Analysis of the Niagara River plume dynamics

1992 ◽  
Vol 97 (C2) ◽  
pp. 2403 ◽  
Author(s):  
Ann K. Masse ◽  
C. R. Murthy
Keyword(s):  
River Plume ◽  
Niagara River ◽  
Plume Dynamics

Breaking Surface Wave Effects on River Plume Dynamics during Upwelling-Favorable Winds

2013 ◽  
Vol 43 (9) ◽  
pp. 1959-1980 ◽  
Author(s):  
Gregory P. Gerbi ◽  
Robert J. Chant ◽  
John L. Wilkin
Keyword(s):  
Gravity Waves ◽  
Wave Breaking ◽  
Deep Ocean ◽  
River Plume ◽  
Sea Floor ◽  
Plume Dynamics ◽  
Surface Gravity Waves ◽  
Shear Dispersion ◽  
Wave Effects ◽  
Critical Richardson Number

Abstract This study examines the dynamics of a buoyant river plume in upwelling-favorable winds, concentrating on the time after separation from the coast. A set of idealized numerical simulations is used to examine the effects of breaking surface gravity waves on plume structure and cross-shore dynamics. Inclusion of a wave-breaking parameterization in the two-equation turbulence submodel causes the plume to be thicker and narrower, and to propagate offshore more slowly, than a plume in a simulation with no wave breaking. In simulations that include wave breaking, the plume has much smaller vertical gradients of salinity and velocity than in the simulation without breaking. This leads to decreased importance of shear dispersion in the plumes with wave breaking. Much of the widening rate of the plume is explained by divergent Ekman velocities at the off- and onshore edges. Some aspects of plume evolution in all cases are predicted well by a simple theory based on a critical Richardson number and an infinitely deep ocean. However, because the initial plume in these simulations is in contact with the sea floor in the inner shelf, some details are poorly predicted, especially around the time that the plume separates from the coast.

Modeling the Nestos River plume dynamics using ELCOM

2011 ◽  
Vol 33 (1-3) ◽  
pp. 22-35 ◽  
Author(s):  
N. Kamidis ◽  
G. Sylaios ◽  
V.A. Tsihrintzis
Keyword(s):  
River Plume ◽  
Plume Dynamics ◽  
Nestos River

scholarly journals The influence of river plume dynamics on trace metal accumulation in calanoid copepods

2010 ◽  
Vol 55 (6) ◽  
pp. 2487-2502 ◽  
Author(s):  
Derek D. Wright ◽  
Thomas K. Frazer ◽  
John R. Reinfelder
Keyword(s):  
Trace Metal ◽  
Metal Accumulation ◽  
River Plume ◽  
Calanoid Copepods ◽  
Plume Dynamics

scholarly journals Satellite‐based empirical models linking river plume dynamics with hypoxic area and volume

2016 ◽  
Vol 43 (6) ◽  
pp. 2693-2699 ◽  
Author(s):  
Chengfeng Le ◽  
John C. Lehrter ◽  
Chuanmin Hu ◽  
Daniel R. Obenour
Keyword(s):  
Empirical Models ◽  
River Plume ◽  
Plume Dynamics ◽  
Hypoxic Area ◽  
Area And Volume

Mixing Characteristics of the Niagara River Plume in Lake Ontario

1989 ◽  
Vol 24 (1) ◽  
pp. 143-162 ◽  
Author(s):  
C. R. Murthy ◽  
K. C. Miners
Keyword(s):  
General Circulation ◽  
River Mouth ◽  
Lake Ontario ◽  
Intermediate Stage ◽  
River Plume ◽  
Thermal Front ◽  
Niagara River ◽  
Initial Stage ◽  
Mixing Characteristics ◽  
Lagrangian Drifter

Abstract Data collected between 1982 and 1985 from Lagrangian drifter experiments in which about ten drifters were tracked for ten to twelve hours from their release across the Niagara River mouth, and from concurrently taken ship-based temperature soundings at fixed grid stations off the river mouth, are used to develop a conceptual model of the mixing characteristics of the Niagara River in Lake Ontario. The data obtained suggest a three-stage mixing process. In the initial stage, the river inflow momentum dominates and the plume is well mixed vertically. In the intermediate stage, the interaction of the well mixed, buoyant river plume with colder water from deeper depths of the lake generates a sharp thermal front. In the final stage, the river plume responds to the prevailing winds and the general circulation of the lake. The correlation between these observed plume characteristics and the distribution of toxic contaminants such as mercury and mirex in Lake Ontario sediments attributed to Niagara River outflow is illustrated.

Wind-driven river plume dynamics and toxic Alexandrium tamarense blooms in the St. Lawrence estuary (Canada): A modeling study

Harmful Algae ◽  
2008 ◽  
Vol 7 (2) ◽  
pp. 214-227 ◽  
Author(s):  
Juliette Fauchot ◽  
François J. Saucier ◽  
Maurice Levasseur ◽  
Suzanne Roy ◽  
Bruno Zakardjian
Keyword(s):  
River Plume ◽  
Alexandrium Tamarense ◽  
Lawrence Estuary ◽  
Plume Dynamics ◽  
St Lawrence Estuary ◽  
Modeling Study

scholarly journals Rapid changes in river plume dynamics caused by advected wind‐driven coastal upwelling as observed in Lake Geneva

2021 ◽  
Author(s):  
Frédéric Soulignac ◽  
Ulrich Lemmin ◽  
Seyed Mahmood Hamze Ziabari ◽  
Htet Kyi Wynn ◽  
Benjamin Graf ◽  
...  
Keyword(s):  
Coastal Upwelling ◽  
River Plume ◽  
Lake Geneva ◽  
Plume Dynamics ◽  
Rapid Changes
Sign in / Sign up

Export Citation Format

Share Document