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A multi-data comparison of shortwave climate forcing changes

Traditionally the Earth's reflectance has been assumed to be roughly constant, but large decadal variability, not reproduced by current climate models, has been reported lately from a variety of sources. We compare here the available data sets related to Earth's reflectance, in order to as...

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Published in:Geophysical research letters 2005-11, Vol.32 (21), p.L21702.1-n/a
Main Authors: Pallé, E., Montañés-Rodriguez, P., Goode, P. R., Koonin, S. E., Wild, M., Casadio, S.
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container_issue 21
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container_title Geophysical research letters
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creator Pallé, E.
Montañés-Rodriguez, P.
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Koonin, S. E.
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description Traditionally the Earth's reflectance has been assumed to be roughly constant, but large decadal variability, not reproduced by current climate models, has been reported lately from a variety of sources. We compare here the available data sets related to Earth's reflectance, in order to assess the observational constraints on the models. We find a consistent picture among all data sets of an albedo decreased during 1985–2000 between 2–3 and 6–7 W/m2, which is highly climatically significant. The largest discrepancy among the data sets occurs during 2000–2004, when some present an increasing reflectance trend, while CERES observations show a steady decrease of about 2 W/m2.
doi_str_mv 10.1029/2005GL023847
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subjects Earth sciences
Earth, ocean, space
Exact sciences and technology
title A multi-data comparison of shortwave climate forcing changes
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