FN Archimer Export Format
PT J
TI Interactions between the Agulhas Current and the eastern margin of the Agulhas Bank
BT 
AF KRUG, Marjolaine
   TOURNADRE, Jean
   DUFOIS, F.
AS 1:1,2,3;2:4;3:2,5;
FF 1:;2:PDG-ODE-LOS;3:;
C1 CSIR, Ecosyst Earth Observat, Cape Town, South Africa.
   Univ Cape Town, Mare Inst, Dept Oceanog, ZA-7925 Cape Town, South Africa.
   Univ Cape Town, Nansen Tutu Ctr Marine Environm Res, ZA-7700 Rondebosch, South Africa.
   IFREMER, Lab Oceanogr Spatiale, Plouzane, France.
   CSIRO Marine & Atmospher Res, Floreat, WA, Australia.
C2 CSIR (S. AFRICA), SOUTH AFRICA
   UNIV CAPE TOWN, SOUTH AFRICA
   UNIV CAPE TOWN, SOUTH AFRICA
   IFREMER, FRANCE
   CSIRO, AUSTRALIA
SI BREST
SE PDG-ODE-LOS
IN WOS Ifremer jusqu'en 2018
   copubli-int-hors-europe
   copubli-sud
IF 1.892
TC 22
UR https://archimer.ifremer.fr/doc/00186/29676/28457.pdf
LA English
DT Article
DE ;Agulhas Current;Agulhas Bank;Natal pulse;Satellite oceanography;Altimetry
AB Interactions between the Agulhas Current and the ecologically important region of the Agulhas Bank are studied through the analysis of high resolution along-track altimetry, merged mapped altimetry and in situ measurements of current speed and direction undertaken from a moored Accoustic Doppler Current Profiler (ADCP). Comparisons between current observations collected from the ADCP and the satellite altimeters are made to evaluate the validity of the analysis conducted on the altimetry. Both altimetry and in situ observations show that Natal Pulses are a major driver of variability along the eastern margin of the Agulhas Bank. On average, it is estimated that the circulation along the eastern margin of the Agulhas Bank is influenced by Natal Pulses for 110 days per year. In the outer shelf region, the offshore displacement of the Agulhas Current׳s front associated with the passage of the Natal Pulse meander drives a strong cyclonic circulation. Closer to the shore, the impact of a Natal Pulse is felt primarily through the intrusion of the Natal Pulse׳s leading edge onto the shelf. While Natal Pulses are responsible for the largest temperature and current velocity anomalies recorded in the in situ dataset, most of the intra-annual variability observed along the continental slope of the Agulhas Bank and east of 20°E, occurs over shorter time-scales and is currently not adequately observed using altimetry.
PY 2014
PD JUL
SO Continental Shelf Research
SN 0278-4343
PU Pergamon-elsevier Science Ltd
VL 81
UT 000336825300007
BP 67
EP 79
DI 10.1016/j.csr.2014.02.020
ID 29676
ER

EF