FN Archimer Export Format PT J TI South equatorial current of the indian-ocean - a 50-day oscillation BT AF HEYWOOD, KJ BARTON, ED ALLEN, GL AS 1:;2:;3:; FF 1:;2:;3:; C1 UNIV COLL N WALES,SCH OCEAN SCI,MENAI BRIDGE LL59 5EY,GWYNEDD,WALES C2 UNIV COLL N WALES,SCH OCEAN SCI,MENAI BRIDGE LL59 5EY,GWYNEDD,WALES IF 0.662 TC 8 UR https://archimer.ifremer.fr/doc/00098/20890/18504.pdf LA English DT Article DE ;50-DAY OSCILLATION;ROSBBY WAVE;INDIAN OCEAN;CURRENTS;CZCS AB Observations of a fifty-day oscillation in the meridional component of the South Equatorial Current in the Western Indian Ocean are presented. Currents measured in 4000 m of water close to the atoll of Aldabra (46-degrees-E, 9-degrees-S) reveal the oscillation throughout the water column to a depth of 3 000 m. Further evidence of the oscillation is presented in shipboard Acoustic Doppler Current Profiler (ADCP) sections and in Coastal Zone Color Scanner (CZCS) imagery. The oscillations are consistent with a zonally propagating Rossby wave caused by shear instability in the zonal flow of the South Equatorial Current. PY 1994 SO Oceanologica Acta SN 0399-1784 PU Gauthier-Villars VL 17 IS 3 UT A1994PV50000003 BP 255 EP 261 ID 20890 ER EF