Figure 9From: Water-air CO2 fluxes in the Tagus estuary plume (Portugal) during two distinct winter episodes Correlations between parameters. Distributions of (A) calculated CO2 partial pressure (pCO2), (B) dissolved oxygen (DO), (C) chlorophyll a (Chl a), (D) total alkalinity (TA), (E) calculated dissolved inorganic carbon (DIC), and (F) pH along the salinity gradient, and of (G) DIC versus NO3 for Tagus coastal area during March 2001 and February 2004. End-member mixing line is represented by the dotted line.Back to article page