Influence of current velocity and wind speed on air-water gas exchange in a mangrove estuary

David T. Ho; Nathalie Coffineau; Benjamin Hickman; Nicholas Chow; Tobias Koffman; Peter Schlosser

doi:10.1002/2016GL068727

Influence of current velocity and wind speed on air-water gas exchange in a mangrove estuary

David T. Ho, Nathalie Coffineau, Benjamin Hickman, Nicholas Chow, Tobias Koffman, Peter Schlosser

Research output: Contribution to journal › Article › peer-review

59 Scopus citations

Abstract

Knowledge of air-water gas transfer velocities and water residence times is necessary to study the fate of mangrove derived carbon exported into surrounding estuaries and ultimately to determine carbon balances in mangrove ecosystems. For the first time, the ³He/SF₆ dual tracer technique, which has been proven to be a powerful tool to determine gas transfer velocities in the ocean, is applied to Shark River, an estuary situated in the largest contiguous mangrove forest in North America. The mean gas transfer velocity was 3.3 ± 0.2 cm h^-1 during the experiment, with a water residence time of 16.5 ± 2.0 days. We propose a gas exchange parameterization that takes into account the major sources of turbulence in the estuary (i.e., bottom generated shear and wind stress).

Original language	English (US)
Pages (from-to)	3813-3821
Number of pages	9
Journal	Geophysical Research Letters
Volume	43
Issue number	8
DOIs	https://doi.org/10.1002/2016GL068727
State	Published - Apr 28 2016
Externally published	Yes

Keywords

He/SF
gas transfer velocity
mangrove estuary
residence time

ASJC Scopus subject areas

Geophysics
General Earth and Planetary Sciences

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10.1002/2016GL068727

Cite this

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title = "Influence of current velocity and wind speed on air-water gas exchange in a mangrove estuary",

abstract = "Knowledge of air-water gas transfer velocities and water residence times is necessary to study the fate of mangrove derived carbon exported into surrounding estuaries and ultimately to determine carbon balances in mangrove ecosystems. For the first time, the 3He/SF6 dual tracer technique, which has been proven to be a powerful tool to determine gas transfer velocities in the ocean, is applied to Shark River, an estuary situated in the largest contiguous mangrove forest in North America. The mean gas transfer velocity was 3.3 ± 0.2 cm h-1 during the experiment, with a water residence time of 16.5 ± 2.0 days. We propose a gas exchange parameterization that takes into account the major sources of turbulence in the estuary (i.e., bottom generated shear and wind stress).",

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T1 - Influence of current velocity and wind speed on air-water gas exchange in a mangrove estuary

AU - Ho, David T.

AU - Coffineau, Nathalie

AU - Hickman, Benjamin

AU - Chow, Nicholas

AU - Koffman, Tobias

AU - Schlosser, Peter

PY - 2016/4/28

Y1 - 2016/4/28

N2 - Knowledge of air-water gas transfer velocities and water residence times is necessary to study the fate of mangrove derived carbon exported into surrounding estuaries and ultimately to determine carbon balances in mangrove ecosystems. For the first time, the 3He/SF6 dual tracer technique, which has been proven to be a powerful tool to determine gas transfer velocities in the ocean, is applied to Shark River, an estuary situated in the largest contiguous mangrove forest in North America. The mean gas transfer velocity was 3.3 ± 0.2 cm h-1 during the experiment, with a water residence time of 16.5 ± 2.0 days. We propose a gas exchange parameterization that takes into account the major sources of turbulence in the estuary (i.e., bottom generated shear and wind stress).

AB - Knowledge of air-water gas transfer velocities and water residence times is necessary to study the fate of mangrove derived carbon exported into surrounding estuaries and ultimately to determine carbon balances in mangrove ecosystems. For the first time, the 3He/SF6 dual tracer technique, which has been proven to be a powerful tool to determine gas transfer velocities in the ocean, is applied to Shark River, an estuary situated in the largest contiguous mangrove forest in North America. The mean gas transfer velocity was 3.3 ± 0.2 cm h-1 during the experiment, with a water residence time of 16.5 ± 2.0 days. We propose a gas exchange parameterization that takes into account the major sources of turbulence in the estuary (i.e., bottom generated shear and wind stress).

KW - He/SF

KW - gas transfer velocity

KW - mangrove estuary

KW - residence time

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Influence of current velocity and wind speed on air-water gas exchange in a mangrove estuary

Abstract

Keywords

ASJC Scopus subject areas

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