@article{fdi:010052862, title = {{S}ea water fugacity of {CO}2 at the {PIRATA} mooring at 6 degrees {S}, 10 degrees {W}}, author = {{P}arard, {G}. and {L}ef{\`e}vre, {N}athalie and {B}outin, {J}.}, editor = {}, language = {{ENG}}, abstract = {{I}n order to better understand the variability of surface {CO}2 in the {T}ropical {A}tlantic, a {CARIOCA} sensor has been installed on a {PIRATA} mooring at 6 degrees {S}, 10 degrees {W} in {J}une 2006. {T}he fugacity of {CO}2 (f{CO}(2)) is recorded hourly from 7 {J}une 2006 to 30 {O}ctober 2009 with two important data gaps. {F}rom {J}uly to {S}eptember, an upwelling develops and a decrease in sea surface temperature ({SST}) is observed, associated with an f{CO}(2) increase. {H}owever, the highest f{CO}(2) is observed in {O}ctober, after the upwelling season, due to the warming of surface waters. {T}he region is a net source of {CO}2 to the atmosphere of 2.10 +/- 0.69 mol m-2 yr-1 in 2007. {T}he monthly flux is maximum (3.21 +/- 0.8 mol m-2 yr-1) in {N}ovember (averaged over 2006 and 2008). {H}igh frequency variability is observed throughout the time series but is particularly pronounced after the upwelling season. {B}iological and thermodynamic processes explain the diurnal variability. {D}issolved inorganic carbon ({DIC}) is calculated from (alkalinity) {TA} and f{CO}(2) using an empirical {TA}-salinity relationship determined for the eastern equatorial {A}tlantic. {N}et community production ({NCP}) is calculated from {DIC} daily changes and ranges from 9 to 41 mmol m-2 d-1, which is consistent with previous measurements in this region.}, keywords = {}, booktitle = {}, journal = {{T}ellus {S}eries {B}. {C}hemical and {P}hysical {M}eteorology}, volume = {62}, numero = {5}, pages = {636--648}, ISSN = {0280-6509}, year = {2010}, DOI = {10.1111/j.1600-0889.2010.00503.x}, URL = {https://www.documentation.ird.fr/hor/fdi:010052862}, }