Types of dataset: Monomission altimeter product.

Contents: along-track Sea Surface Height with respect to a Mean Sea Surface height above reference ellipsoid (CLS01 MSS) and averaged over 1 second. All instrumental, geophysical and environmental corrections are included for near-real and delayed-time products.

Use: from operational oceanography and marine meteorology (real time products) to the study of ocean variability.

Description: mono altimeter satellite products available in near-real time and in delayed time. SSHA from OSTM / Jason-2 are divided into three families, distinguished by increasing latency and accuracy, going from the near-real time data (OGDR-SSHA) to the delayed-time data (IGDR-SSHA, GDR-SSHA).
Geographic coverage: global

Format: NetCDF. All three products have the same format.

Tools:

• OSTM / Jason-2 Products Handbook
• Data reading software

Description: The OGDR-SSHA is a near-real time operational product. The OGDR is the faster product delivered to the users. They are processed by the operational agencies partners, Noaa and Eumetsat. Note that this is a non-validated product that uses orbits computed by the on-board Doris Navigator (DIODE) and that it does not contain all the environmental/geophysical corrections. The file structure are not with pole to pole passes but with variable segments.

Copyright : 2008- ongoing Eumetsat - Noaa

Description: The IGDR-SSHA is a delayed time dataset produced within 2 calendar days. They are produced solely by Cnes and are available to users from Aviso and Noaa. These data are not fully validated (elementary and automatic controls only) and are derived from Doris data with the processing of a preliminary orbit. The environmental and geophysical corrections (preliminary for some of them) are included. The file structure is pole to pole passes.

Copyright: 2008- ongoing Cnes

Description: The GDR-SSHA is a delayed-time dataset produced within 60 days. They are produced solely by Cnes and are available to users from Aviso and Noaa. These data are fully validated and are derived from Doris, GPS and laser data Precise Orbit Determination. All the environmental and geophysical precise corrections are included. The file structure is pole to pole passes.

Copyright: 2008-ongoing Cnes