FN Archimer Export Format
PT J
TI Modelling the tides and their impacts on the vertical stratification over the Sofala Bank, Mozambique
BT 
AF CHEVANE, C. M.
   PENVEN, Pierrick
   NEHAMA, F. P. J.
   REASON, C. J. C.
AS 1:1,4;2:2;3:3,4;4:4;
FF 1:;2:;3:;4:;
C1 Inst Nacl Hidrog & Navegacao, Maputo, Mozambique.
   CNRS, IFREMER, IRD, UBO,Lab Phys Oceans,LMI ICEMASA,UMR 6523, Plouzane, France.
   UEM, Escola Super Ciencias Marinhas & Costeiras, Quelimane, Mozambique.
   Univ Cape Town, Dept Oceanog, Cape Town, South Africa.
C2 INAHINA, MOZAMBIQUE
   IRD, FRANCE
   UEM, MOZAMBIQUE
   UNIV CAPE TOWN, SOUTH AFRICA
UM LOPS
IF 1.229
TC 11
UR https://archimer.ifremer.fr/doc/00362/47276/47852.pdf
LA English
DT Article
DE ;barotropic tidal currents;ROMS;sea surface temperature;shallow seas;tidal front
AB The Sofala Bank, a wide shelf located along the central coast of Mozambique, hosts tides with high amplitudes. The Regional Ocean Modelling System (ROMS) was used to analyse the tidal currents on the bank and to investigate their effects on the stratification and generation of tidal fronts. During spring tides, barotropic tidal currents with maximum values ranging from 40 cm s–1 to 70 cm s–1 are found on the central bank. The major axis of the tidal ellipses for M2 and S2 follow a cross-shelf direction with mainly anticlockwise rotation. Similar to observations, three distinct regimes occur: (i) a warm well-mixed region on the inner shelf where the depths are <30 m; (ii) a wellmixed colder region above the shelf edge; and (iii) a stratified region offshore. The model shows that the tides lead to cooling where two criteria are satisfied: the Simpson and Hunter parameter log10(h/U3) <3.2 and the depth h >30 m. The shelf edge of the bank is important for internal tide generation. Two frontal structures result, one offshore between cooler mixed waters and warmer stratified waters and the other in shallow inshore waters, between cooler mixed waters and solar heated mixed waters.
PY 2016
SO African Journal Of Marine Science
SN 1814-232X
PU Natl Inquiry Services Centre Pty Ltd
VL 38
IS 4
UT 000391853200002
BP 465
EP 479
DI 10.2989/1814232X.2016.1236039
ID 47276
ER

EF