Dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, nutrients and other variables collected from profile and discrete samples observations during NOAA Ship Gordon Gunter cruise GU1902 (EXPOCODE 33GG20190815) in the North Atlantic Ocean, Gulf of Maine, Georges Bank, and Mid-Atlantic Bight from 2019-08-15 to 2019-08-30 (NCEI Accession 0209156)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: January 29, 2026 | Last Modified: 2021-07-30T00:00:00.000+00:00

This dataset contains dissolved inorganic carbon, total alkalinity, pH on total scale, nutrients and other variables measured from profile discrete observations during NOAA Ship Gordon Gunter cruise GU1902 (EXPOCODE 33GG20190815) in the North Atlantic Ocean, Gulf of Maine, Georges Bank, and Mid-Atlantic Bight from 2019-08-15 to 2019-08-30. Increasing amounts of atmospheric carbon dioxide from human industrial activities are causing changes in global ocean carbon chemistry ultimately resulting in a reduction in pH, a process termed ocean acidification. Studies have demonstrated adverse effects on calcifying organisms, particularly some invertebrates, corals, sea urchins, pteropods, and coccolithophores, but also on species of commercial interest such as oysters or crabs. In support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP), the Ecosystem Monitoring Cruises (ECOMON) are utilized to collect water samples to measure water column inorganic carbon and hydrographic parameters including nutrients. Samples are collected at three depths (surface, mid-depth and near bottom) at select stations on a quarterly basis in the northeastern Atlantic continental shelf region off the United States. Water samples were sent to and analyzed by scientists at the Atlantic Oceanographic and Meteorological Laboratory (AOML) for dissolved inorganic carbon, pH and total alkalinity concentrations. Additional samples are analyzed for nutrient concentrations at the University of Maine. These data are used to monitor short-long term coastal ocean acidification trends.

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description	This dataset contains dissolved inorganic carbon, total alkalinity, pH on total scale, nutrients and other variables measured from profile discrete observations during NOAA Ship Gordon Gunter cruise GU1902 (EXPOCODE 33GG20190815) in the North Atlantic Ocean, Gulf of Maine, Georges Bank, and Mid-Atlantic Bight from 2019-08-15 to 2019-08-30. Increasing amounts of atmospheric carbon dioxide from human industrial activities are causing changes in global ocean carbon chemistry ultimately resulting in a reduction in pH, a process termed ocean acidification. Studies have demonstrated adverse effects on calcifying organisms, particularly some invertebrates, corals, sea urchins, pteropods, and coccolithophores, but also on species of commercial interest such as oysters or crabs. In support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP), the Ecosystem Monitoring Cruises (ECOMON) are utilized to collect water samples to measure water column inorganic carbon and hydrographic parameters including nutrients. Samples are collected at three depths (surface, mid-depth and near bottom) at select stations on a quarterly basis in the northeastern Atlantic continental shelf region off the United States. Water samples were sent to and analyzed by scientists at the Atlantic Oceanographic and Meteorological Laboratory (AOML) for dissolved inorganic carbon, pH and total alkalinity concentrations. Additional samples are analyzed for nutrient concentrations at the University of Maine. These data are used to monitor short-long term coastal ocean acidification trends.
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identifier	gov.noaa.nodc:0209156
issued	2020-03-02T00:00:00.000+00:00
keyword	[ "0209156", "AMMONIA (NH3)", "DISSOLVED INORGANIC CARBON (DIC)", "nitrate + nitrite content (concentration)", "OXYGEN", "pH", "phosphate", "SALINITY", "SIGMA-THETA", "silicate", "total alkalinity", "WATER TEMPERATURE", "carbon dioxide (CO2) gas analyzer", "CTD", "Niskin bottle", "titrator", "chemical", "discrete sample", "physical", "profile", "NOAA Ship Gordon Gunter", "NOAA Atlantic Oceanographic and Meteorological Laboratory", "University of Maine", "NOAA Atlantic Oceanographic and Meteorological Laboratory", "US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP)", "Georges Bank", "Gulf of Maine", "Mid-Atlantic Bight", "North Atlantic Ocean", "oceanography", "DOC/NOAA/OAR/AOML > Atlantic Oceanographic and Meteorological Laboratory, OAR, NOAA, U.S. Department of Commerce", "UMAINE > University of Maine", "GU1902", "33GG20190815", "Ocean Acidification Program (OAP)", "Ocean Carbon and Acidification Data System (OCADS) Project", "Coastal", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA", "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 > PH", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE", "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE", "EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE", "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY", "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY", "Discrete measurement", "Profile", "AMMONIA", "CTDOXY", "CTDOXYmg", "CTDPRS", "CTDSAL", "CTDTMP", "DIC", "Depth_sampling", "Depth_station", "NITRIT+NITRAT", "Niskin_nuts", "PHSPHT", "SILCAT", "Sigma-Theta", "TAlk", "pH", "CO2 ANALYZERS > CO2 ANALYZERS", "CTD > Conductivity, Temperature, Depth", "NISKIN BOTTLES", "Ships", "GORDON GUNTER (call sign: WTEO, ICES code: 33GG, 1998-)", "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN", "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GEORGES BANK", "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MAINE", "Georges Bank", "Gulf of Maine", "Mid-Atlantic Bight", "North Atlantic Ocean" ]
landingPage	https://www.ncei.noaa.gov/contact
language	[]
license	https://creativecommons.org/publicdomain/zero/1.0/
modified	2021-07-30T00:00:00.000+00:00
publisher	{ "name": "NOAA National Centers for Environmental Information", "@type": "org:Organization" }
references	[ "https://www.ncei.noaa.gov/access/ocean-carbon-acidification-data-system/oceans/Coastal/Gordon_Gunter.html", "https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system" ]
rights	otherRestrictions
spatial	-65.44,37.705,-74.9517,43.405
temporal	2019-08-15T00:00:00+00:00/2019-08-30T00:00:00+00:00
title	Dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, nutrients and other variables collected from profile and discrete samples observations during NOAA Ship Gordon Gunter cruise GU1902 (EXPOCODE 33GG20190815) in the North Atlantic Ocean, Gulf of Maine, Georges Bank, and Mid-Atlantic Bight from 2019-08-15 to 2019-08-30 (NCEI Accession 0209156)