The internal layering of Pine Island Glacier, West Antarctica, from airborne radar-sounding data
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The internal layering of Pine Island Glacier, West Antarctica, from airborne radar-sounding data. / Karlsson, Nanna Bjørnholt; Rippin, David; Vaughan, David; Corr, Hugh.
In: Annals of Glaciology, Vol. 50, No. 51, 2010, p. 141-146.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - The internal layering of Pine Island Glacier, West Antarctica, from airborne radar-sounding data
AU - Karlsson, Nanna Bjørnholt
AU - Rippin, David
AU - Vaughan, David
AU - Corr, Hugh
PY - 2010
Y1 - 2010
N2 - This paper presents an overview of internal layering across Pine Island Glacier, West Antarctica, as measured from airborne-radar data acquired during a survey conducted by the British Antarctic Survey and the University of Texas in the 2004/05 season. Internal layering is classified according to type (continuous/discontinuous/missing) and the results compared with InSAR velocities. Several areas exhibit disruption of internal layers that is most likely caused by large basal shear stresses. Signs of changes in flow were identified in a few inter-tributary areas, but overall the layering classification and distribution of layers indicate that only minor changes in ice-flow regime have taken place. This is supported by bed-topography data that show the main trunk of the glacier, as well as some of the tributaries, are topographically controlled and located in deep basins.
AB - This paper presents an overview of internal layering across Pine Island Glacier, West Antarctica, as measured from airborne-radar data acquired during a survey conducted by the British Antarctic Survey and the University of Texas in the 2004/05 season. Internal layering is classified according to type (continuous/discontinuous/missing) and the results compared with InSAR velocities. Several areas exhibit disruption of internal layers that is most likely caused by large basal shear stresses. Signs of changes in flow were identified in a few inter-tributary areas, but overall the layering classification and distribution of layers indicate that only minor changes in ice-flow regime have taken place. This is supported by bed-topography data that show the main trunk of the glacier, as well as some of the tributaries, are topographically controlled and located in deep basins.
KW - Faculty of Science
M3 - Journal article
VL - 50
SP - 141
EP - 146
JO - Annals of Glaciology
JF - Annals of Glaciology
SN - 0260-3055
IS - 51
ER -
ID: 40313547