FN Archimer Export Format
PT J
TI Circumpolar structure and distribution of the Antarctic Circumpolar Current fronts: 1. Mean circumpolar paths
BT 
AF SOKOLOV, Serguei
   RINTOUL, Stephen R.
AS 1:1,2,3,4;2:1,2,3,4;
FF 1:;2:;
C1 CSIRO, Hobart, Tas 7001, Australia.
   Ctr Australian Weather & Climate Res, Aspendale, Vic, Australia.
   Antarctic Climate & Ecosyst Cooperat Res Ctr, Sandy Bay, Tas, Australia.
   Wealth Oceans Natl Res Flagship, Hobart, Tas, Australia.
C2 CSIRO, AUSTRALIA
   CAWCR, AUSTRALIA
   ACE CRC, AUSTRALIA
   CSIRO, AUSTRALIA
IF 3.082
TC 373
UR https://archimer.ifremer.fr/doc/00253/36387/34931.pdf
LA English
DT Article
CR SURVOSTRAL 2000/2001
   SURVOSTRAL 2001/2002
   SURVOSTRAL 2002/2003
   SURVOSTRAL 2003/2004
   SURVOSTRAL 2004/2005
   SURVOSTRAL 2005/2006
   SURVOSTRAL 2006/2007
   SURVOSTRAL 2007/2008
   SURVOSTRAL 92
   SURVOSTRAL 93
   SURVOSTRAL 94
   SURVOSTRAL 95
   SURVOSTRAL 96
   SURVOSTRAL 97
   SURVOSTRAL 98
   SURVOSTRAL 99
BO L'Astrolabe
DE ;Southern Ocean;Antarctic Circumpolar Current
AB High resolution hydrographic sections and maps of the gradient of sea surface height (SSH) reveal that the Antarctic Circumpolar Current (ACC) consists of multiple jets or frontal filaments. Here we use a 15 year time series of SSH observations to determine the circumpolar structure and distribution of the ACC fronts. The jets are consistently aligned with particular streamlines along the entire circumpolar path, confirming and extending the results of an earlier study restricted to the region south of Australia. The intensity of the fronts (as measured by the cross-front gradient of SSH) varies along the fronts and the individual branches merge and diverge, often in response to interactions with bathymetry. Maps of absolute velocity at 1000 m depth derived from Argo trajectories confirm the existence of multiple current cores throughout the Southern Ocean. High resolution hydrographic sections and profiles of temperature and salinity from Argo floats are used to show that the front locations derived from fitting SSH contours to maps of SSH gradient are consistent with locations inferred from the traditional criteria based on water mass properties, suitably modified to account for multiple frontal branches. Three regions are examined in detail: the Crozet Plateau, the Kerguelen Plateau and the Scotia Sea. These examples show how recognition of the multiple jets of the ACC can help resolve discrepancies between previous studies of ACC fronts.
PY 2009
PD NOV
SO Journal Of Geophysical Research-oceans
SN 0148-0227
PU Amer Geophysical Union
VL 114
IS C11/C11018
UT 000271999300001
BP 1
EP 19
DI 10.1029/2008JC005108
ID 36387
ER

EF