EarthRef.org Reference Database (ERR)
Development and Maintenance by the EarthRef.org Database Team

Detailed Reference Information
Gebhart et al. 1983
Gebhart, B., Sammakia, B. and Audunson, T. (1983). Melting characteristics of horizontal ice surfaces in cold saline water. Journal of Geophysical Research 88: doi: 10.1029/JC088iC05p02935. issn: 0148-0227.

The results of an experimental investigation of the buoyancy driven flow adjacent to and below a horizontal ice surface melting in cold water at near oceanic salinity are presented. This melting configuration is characteristic of circumistances encountered by sea ice, for example, by new ice and, also, on the bottom of tabular ice floes. Several ambient water temperatures t, are investigated, from tx=-1.75 ¿C to tx=3¿C. Time exposure photographs of the flow field reveal that distinctively different flow regimes occur, across even that narrow range of ambient temperature. At all temperature levels, the flow immediately below the ice surface is found to be horizontally radially inward toward the center of the ice. Also, another outward moving horizontal layer appeared, parallel to and below the inward moving layer. The downward extent of penetration of this layer motion was saeen to vary with tx. The lower layer sinks lower into the ambient mediumi with increasing tx. Measured water-ice interface temperatures and ice melt rates are also presented. These results are compared with earlier similar measurements for vertical surfaces melting in cold saline water and found to vary in a similar way with ambient temperature tx.

BACKGROUND DATA FILES

Abstract

Journal
Journal of Geophysical Research
http://www.agu.org/journals/jb/
Publisher
American Geophysical Union
2000 Florida Avenue N.W.
Washington, D.C. 20009-1277
USA
1-202-462-6900
1-202-328-0566
service@agu.org
Click to clear formClick to return to previous pageClick to submit