Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
PARAMETERIZING TURBULENT EXCHANGE OVER SEA ICE: THE ICE STATION WEDDELL RESULTS
 

Summary: PARAMETERIZING TURBULENT EXCHANGE OVER SEA ICE:
THE ICE STATION WEDDELL RESULTS
EDGAR L ANDREAS1,*, RACHEL E. JORDAN1
and ALEKSANDR P. MAKSHTAS2;3
1
U.S. Army Cold Regions Research and Engineering Laboratory, 72 Lyme Road, Hanover, New
Hampshire 03755-1290, U.S.A.; 2
International Arctic Research Center, 930 Koyukuk Drive,
Fairbanks, Alaska 99775-7335, U.S.A.; 3
Arctic and Antarctic Research Institute, 38 Bering
Street, St. Petersburg, 199397, Russia
(Received in final form 23 February 2004)
Abstract. A 4-month deployment on Ice Station Weddell (ISW) in the western Weddell Sea
yielded over 2000 h of nearly continuous surface-level meteorological data, including eddy-
covariance measurements of the turbulent surface fluxes of momentum, and sensible and
latent heat. Those data lead to a new parameterization for the roughness length for wind
speed, z0, for snow-covered sea ice that combines three regimes: an aerodynamically smooth
regime, a high-wind saltation regime, and an intermediate regime between these two extremes
where the macroscale or `permanent' roughness of the snow and ice determines z0. Roughness
lengths for temperature, zT, computed from this data set corroborate the theoretical model

  

Source: Andreas, Edgar L - Cold Regions Research and Engineering Laboratory, USACE Engineer Research and Development Center

 

Collections: Geosciences