NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Impact of Albedo Contrast Between Cirrus and Boundary-Layer Clouds on Climate SensitivityIn assessing the iris effect suggested by Lindzen et al. (2001), Fu et al. (2001) found that the response of high-level clouds to the sea surface temperature had an effect of reducing the climate sensitivity to external radiative forcing, but the effect was not as strong as LCH found. This weaker reduction in climate sensitivity was due to the smaller contrasts in albedos and effective emitting temperatures between cirrus clouds and the neighboring regions. FBH specified the albedos and the outgoing longwave radiation (OLR) in the LCH 3.5-box radiative-convective model by requiring that the model radiation budgets at the top of the atmosphere be consistent with that inferred from the Earth Radiation Budget Experiment (ERBE). In point of fact, the constraint by radiation budgets alone is not sufficient for deriving the correct contrast in radiation properties between cirrus clouds and the neighboring regions, and the approach of FBH to specifying those properties is, we feel inappropriate for assessing the iris effect.
Document ID
20020027885
Document Type
Preprint (Draft being sent to journal)
Authors
Chou, Ming-Dah (NASA Goddard Space Flight Center Greenbelt, MD United States)
Lindzen, R. S. (Massachusetts Inst. of Tech. United States)
Hou, A. Y. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Lau, William K. M.
Date Acquired
September 7, 2013
Publication Date
January 1, 2001
Subject Category
Meteorology and Climatology
Funding Number(s)
CONTRACT_GRANT: DE-FG02-01ER-63257
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

NameType 20020027885.pdf STI