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Dataset Overview | National Centers for Environmental Information (NCEI)

CTD, water, and sediment chemistry data collected aboard R/V Endeavor cruise EN527 in the northern Gulf of Mexico from 2013-06-20 to 2013-07-03 (NCEI Accession 0210558)

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This dataset contains CTD, and water and sediment chemistry data collected aboard R/V Endeavor cruise EN527 in the northern Gulf of Mexico from 2013-06-20 to 2013-07-03. The CTD data were collected using a CTD-rosette system and includes binned profiles and bottle files along with the header files. The physical and chemical properties in the water column at the ECOGIG seep and other study sites were characterized. The water column and sediment chemistry data includes water column salinity, pH, concentration of dissolved nutrients, dissolved gases, total particulate nitrogen (TPN), total particulate carbon (TPC), particulate organic carbon (POC), and particulate inorganic carbon data acquired from 27 CTD casts and 11 multiple corer drops.

Dataset Citation

Cite as: Montoya, Joseph P.; Joye, Samantha B. (2020). CTD, water, and sediment chemistry data collected aboard R/V Endeavor cruise EN527 in the northern Gulf of Mexico from 2013-06-20 to 2013-07-03 (NCEI Accession 0210558). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0210558. Accessed [date].

Dataset Identifiers

ISO 19115-2 Metadata

gov.noaa.nodc:0210558

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Distribution Formats	Originator data format
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	2013-06-20 to 2013-07-03
Spatial Bounding Box Coordinates	West: -90.564117 East: -87.107 South: 27.361 North: 29.158
Spatial Coverage Map

General Documentation

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Descriptive Information
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Associated Resources

Joye, Samantha. (2016). R/V Endeavor: EN515 Water and Sediment Chemistry, Gulf of Mexico, September 7 - 15, 2012 [Data set]. Harte Research Institute. https://doi.org/10.7266/n7mw2f4w
- https://doi.org/10.7266/n7mw2f4w
  GRIIDC Data Webpage
Joseph Montoya. (2014). CTD data at deep water seeps, Cruise EN527, Northern Gulf of Mexico, June-July 2013 [Data set]. Harte Research Institute. https://doi.org/10.7266/n76971mh
- https://doi.org/10.7266/n76971mh
  GRIIDC Data Webpage
Rogener, M. K., Bracco, A., Hunter, K. S., Saxton, M. A., & Joye, S. B. (2018). Long-term impact of the Deepwater Horizon oil well blowout on methane oxidation dynamics in the northern Gulf of Mexico. Elementa: Science of the Anthropocene, 6. https://doi.org/10.1525/elementa.332
- https://doi.org/10.1525/elementa.332
  2018 DWH Paper

