Sea breeze forcing of estuary turbulence and air-water CO2 exchange

The sea breeze is often a dominant meteorological feature at the coastline, but little is known about its estuarine impacts. Measurements at an anchored catamaran and meteorological stations along the Hudson River and New York Bay estuarine system are used to illustrate some basic characteristics an...

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Bibliographic Details
Published in:Geophysical research letters 2010-07, Vol.37 (13), p.n/a
Main Authors: Orton, Philip M., McGillis, Wade R., Zappa, Christopher J.
Format: Article
Language:English
Subjects:
air-sea fluxes
Atmospheric sciences
Biological oceanography
Brackish
Carbon dioxide
Chemical oceanography
Earth sciences
Earth, ocean, space
Estuaries
Exact sciences and technology
Fluid flow
Flux
Marine
Observational studies
Oceanography
Physical oceanography
Sea breezes
Spring tides
Stations
Turbulence
Turbulent flow
Water column
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Summary:The sea breeze is often a dominant meteorological feature at the coastline, but little is known about its estuarine impacts. Measurements at an anchored catamaran and meteorological stations along the Hudson River and New York Bay estuarine system are used to illustrate some basic characteristics and impacts of the feature. The sea breeze propagates inland, arriving in phase with peak solar forcing at seaward stations, but several hours later at up‐estuary stations. Passage of the sea breeze front raises the water‐to‐air CO2 flux by 1–2 orders of magnitude, and drives turbulence comparable to spring tide levels in the upper meter of the water column, where most primary productivity occurs in this highly turbid system. Modeling and observational studies often use remotely‐measured winds to compute air‐water fluxes (e.g., momentum, CO2), and this leads to a factor of two flux error on sea breeze days during the study.
ISSN:0094-8276
1944-8007
DOI:10.1029/2010GL043159