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Sea Level Change in AR5
Roderik van de Wal, Utrecht University
Review editor chapter 13 WGI

10/19/2013

2
What drivesMaster title style
sea level changes?
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10/19/2013

Figure 13.1 AR5

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Antarctica+Greenland
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Greenland
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10/19/2013
Shepherd et al 2012

Antarctica more constrained, Greenland decay rate faster

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Cryospheric contribution
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Extended version of Fig 4.17 AR5

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Future Master title style
projections
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+40-50%

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Figure 7b, SPM

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AR5 versus AR4 style
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10/19/2013

So for +4K 1/3 caused by increased response;
2/3 by higher offset! (commitment) ice sheets..

7
Concluding remarksstyle
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-Sea level recent passed reasonably explained

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Unknowns
-coastal processes
-temporal variability
-low probability issues
10/19/2013

8

Delft2013rw

  • 1.
    Click to editMaster title style • ____ __ ____ Master____ styles Click to edit Master_____ text ______ Click to edit text styles _____ _____ – Second level ____ _____ • Third level _____ _____ ____ _____ – Fourth level » Fifth level Second level Third level Fourth level Fifth level Sea Level Change in AR5 Roderik van de Wal, Utrecht University Review editor chapter 13 WGI 10/19/2013 2
  • 2.
    What drivesMaster titlestyle sea level changes? Click to edit • ____ __ ____ Master____ styles Click to edit Master_____ text ______ Click to edit text styles _____ _____ – Second level ____ _____ • Third level _____ _____ ____ _____ – Fourth level Second level Third level Fourth level Fifth level » Fifth level 10/19/2013 Figure 13.1 AR5 3
  • 3.
    Antarctica+Greenland Click to editMaster title style • ____ __ ____ Master____ styles Click to edit Master_____ text ______ Click to edit text styles Antarctica Greenland _____ _____ Second level – Second level ____ _____ Third level • Third level _____ _____ Fourth level ____ _____ – Fourth level Fifth level » Fifth level 10/19/2013 Shepherd et al 2012 Antarctica more constrained, Greenland decay rate faster 4
  • 4.
    Cryospheric contribution Click toedit Master title style • ____ __ ____ Master____ styles Click to edit Master_____ text ______ Click to edit text styles _____ _____ – Second level ____ _____ • Third level _____ _____ ____ _____ – Fourth level Second level Third level Fourth level Fifth level » Fifth level 10/19/2013 Extended version of Fig 4.17 AR5 5
  • 5.
    Future Master titlestyle projections Click to edit • ____ __ ____ Master____ styles Click to edit Master_____ text ______ Click to edit text styles _____ _____ – Second level ____ _____ • Third level _____ _____ ____ _____ – Fourth level Second level Third level Fourth level Fifth level +40-50% » Fifth level 10/19/2013 Figure 7b, SPM 6
  • 6.
    AR5 versus AR4style Click to edit Master title • ____ __ ____ Master____ styles Click to edit Master_____ text ______ Click to edit text styles _____ _____ – Second level ____ _____ • Third level _____ _____ ____ _____ – Fourth level Second level Third level Fourth level Fifth level » Fifth level 10/19/2013 So for +4K 1/3 caused by increased response; 2/3 by higher offset! (commitment) ice sheets.. 7
  • 7.
    Concluding remarksstyle Click toedit Master title -Sea level recent passed reasonably explained • ____ __ ____ per degree increased styles Click tolevel response Master____ ______ Clickedit Master_____ text to edit text styles -Sea _____ _____ – Second level ____ _____ -Sea level regional • Third level _____ _____ ____ _____ – Fourth level Second level Third level variable Fourth level Fifth level -Sea level projections higher » Fifth level Unknowns -coastal processes -temporal variability -low probability issues 10/19/2013 8