Role of the Tide on the Structure of the Amazon Plume: A Numerical Modeling Approach DOI
Valentin Ruault, Julien Jouanno, Fabien Durand

et al.

Journal of Geophysical Research Oceans, Journal Year: 2020, Volume and Issue: 125(2)

Published: Feb. 1, 2020

Abstract The dynamical balance on the Amazon shelf and its implication properties of River plume is not fully understood poorly represented in global‐ basin‐scale ocean models. In this study, sensitivity dynamics to tidal forcing explored with a set high‐resolution numerical simulations (1/36°) without tide. A comparison sea surface salinity situ measurements at 5°N (a location where seasonally detaches from coast retroflects toward east) revealed that explicit resolution tide significantly improves representation offshore spread river plume. This study further highlights finding currents affect whole explained by near total collapse northwestward alongshore mean flow located mouth, once included. weakening ambient reduces (i) dilution ratio between salty waters riverine freshwaters (ii) constraint cross‐shore extension low‐salinity bulge. With tides, fresher mouth (by up 5 units), more extended direction, easily exported North Brazil Current break.

Language: Английский

Seasonal circulation patterns of the Yellow and East China Seas derived from satellite-tracked drifter trajectories and hydrographic observations DOI Creative Commons
Heung‐Jae Lie,

Cheol-Ho Cho

Progress In Oceanography, Journal Year: 2016, Volume and Issue: 146, P. 121 - 141

Published: June 24, 2016

Language: Английский

Citations

176
Changes in concentrations of oxygen, dissolved nitrogen, phosphate, and silicate in the southern Yellow Sea, 1980–2012: Sources and seaward gradients DOI
Hongmei Li,

Chuansong Zhang,

Xiurong Han

et al.

Estuarine Coastal and Shelf Science, Journal Year: 2014, Volume and Issue: 163, P. 44 - 55

Published: Dec. 19, 2014

Language: Английский

Citations

121
Coastal ocean dynamics reduce the export of microplastics to the open ocean DOI
Zhiwei Zhang, Hui Wu,

Guyu Peng

et al.

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 713, P. 136634 - 136634

Published: Jan. 14, 2020

Language: Английский

Citations

91
Nutrient-rich submarine groundwater discharge fuels the largest green tide in the world DOI
Shibin Zhao, Bochao Xu,

Qinzhen Yao

et al.

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 770, P. 144845 - 144845

Published: Jan. 21, 2021

Language: Английский

Citations

61
Simulated characteristics of estuarine fronts in the Changjiang River Delta DOI

Tian Qing,

Ya Ping Wang, Jianrong Zhu

et al.

Journal of Oceanology and Limnology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Language: Английский

Citations

1
Tidal Mixing Sustains a Bottom‐Trapped River Plume and Buoyant Coastal Current on an Energetic Continental Shelf DOI Creative Commons
Tianning Wu, Hui Wu

Journal of Geophysical Research Oceans, Journal Year: 2018, Volume and Issue: 123(11), P. 8026 - 8051

Published: Oct. 18, 2018

Abstract Conventional wisdoms on river plume dynamics suggest that a down‐shelf buoyant coastal current will ultimately be trapped at specific depth, is, the trapping as constrained by riverine outflow and offshore bottom Ekman transport. Theoretically, prerequisite is necessary to form stable bottom‐trapped plume. In this study an alternative described carrying out modeling Zhe‐Min Coastal Current (ZMCC). Buoyant water from Changjiang River major factor driving ZMCC, common in plumes; however, depth more determined tidal mixing. When comes sloping topography, strong mixing induces front, shoreward of which layer occupies entire column. Such tidal‐induced front maintains frontal current, intensified both surface due thermal wind balance top boundary rectification. Direct wind‐induced transport only covers small fraction ZMCC; it redistributes and, thus, affects current. The tide‐induced varies much less between seasons than predicted previous theories. Instead, fluctuates strongly spring‐neap cycle. Even summer when upwelling‐favorable winds prevail, still sustains Intense exists many waters, might mechanism forming plumes their associated

Language: Английский

Citations

79
Winter Counter‐Wind Transport in the Inner Southwestern Yellow Sea DOI
Hui Wu, Jinghua Gu, Ping Zhu

et al.

Journal of Geophysical Research Oceans, Journal Year: 2018, Volume and Issue: 123(1), P. 411 - 436

Published: Jan. 1, 2018

Abstract Coastal currents generally flow downshelf with land on the right side (Northern Hemisphere) under geostrophic balance, and are often strengthened by downwelling‐favorable winds. However, recent mooring observation in inner southwestern Yellow Sea showed that coastal transport direction can be substantially changed tidal forcing. In survey, tidal‐averaged transports at two out of three sites remained northward (i.e., upshelf direction) opposite northerly wind, except during a brief neap tide period. Numerical experiments incoming Poincaré wave from East China plays key role forming this counter‐wind system. This produces shoreward stress south 33.5°N Sea, driving an Earth's rotation. Counterpropagating waves northern collide water 32.5–34°N, which produce standing therefore mean sea‐surface setup alongshore cross‐shelf scales both >100 km. causes sea surface gradient, veers to offshore balance. The strong current increases tidal‐mean bottom resistance SCW, thus reduces wind‐driven magnitude smaller than tide‐induced residual velocity. Therefore, persists Changjiang River Estuary becomes major source area for Sea.

Language: Английский

Citations

78
Hypoxia off the Changjiang (Yangtze River) estuary and in the adjacent East China Sea: Quantitative approaches to estimating the tidal impact and nutrient regeneration DOI
⎜Zhuoyi Zhu, Hui Wu, Sumei Liu

et al.

Marine Pollution Bulletin, Journal Year: 2017, Volume and Issue: 125(1-2), P. 103 - 114

Published: Aug. 9, 2017

Language: Английский

Citations

77
Impact of Continental Freshwater Runoff on Coastal Sea Level DOI
Fabien Durand, Christopher G. Piecuch, M. Becker

et al.

Surveys in Geophysics, Journal Year: 2019, Volume and Issue: 40(6), P. 1437 - 1466

Published: May 11, 2019

Language: Английский

Citations

71
Dynamics of the Sediment Plume Over the Yangtze Bank in the Yellow and East China Seas DOI Open Access

Zhifa Luo,

Jianrong Zhu, Hui Wu

et al.

Journal of Geophysical Research Oceans, Journal Year: 2017, Volume and Issue: 122(12), P. 10073 - 10090

Published: Nov. 17, 2017

Abstract A distinct sediment plume exists over the Yangtze Bank in Yellow and East China Seas (YECS) winter, but it disappears summer. Based on satellite color images, there are two controversial viewpoints about formation mechanism for plume. One viewpoint is that forms because of cross‐shelf advection highly turbid water along Jiangsu coast. The other caused by local bottom resuspension diffused to surface layer through vertical turbulent mixing. dynamic has been unclear until now. This issue was explored using a numerical model present paper. Observed wave, current, data from 29 December 2016 16 January 2017 were collected near coast used validate model. results indicated can reproduce hydrodynamic processes. Numerical experiments showed could be suspended shear stress diffuse mixing winter; however, upward diffusion restricted strong stratification generated locally due primarily via tide‐induced rather than Bank.

Language: Английский

Citations

65