Physics – Geophysics
Scientific paper
2004-07-14
GEOPHYSICAL RESEARCH LETTERS, VOL. 31, L13208, 2004
Physics
Geophysics
9 pages, 3 figures
Scientific paper
As a consequence of greenhouse forcing, all state of the art general circulation models predict a positive temperature trend that is greater for the troposphere than the surface. This predicted positive trend increases in value with altitude until it reaches a maximum ratio with respect to the surface of as much as 1.5 to 2.0 at about 200 to 400 hPa. However, the temperature trends from several independent observational data sets show decreasing as well as mostly negative values. This disparity indicates that the three models examined here fail to account for the effects of greenhouse forcings.
Douglass David H.
Pearson Benjamin D.
Singer Siegfried F.
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