Please Note: This dataset is retired, and is displayed for archive purposes only, and may not reflect the most updated information.

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Jason-1 GDR version E NetCDF. DOI:

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Jason-1 Altimeter Geophysical Data Record (GDR) NetCDF

DescriptionThe Jason-1 Geophysical Data Records (GDR) contain full accuracy altimeter data, with a high precision orbit (accuracy ~2.5 cm), provided approximately 35 days after data collection. The instruments on Jason-1 make direct observations of the following quantities: altimeter range, significant wave height, ocean radar backscatter cross-section (a measure of wind speed), ionospheric electron content (derived by a simple formula), tropospheric water content, mean sea surface, and position relative to the GPS satellite constellation. The GDR contain all relevant corrections needed to calculate the sea surface height. Sea surface height anomalies calculation and recommended data edit criteria arespecified in the Jason-1 I/GDR User Handbook located in PO.DAAC Drive at This is not the official format from the project and therefore is not validated.
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Citation is critically important for dataset documentation and discovery. Please cite the data as follows, and cite the reference papers when it is appropriate.
Citation JASON-1. 2008. Jason-1 Geophysical Data Record (GDR) NetCDF. Ver. 1. PO.DAAC, CA, USA. Dataset accessed [YYYY-MM-DD] at

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VersionDatasetVersion DateStatus
EJason-1 GDR version E NetCDFPresentCOMPLETE
1Jason-1 Altimeter Geophysical Data Record (GDR) NetCDFPresentRETIRED.