Publication Dates	publication: 2020-05-26
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	1. CTD Data: EN527-Bottlefiles-Flat - Cruise [EN527], Event [X.XX], Site [GC600, OC26, VK826, MC294, MC118, MC297, AT357, MC388, DC673, Shallow cast, Turbidity hunt, 2 on the line], Day [DD], Month [MM], Year [2013], Bottle [count], Date [date string], Time [HH:MM:SS], Sal00 (salinity [psu]), Sal11 (salinity [psu]), Sigma-t00 (Density sigma-theta [kg/m^3]), Sigma-t11 (Density sigma-theta [kg/m^3]), OxsatML/L (Oxygen saturation [ml/L]), Sbeox0Mm/Kg (Dissolved oxygen [mmol/kg]), Sbeox1Mm/Kg (Dissolved oxygen [mmol/kg]), Potemp090C (Potential temperature ITS-90 [degrees Celsius]), Potemp190C (Potential temperature ITS-90 [degrees Celsius]), SvCM (Sound velocity [m/s]), SvCM1 (Sound velocity [m/s]), Scan [count], Scan-SD [count] where SD is standard deviation error, TimeJ (Julian' Day-of-Year, [decimal days]), TimeJ-SD [decimal days], TimeS (Elapsed Time [seconds]), TimeS-SD [seconds], PrDM (Pressure, [dbar]), PrDM-SD [dbar], DepSM (Depth [m]), DepSM-SD [m], T090C (Temperature ITS-90 [degrees Celsius]), T090C-SD [degrees Celsius], T190C (Temperature ITS-90 [degrees Celsius]), T2-T190C (Temperature difference ITS-90 [degrees Celsius]), T190C-SD [degrees Celsius], C0S/m (Conductivity [S/m]), C0S/m-SD [S/m], C1S/m (Conductivity 2 [S/m]), C1S/m-SD [S/m], C2-C1S/m (Conductivity difference [S/m]), C2-C1S/m-SD [S/m], V0 (Voltage [V]), V0-SD [V], CStarAt0 (Beam attenuation, WET Labs C-Star [1/m]), CStarAt0-SD [1/m], CStarTr0 (Beam transmission, WET Labs C-Star [1/m]), CStarTr0-SD [1/m], V2 (Voltage 2 [V]), V2-SD [V}, AltM (Altimeter [m]), AltM-SD [m], V3 (Voltage 3 [V]), V3-SD [V], Par (PAR/Irradiance, Biospherical/Licor), Par-SD, V4 (Voltage 4 [V]), V4-SD [V], Sbeox0V (Oxygen raw [V]), Sbeox0V-SD [V], V5 (Voltage 5 [V]), V5-SD [V], Sbeox1V (Oxygen raw SBE 43 [V]), Sbeox1V-SD [V], V1 (Voltage 1 [V]), V1-SD [V], FlECO-AFL (Fluorescence WET Labs ECO-AFL/FL [mg/m^3]), FlECO-AFL-SD [mg/m^3], Spar (SPAR/Surface Irradiance), Spar-SD, Latitude [decimal degrees], Latitude-SD [decimal degrees], Longitude [decimal degrees], Longitude-SD [decimal degrees]. EN527_BinnedProfiles-flat-V4 - Filename [527_XX_XX], Cruise [EN527], Station [count], Event [count.XX], Scan [count], TimeJ (Julian' Day-of-Year [decimal day]), TimeS (Elapsed Time [seconds]), PrDM (Pressure [dbar]), DepSM (Depth [m]), T090C (Temperature ITS-90 [degrees Celsius]), T190C (Temperature ITS-90 [degrees Celsius]), T2-T190C (Temperature difference ITS-90 [degrees Celsius]), C0S/m (Conductivity [S/m]), C1S/m (Conductivity [S/m]), C2-C1S/m (Conductivity Difference [S/m]), V0 (Voltage [V]), CStarAt0 (Beam Attenuation WET Labs C-Star [1/m]), CStarTr0 (Beam transmission, WET Labs C-Star [1/m]), V2 (Voltage [V]), AltM (Altimeter [m]), V3 (Voltage 3 [V]), Par (PAR/Irradiance, Biospherical/Licor), V4 Voltage 4 V4-SD Sbeox0V Oxygen raw SBE 43 (V), V5 V5-SD Sbeox1V Oxygen raw SBE 43 2 (V), V1 Voltage 1, FlECO-AFL Fluorescence WET Labs ECO-AFL/FL (mg/m^3) FlECO-AFL-SD Spar SPAR/Surface Irradiance, pumps Pump Status, Latitude [decimal degrees], Longitude [decimal degrees], Sal00 (salinity [psu]), Sal11 (salinity [psu]), Sigma-Z00 (Density [kg/m^3]), Sigma-Z11 (Density [kg/m^3]), Sbeox0Mm/Kg (Dissolved oxygen [mmol/kg]), Sbeox1Mm/Kg (Dissolved oxygen [mmol/kg]), Potemp090C (Potential temperature ITS-90 [degrees Celsius]), Potemp190C (Potential temperature ITS-90 [degrees Celsius]), SvCM (Sound velocity [m/s]), SvCM1 (Sound velocity [m/s]), Dz/dtM (Descent rate [m/s]), gpa (Geopotential anomaly [J/Kg]), Nbin (number of scans per bin), flag. 2. Water and sediment chemistry data: For water column data - Location [BOEM lease block], Station, Event, Collection Type, Latitude [degrees decimal minutes], Longitude [degrees decimal minutes], Date [dd/MM/YYYY], Time (local, [HH:MM]), Time (UTC, [HH:MM]), Depth [m], Joye Lab Sample ID, pH, Salinity [PSU], Ammonium (NH4, [uM]), Nitrite (NO2, [uM]), Nitrate+nitrite (NOx, [uM]), Nitrate (NO3, [uM]), Dissolved inorganic nitrogen (DIN, [uM]), Total dissolved nitrogen (TDN, [uM]), ammonium (NH4 lab for DON calc, [uM]), Dissolved organic nitrogen (DON, uM]), Phosphate (PO4, [uM]), Total dissolved phosphorus (TDP, [uM]), Dissolved organic phosphorus (DP[uM]), Ratio of DIN to DIP [molar ratio], Ratio of DON to DOP [molar ratio], Dissolved organic carbon (DOC, [uM]), Methane (CH4, [nM]), Bacterial production [ng C / L /day], Sample sequenced [y/n]. For sediment data - Location [BOEM lease block], Station, Event, Collection Type, Depth Range [cm], Mid-point depth [cm], Latitude [degrees decimal minutes], Longitude [degrees decimal minutes], Date [dd/MM/YYYY], Time (local, [HH:MM]), Time (UTC, [HH:MM]), Depth [m], Joye Lab Sample ID, pH, Salinity [PSU], Ammonium (NH4, [uM]), Nitrite (NO2, [uM]), Nitrate+nitrite (NOx, [uM]), Nitrate (NO3, [uM]), Dissolved inorganic nitrogen (DIN, [uM]), Total dissolved nitrogen (TDN, [uM]), ammonium (NH4 lab for DON calc, [uM]), Dissolved organic nitrogen (DON, uM]), Phosphate (PO4, [uM]), Total dissolved phosphorus (TDP, [uM]), Dissolved organic phosphorus (DP[uM]), Ratio of DIN to DIP [molar ratio], Ratio of DON to DOP [molar ratio], DOC (dissolved organic carbon, [uM]), Methane (CH4, [uM]), Hydrogen sulfide (H2S, [mM]), Sulfate [mM], Chloride [mM], Sodium [mM], Potassium [mM], Magnesium [mM], Calcium [mM], Methane oxidation rate [pmol/cc/day], Sulfate reduction rate [nmol/cc/day], Solid organic matter (SOM, lost on ignition, [%]), Total particulate nitrogen [%], Total particulate carbon [%], Particulate organic carbon [%], Particulate inorganic carbon [%].
Purpose	The purpose of this cruise was to asses the impacts of the Deepwater Horizon blowout on sediment and water chemistry on fallout sites and compare these impacts to naturally occurring oil and gas seeps.
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.; Joye, Samantha B. (2020). CTD, water, and sediment chemistry data collected aboard R/V Endeavor cruise EN527 in the northern Gulf of Mexico from 2013-06-20 to 2013-07-03 (NCEI Accession 0210558). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0210558. Accessed [date].
Cited Authors	Montoya, Joseph P. Georgia Tech, School of Biology Joye, Samantha B.
Resource Providers	Bipana Sigdel Harte Research Institute (HRI) GRIIDC
Points of Contact	Samantha Joye University of Georgia / Department of Marine Sciences Joseph P. Montoya Georgia Institute of Technology / Department of Biology
Publishers	NOAA National Centers for Environmental Information
Acknowledgments	Funding Agency: Gulf of Mexico Research Initiative (GoMRI) Funding Agency: Gulf of Mexico Research Initiative Information & Data Cooperative

