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An Antarctic assessment of IPCC AR4 coupled models

By William M. Connolley and Thomas J. Bracegirdle

Abstract

We assess 19 coupled models from the IPCC fourth assessment report archive from the simulation of the 20th century, based on the calculation of " skill scores.'' The models show a wide range of scores when assessed against Antarctic or global measures of large- scale circulation indices. Except for continental mass balance, the model average proves a more reliable estimate than that for any one model. Individual models show a very wide scatter in simulated Antarctic temperature trends over the past century; the large trend over the Antarctic peninsula in winter is not well represented, which makes it clear that whatever has been driving these trends is not well captured by many GCMs. Trends in temperature are clearly linked to the sea ice simulation, another variable that most models do not simulate well

Topics: Meteorology and Climatology, Glaciology, Atmospheric Sciences
Publisher: American Geophysical Union
Year: 2007
DOI identifier: 10.1029/2007GL031648
OAI identifier: oai:nora.nerc.ac.uk:11712

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Citations

  1. (2001). A comparison of five numerical weather prediction analysis climatologies in southern high latitudes,
  2. (2007). A synthesis of Antarctic temperatures,
  3. (2005). Antarctic climate change during the last 50 years, doi
  4. (2007). Antarctic climate change over the 21st century,
  5. (2002). Antarctic climate cooling and terrestrial ecosystem response,
  6. (2001). CMIP1 evaluation and intercomparison of coupled climate models,
  7. Cullather (2007), Changes in Antarctic net precipitation in the 21st century based on Intergovernmental Panel on Climate Change (IPCC) model scenarios, doi
  8. (2006). Evaluation of the simulation of the annual cycle of Arctic and Antarctic sea ice coverages by 11 major global climate models, doi
  9. (2003). Global analyses of sea surface temperature, sea ice, and night marine air temperature since the late nineteenth century, doi
  10. (2002). Interpretation of recent Southern Hemisphere climate change, doi
  11. (2005). Model projections of the North Atlantic thermohaline circulation for the 21st century assessed by observations,Geophys. doi
  12. (2004). Quantification of modelling uncertainties in a large ensemble of climate change simulations,
  13. (1999). Reassessment of net surface mass balance in Antarctica, doi
  14. (1994). Recent climate variability in the vicinity of the Antarctic Peninsula,
  15. (2004). Strong trends in the skill of the ERA-40 and NCEP-NCAR reanalyses in the high and midlatitudes of the Southern Hemisphere, 1958–2001,
  16. (2005). The ERA-40 reanalysis,
  17. (2005). The rationale behind the success of multi-model ensembles in seasonal forecasting: I. Basic concept,
  18. (2006). Twentieth century simulation of the Southern Hemisphere climate in coupled models. Part II: Sea ice conditions and variability,

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