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CTD, elemental (C/N ratios) and isotopic (13C, 15N) data collected from R/V Endeavor cruise EN496 in the northern Gulf of Mexico from 2011-07-03 to 2011-07-26 (NCEI Accession 0183542)

Published by NOAA National Centers for Environmental Information | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 03, 2026 at 03:17 AM | Dataset Last Updated: December 18, 2018 at 12:00 AM
This dataset contains CTD, water quality and particle and zooplankton sample elemental (total C and N, C/N ratio) and isotopic (delta 13C, delta 15N) data collected during R/V Endeavor cruise EN496 in the northern Gulf of Mexico from 2011-07-03 to 2011-07-26. Particle and zooplankton samples were collected during cruise EN496 using a CTD-rosette and a MOCNESS. The objectives were to collect water column and benthic samples in the vicinity of the Mississippi River Plume, as well as, at/near active seeps. Elemental and isotopic data were collected at 18 stations, while CTD profiles were done at 51 locations. Elemental and isotopic data includes the delta 13C and 15N, total Nitrogen and Carbon and the C/N ratio. Hydrographic data was collected using a Sea-Bird SBE-9 and the data includes temperature, salinity, oxygen concentration, sound velocity, beam attenuation and transmission, sea level, Photosynthetically Active Radiation (PAR), fluorescence and surface irradiance.

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0183542 Attenuation/Transmission BEAM ATTENUATION COEFFICIENT CONDUCTIVITY DELTA CARBON-13 DELTA NITROGEN-15 DEPTH - SENSOR FLUORESCENCE

Complete Metadata
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identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/accessions/iso/xml/0183542.xml
issued 2018-12-18T00:00:00.000+00:00
keyword 
[
  "0183542",
  "Attenuation/Transmission",
  "BEAM ATTENUATION COEFFICIENT",
  "CONDUCTIVITY",
  "DELTA CARBON-13",
  "DELTA NITROGEN-15",
  "DEPTH - SENSOR",
  "FLUORESCENCE",
  "HYDROSTATIC PRESSURE",
  "LATITUDE",
  "LONGITUDE",
  "Potential temperature (theta)",
  "SALINITY",
  "SOUND VELOCITY",
  "surface irradiance",
  "TOTAL CARBON",
  "Total nitrogen",
  "WATER DENSITY",
  "water depth",
  "WATER LEVEL",
  "WATER TEMPERATURE",
  "CTD",
  "fluorometer",
  "Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS)",
  "oxygen sensor",
  "PAR Sensor",
  "in situ",
  "laboratory analyses",
  "profile",
  "water chemistry",
  "GRIIDC",
  "Deepwater Horizon oil spill event (DWH)",
  "Gulf of Mexico Research Initiative (GoMRI)",
  "Gulf of Mexico Research Initiative Information & Data Cooperative (GRIIDC)",
  "Coastal Waters of Gulf of Mexico",
  "Gulf of Mexico",
  "North Atlantic Ocean",
  "oceanography",
  "EN496",
  "EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH",
  "EARTH SCIENCE > OCEANS > OCEAN ACOUSTICS > ACOUSTIC VELOCITY",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON",
  "EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN",
  "EARTH SCIENCE > OCEANS > OCEAN OPTICS > ATTENUATION/TRANSMISSION",
  "EARTH SCIENCE > OCEANS > OCEAN OPTICS > FLUORESCENCE",
  "EARTH SCIENCE > OCEANS > OCEAN OPTICS > IRRADIANCE",
  "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 > CONDUCTIVITY",
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  "EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY",
  "Sea_water_potential_temperature",
  "Carbon to nitrogen ratio",
  "Irradiance",
  "Seawater level",
  "Stable isotopes",
  "Total elemental carbon",
  "Total elemental nitrogen",
  "CTD > Conductivity, Temperature, Depth",
  "FLUOROMETERS > FLUOROMETERS",
  "MOCNESS > MOCNESS Plankton Net",
  "OXYGEN METERS > OXYGEN METERS",
  "PAR SENSORS > Photosynthetically Active Radiation Sensors",
  "Altimeter",
  "CTD-rosette",
  "Chelsea Seatech Wetlab C-Star",
  "SPAR",
  "Sea-Bird SBE 43",
  "WET Labs ECO fluorometers",
  "R/V Endeavor",
  "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN",
  "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA",
  "OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO",
  "Northern Gulf of Mexico",
  "85FUJX"
]
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license https://creativecommons.org/publicdomain/zero/1.0/
modified 2018-12-18T00:00:00.000+00:00
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rights otherRestrictions
spatial -86.751,25.8612,-92.6042,29.2267
temporal 2011-07-03T00:00:00+00:00/2011-07-26T00:00:00+00:00
theme 
[
  "geospatial"
]
title CTD, elemental (C/N ratios) and isotopic (13C, 15N) data collected from R/V Endeavor cruise EN496 in the northern Gulf of Mexico from 2011-07-03 to 2011-07-26 (NCEI Accession 0183542)

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