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Coastal upwelling air‐sea fluxes revealed in atmospheric observations of O 2 /N 2 , CO 2 and N 2 O
Author(s) -
Lueker Timothy J.,
Walker Stephen J.,
Vollmer Martin K.,
Keeling Ralph F.,
Nevison Cynthia D.,
Weiss Ray F.,
Garcia Hernan E.
Publication year - 2003
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2002gl016615
Subject(s) - upwelling , oceanography , buoy , environmental science , flux (metallurgy) , water column , geology , atmospheric sciences , climatology , chemistry , organic chemistry
We capture water column ventilation resulting from coastal upwelling in continuous records of O 2 /N 2 , CO 2 , and N 2 O at Trinidad, California. Our records reveal the gas exchange response time of the ocean to the upwelling and ensuing biological production. Satellite and buoy wind data allow extrapolation of our records to assess coastal upwelling air‐sea fluxes of O 2 and N 2 O. We improve on previous regional estimates of N 2 O flux in coastal and continental shelf region of the western U.S. We characterize the source of N 2 O as being predominately from nitrification based on the O 2 /N 2 O emissions ratio observed in our atmospheric records.