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GEOPHYSICAL RESEARCH LETTERS,
VOL. 34,
L22710,
doi:10.1029/2007GL031383,
2007
Twentieth century climate model response and climate sensitivity
Jeffrey T. Kiehl
Climate Change Research Section, National Center for Atmospheric Research, Boulder, Colorado, USA
Abstract
Climate forcing and climate sensitivity are two key factors in understanding Earth's climate. There is considerable interest
in decreasing our uncertainty in climate sensitivity. This study explores the role of these two factors in climate simulations
of the 20th century. It is found that the total anthropogenic forcing for a wide range of climate models differs by a factor
of two and that the total forcing is inversely correlated to climate sensitivity. Much of the uncertainty in total anthropogenic
forcing derives from a threefold range of uncertainty in the aerosol forcing used in the simulations.
Received 19
July
2007;
accepted 13
September
2007;
published 28
November
2007.
Keywords: climate model;
climate forcing;
climate sensitivity.
Index Terms: 1626 Global Change: Global climate models (3337, 4928); 3337 Atmospheric Processes: Global climate models (1626, 4928); 0305 Atmospheric Composition and Structure: Aerosols and particles (0345, 4801, 4906).
Read Full Article (file size: 129605 bytes) Cited by
Citation: Kiehl, J. T.
(2007),
Twentieth century climate model response and climate sensitivity,
Geophys. Res. Lett.,
34,
L22710,
doi:10.1029/2007GL031383.
Copyright 2007 by the American Geophysical Union.
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