%0 Journal Article %9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES %A Vinh, V. D. %A Ouillon, Sylvain %A Uu, D. V. %T Estuarine turbidity maxima and variations of aggregate parameters in the Cam-Nam Trieu Estuary, North Vietnam, in early wet season %D 2018 %L fdi:010072494 %G ENG %J Water %@ 2073-4441 %K estuarine turbidity maximum ; flocculation ; aggregation ; excess of density ; fractal dimension ; settling velocity ; suspended sediment ; Red River ; Vietnam ; Hai Phong %K VIET NAM %K FLEUVE ROUGE ; HAI PHONG %M ISI:000424397400065 %N 1 %P art. 68 [33 ] %R 10.3390/w10010068 %U https://www.documentation.ird.fr/hor/fdi:010072494 %> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers18-04/010072494.pdf %V 10 %W Horizon (IRD) %X This study aims at exploring the characteristic parameters of the Estuarine Turbidity Maxima (ETM) and at investigating their tidal variations within the Cam-Nam Trieu estuary (North Vietnam) during the early wet season. Six longitudinal river transects were performed at spring tide. Two types of ETM were observed: an upper well mixed ETM with high Suspended Particulate Matter (SPM) concentrations up to the surface at low salinity (0.11 to <1 psu), and a lower ETM confined in a bottom layer over stratified waters at salinities between similar to 1 psu and 15 psu. Their length depended on the longitudinal salinity gradient and was highest at low tide than at high tide. D-50 of the flocs varied between 35 and 90 m, their excess of density between 60 and 300 kg m(-3) and their settling velocity ranged from 0.07 to 0.55 mm s(-1) with values between 0.12 and 0.40 mm s(-1) in the core of ETMs. The average fractal dimension of flocs was estimated to vary between 1.93 (at high tide) to 2.04 (at low tide). %$ 062