Dissolved inorganic carbon, total alkalinity, pH on total scale and other variables collected from profile and discrete sample observations on NOAA Ship Fairweather (EXPOCODE 317W20130803) and R/V Point Sur (EXPOCODE 32P020130821) in the U.S. West Coast California Current System during the 2013 West Coast Ocean Acidification Cruise (WCOA2013) from 2013-08-03 to 2013-08-29 (NCEI Accession 0132082)

This dataset consists of measurements of dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, temperature, salinity, dissolved oxygen, nutrients and ammonium collected from the third dedicated West Coast Ocean Acidification cruises (EXPOCODEs: 317W20130803 and 32P020130821, Cruise IDs: WCOA2013), which took place aboard NOAA Ship Fairweather from 2013-08-03 to 2013-08-10, and aboard the R/V Point Sur on 2013-08-21 - 2013-08-29. Seventy-six stations were occupied from northern Washington to California along ten transect lines. At all stations, CTD casts were conducted, and discrete water samples were collected in Niskin bottles. The cruise was designed to obtain a synoptic snapshot of key carbon, physical, and biogeochemical parameters as they relate to ocean acidification (OA) in the coastal realm. During the cruise, some of the same transect lines were occupied as during the 2007, 2011, and 2012 West Coast Carbon cruises, as well as many CalCOFI stations. This effort was conducted in support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP). Leg 1 was surveyed on board NOAA Ship Fairweather from August 3 to 10, 2013. The original cruise names for Leg 1 are: WCOA-13, CC1-13-FA. Leg 2 was surveyed on board R/V Point Sur from August 21 to 29, 2013. The original cruise names for Leg 2 are: WCOA-13, CC2-13-PS. The instruments used to collect these data include Alkalinity titrator, CTD, Coulometer for DIC measurement, Niskin bottles and spectrophotometer.