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

2013 ◽  
Vol 43 (9) ◽  
pp. 1959-1980 ◽  
Author(s):  
Gregory P. Gerbi ◽  
Robert J. Chant ◽  
John L. Wilkin

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.



2013 ◽  
Vol 47 (17) ◽  
pp. 9808-9815 ◽  
Author(s):  
Daniel R. Obenour ◽  
Donald Scavia ◽  
Nancy N. Rabalais ◽  
R. Eugene Turner ◽  
Anna M. Michalak


1992 ◽  
Vol 97 (C2) ◽  
pp. 2403 ◽  
Author(s):  
Ann K. Masse ◽  
C. R. Murthy


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


2010 ◽  
Vol 55 (6) ◽  
pp. 2487-2502 ◽  
Author(s):  
Derek D. Wright ◽  
Thomas K. Frazer ◽  
John R. Reinfelder




Harmful Algae ◽  
2008 ◽  
Vol 7 (2) ◽  
pp. 214-227 ◽  
Author(s):  
Juliette Fauchot ◽  
François J. Saucier ◽  
Maurice Levasseur ◽  
Suzanne Roy ◽  
Bruno Zakardjian


2008 ◽  
Vol 244 ◽  
pp. 1048-1062 ◽  
Author(s):  
Mark Cobb ◽  
Timothy R. Keen ◽  
Nan D. Walker


2021 ◽  
Author(s):  
Frédéric Soulignac ◽  
Ulrich Lemmin ◽  
Seyed Mahmood Hamze Ziabari ◽  
Htet Kyi Wynn ◽  
Benjamin Graf ◽  
...  


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