This dataset includes chemical, meteorological, physical and underway - surface data collected from KNORR in the Andaman Sea or Burma Sea, Arabian Sea, Bay of Bengal, Gulf of Aden, Gulf of Oman, Indian Ocean, Laccadive Sea, Mozambique Channel and Persian Gulf (Gulf of Iran) from 1994-12-01 to 1996-01-21 and retrieved during cruise 316N145_10, 316N145_12, 316N145_13, 316N145_14, 316N145_5, 316N145_6, 316N145_7, 316N145_8 and 316N145_9. These data include BAROMETRIC PRESSURE, CARBON DIOXIDE - AIR, Partial pressure (or fugacity) of carbon dioxide, SALINITY and SEA SURFACE TEMPERATURE. The instruments used to collect these data include Carbon dioxide (CO2) gas analyzer and Shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement. These data were collected by Christopher L. Sabine of NOAA Pacific Marine Environmental Laboratory (PMEL) and Robert M. Key of Princeton University; Department of Geosciences; Program in Atmospheric and Ocean Sciences (AOS) as part of the WOCE I01, WOCE I02, WOCE I03, WOCE I04, WOCE I05E, WOCE I05W, WOCE I07N, WOCE I08N, WOCE I09N, WOCE I09S, WOCE I10 and WOCE_I8S dataset. The World Ocean Circulation Experiment (WOCE) was a major component of the World Climate Research Program with the overall goal of better understanding the ocean's role in climate and climatic changes resulting from both natural and anthropogenic causes. The CO2 survey took advantage of the sampling opportunities provided by the WOCE Hydrographic Program (WHP) cruises during this period between 1990 and 1998. The final collection covers approximately 23,000 stations from 94 WOCE cruises.