Rutford Ice Stream
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Rutford Ice Stream (Script error: No such module "Coordinates".) is a major Antarctic ice stream, about Script error: No such module "convert". long and over Script error: No such module "convert". wide, which drains southeastward between the Sentinel Range, Ellsworth Mountains and Fletcher Ice Rise into the southwest part of Ronne Ice Shelf. Named by US-ACAN for geologist Robert Hoxie Rutford, a member of several USARP expeditions to Antarctica; leader of the University of Minnesota Ellsworth Mountains Party, 1963-1964. Rutford served as Director of the Division of Polar Programs, National Science Foundation, 1975-1977.[1]
The ice stream is situated in a deep trough which is a tectonic feature between the Ellsworth Mountains and the Fletcher Promontory. Because of this the ice stream position may have been stable for millions of years. The bed of the ice stream reaches Script error: No such module "convert". below sea level. Therefore, between the bed of the ice stream and the height of the Ellsworth Mountains there is a vertical relief of Script error: No such module "convert". over a distance of only Script error: No such module "convert"..[2] At the upper (inland) end of the ice stream the ice thickness reaches Script error: No such module "convert". falling to around Script error: No such module "convert". in the trough. Flow speed reaches a maximum of around Script error: No such module "convert". per year about Script error: No such module "convert". inland from where the ice stream meets the Ronne Ice Shelf and starts to float on the sea.[2]
The speed of the Rutford ice stream varies by as much as 20% every two weeks, in response to variations in the tides.[3]
Tributary glaciers
- Yamen Glacier
- Vicha Glacier
- Newcomer Glacier
- Vit Ice Piedmont
- Embree Glacier
- Young Glacier
- Ranuli Ice Piedmont
- Ellen Glacier
- Lardeya Ice Piedmont
- Guerrero Glacier
- Hough Glacier
- Remington Glacier
- Thomas Glacier
- Razboyna Glacier
- Drama Glacier
- Gabare Glacier
- Divdyadovo Glacier
- Minnesota Glacier
- Union Glacier
See also
Further reading
- Edward C. King, Flow dynamics of the Rutford Ice Stream ice-drainage basin, West Antarctica, from radar stratigraphy, Annals of Glaciology 50(51) 2009
- G.H. GUDMUNDSSON, A. JENKINS, Ice-flow velocities on Rutford Ice Stream, West Antarctica, are stable over decadal timescales, Journal of Glaciology, Vol. 55, No. 190, 2009, PP 339–344
- Edward C. King, Hamish D. Pritchard, and Andrew M. Smith, Subglacial landforms beneath Rutford Ice Stream, Antarctica: detailed bed topography from ice-penetrating radar, Earth Syst. Sci. Data, 8, 151–158, 2016, doi:10.5194/essd-8-151-2016, PP 151–158
- John WOODWARD, Edward C. King, Hamish D. Pritchard, and Andrew M. Smith, Radar surveys of the Rutford Ice Stream onset zone, West Antarctica: indications of flow (in)stability?, Annals of Glaciology 50(51) 2009, PP 57–62
References
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- ↑ Script error: No such module "citation/CS1".
- ↑ a b Script error: No such module "citation/CS1".
- ↑ ScienceDaily, Tidal Motion Influences Antarctic Ice Sheet Dec. 24, 2006
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