A hydrographic survey consisting of Rosette/CTD/LADCP sections, trace metals rosette sections, underway shipboard ADCP and float deployments in the southern Indian Ocean nominally along 32°S was carried out during early 2009. The R/V Revelle departed Cape Town, South Africa on 20 March 2009. A total of 195 stations were occupied. 195 Rosette/CTD/LADCP casts, and 87 Trace Metals Rosette casts were made, and 19 ARGO floats were deployed from 25 March to 12 May 2009. Water samples (up to 36 depths) and CTD data were collected on each Rosette/CTD/LADCP cast, usually made to within 20 meters of the bottom. Salinity, dissolved oxygen and nutrient samples were analyzed for up to 36 water samples from each cast of the principal Rosette/CTD/LADCP program. Water samples were also measured for DIC, pH, Total Alkalinity, and CFCs and samples were collected for DOC/TDN, Helium/Tritium, and ¹³C/¹⁴C. Underway surface pCO₂, temperature, conductivity, dissolved oxygen, fluorometer, meteorological and acoustical bathymetric measurements were made. The cruise ended in Fremantle, Australia on 13 May 2009.

Carbon Data
CTD and other hydrographic data
Section designation:  I05
Chief Scientists: James H. Swift and Gregory C. Johnson
Dates: 20 MAR 2009 to 13 MAY 2009
Ship: R/V Roger Revelle
Ports of call: Cape Town, South Africa, to Fremantle, Australia
Stations: 195
Geographic boundaries 30° 22.8' S to 34° 48.01' S by 30° 19.67' E to 114° 50.72' E