Jason-1 GDR version E NetCDF Geodetic

The Jason-1 Geophysical Data Records (GDR) Geodetic Mission contain full accuracy altimeter data, with a high precision orbit, provided approximately 35 days after data collection. The data are sorted into cycles that are approximately 11 days long and contain 280 pass files. 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.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated September 22, 2026, 22:56 (UTC)
Created June 12, 2025, 22:27 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 9bc6e9b5-a470-4bf3-8874-fe59d6822059
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.5067/J1GPN-NCG0E
license https://www.usa.gov/government-works
modified 2026-09-14T22:16:04Z
programCode {026:000}
publisher NASA/JPL/PODAAC;NASA/JPL/TPJOT
resource-type Dataset
source_datajson_identifier true
source_hash 88ef49c4b6446fd1ee346b029e3c9433ba71c677f6cc3296923a5c94755c5a06
source_schema_version 1.1
spatial ["CARTESIAN", [{"EastBoundingCoordinate": 180, "NorthBoundingCoordinate": 66.15, "SouthBoundingCoordinate": -66.15, "WestBoundingCoordinate": -180}]]
temporal 2012-05-07/2013-06-21
theme {"Earth Science"}