FN Archimer Export Format
PT J
TI Biweekly current oscillations on the continental slope of the Gulf of Guinea
BT 
AF VANGRIESHEIM, Annick
   TREGUIER, Anne-Marie
   ANDRE, Gael
AS 1:1;2:2,4;3:3;
FF 1:PDG-DOP-DCB-EEP-LEP;2:;3:PDG-DOP-DCB-DYNECO-PHYSED;
C1 IFREMER, Lab Environm Profond, Brest, France.
   IFREMER, CNRS, Lab Phys Oceans, Brest, France.
   IFREMER, Lab Phys Hydrodynam & Sedimentaire, Brest, France.
C2 IFREMER, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
   CNRS, FRANCE
SI BREST
SE PDG-DOP-DCB-EEP-LEP
   PDG-DOP-DCB-OPS-LPO
   PDG-DOP-DCB-DYNECO-PHYSED
IN WOS Ifremer jusqu'en 2018
   copubli-france
IF 2.025
TC 17
UR https://archimer.ifremer.fr/doc/2005/publication-1032.pdf
LA English
DT Article
CR BIOZAIRE 1
   BIOZAIRE 2
   BIOZAIRE 3
BO Unknown
   Anchored Buoy
DE ;Linear wave model;Current meter measurement;Current oscillation;Continental slope
AB Current meter measurements have been carried out for 3 years on the continental slope of the Gulf of Guinea, near 7.5 degrees S off the Angola coast. Currents in a water depth of 1300 m over the continental slope show a remarkable biweekly oscillation, bottom intensified, and with currents oriented nearly parallel to the isobaths. With a peak-to-peak amplitude reaching 20-30 cm s(-1) at 30 in above the bottom, this signal is the most energetic at sub-inertial frequencies. Simultaneous measurements deeper on the continental rise (in a water depth of 4000 m) show a more complex signal dominated by lower frequencies, and with less clear polarization. Simple linear topographic wave theories are compared to the observations. A combination of coastal trapped waves with cross-slope mode 3-5 could be consistent with the observed currents. A three-dimensional 1/6 degrees model suggests the existence of modes trapped to the slope, although with lower amplitude than observed.
PY 2005
PD NOV
SO Deep Sea Research Part I: Oceanographic Research Papers
SN 0967-0637
PU Elsevier
VL 52
IS 11
UT 000232847500012
BP 2168
EP 2183
DI 10.1016/j.dsr.2005.05.010
ID 1032
ER

EF