Details
| Original language | English |
|---|---|
| Article number | 1447316 |
| Journal | Frontiers in Marine Science |
| Volume | 12 |
| Publication status | Published - 21 Feb 2025 |
Abstract
Reynolds stresses and Turbulent Kinetic Energy (TKE) are instrumental in quantifying the turbulent dynamics that govern mixing and momentum transport in estuaries, factors crucial for understanding and managing estuarine circulation, water quality, and sediment transport. Employing Acoustic Doppler Current profilers, this study investigated hydrodynamics and turbulence in the Brisbane River, Australia. Measurements were conducted at two locations, covering the mouth and middle reach of the estuary. Of particular interest were flow reversals during flood flows, adding complexity to the turbulent dynamics. Reynolds stresses at site I were primarily generated by bed shear, while site II showed more complex stresses due to density differences and lateral circulations. At the river mouth, the mixed semidiurnal tidal regime led to a highly variable turbulent regime, with subsequent flood and ebb events exhibiting markedly different characteristics.
Keywords
- ADCP, estuary, reynolds stresses, TKE, turbulence
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Oceanography
- Environmental Science(all)
- Global and Planetary Change
- Agricultural and Biological Sciences(all)
- Aquatic Science
- Environmental Science(all)
- Water Science and Technology
- Environmental Science(all)
- Environmental Science (miscellaneous)
- Engineering(all)
- Ocean Engineering
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In: Frontiers in Marine Science, Vol. 12, 1447316, 21.02.2025.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Turbulence and mixing variability in a microtidal estuary subject to mixed semidiurnal tidal cycles
AU - Tiede, Jan
AU - Cossu, Remo
AU - Visscher, Jan
AU - Grinham, Alistair
AU - Schlurmann, Torsten
N1 - Publisher Copyright: Copyright © 2025 Tiede, Cossu, Visscher, Grinham and Schlurmann.
PY - 2025/2/21
Y1 - 2025/2/21
N2 - Reynolds stresses and Turbulent Kinetic Energy (TKE) are instrumental in quantifying the turbulent dynamics that govern mixing and momentum transport in estuaries, factors crucial for understanding and managing estuarine circulation, water quality, and sediment transport. Employing Acoustic Doppler Current profilers, this study investigated hydrodynamics and turbulence in the Brisbane River, Australia. Measurements were conducted at two locations, covering the mouth and middle reach of the estuary. Of particular interest were flow reversals during flood flows, adding complexity to the turbulent dynamics. Reynolds stresses at site I were primarily generated by bed shear, while site II showed more complex stresses due to density differences and lateral circulations. At the river mouth, the mixed semidiurnal tidal regime led to a highly variable turbulent regime, with subsequent flood and ebb events exhibiting markedly different characteristics.
AB - Reynolds stresses and Turbulent Kinetic Energy (TKE) are instrumental in quantifying the turbulent dynamics that govern mixing and momentum transport in estuaries, factors crucial for understanding and managing estuarine circulation, water quality, and sediment transport. Employing Acoustic Doppler Current profilers, this study investigated hydrodynamics and turbulence in the Brisbane River, Australia. Measurements were conducted at two locations, covering the mouth and middle reach of the estuary. Of particular interest were flow reversals during flood flows, adding complexity to the turbulent dynamics. Reynolds stresses at site I were primarily generated by bed shear, while site II showed more complex stresses due to density differences and lateral circulations. At the river mouth, the mixed semidiurnal tidal regime led to a highly variable turbulent regime, with subsequent flood and ebb events exhibiting markedly different characteristics.
KW - ADCP
KW - estuary
KW - reynolds stresses
KW - TKE
KW - turbulence
UR - http://www.scopus.com/inward/record.url?scp=86000313855&partnerID=8YFLogxK
U2 - 10.3389/fmars.2025.1447316
DO - 10.3389/fmars.2025.1447316
M3 - Article
AN - SCOPUS:86000313855
VL - 12
JO - Frontiers in Marine Science
JF - Frontiers in Marine Science
SN - 2296-7745
M1 - 1447316
ER -