Velocity and strain rates derived from InSAR analysis over the Amery Ice Shelf, East Antarctica
نویسندگان
چکیده
منابع مشابه
Mapping the grounding zone of the Amery Ice Shelf, East Antarctica using InSAR, MODIS and ICESat
We use a combination of satellite techniques (interferometric synthetic aperture radar (InSAR), visible-band imagery, and repeat-track laser altimetry) to develop a benchmark map for the Amery Ice Shelf (AIS) grounding zone (GZ), including its islands and ice rises. The break-in-slope, as an indirect estimate of grounding line location, was mapped for the entire AIS. We have also mapped ,55% of...
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S U M M A R Y The structure of ice shelves is important for modelling the dynamics of ice flux from the continents to the oceans. While other, more traditional techniques provide many constraints, passive imaging with seismic noise is a complementary tool for studying and monitoring ice shelves. As a proof of concept, here we study noise cross-correlations and autocorrelations on the Amery Ice ...
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Calving is a complex process subject to several cooperating atmospheric, oceanographic and glaciological forcings that vary in space and time, and whose relative effects are challenging to separate. Statistical ‘Systems Analysis’ is commonly used in engineering and economics to extricate complex ‘force–response’ relationships. Here we apply Systems Analysis to the Amery rift system, East Antarc...
متن کاملAn investigation into the forces that drive ice-shelf rift propagation on the Amery Ice Shelf, East Antarctica
For three field seasons (2002/03, 2004/05, 2005/06) we have deployed a network of GPS receivers and seismometers around the tip of a propagating rift on the Amery Ice Shelf, East Antarctica. During these campaigns we detected seven bursts of episodic rift propagation. To determine whether these rift propagation events were triggered by short-term environmental forcings, we analyzed simultaneous...
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...
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ژورنال
عنوان ژورنال: Annals of Glaciology
سال: 2002
ISSN: 0260-3055,1727-5644
DOI: 10.3189/172756402781817842