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Climatic Change

, Volume 127, Issue 2, pp 335–351 | Cite as

Emission metrics and sea level rise

  • Erik SternerEmail author
  • Daniel J. A. Johansson
  • Christian Azar
Article

Abstract

Here we present two new metrics used for comparing climate impacts of emissions of different climate forcers: the Global Sea level rise Potential (GSP) and the Integrated Global Sea level rise Potential (IGSP). The GSP represents the Sea Level Rise (SLR) at a given time horizon due to an emission pulse of a forcer; the IGSP is similar but represents the time integrated SLR up to a given point in time. The GSP and IGSP are presented relative to the SLR caused by a comparable emission pulse of carbon dioxide. The metrics are assessed using an Upwelling-Diffusion Energy Balance Model (UDEBM). We focus primarily on the thermosteric part of SLR, denoted GSPth. All of the examined climate forcers – even black carbon, a very Short-Lived Climate Forcer (SLCF) – have considerable influence on the thermosteric SLR on the century time scale. For a given time horizon and forcer, GSPth lies in between the corresponding metric values obtained using Global Warming Potential (GWP) and Global Temperature change Potential (GTP), whereas IGSPth ends up in the opposite end to GTP in the spectrum of compared metrics. GSPth and IGSPth are more sensitive for SLCFs than for the long-lived Greenhouse Gases (GHGs) to changes in the parameterization of the model (under the time horizons considered here).

We also use a Semi-Empirical (SE) model to estimate the full SLR, and corresponding GSPSE and IGSPSE, as alternatives to the thermosteric approach. For SLCFs, GSPSE is greater than GSPth for all time horizons considered, while the opposite holds for long-lived GHGs such as SF6.

Keywords

Black Carbon Global Warming Potential Emission Pulse Adjustment Time Climate Forcer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

We thank Paulina Essunger and two anonymous reviewers for valuable comments. Funding from the Swedish Energy Agency and Carl Bennet AB is gratefully acknowledged.

Supplementary material

10584_2014_1258_MOESM1_ESM.docx (400 kb)
ESM 1 (DOCX 400 kb)

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Copyright information

© Springer Science+Business Media Dordrecht 2014

Authors and Affiliations

  • Erik Sterner
    • 1
    Email author
  • Daniel J. A. Johansson
    • 1
  • Christian Azar
    • 1
  1. 1.Physical Resource TheoryChalmers University of TechnologyGothenburgSweden

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