This dataset includes chemical, discrete sample, physical and profile data collected from Celtic Explorer in the North Atlantic Ocean from 2009-02-06 to 2012/01/10. These data include DISSOLVED INORGANIC CARBON (DIC), DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, NITRATE, NITRATE + NITRITE CONTENT (CONCENTRATION), NITRITE, PHOSPHATE, SALINITY, SILICATE, TOTAL ALKALINITY (TA) and WATER TEMPERATURE. The instruments used to collect these data include Alkalinity titrator, CTD, Coulometer for DIC measurement and bottle. These data were collected by Triona McGrath of Marine Institute and National University of Ireland, Galway, Evin McGovern and Evin McGovern of Marine Institute of Ireland (MI), and Caroline Kivimäe, Rachel R. Cave, Rachel R. Cave, and Triona McGrath of National University of Ireland - Galway as part of the COASTAL_Rockall_Trough_2009_2010 and COASTAL_Rockall_Trough_2011_2012 dataset. CDIAC assigned the following cruise ID(s) to this dataset: CE11001, CE12001 and COASTAL_Rockall_Trough. The Global Coastal Carbon Data Project data includes the bottle (discrete) and surface (underway) carbon-related measurements from coastal research cruises, the data from time series cruises and coastal moorings. The coastal regions data are very important for the understanding of carbon cycle on the continental margins. 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.