Theme keywords	NODC DATA TYPES THESAURUS BEAM ATTENUATION COEFFICIENT CARBON CONDUCTIVITY DISSOLVED ORGANIC CARBON Dissolved Organic Nitrogen DISSOLVED OXYGEN FLUORESCENCE Hydrogen Sulfide (H2S) HYDROSTATIC PRESSURE irradiance Methane (CH4) NITRATE nitrate + nitrite content (concentration) NITRITE NITROGEN ORGANIC MATTER - WEIGHT PERCENT OXYGEN Particulate Inorganic Carbon PARTICULATE ORGANIC CARBON pH PHOSPHORUS - ORGANIC Potential temperature (theta) SALINITY Sulfate (SO4 2-) Total Dissolved Nitrogen (TDN) WATER DENSITY water depth WATER TEMPERATURE NODC OBSERVATION TYPES THESAURUS in situ laboratory analyses profile WMO_CategoryCode oceanography Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC MATTER EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH 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 Provider Keywords Water column conductivity Water column density Water column depth Water column oxygen Water column potential temperature Water column pressure Water column temperature depth range in sediment dissolved inorganic nitrogen dissolved inorganic nitrogen to phosphorus ratio dissolved methane dissolved organic nitrogen to phosphorus ratio dissolved organic phosphorus dissolved phosphate methane oxidation solid organic matter sulfate reduction total dissolved phosphate total particulate carbon total particulate nitrogen water column beam attenuation water column beam transmission water column fluorescence water column salinity
Data Center keywords	NODC SUBMITTING INSTITUTION NAMES THESAURUS GRIIDC
Platform keywords	NODC PLATFORM NAMES THESAURUS Endeavor Global Change Master Directory (GCMD) Platform Keywords Ships ICES/SeaDataNet Ship Codes ENDEAVOR (ICES code: 337W, 2019-)
Instrument keywords	NODC INSTRUMENT TYPES THESAURUS CTD PAR Sensor sediment sampler - corer Global Change Master Directory (GCMD) Instrument Keywords CTD > Conductivity, Temperature, Depth PAR SENSORS > Photosynthetically Active Radiation Sensors SEDIMENT CORERS > SEDIMENT CORERS
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 AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > 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) Cruise ID EN527
Keywords	NCEI ACCESSION NUMBER 0210558
Keywords	Send2NCEI Submission Package ID R5UGA9

