SWOT Level 2 Nadir Altimeter Operational Geophysical Data Record with Waveforms - GDR, Version 2.0

Published by NASA/JPL/PODAAC | National Aeronautics and Space Administration | Metadata Last Checked: October 22, 2025 | Last Modified: 2025-03-31

Same as L2_NALT_GDR using predicted values for some auxiliary data, and does not have GIM ionosphere model values. Uses the onboard DORIS orbit ephemeris. Available with latency of < 7 hours. Discrete measurements at nadir for each data downlink, along the ground track. Available in netCDF-4 file format.

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Complete Metadata

bureauCode	[ "026:00" ]
identifier	C2799465542-POCLOUD
issued	2022-06-28
landingPage	https://doi.org/10.5067/SWOT-NALT-OGDR-1.0
language	[ "en-US" ]
programCode	[ "026:001" ]
spatial	-180.0 -77.6 180.0 77.6
temporal	2022-12-16T00:00:00Z/2023-11-27T00:00:00Z
theme	[ "SWOT", "geospatial" ]