This dataset is part of the long-term monitoring program OISO (Ocean Indien Service d'Observations) initiated in 1998, and covering contrasting regions in the South-West Indian Ocean from the subtropics to the Antarctic zone. It includes hydrological and biogeochemical measurements (temperature, salinity, oxygen, total CO2, alkalinity, nutrients, chlorophyll-a, d13C and d18O) collected in the water column (9 stations) using a rosette-CTD equipped with 24 Niskin bottles. Most of the samples were collected from the surface down to 1200m, except for 2 deep stations (down to the bottom at 30°S and 56.5°S). During the OISO-22 cruise we also collected underway fCO2 data (NCEI Accession 0116410), as well as underway total CO2 and alkalinity data (NCEI Accession 0173575) and complementary parameters collected in surface waters every 4h to 8h (nutrients, chlorophyll-a, d13C and d18O). The OISO data are regularly included in international data syntheses (SOCAT, GLODAP).

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, dissolved oxygen, nutrients and delta C13 obtained during the R/V Marion Dufresne cruise OISO-12 (EXPOCODE 35MF20050111) in the Indian Ocean from 2005-01-11 to 2005-02-22. These data were collected by Claire Lo Monaco and Nicolas Metzl of Sorbonne University (SU) as part of the CLIVAR_OISO12 dataset. The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, dissolved oxygen, and nutrients obtained during the R/V Marion Dufresne cruise OISO-18 (EXPOCODE 35MF20091219) in the Indian Ocean from 2009-12-19 to 2010-01-24. These data were collected by Claire Lo Monaco and Nicolas Metzl of Sorbonne University (SU) as part of the CLIVAR_OISO18 dataset. The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, dissolved oxygen and nutrients obtained during the R/V Marion Dufresne cruise OISO-05 (EXPOCODE 35MF20010103) in the Indian Ocean from 2000-07-19 to 2000-08-16. These data were collected by Claire Lo Monaco and Nicolas Metzl of Sorbonne University (SU) as part of the CLIVAR_OISO05 dataset. The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, dissolved oxygen and nutrients obtained during the R/V Marion Dufresne cruise OISO-03 (EXPOCODE 35MF19981205) in the Indian Ocean from 1998-12-05 to 1998-12-27. These data were collected by Claire Lo Monaco and Nicolas Metzl of Sorbonne University (SU) as part of the CLIVAR_OISO03 dataset. The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, dissolved oxygen and nutrients obtained during the R/V Marion Dufresne cruise OISO-04 (EXPOCODE 35MF20000117) in the Indian Ocean from 2000-01-17 to 2000-01-27. These data were collected by Claire Lo Monaco and Nicolas Metzl of Sorbonne University (SU) as part of the CLIVAR_OISO04 dataset. The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, dissolved oxygen, nutrients, delta C13 and delta O18 obtained during the R/V Marion Dufresne cruise OISO-02 (EXPOCODE 35MF19980818) in the Indian Ocean from 1998-08-18 to 1998-09-09. These data were collected by Claire Lo Monaco and Nicolas Metzl of Sorbonne University (SU) as part of the CLIVAR_OISO02 dataset. The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, dissolved oxygen and nutrients obtained during the R/V Marion Dufresne cruise OISO-06 (EXPOCODE 35MF20010103) in the Indian Ocean from 2001-01-03 to 2001-01-26. These data were collected by Claire Lo Monaco and Nicolas Metzl of Sorbonne University (SU) as part of the CLIVAR_OISO06 dataset. The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, dissolved oxygen, nutrients, delta C13 and delta O18 obtained during the R/V Marion Dufresne cruise OISO-01 (EXPOCODE 35MF19980121) in the Indian Ocean from 1998-01-21 to 1998-02-19. These data were collected by Claire Lo Monaco and Nicolas Metzl of Sorbonne University (SU) as part of the CLIVAR_OISO01 dataset. The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.

This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, dissolved oxygen and nutrients obtained during the R/V Marion Dufresne cruise OISO-08 (EXPOCODE 35MF20020104) in the Indian Ocean from 2002-01-04 to 2002-02-01. These data were collected by Claire Lo Monaco and Nicolas Metzl of Sorbonne University (SU) as part of the CLIVAR_OISO08 dataset. The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.