Numerical Models of Ice-Shelf Flow: Ideal/Real
نویسندگان
چکیده
منابع مشابه
Ice Shelf Water plume flow beneath FilchnerRonne Ice Shelf, Antarctica
[1] A two-dimensional plume model is used to study the interaction between FilchnerRonne Ice Shelf, Antarctica and its underlying ocean cavity. Ice Shelf Water (ISW) plumes are initiated by the freshwater released from a melting ice shelf and, if they rise, may become supercooled and deposit marine ice due to the pressure increase in the in situ freezing temperature. The aim of this modeling st...
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Interferometric synthetic aperture radar (InSAR) observations of ice-shelf flow contain ocean-tide and atmospheric-pressure signals. A model-based correction can be applied, but this method is limited by its dependency upon model accuracy, which in remote regions can be uncertain. Here we describe a method to determine two-dimensional ice-shelf flow vectors independently of model predictions of...
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[1] Reduction or loss of a restraining ice shelf will cause speed-up of flow from contiguous ice streams, contributing to sea-level rise, with greater changes from ice streams that are wider, have stickier beds, or have higher driving stress. Loss of buttressing offsetting half of the tendency for icestream/ice-shelf spreading for an ice stream similar to Pine Island Glacier, West Antarctica is...
متن کاملIce shelf structure derived from dispersion curve analysis of ambient seismic noise, Ross Ice Shelf, Antarctica
A. Diez,1 P.D. Bromirski,1 P. Gerstoft,1 R.A. Stephen,2 R.E. Anthony,3 R.C. Aster,3 C. Cai,4 A. Nyblade5 and D.A. Wiens4 1Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093-0209, USA. E-mail: [email protected] 2Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA 3Department of Geosciences, Warner College of Natural Resources, Colorado State Uni...
متن کاملThe Effects of Rotation and Ice Shelf Topography on Frazil-Laden Ice Shelf Water Plumes
A model of the dynamics and thermodynamics of a plume of meltwater at the base of an ice shelf is presented. Such ice shelf water plumes may become supercooled and deposit marine ice if they rise (because of the pressure decrease in the in situ freezing temperature), so the model incorporates both melting and freezing at the ice shelf base and a multiple-size-class model of frazil ice dynamics ...
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ژورنال
عنوان ژورنال: Annals of Glaciology
سال: 1989
ISSN: 0260-3055,1727-5644
DOI: 10.1017/s0260305500007035