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Dissolved inorganic carbon, total alkalinity, nutrients, and other variables collected from profile and discrete observations during NOAA Ship Henry B. Bigelow cruise HB2501 (EXPOCODE 33HH20250214) in New York Bight, North Atlantic Ocean, Stellwagen Bank National Marine Sanctuary from 2025-02-15 to 2025-02-16 (NCEI Accession 0310546)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 03, 2026 at 05:14 AM | Dataset Last Updated: December 10, 2025 at 12:00 AM
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 are sent to and analyzed by scientists at the Atlantic Oceanographic & 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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0310546 AMMONIUM (NH4) DEPTH - OBSERVATION DISSOLVED INORGANIC CARBON (DIC) DISSOLVED OXYGEN nitrate + nitrite content (concentration) pH phosphate

Complete Metadata
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issued 2025-12-09T00:00:00.000+00:00
keyword 
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  "NOAA Atlantic Oceanographic and Meteorological Laboratory",
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modified 2025-12-10T00:00:00.000+00:00
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rights otherRestrictions
spatial -69.875,40.3117,-71.415,41.185
temporal 2025-02-15T00:00:00+00:00/2025-02-16T00:00:00+00:00
theme 
[
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title Dissolved inorganic carbon, total alkalinity, nutrients, and other variables collected from profile and discrete observations during NOAA Ship Henry B. Bigelow cruise HB2501 (EXPOCODE 33HH20250214) in New York Bight, North Atlantic Ocean, Stellwagen Bank National Marine Sanctuary from 2025-02-15 to 2025-02-16 (NCEI Accession 0310546)

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