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Atmospheric boundary layer modification in the marginal ice zoneA case study of the Andreas et al. (1984) data on atmospheric boundary layer modification in the marginal ice zone is made. The model is a two-dimensional, multilevel, linear model with turbulence, lateral and vertical advection, and radiation. Good agreement between observed and modeled temperature cross sections is obtained. In contrast to the hypothesis of Andreas et al., the air flow is found to be stable to secondary circulations. Adiabatic lifting and, at long fetches, cloud top longwave cooling, not an air-to-surface heat flux, dominate the cooling of the boundary layer. The accumulation with fetch over the ice of changes in the surface wind field is shown to have a large effect on estimates of the surface wind stress. It is speculated that the Andreas et al. estimates of the drag coefficient over the compact sea ice are too high.
Document ID
19870036450
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Bennett, Theodore J., Jr.
(NASA Goddard Institute for Space Studies New York, United States)
Hunkins, Kenneth
(Lamont-Doherty Geological Observatory Palisades, NY, United States)
Date Acquired
August 13, 2013
Publication Date
November 15, 1986
Publication Information
Publication: Journal of Geophysical Research
Volume: 91
ISSN: 0148-0227
Subject Category
Meteorology And Climatology
Accession Number
87A23724
Funding Number(s)
CONTRACT_GRANT: N00014-84-K-0735
CONTRACT_GRANT: NSF ATM-82-03509
Distribution Limits
Public
Copyright
Other

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