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Dissolved inorganic carbon, total alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, Niskin bottle, and other instruments from NOAA Ship Bell M. Shimada in the U.S. West Coast California Current System from 2012-09-04 to 2012-09-17 (NCEI Accession 0123468)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 26, 2026 | Last Modified: 2015-01-07T00:00:00.000+00:00
This cruise represents the second dedicated West Coast Ocean Acidification cruise (WCOA2012), which took place September 4-17, 2012 aboard NOAA Ship Bell M. Shimada. Seventy-seven stations were occupied from northern Washington to southern California along fourteen 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 and 2011 West Coast Carbon cruise, 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).

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0123468 AMMONIA (NH3) CHLOROPHYLL A DISSOLVED INORGANIC CARBON (DIC) DISSOLVED OXYGEN HYDROSTATIC PRESSURE NITRATE NITRITE phosphate SALINITY silicate total alkalinity WATER TEMPERATURE coulometer for DIC measurement CTD fluorometer nutrient autoanalyzer oxygen sensor salinometer thermosalinograph titrator chemical discrete sample profile NOAA Ship Bell M. Shimada NOAA Northwest Fisheries Science Center NOAA Pacific Marine Environmental Laboratory Oregon State University University of South Florida NOAA Pacific Marine Environmental Laboratory NODC Ocean Acidification Scientific Data Stewardship (OADS) US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP) North Pacific Ocean West Coast - US/Canada oceanography DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/NMFS/NWFSC > Northwest Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce DOC/NOAA/OAR/PMEL > Pacific Marine Environmental Laboratory, OAR, NOAA, U.S. Department of Commerce WCOA2012 332220120904 Ocean Acidification Program (OAP) Ocean Carbon and Acidification Data System (OCADS) Project West Coast Ocean Acidification Cruise (WCOA) EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY Discrete measurement Profile Ammonia umol/kg Bot O2 (umol/kg) CTD OXY (umol/kg) CTD Salt CTD T degrees Celsius ITS-90 Chlorophyll a concentration ug/L DIC umol/kg Nitrate umol/kg Nitrite umol/kg Phosphate umol/kg Press (db) Silicate umol/kg TA umol/kg bot salt AUTOANALYZER > AUTOANALYZER COULOMETERS CTD > Conductivity, Temperature, Depth FLUOROMETERS > FLUOROMETERS OXYGEN METERS > OXYGEN METERS SALINOMETERS THERMOSALINOGRAPHS Ships Bell M. Shimada (call sign: WTED, ICES code: 3322, 2010-) OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN North Pacific Ocean U.S. West Coast California Current System

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