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Contribution to polar albedo from a mesospheric aerosol layerAn examination is made of the impact of a layer of particulate matter, assumed to be ice crystals, on the albedo of the polar region. The model is time dependent, includes the growth of the layer, and incorporates the diffuse nature of radiation reflected from the surface and atmosphere. Although the magnitude of the effect is about an order of magnitude less than previous results, the impact is one of heating instead of cooling. It is also shown that ignoring the diffuse nature of the radiation reflected from the underlying earth-atmosphere system, as has been done in many previous simple models, can result in overestimation of the climatological impact of aerosols in sign and magnitude by a factor of up to 4-6.
Document ID
19770051683
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hummel, J. R.
(Michigan, University Ann Arbor, Mich., United States)
Date Acquired
August 9, 2013
Publication Date
May 1, 1977
Publication Information
Publication: Journal of Geophysical Research
Volume: 82
Subject Category
Geophysics
Accession Number
77A34535
Funding Number(s)
CONTRACT_GRANT: NSG-7209
Distribution Limits
Public
Copyright
Other

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