文档介绍：Deep-Sea Research, 1977, Vol. 24, pp. 1195 to 1202. Pergamon Press. Printed in Great Britain.
NOTE
Tidal currents in the
central Weddell Sea
JASON H. MIDDLETON* and THEODORE D. FOSTER*
(Received 2 May 1977: in revisedJorm 30 June 1977: accepted 4 July 1977)
Abstract A 349-day series of consecutive hourly readings from a single current meter mooring in the
deep water of the Weddell Sea was analysed to determine the tidal currents. Amplitudes and
Greenwich phase-lags were found for both the east-going and north-going components of velocity for
the eight principal harmonic constituents. Constituent tidal ellipses were drawn for the four most
energetic constituents O1, Kt, M2, and $2 ; the current vectors rotated clockwise in each case. Analysis
of each successive quarter of the time series yielded results consistent with those from analysis of the
entire record. The amounts of barotropic and baroclinic energy in the diurnal and semidiurnal tidal
bands are consistent with the barotropic nature of circulation in the Weddell Sea.
INTRODUCTION
IN FEBRUARY 1975, as part of the International Weddell Sea Oceanographic Expedition
(FOSTER, 1975),