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www.clim-past-discuss.net/7/1235/2011/
doi:10.5194/cpd-7-1235-2011
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Weakened atmospheric energy transport feedback in cold glacial climates
Centre for Ice and Climate, Niels Bohr Institute, University of Copenhagen, Juliane Maries Vej 30, 2100 Copenhagen, Denmark
Abstract. The response of atmospheric energy transport during Northern Hemisphere cooling and warming from present day (PD) and Last Glacial Maximum (LGM) conditions is investigated using sea surface temperature anomalies derived from a freshwater hosing experiment. The present day climate shows enhanced sensitivity of the atmospheric energy transport compared to that of the LGM suggesting an ability of the PD atmosphere to reorganize more easily and thereby dampen temperature anomalies that may arise from changes in the oceanic transport. The increased PD sensitivity relative to that of the LGM is due mainly to a stronger dry static energy transport response which, in turn, is driven chiefly by larger changes in the transient eddy heat flux. In comparison, changes in latent heat transport play a minor role in the overall transport sensitivity.
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Notice on Discussion StatusCitation: Cvijanovic, I., Langen, P. L., and Kaas, E.: Weakened atmospheric energy transport feedback in cold glacial climates, Clim. Past Discuss., 7, 1235-1259, doi:10.5194/cpd-7-1235-2011, 2011. Bibtex EndNote Reference Manager XML
