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Direct measurements of CO 2 flux in the Greenland Sea
Author(s) -
Lauvset Siv K.,
McGillis Wade R.,
Bariteau Ludovic,
Fairall C. W.,
Johannessen Truls,
Olsen Are,
Zappa Christopher J.
Publication year - 2011
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 - 10.1029/2011gl047722
Subject(s) - flux (metallurgy) , magnitude (astronomy) , detector , geodesy , environmental science , physics , cross correlation , atmospheric sciences , climatology , geology , optics , statistics , chemistry , mathematics , astronomy , organic chemistry
During summer 2006 eddy correlation CO 2 fluxes were measured in the Greenland Sea using a novel system set‐up with two shrouded LICOR‐7500 detectors. One detector was used exclusively to determine, and allow the removal of, the bias on CO 2 fluxes due to sensor motion. A recently published correction method for the CO 2 ‐H 2 O cross‐correlation was applied to the data set. We show that even with shrouded sensors the data require significant correction due to this cross‐correlation. This correction adjusts the average CO 2 flux by an order of magnitude from −6.7 × 10 −2 mol m −2 day −1 to −0.61 × 10 −2 mol m −2 day −1 , making the corrected fluxes comparable to those calculated using established parameterizations for transfer velocity.