Journal
GEOPHYSICAL RESEARCH LETTERS
Volume 34, Issue 19, Pages -Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1029/2007GL030686
Keywords
-
Categories
Ask authors/readers for more resources
The subglacial, geothermal lake beneath the Western Skafta cauldron ( depression) in the Vatnajokull ice cap, Iceland, was accessed by hot water drilling through the overlying 300 m-thick ice shelf. Most of the ca. 100-m water column was near 4.7 degrees C, but was underlain by a distinct similar to 10 m-deep water mass at 3.5 degrees C. The sensible heat content of the lake water is approximately twice the potential energy dissipated in outburst floods, and the temperature of the lake may be an important factor in the development of subglacial water courses of jokulhlaups from the lake. The lake temperature is higher than the temperature of maximum density, implying that convective heat transfer can take place in the lake. The vertical temperature structure suggests a large-scale recirculating flow in the lake, the rate of which was estimated from the lake temperatures and the chemical composition of a water sample.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available