Accepted Manuscript On the variability in the CO2 system and water productivity in the western tropical Atlantic off North and Northeast Brazil Moacyr Araujo, Carlos Noriega, Carmen Medeiros, Nathalie Lefèvre, J. Severino P. Ibánhez, Manuel Flores Montes, Alex Costa da Silva, Maria de Lourdes Santos PII: S0924-7963(17)30038-6 DOI: doi:10.1016/j.jmarsys.2018.09.008 Reference: MARSYS 3123 To appear in: Journal of Marine Systems Received date: 25 January 2017 Revised date: 23 August 2018 Accepted date: 27 September 2018 Please cite this article as: Moacyr Araujo, Carlos Noriega, Carmen Medeiros, Nathalie Lefèvre, J. Severino P. Ibánhez, Manuel Flores Montes, Alex Costa da Silva, Maria de Lourdes Santos , On the variability in the CO2 system and water productivity in the western tropical Atlantic off North and Northeast Brazil. Marsys (2018), doi:10.1016/ j.jmarsys.2018.09.008 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.