Use Constraints	Cite as: Montoya, Joseph P.; Joye, Samantha B. (2020). CTD, water, and sediment chemistry data collected aboard R/V Endeavor cruise EN527 in the northern Gulf of Mexico from 2013-06-20 to 2013-07-03 (NCEI Accession 0210558). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0210558. 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	2020-05-26T18:46:50Z - NCEI Accession 0210558 v1.1 was published.
Output Datasets	NCEI Accession 0210558 v1.1 NCEI Accession 0210558 v1.1 (download) published 2020-05-26T18:46:50Z

Lineage information for: dataset
Processing Steps	Parameter or Variable: Water column conductivity (measured); Units: s/m; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: Water column depth (measured); Units: m; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: Water column temperature (measured); Units: degrees C; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: Water column density (measured); Units: kg/m^3; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: Water column potential temperature (measured); Units: degree C; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: Water column pressure (measured); Units: dbar; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: Water column oxygen (measured); Units: umol/kg; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: water column salinity (measured); Units: psu; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: water column beam attenuation (measured); Units: 1/m; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: water column beam transmission (measured); Units: %; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: water column fluorescence (measured); Units: mg/m^3; Observation Category: in situ; Sampling Instrument: CTD Parameter or Variable: pH (measured); Units: N/A; Observation Category: profile; Sampling Instrument: CTD Parameter or Variable: DISSOLVED OXYGEN (measured); Units: mg/L; Observation Category: profile; Sampling Instrument: CTD Parameter or Variable: NITRITE (measured); Units: um; Observation Category: profile; Sampling Instrument: CTD Parameter or Variable: NITRATE (measured); Units: um; Observation Category: profile; Sampling Instrument: CTD Parameter or Variable: nitrate + nitrite content (concentration) (measured); Units: um; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: dissolved inorganic nitrogen (measured); Units: uM; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: Total Dissolved Nitrogen (TDN) (measured); Units: um; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: Dissolved Organic Nitrogen (measured); Units: uM; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: dissolved phosphate (measured); Units: um; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: total dissolved phosphate (measured); Units: um; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: dissolved organic phosphorus (measured); Units: uM; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: dissolved inorganic nitrogen to phosphorus ratio (measured); Units: molar ratio; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: dissolved organic nitrogen to phosphorus ratio (measured); Units: molar ratio; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: DISSOLVED ORGANIC CARBON (measured); Units: um; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: dissolved methane (measured); Units: nm; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: depth range in sediment (measured); Units: cm; Observation Category: in situ; Sampling Instrument: sediment sampler - corer Parameter or Variable: Hydrogen Sulfide (H2S) (measured); Units: mM; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: methane oxidation (measured); Units: pmol cc-1 d-1; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: sulfate reduction (measured); Units: nmol cc-1 d-1; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: solid organic matter (measured); Units: %; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: total particulate nitrogen (measured); Units: %; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: total particulate carbon (measured); Units: %; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: PARTICULATE ORGANIC CARBON (measured); Units: %; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: Particulate Inorganic Carbon (measured); Units: %; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer Parameter or Variable: irradiance (measured); Units: watt; Observation Category: in situ; Sampling Instrument: PAR Sensor

