FN Archimer Export Format
PT J
TI Rapid development and persistence of a massive Antarctic sea ice tongue
BT 
AF RINTOUL, Stephen R.
   SOKOLOV, Serguei
   MASSOM, Robert A.
AS 1:1,3;2:1,3;3:2;
FF 1:;2:;3:;
C1 Centre for Australian Weather and Climate Research, Hobart, Tasmania, Australia
   Australian Antarctic Division, Antarctic Climate and Ecosystems Cooperative Research Centre, Hobart, Tasmania, Australia
   CSIRO Wealth From Oceans National Research Flagship Antarctic Climate and Ecosystems Cooperative Research Centre, North Ryde, New South Wales, Australia
C2 CAWCR, AUSTRALIA
   ACECRC, AUSTRALIA
   CSIRO, AUSTRALIA
IF 3.147
TC 11
UR https://archimer.ifremer.fr/doc/00253/36388/34930.pdf
LA English
DT Article
CR SURVOSTRAL 2000/2001
   SURVOSTRAL 2001/2002
   SURVOSTRAL 2002/2003
   SURVOSTRAL 2003/2004
   SURVOSTRAL 2004/2005
   SURVOSTRAL 92
   SURVOSTRAL 93
   SURVOSTRAL 94
   SURVOSTRAL 95
   SURVOSTRAL 96
   SURVOSTRAL 97
   SURVOSTRAL 98
   SURVOSTRAL 99
BO L'Astrolabe
DE ;Antarctic sea ice;ice tongue;ice advection
AB An extraordinary sea ice tongue developed near 85 degrees E over a period of 30 days in April-May 2002. The ice tongue extended to the north more than 800 km from the surrounding ice edge and covered an area greater than 200,000 km 2. Satellite measurements of ice extent and roughness characteristics demonstrate that the tongue persisted as a distinct feature throughout the winter. Remote sensing observations between 1978 and 2004 confirm that ice tongues occur frequently at this location, although the 2002 tongue was particularly pronounced. We show that ocean currents and winds conspire to favor the development of ice tongues at this location. Mean streamlines of the southern part of the Antarctic Circumpolar Current turn sharply to the north near 85 degrees E after passing through the Princess Elisabeth Trough. The edge and northern limit of the ice tongue correspond well with the pattern of mean streamlines. Mean winds in April - May have a dominant southerly component in this location, favoring offshore advection of ice; year- to- year variability in the prominence of the tongue is largely caused by variations in the wind, with northerly ( southerly) anomalies inhibiting ( promoting) development of a sea ice tongue. Ice drift is strongly northward along the axis of the tongue, suggesting the feature is formed by advection of ice from the south rather than by in situ thermodynamic ice formation. The northward current and sea ice tongue at 85 degrees E are associated with higher biomass at all trophic levels than observed elsewhere in east Antarctica.
PY 2008
PD JUN
SO Journal Of Geophysical Research-oceans
SN 0148-0227
PU Amer Geophysical Union
VL 113
IS C7/C07045
UT 000258155100006
BP 1
EP 16
DI 10.1029/2007JC004541
ID 36388
ER

EF