Dataset Overview | National Centers for Environmental Information (NCEI)

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)

Preview graphic

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.

Dataset Citation

Cite as: Montoya, Joseph P. (2018). 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). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0183542. Accessed [date].

Dataset Identifiers

ISO 19115-2 Metadata

gov.noaa.nodc:0183542

Full Text · XML

Download Data	HTTPS (download) Navigate directly to the URL for data access and direct download. FTP (download) These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).
Distribution Formats	.csv .txt .xls .xml
Ordering Instructions	Contact NCEI for other distribution options and instructions.
Distributor	NOAA National Centers for Environmental Information +1-301-713-3277 NCEI.Info@noaa.gov
Dataset Point of Contact	NOAA National Centers for Environmental Information ncei.info@noaa.gov

Time Period	2011-07-03 to 2011-07-26
Spatial Bounding Box Coordinates	West: -92.6042 East: -86.751 South: 25.8612 North: 29.2267
Spatial Coverage Map

General Documentation

NCEI Dataset Landing Page
Navigate directly to the URL for a descriptive web page with download links.
Descriptive Information
Navigate directly to the URL for a descriptive web page with download links.

Associated Resources

CTD Hydrographic data from Cruise R/V Endeavor (EN496), Louisiana, Mississippi, Alabama Shelf Break, July 2011
- https://doi.org/10.7266/n7jm27nr (download)
  GRIIDC Data Webpage
Particle and zooplankton sample elemental (C,N) and isotopic (13C, 15N) data, cruise EN496, northern Gulf of Mexico, July 3-26, 2011
- https://doi.org/10.7266/N7S75DCR (download)
  GRIIDC Data Webpage
Hercules 265 Rapid Response: Immediate ecosystem impacts of a natural gas blowout incident
- https://doi.org/10.1016/j.dsr2.2015.11.010 (download)
  Online Library
Deep Water Horizon oil and methane carbon entered the food web in the Gulf of Mexico 61(S1), S387–S400
- https://doi.org/10.1002/lno.10440 (download)
  Online Library

Publication Dates	publication: 2018-12-18
Data Presentation Form	Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status	Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility
Data Update Frequency	As needed
Supplemental Information	Submission Package ID: 85FUJX Data Parameters and Units: Cruise id, station (or event number), latitude (decimal degrees), longitude (decimal degrees), bottle number, date (Month, Day, Year), time (local, HH:MM:SS); depth (meters), d15N (delta-15N: per mil deviation from atmospheric N2), d13C (delta-13C: per mil deviation from VPDB), C:N (carbon to nitrogen ratio), total Nitrogen (micromole); total Carbon (micromol), salinity (Sal00, Sal11, units = PSU), density (Sigma-t00, Sigma-t11, units = kg/m^3), oxygen concentration (OxsatML/L, Sbeox0ML/L, Sbeox1ML/L, units = ml/L), potential temperature (Potemp090C, Potemp190C, units = degrees C), sound velocity in water (SvCM, v1, units = m/s), scan (Scan), scan standard deviation (ScanSD), TimeJ, TimeJ-SD, time elapsed (TimeS, units = s), time elapsed standard deviation (TimeS-SD, units = s), pressure (PrDM, units = db), pressure standard deviation (PrDM-SD, units = db), depth (DepSM, units = m), depth standard deviation (DepSM, units = m), temperature ITS-90 (T090C, T190C, T2-T190C, units = degrees C), temperature ITS-90 standard deviation (T090C-SD, T190C-SD, T2-T190C-SD, units = degrees C), conductivity (C0S/m, C1S/m, C2-C1S/m, units = Siemens/meter), conductivity standard deviation (C0S/m-SD, C1S/m-SD, C2-C1S/m-SD, units = Siemens/meter), voltage (V0, V2, V3, V4, V5, V7), voltage standard deviation (V0-SD, V2-SD, V3-SD, V4-SD, V5-SD), beam attenuation (BAT, Chelsea/Seatech/Wetlab CStar, units = 1/m), beam attenuation standard deviation (BAT-SD, units = 1/m), beam transmission (Xmiss, Chelsea/Seatech/Wetlab CStar, units = 1/m), beam transmission standard deviation (Xmiss -SD, units = 1/m), altimeter (AltM, units = m), altimeter standard deviation (AltM, units = m), Photosynthetically Active Radiation (PAR, units = microEinsteins/ m^2.s), PAR standard deviation (Par-SD, units = microEinsteins/ m^2.s), Oxygen (Sbeox0V, Sbeox1V, units = volts), Oxygen standard deviation (Sbeox0V, Sbeox1V, units = volts), fluorescence (FlECO-AFL, Wetlab ECO-AFL/FL, units = mg/m^3), fluorescence standard deviation (FlECO-AFL-SD, Wetlab ECO-AFL/FL, units = mg/m^3), surface irradiance (Spar, units = microEinsteins/m^2.s), surface irradiance standard deviation (Spar-SD, units = microEinsteins/m^2.s). Cruise ID: EN496
Purpose	The purpose of this cruise was to study the interactions between the Mississippi Plume and offshore waters of the Gulf of Mexico.
Use Limitations	accessLevel: Public Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.

