What s happening in the bathtub an overview of present day sea level change
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What's Happening in the Bathtub?: An Overview of Present-Day Sea Level Change. R. Steven Nerem University of Colorado Department of Aerospace Engineering Sciences Colorado Center for Astrodynamics Research Cooperative Institute for Research in Environmental Sciences. Satellite Altimetry.

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What's Happening in the Bathtub?: An Overview of Present-Day Sea Level Change

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What s happening in the bathtub an overview of present day sea level change

What's Happening in the Bathtub?: An Overview of Present-Day Sea Level Change

R. Steven Nerem

University of Colorado

Department of Aerospace Engineering Sciences

Colorado Center for Astrodynamics Research

Cooperative Institute for Research in Environmental Sciences


Satellite altimetry

Satellite Altimetry

Trend = 3.4 mm/year

http://sealevel.colorado.edu


Detrended gmsl and mei

Detrended GMSL and MEI


Spatial variations in sea level rise 1993 2009

Spatial Variations in Sea Level Rise 1993-2009


Grace gravity recovery and climate experiment

GRACEGravity Recovery and Climate Experiment


Grace global ocean mass variations

GRACE Global Ocean Mass Variations


Greenland mass change from grace

Greenland Mass Change from GRACE

Total Greenland ice volume

Rate of mass change during April, 2002 – February, 2009

Rate of mass change:

All Greenland: -235 Gton/yr

South Greenland: -169 Gton/yr

North Greenland: -65 Gton/yr

362 Gt/yr = 362 km3/year water

= 1 mm/yr sea level rise

[Wahr, 2009]

-235 Gton/yr = 0.65 mm/yr sea level rise


Greenland mass change from grace1

Greenland Mass Change from GRACE

[Wahr, 2009]


Antarctica mass change from grace

Antarctica Mass Change from GRACE

Total Antarctic ice volume.

April, 2002 – February, 2009

Rate of mass change after removing ICE5G rebound model:

All Antarctica: -169 Gton/yr

West Antarctica: -128 Gton/yr

East Antarctica: -36 Gton/yr

Amundsen Sea glaciers

Uncertainty of post-glacial rebound correction:

All Antarctica: ± 75 km3/yr

West Antarctica: ± 20 km3/yr

East Antarctica: ± 50 km3/yr

-169 Gton/yr = 0.47 mm/yr sea level rise

[Wahr, 2009]


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