Global Mean Sea Level Trend from Integrated Multi-Mission Ocean Altimeters TOPEX/Poseidon, Jason-1, OSTM/Jason-2, Jason-3, and Sentinel-6 Version 5.2

This dataset contains the Global Mean Sea Level (GMSL) trend generated from the Integrated Multi-Mission Ocean Altimeter Data for Climate Research Version 5.2. The GMSL trend is a 1-dimensional time series of globally averaged Sea Surface Height Anomalies (SSHA) from TOPEX/Poseidon, Jason-1, OSTM/Jason-2, Jason-3, and Sentinel-6A that covers September 1992 to present with a lag of up to 4 months. The data are reported as variations relative to a 20-year TOPEX/Jason collinear mean. Bias adjustments and cross-calibrations were applied to ensure SSHA data are consistent across the missions; Glacial Isostatic Adjustment (GIA) was also applied. The data are available as a table in ASCII format. Changes between the version 5.1 and version 5.2 releases are described in detail in the user handbook.

Data and Resources

Additional Info

Field	Value
Maintainer	Earthdata Forum
Last Updated	November 5, 2026, 08:38 (UTC)
Created	April 1, 2025, 16:02 (UTC)
Identifier	10.5067/GMSLM-TJ152
Modified	2026-11-02T22:15:59Z
Theme	{"Earth Science"}
accessLevel	public
bureauCode	{026:00}
catalog_conformsTo	https://project-open-data.cio.gov/v1.1/schema
harvest_object_id	f436814e-b3a8-4885-90d9-12576924c4f5
harvest_source_id	b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title	Science Discovery Engine
license	https://www.usa.gov/government-works
programCode	{026:000}
publisher	NASA/GSFC/SED/ESD;NASA/JPL/PODAAC
resource-type	Dataset
source_datajson_identifier	true
source_hash	245fb49f6920d13d6baf684e73c199d43a39e759afafe83861d6a8a328418b86
source_schema_version	1.1
spatial	["CARTESIAN", [{"WestBoundingCoordinate": -180, "SouthBoundingCoordinate": -66, "EastBoundingCoordinate": 180, "NorthBoundingCoordinate": 66}]]