Dataset Citation	Cite as: Montoya, Joseph P. (2018). 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). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0183542. Accessed [date].
Cited Authors	Montoya, Joseph P. Georgia Tech; School of Biology
Resource Providers	Inia M. SotoRamos Gulf of Mexico Research Initiative Information & Data Cooperative (GRIIDC) Gulf of Mexico Research Initiative Information & Data Cooperative (GRIIDC)
Points of Contact	Joseph P. Montoya Georgia Institute of Technology / Department of Biology
Publishers	NOAA National Centers for Environmental Information
Acknowledgments	Related Funding Agency: Gulf of Mexico Research Initiative (GoMRI) Related Funding Agency: Gulf of Mexico Research Initiative Information & Data Cooperative (GRIIDC)

Theme keywords	NODC DATA TYPES THESAURUS 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 NODC OBSERVATION TYPES THESAURUS in situ laboratory analyses profile water chemistry WMO_CategoryCode oceanography Global Change Master Directory (GCMD) Science Keywords 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 EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY NetCDF Climate and Forecast (CF) Metadata Convention Standard Name Table Sea_water_potential_temperature Provider Keywords Carbon to nitrogen ratio Irradiance Seawater level Stable isotopes Total elemental carbon Total elemental nitrogen
Data Center keywords	NODC SUBMITTING INSTITUTION NAMES THESAURUS Gulf of Mexico Research Initiative Information & Data Cooperative
Platform keywords	Provider Platform Names R/V Endeavor
Instrument keywords	NODC INSTRUMENT TYPES THESAURUS CTD fluorometer Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) oxygen sensor PAR Sensor Global Change Master Directory (GCMD) Instrument Keywords CTD > Conductivity, Temperature, Depth FLUOROMETERS > FLUOROMETERS MOCNESS > MOCNESS Plankton Net OXYGEN METERS > OXYGEN METERS PAR SENSORS > Photosynthetically Active Radiation Sensors Provider Instruments Altimeter CTD-rosette Chelsea Seatech Wetlab C-Star SPAR Sea-Bird SBE 43 WET Labs ECO fluorometers
Place keywords	NODC SEA AREA NAMES THESAURUS Coastal Waters of Gulf of Mexico Gulf of Mexico North Atlantic Ocean Global Change Master Directory (GCMD) Location Keywords OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO Provider Place Names Northern Gulf of Mexico
Project keywords	NODC PROJECT NAMES THESAURUS Deepwater Horizon oil spill event (DWH) Gulf of Mexico Research Initiative (GoMRI) Gulf of Mexico Research Initiative Information & Data Cooperative (GRIIDC)
Keywords	NCEI ACCESSION NUMBER 0183542

Use Constraints	Cite as: Montoya, Joseph P. (2018). 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). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0183542. Accessed [date].
Access Constraints	Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees	In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.

Lineage information for: dataset
Processing Steps	2018-12-18T19:52:13Z - NCEI Accession 0183542 v1.1 was published.
Output Datasets	NCEI Accession 0183542 v1.1 NCEI Accession 0183542 v1.1 (download) published 2018-12-18T19:52:13Z

Lineage information for: dataset
Processing Steps	Parameter or Variable: CONDUCTIVITY (measured); Units: Siemens/meter; Observation Category: in situ; Sampling Instrument: CTD. Parameter or Variable: LATITUDE (measured); Units: decimal degrees; Observation Category: in situ; Sampling Instrument: CTD. Parameter or Variable: LONGITUDE (measured); Units: decimal degrees; Observation Category: in situ; Sampling Instrument: CTD. Parameter or Variable: DEPTH - SENSOR (measured); Units: meter; Observation Category: in situ; Sampling Instrument: CTD. Parameter or Variable: DELTA CARBON-13 (measured); Units: parts per million; Observation Category: laboratory analysis; Sampling Instrument: Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS). Parameter or Variable: DELTA NITROGEN-15 (measured); Units: parts per million; Observation Category: laboratory analysis; Sampling Instrument: Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS). Parameter or Variable: carbon to nitrogen ratio (measured); Units: N; Observation Category: laboratory analysis; Sampling Instrument: Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS). Parameter or Variable: Total nitrogen (measured); Units: micromole; Observation Category: laboratory analysis; Sampling Instrument: Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS). Parameter or Variable: TOTAL CARBON (measured); Units: micromole; Observation Category: laboratory analysis; Sampling Instrument: Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS). Parameter or Variable: water depth (measured); Units: meter; Observation Category: laboratory analysis; Sampling Instrument: CTD. Parameter or Variable: WATER TEMPERATURE (measured); Units: degrees C; Observation Category: in situ; Sampling Instrument: CTD. Parameter or Variable: WATER DENSITY (measured); Units: kg/m^3; Observation Category: in situ; Sampling Instrument: CTD. Parameter or Variable: SALINITY (measured); Units: psu; Observation Category: in situ; Sampling Instrument: CTD. Parameter or Variable: oxygen concentration (measured); Units: ml/L; Observation Category: in situ; Sampling Instrument: CTD. Parameter or Variable: Potential temperature (theta) (measured); Units: degrees C; Observation Category: in situ; Sampling Instrument: CTD. Parameter or Variable: SOUND VELOCITY (measured); Units: m/s; Observation Category: in situ; Sampling Instrument: CTD. Parameter or Variable: PRESSURE - WATER [HYDROSTATIC PRESSURE] (measured); Units: dbar; Observation Category: in situ; Sampling Instrument: CTD. Parameter or Variable: BEAM ATTENUATION COEFFICIENT (measured); Units: 1/m; Observation Category: in situ; Sampling Instrument: Chelsea Seatech Wetlab C-Star. Parameter or Variable: Photosynthetically Active Radiation (PAR) (measured); Units: microEinsteins/ m^2.s; Observation Category: in situ; Sampling Instrument: PAR Sensor. Parameter or Variable: altimeter (measured); Units: m; Observation Category: in situ; Sampling Instrument: CTD. Parameter or Variable: FLUORESCENCE (measured); Units: mg/m^3; Observation Category: in situ; Sampling Instrument: fluorometer. Parameter or Variable: surface irradiance (measured); Units: microEinsteins/m^2.s; Observation Category: in situ; Sampling Instrument: Spar. Parameter or Variable: stable isotopes (measured); Units: N/A; Observation Category: laboratory analysis; Sampling Instrument: Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS).

