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Physical and biogeochemical CTD, ADCP, and towed vehicle data collected for the Mechanisms Controlling Hypoxia Project in the northern Gulf of Mexico from 2010-04-06 to 2014-08-12 (NCEI Accession 0240146)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: October 04, 2025 | Last Modified: 2021-08-17T00:00:00.000+00:00
The physical and biogeochemical processes that control and maintain the hypoxic zone in the northern Gulf of Mexico are complex and their relative strengths are known to vary temporally and spatially at many scales. The MCH Project was funded by NOAA from 2003-2016 and consisted of an integrated observational and numerical modeling approach to better understand the interactions of the physical, biological, and geochemical processes and their variability across the entire Texas/Louisiana shelf. This information contributes to a comprehensive description of the mechanisms that control hypoxia in the northern Gulf of Mexico. Environmental and oceanographic observations were recorded on 31 process-oriented research cruises and resulted in more than 120 towed transects, ~5000 CTD casts, ~30000 water samples, and more than 50000 km of ship flow-through system data. The data represented in this submission account for 15 research cruises and is the second of two submissions to NCEI; access to first submission is Accession 0088164.

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0240146 Chromophoric Dissolved Organic Matter (CDOM) DISSOLVED OXYGEN FLUORESCENCE hypoxia PHOTOSYNTHETIC ACTIVE RADIATION (PAR) SALINITY SIGMA-T turbidity WATER DENSITY water depth WATER TEMPERATURE ADCP CTD undulating towed profiler chemical in situ physical GYRE PELICAN Texas A&M Geochemical and Environmental Research Group NOAA National Centers for Environmental Information Gulf of Mexico Ecosystems and Hypoxia Assessment (NGOMEX) MECHANISMS CONTROLLING HYPOXIA ON THE LOUISIANA SHELF (MCH) Coastal Waters of Gulf of Mexico Coastal Waters of Texas Gulf of Mexico oceanography DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce TAMU/GERG > Geochemical & Environmental Research Group, Texas A&M University EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > HYPOXIA EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC MATTER EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN OPTICS > FLUORESCENCE EARTH SCIENCE > OCEANS > OCEAN OPTICS > PHOTOSYNTHETICALLY ACTIVE RADIATION EARTH SCIENCE > OCEANS > OCEAN OPTICS > TURBIDITY EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY Sea water Pressure Sea water velocity ADCP > Acoustic Doppler Current Profiler CTD > Conductivity, Temperature, Depth SCANFISH > SHIP-TOWED UNDULATING VEHICLE Ships GYRE (ICES code: 32GY) PELICAN (call sign: FNJF, ICES code: 35PC, 1967-1988) R/V Blazing 7 R/V Manta OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO T937RN

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