FN Archimer Export Format
PT J
TI Intratidal and Subtidal Circulation in a Tropical Estuary during Wet Season: The Maroni, French Guiana
BT 
AF Ross, Lauren
   Sottolichio, Aldo
   Maury, Tanguy
   Lesourd, Sandric
   Gardel, Antoine
AS 1:1;2:2;3:3;4:4;5:3;
FF 1:;2:;3:;4:;5:;
C1 Department of Civil & Environmental Engineering, University of Maine, Orono, ME 04469, USA
   CNRS EPOC Laboratory, University of Bordeaux, 33615 Pessac, France
   USR LEEISA, CNRS, Ifremer, University of Guyane, 97300 Cayenne, French Guiana
   UMR 6143 M2C, University of Caen-Normandie, 14000 Caen, France
C2 UNIV MAINE US, USA
   UNIV BORDEAUX, FRANCE
   CNRS, FRANCE
   UNIV CAEN NORMANDIE, FRANCE
UM LEEISA
IN WOS Cotutelle UMR
   DOAJ
   copubli-france
   copubli-univ-france
   copubli-int-hors-europe
IF 2.744
TC 5
UR https://archimer.ifremer.fr/doc/00594/70588/68772.pdf
LA English
DT Article
DE ;tropical estuary;subtidal flow;wet season;wind-driven flow;channel curvature
AB Observations of water level, current velocity, river discharge, wind and salinity were collected in the Maroni estuary, on the border of French Guiana and Suriname during the wet season of 2018 to explore subtidal circulation patterns. Measurements are complimented by the application of analytical models with an aim to diagnose forcing mechanisms responsible for producing subtidal flows during the day of data collection and to extrapolate these findings to other time periods with variable wind and river forcing. Subtidal along-channel flows were found to be dominated by river discharge, with seaward directed velocities found throughout the channel section reaching 40 cm s −1 . This pattern was altered with strong southwesterly winds, which produced and inverse gravitational circulation pattern despite the elevated river discharge. Secondary, or cross-channel flows, displayed a three-layer vertical structure in the main channel due to a combination of channel curvature and tidal asymmetry in the lateral baroclinic pressure gradient. The pressure gradient was produced by a salinity intrusion front that only manifested in the channel during flood tide. This is the first comprehensive study of tidal and subtidal flow dynamics in the Maroni estuary. 
PY 2019
PD DEC
SO Journal Of Marine Science And Engineering
SN 2077-1312
PU MDPI AG
VL 7
IS 12
UT 000506654700013
DI 10.3390/jmse7120433
ID 70588
ER

EF