Lineage information for: dataset

Processing Steps

Parameter or Variable: CONDUCTIVITY (measured); Units: Siemens/meter; Observation Category: in situ; Sampling Instrument: CTD.
Parameter or Variable: LATITUDE (measured); Units: decimal degrees; Observation Category: in situ; Sampling Instrument: CTD.
Parameter or Variable: LONGITUDE (measured); Units: decimal degrees; Observation Category: in situ; Sampling Instrument: CTD.
Parameter or Variable: DEPTH - SENSOR (measured); Units: meter; Observation Category: in situ; Sampling Instrument: CTD.
Parameter or Variable: DELTA CARBON-13 (measured); Units: parts per million; Observation Category: laboratory analysis; Sampling Instrument: Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS).
Parameter or Variable: DELTA NITROGEN-15 (measured); Units: parts per million; Observation Category: laboratory analysis; Sampling Instrument: Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS).
Parameter or Variable: carbon to nitrogen ratio (measured); Units: N; Observation Category: laboratory analysis; Sampling Instrument: Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS).
Parameter or Variable: Total nitrogen (measured); Units: micromole; Observation Category: laboratory analysis; Sampling Instrument: Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS).
Parameter or Variable: TOTAL CARBON (measured); Units: micromole; Observation Category: laboratory analysis; Sampling Instrument: Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS).
Parameter or Variable: water depth (measured); Units: meter; Observation Category: laboratory analysis; Sampling Instrument: CTD.
Parameter or Variable: WATER TEMPERATURE (measured); Units: degrees C; Observation Category: in situ; Sampling Instrument: CTD.
Parameter or Variable: WATER DENSITY (measured); Units: kg/m^3; Observation Category: in situ; Sampling Instrument: CTD.
Parameter or Variable: SALINITY (measured); Units: psu; Observation Category: in situ; Sampling Instrument: CTD.
Parameter or Variable: oxygen concentration (measured); Units: ml/L; Observation Category: in situ; Sampling Instrument: CTD.
Parameter or Variable: Potential temperature (theta) (measured); Units: degrees C; Observation Category: in situ; Sampling Instrument: CTD.
Parameter or Variable: SOUND VELOCITY (measured); Units: m/s; Observation Category: in situ; Sampling Instrument: CTD.
Parameter or Variable: PRESSURE - WATER [HYDROSTATIC PRESSURE] (measured); Units: dbar; Observation Category: in situ; Sampling Instrument: CTD.
Parameter or Variable: BEAM ATTENUATION COEFFICIENT (measured); Units: 1/m; Observation Category: in situ; Sampling Instrument: Chelsea Seatech Wetlab C-Star.
Parameter or Variable: Photosynthetically Active Radiation (PAR) (measured); Units: microEinsteins/ m^2.s; Observation Category: in situ; Sampling Instrument: PAR Sensor.
Parameter or Variable: altimeter (measured); Units: m; Observation Category: in situ; Sampling Instrument: CTD.
Parameter or Variable: FLUORESCENCE (measured); Units: mg/m^3; Observation Category: in situ; Sampling Instrument: fluorometer.
Parameter or Variable: surface irradiance (measured); Units: microEinsteins/m^2.s; Observation Category: in situ; Sampling Instrument: Spar.
Parameter or Variable: stable isotopes (measured); Units: N/A; Observation Category: laboratory analysis; Sampling Instrument: Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS).

Acquisition Information (collection)
Instrument	CTD fluorometer Multiple Opening/Closing Net and Environmental Sensing System (MOCNESS) oxygen sensor PAR Sensor

Last Modified: 2023-03-16T22:04:12Z
For questions about the information on this page, please email: ncei.info@noaa.gov

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)

Follow us

Contact us