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NASA Global Climate Change

Climate change information from NASA.

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NASA Global Climate Change

Other GMSL Estimates

AVISO
CSIRO
NASA GSFC
NOAA

FAQs

What is the definition of global mean sea level (GMSL) and its rate?
Why is the GMSL different than local tide gauge measurements?
What is glacial isostatic adjustment (GIA), and why do you correct for it?
How often are the global mean sea level estimates updated?
What is the format of the dates in the GMSL time series?
Do you account for plate tectonics in the global mean sea level trend?
Is sedimentation in the oceans accounted for in the GMSL estimate?
What determines the x-intercept (i.e., "zero-crossing" or "base year") of the GMSL plots?

Recent Publications

Consolidating Sea Level Acceleration Estimates from Satellite Altimetry
T. Veng, O. Andersen
Advances in Space Research: The Official Journal of the Committee on Space Research
Continuity of ice sheet mass loss in Greenland and Antarctica from the GRACE and GRACE Follow-On missions
I. Velicogna, Y. Mohajerani, A. Geruo, F. Landerer, J. Mouginot, B. Noel, E. Rignot, T. Sutterly, M. van den Broeke
Geophysical Research Letters
Are long tide gauge records in the wrong place to measure global mean sea level rise?
P. Thompson, B. Hamlington, F. Landerer, S. Adhikari
Geophysical Research Letters

Related Links

CLS Radar Altimetry Tutorial

CU Sea Level Explorer

JPL GRACE Tellus

NASA EO: World of Change

NASA Global Climate Change

NASA Sea Level Portal

NOAA Satellite Altimetry

Radar Altimeter Database (RADS)

USF Grace Ocean Mass

For questions or comments, please contact Professor R. Steven Nerem at nerem@colorado.edu.

We would like to thank NOAA and TU Delft for providing the Radar Altimetry Database System (RADS). For more information on RADS, visit this link.

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