its interagency partners a means to verify that a regional association’s organizational and operational practices, including data management, meet recognized and established standards set by NOAA.