CU Sea Level Research Group

University of Colorado
  • Global Mean Sea Level
  • Regional Sea Level
  • Trend Map
  • Interactive Wizard
  • Processing
  • Tide Gauge Sea Level
  • Steric Effects
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  • Global Mean Sea Level
  • Regional Sea Level
  • Trend Map
  • Interactive Wizard
  • Processing
    • Monitoring Altimeter Drift
    • Release Notes
  • Tide Gauge Sea Level
  • Steric Effects
  • References
  • FAQ
  • Links
  • Contact

GMSL Rates

CU: 3.2 ± 0.4 mm/yr
AVISO: 3.2 ± 0.6 mm/yr
CSIRO: 3.2 ± 0.4 mm/yr
NOAA: 3.2 ± 0.4 mm/yr (w/ GIA)
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Frequent Questions

  • 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?
  • Why is the GMSL different than local tide gauge measurements?
All FAQs

Sea Level Links

  • AVISO
  • CLS Radar Altimetry Tutorial
  • CSIRO
  • GFZ GRACE
  • Global Sea Level Observing System (GLOSS)
  • JPL GRACE Tellus
  • JPL Ocean Surface Topography
  • LEGOS-CTOH
  • NASA EO: World of Change
  • NASA Global Climate Change
  • NOAA Satellite Altimetry
  • Permanent Service for Mean Sea Level (PSMSL)
  • Radar Altimeter Database (RADS)
  • USF Grace Ocean Mass
  • UT/CSR GRACE

CU Sea Level Library

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Sort by: Author Keyword Title Type [ Year (Desc)]
Filters: Author is Niiler, P. P.  [Clear All Filters]
2009
Maximenko, N., P. P. Niiler, M. Rio, O. Melnichenko, L. Centurioni, D. Chambers, V. Zlotnicki, and B. Galperin. "Mean Dynamic Topography of the Ocean Derived from Satellite and Drifting Buoy Data Using Three Different Techniques." Journal of Atmospheric and Oceanic Technology 26 (2009): 1910. Abstract
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1998
McPhaden, M. J., A. J. Busalacchi, R. Cheney, J. Donguy, K. Gage, D. Halpern, M. Ji, P. Julian, G. Meyers, G. T. Mitchum et al. "The Tropical Ocean-Global Atmosphere observing system: A decade of progress." Journal of Geophysical Research 103 (1998): 14169-14240. Abstract
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CU Sea Level Blog

  • New GMSL release and Jason-2 Switch to Side-B
  • Senate Committee Hearing on Impacts of Rising Sea Levels on Domestic Infrastructures
  • NASA mission takes stock of Earth's melting land ice
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Our Publications

  • The 2011 La Niña: So strong, the oceans fell
  • Is there a 60-year oscillation in global mean sea level?
  • Comparison of Global Mean Sea Level Time Series from TOPEX/Poseidon, Jason-1, and Jason-2
  • Reconstructing sea level using cyclostationary empirical orthogonal functions
more

Recent Sea Level Articles

  • Time-variable gravity observations of ice sheet mass balance: precision and limitations of the GRACE satellite data
  • Mixed layer heat budget of the El Niño in NCEP climate forecast system
  • Comparison of the X-TRACK altimetry estimated currents with moored ADCP and HF radar observations on the West Florida Shelf
  • A demonstration of the potential of Cryosat-2 to contribute to mesoscale observation
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Climate Science News

  • April on average
  • Spring has sprung in the Arctic
  • Annual maximum extent reached
  • A fractured winter
  • Salty news from the Gulf Stream
more
We would like to thank JPL and G. Kruizinga for providing the altimetry database software. This work was funded by the NASA under a OSTM/Jason science investigation.

Colorado Center for Astrodynamics Research at the University of Colorado at Boulder