FN Archimer Export Format
PT J
TI The cavity under the Amery Ice Shelf, East Antarctica
BT 
AF GALTON-FENZI, B. K.
   MARALDI, C.
   COLEMAN, R.
   HUNTER, J.
AS 1:1,2,3;2:4;3:1,2,3;4:1,3;
FF 1:;2:;3:;4:;
C1 Univ Tasmania, Ctr Marine Sci, Hobart, Tas 7001, Australia.
   CSIRO, Hobart, Tas 7001, Australia.
   CRC, Hobart, Tas 7001, Australia.
   Legos, F-31401 Toulouse, France.
C2 UNIV TASMANIA, AUSTRALIA
   CSIRO, AUSTRALIA
   CRC, AUSTRALIA
   LEGOS, FRANCE
IF 1.496
TC 31
UR https://archimer.ifremer.fr/doc/00238/34899/34556.pdf
LA English
DT Article
CR VT 54 / NIVMER02
   VT 58 / NIVMER03
   VT 61 / NIVMER04
   VT 76 / NIVMER05
BO Marion Dufresne
AB Ocean circulation under ice shelves and associated rates of melting and freezing are strongly influenced by the shape of the sub-ice-shelf cavity. We have refined an existing method and used additional in situ measurements to estimate the cavity shape under the Amery Ice Shelf, East Antarctica. A finite-element hydrodynamic ocean-tide model was used to simulate the major tidal constituents for a range of different sub-Amery Ice Shelf cavity water-column thicknesses. The data are adjusted in the largely unsurveyed southern region of the ice-shelf cavity by comparing the complex error between simulated tides and in situ tides, derived from GPS observations. We show a significant improvement in the simulated tides, with a combined complex error of 1.8 cm, in comparison with past studies which show a complex error of similar to 5.3 cm. Our bathymetry incorporates ice-draft data at the grounding line and seismic surveys, which have provided a considerable amount of new data. This technique has particular application when the water column beneath ice shelves is inaccessible and in situ GPS data are available.
PY 2008
PD DEC
SO Journal Of Glaciology
SN 0022-1430
PU Int Glaciol Soc
VL 54
IS 188
UT 000264036800012
BP 881
EP 887
DI 10.3189/002214308787779898
ID 34899
ER

EF