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Dissolved oxygen, temperature, salinity, and other variables measured and calculated from profile observations using CTD and other instruments from the NOAA Ship Ronald H. Brown in the Gulf of Mexico during the fourth Gulf of Mexico Ecosystems and Carbon Cycle (GOMECC-4) cruise from 2021-09-13 to 2021-10-21 (NCEI Accession 0284051)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: October 04, 2025 | Last Modified: 2023-10-20T00:00:00.000+00:00
The fourth Gulf of Mexico Ecosystems and Carbon Cycle (GOMECC-4) Cruise took place on board the NOAA Ship Ronald H. Brown, from September 13–October 21, 2021. The cruise departed from Key West, FL into the Gulf of Mexico and then around the coastal waters of the Gulf of Mexico in a counter-clockwise direction, ending in St. Petersburg, FL. The effort was in support of the coastal monitoring and research objectives of the NOAA Ocean Acidification Program (OAP). The cruise was designed to obtain a snapshot of key carbon, physical, biogeochemical and biological parameters as they relate to ocean acidification (OA) in the coastal realm. This was the fourth occupation of the Gulf of Mexico as part of OAP’s monitoring efforts in the region, with the previous ones occurring in 2007, 2012, and 2017. The cruise included a series of 15 transects approximately orthogonal to coast of the Gulf of Mexico and a 16th partial transect along the 27°N line, between Florida and the Bahamas, as well as a comprehensive set of underway measurements. This dataset includes the processed, 1db-binned CTD profile data collected in the 141 stations.

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0284051 DISSOLVED OXYGEN HYDROSTATIC PRESSURE Potential temperature (theta) SALINITY WATER DENSITY WATER TEMPERATURE CTD salinometer temperature sensor chemical discrete sample physical profile NOAA Ship Ronald H. Brown NOAA Atlantic Oceanographic and Meteorological Laboratory NOAA Atlantic Oceanographic and Meteorological Laboratory US DOC; NOAA; Office of Oceanic and Atmospheric Research; Ocean Acidification Program (OAP) Gulf of Mexico North Atlantic Ocean oceanography DOC/NOAA/OAR/AOML > Atlantic Oceanographic and Meteorological Laboratory, OAR, NOAA, U.S. Department of Commerce RB21-03 33RO20210913 Ocean Acidification Program (OAP) Ocean Carbon and Acidification Data System (OCADS) Project GOMECC-4 EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > POTENTIAL TEMPERATURE EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY Profile ga ht ox pr sa te th CTD > Conductivity, Temperature, Depth SALINOMETERS TEMPERATURE SENSORS > TEMPERATURE SENSORS Ships Ronald H. Brown (call sign: WTEC, ICES code: 33RO, 1997-) OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO Gulf of Mexico North Atlantic Ocean

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