TY - JOUR
T1 - High atmosphere-ocean exchange of organic carbon in the NE subtropical Atlantic
AU - Dachs, Jordi
AU - Calleja Cortes, Maria de Lluch
AU - Duarte, Carlos
AU - del Vento, Sabino
AU - Turpin, Barbara
AU - Polidori, Andrea
AU - Herndl, Gerhard J.
AU - Agusti, Susana
PY - 2005/11/16
Y1 - 2005/11/16
N2 - The air-sea exchange of organic carbon (OC) remains largely unexplored, except for few organic compounds comprising a small fraction of the total aerosol and gaseous OC in the atmosphere. Observations of high atmospheric concentrations and diffusive air-sea exchanges for such individual organic compounds, suggest that air-sea exchange of total OC may contribute significantly to the oceanic carbon budget. Here we quantify the atmosphere-ocean exchanges of total OC in the NE Subtropical Atlantic. Average net gaseous diffusive air-water fluxes averaged -31 and -25 mmol C m-2 d-1 for the spring and fall, respectively, exceeding measured OC inputs by dry aerosol deposition (FDDOC, -0.98 mmol C m-2 d-1) and net CO2 exchange (FCO2, -6.3 mmol C m-2 d-1). These fluxes are important to understand the regional carbon budget of the NE Subtropical Atlantic, and depict the atmosphere as a major dynamic vector for OC exchange with the ocean.
AB - The air-sea exchange of organic carbon (OC) remains largely unexplored, except for few organic compounds comprising a small fraction of the total aerosol and gaseous OC in the atmosphere. Observations of high atmospheric concentrations and diffusive air-sea exchanges for such individual organic compounds, suggest that air-sea exchange of total OC may contribute significantly to the oceanic carbon budget. Here we quantify the atmosphere-ocean exchanges of total OC in the NE Subtropical Atlantic. Average net gaseous diffusive air-water fluxes averaged -31 and -25 mmol C m-2 d-1 for the spring and fall, respectively, exceeding measured OC inputs by dry aerosol deposition (FDDOC, -0.98 mmol C m-2 d-1) and net CO2 exchange (FCO2, -6.3 mmol C m-2 d-1). These fluxes are important to understand the regional carbon budget of the NE Subtropical Atlantic, and depict the atmosphere as a major dynamic vector for OC exchange with the ocean.
UR - http://www.scopus.com/inward/record.url?scp=29344468247&partnerID=8YFLogxK
U2 - 10.1029/2005GL023799
DO - 10.1029/2005GL023799
M3 - Article
AN - SCOPUS:29344468247
SN - 0094-8276
VL - 32
SP - 1
EP - 4
JO - Geophysical Research Letters
JF - Geophysical Research Letters
IS - 21
M1 - L21807
ER -