A hydrographic survey consisting of a meridional LADCP/CTD/rosette section in the western South Atlantic was carried out in January-February 2005. The R/V Ronald H. Brown departed Punta Arenas, Chile on 11 January 2005. A total of 121 LADCP/CTD/Rosette stations were occupied, and 12 Argos floats and 11 drifters were deployed from 17 January-21 February. Water samples (up to 36), LADCP, CTD and bio-optical data were collected on each cast to within 20 m of the bottom. Salinity, dissolved oxygen, and nutrient samples were analyzed from every bottle sampled on the rosette. Other parameters from the bottles were sampled at a lower density. The cruise ended in Fortaleza, Brazil on 24 February 2005. This report describes the participants and details of sampling and analytical methodologies of all projects.

Carbon Data
CTD and other hydrographic data
WOCE section designation:  A16S_2005a
Co-Chief Scientists Dr. Rik Wanninkhof and Dr. Scott Doney
Dates 2005 JAN 11 - 2005 FEB 24
Ship R/V RONALD H. BROWN
Ports of call Punta Arenas, Chile - Fortaleza, Brazil
Geographic boundaries: 2° 20.01' S to 60° 0.94' S by 36° 22.98' W to  24° 59.71' W