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Description

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.

Product Summary

Platforms
OSTM/JASON-2 ,
JASON-1 ,
TOPEX/POSEIDON ,
JASON-3
Instruments
AMR ,
POSEIDON-3 ,
JASON-1 Microwave Radiometer ,
POSEIDON-2 ,
ALT (TOPEX) ,
TMR ,
SSALT ,
POSEIDON-3B
Spatial Extent

N: 66 S: -66 E: 180 W: -180

Spatial Resolution
360 Decimal Degrees x 132 Decimal Degrees
Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
CARTESIAN
Temporal Extent
1992-09-01
Data Partner
Physical Oceanography Distributed Active Archive Center, Jet Propulsion Laboratory, NASA (NASA/JPL/PODAAC)
Concept ID
C2902359309-POCLOUD
Data State
ACTIVE
Number of Files/Granules
1
Processing Level
4
Published
Science Keywords
Sea Surface Height

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

NASA-SSH. (2024). 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 [Data set]. NASA Physical Oceanography Distributed Active Archive Center. https://doi.org/10.5067/GMSLM-TJ152 Date Accessed: 2026-05-31

Documents

USER'S GUIDE

DATA CITATION GUIDELINES

PUBLICATIONS

GENERAL DOCUMENTATION

Publications Citing This Dataset

Filters
Title Year Author Topic
A Machine Learning approach for Total Water storage anomaly eXtension back to 1980 (ML-TWiX) Saemian, Peyman, Tourian, Mohammad J., Douch, Karim, Foster, James, Gou, Junyang, Wiese, David, AghaKouchak, Amir, Sneeuw, Nico Sea Surface Height, Precipitation, Precipitation Amount, Precipitation Rate, Snow, Rain
Compound Minor Flooding and Relative Sea Level Rise in the Lower Winyah Bay Watershed, South Carolina, USA Fink, Madison S., Baranes, H.E., Dykstra, S. L., Talke, S. A., Hanebuth, T. J.J. Sea Surface Height
Evaluating Model-Simulated Monthly Sea Levels During 19932023 in the Northwest Atlantic: Influence of Model Resolution and Data Assimilation Zhai, Li, Lu, Youyu, Hu, Xianmin, Dupont, Frederic Sea Surface Height
Near-Term Future Sea-Level Projections Supported by Extrapolation of Wang, Jinping, Zhang, Xuebin, Church, John A., King, Matt, Chen, Xianyao Sea Surface Height
Global oceans Johnson, G. C., Lumpkin, R., Beckley, Brian, Bellas-Manley, Ashley, Carter, Brendan R., Cetinic, Ivona, Chambers, Don P., Chan, Duo, Cheng, Lijing, Dong, Shenfu, Feely, Richard A., Franz, Bryan A., Gao, Meng, Garg, Jay, Giglio, Donata, Graham, Garrett, Hamlington, Benjamin D., Hobbs, Will, Hu, Zeng-Zhen, Huang, Boyin, Jersild, Annika, Jevrejeva, Svetlana, Johns, William E., Killick, Rachel. E., Kuusela, Mikael, Lamont, Tarron, Landerer, F. W., Landschutzer, Peter, Le Henaff, Matthieu, Leuliette, Eric, Locarnini, Ricardo, Lyman, John M., Merrifield, Mark A., Mishonov, Alexey, Mitchum, Gary T., Moat, Ben I., Nerem, R. Steven, Oe, Mitsuho, Perez, Renellys C., Reagan, James, Schlegal, Robert W., Schmid, Claudia, Smeed, David A., Smith, Ryan H., Speich, Sabrina, Stackhouse, Paul W., Sukianto, Thea, Sweet, William, Thompson, Philip R., Trinanes, Joaquin A., Tuchen, Franz Philip, Volkov, Denis L., Wanninkhof, Rik, Weller, Robert A., Westberry, Toby K., Widlansky, Matthew J., Willis, Joshua K., Yin, Xungang, Yu, Lisan, Zhang, Huai-Min Sea Surface Height
Barystatic sea level change observed by satellite gravimetry: 19932022 Nie, Yufeng, Chen, Jianli, Xu, Guodong, Locher, Anno Gravity, Sea Surface Height
Sea level reconstruction reveals improved separations of regional climate and trend patterns over the last seven decades Wang, Shengdao, Shum, C. K., Bevis, Michael, He, Xiaoxing, Zhang, Yu, Ding, Yihang, Zhang, Chaoyang, Montillet, Jean-Philippe Sea Surface Height
Quantifying the drivers of sea level changes along Singapore's coastline: the role of tides, non-tidal residuals, and wave dynamics Samsami, Farzin, Wang, Peng Cheng, Ang, Elisa Y.M., Tay, Zhi Yung Sea Surface Height
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