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Sensitivity of an energy balance climate model with predicted snowfall ratesA snowfall parameterization and a polar-ice-sheet model are developed and applied to the two-level zonally averaged seasonal energy-balance climate model of Held and Suarez (1979), and sensitivity experiments involving changes in insolation are performed both with and without ice sheets. The results are presented in tables and graphs, and the hydrological-cycle response to insolation changes is found to be similar to that predicted by global-circulation models employing prescribed precipitation levels, with a somewhat higher sensitivity in the snow line. The area covered by ice sheets in the ice-sheet models is shown to be greater than that covered by permanent snow in the models without ice sheets, an effect attributed to lower surface temperatures over the ice. It is inferred that an increase in the solar constant can cause increased high-latitude precipitation but not an ice age.
Document ID
19850062316
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Bowman, K. P.
(NASA Goddard Space Flight Center Greenbelt, MD; Princeton University, NJ, United States)
Date Acquired
August 12, 2013
Publication Date
May 1, 1985
Publication Information
Publication: Tellus, Series A - Dynamic Meteorology and Oceanography
Volume: 37A
ISSN: 0280-6495
Subject Category
Meteorology And Climatology
Accession Number
85A44467
Funding Number(s)
CONTRACT_GRANT: NSF ATM-81-06800
Distribution Limits
Public
Copyright
Other

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