Lineage information for: dataset

Processing Steps

Parameter or Variable: Water column conductivity (measured); Units: s/m; Observation Category: in situ; Sampling Instrument: CTD
Parameter or Variable: Water column depth (measured); Units: m; Observation Category: in situ; Sampling Instrument: CTD
Parameter or Variable: Water column temperature (measured); Units: degrees C; Observation Category: in situ; Sampling Instrument: CTD
Parameter or Variable: Water column density (measured); Units: kg/m^3; Observation Category: in situ; Sampling Instrument: CTD
Parameter or Variable: Water column potential temperature (measured); Units: degree C; Observation Category: in situ; Sampling Instrument: CTD
Parameter or Variable: Water column pressure (measured); Units: dbar; Observation Category: in situ; Sampling Instrument: CTD
Parameter or Variable: Water column oxygen (measured); Units: umol/kg; Observation Category: in situ; Sampling Instrument: CTD
Parameter or Variable: water column salinity (measured); Units: psu; Observation Category: in situ; Sampling Instrument: CTD
Parameter or Variable: water column beam attenuation (measured); Units: 1/m; Observation Category: in situ; Sampling Instrument: CTD
Parameter or Variable: water column beam transmission (measured); Units: %; Observation Category: in situ; Sampling Instrument: CTD
Parameter or Variable: water column fluorescence (measured); Units: mg/m^3; Observation Category: in situ; Sampling Instrument: CTD
Parameter or Variable: pH (measured); Units: N/A; Observation Category: profile; Sampling Instrument: CTD
Parameter or Variable: DISSOLVED OXYGEN (measured); Units: mg/L; Observation Category: profile; Sampling Instrument: CTD
Parameter or Variable: NITRITE (measured); Units: um; Observation Category: profile; Sampling Instrument: CTD
Parameter or Variable: NITRATE (measured); Units: um; Observation Category: profile; Sampling Instrument: CTD
Parameter or Variable: nitrate + nitrite content (concentration) (measured); Units: um; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: dissolved inorganic nitrogen (measured); Units: uM; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: Total Dissolved Nitrogen (TDN) (measured); Units: um; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: Dissolved Organic Nitrogen (measured); Units: uM; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: dissolved phosphate (measured); Units: um; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: total dissolved phosphate (measured); Units: um; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: dissolved organic phosphorus (measured); Units: uM; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: dissolved inorganic nitrogen to phosphorus ratio (measured); Units: molar ratio; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: dissolved organic nitrogen to phosphorus ratio (measured); Units: molar ratio; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: DISSOLVED ORGANIC CARBON (measured); Units: um; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: dissolved methane (measured); Units: nm; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: depth range in sediment (measured); Units: cm; Observation Category: in situ; Sampling Instrument: sediment sampler - corer
Parameter or Variable: Hydrogen Sulfide (H2S) (measured); Units: mM; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: methane oxidation (measured); Units: pmol cc-1 d-1; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: sulfate reduction (measured); Units: nmol cc-1 d-1; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: solid organic matter (measured); Units: %; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: total particulate nitrogen (measured); Units: %; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: total particulate carbon (measured); Units: %; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: PARTICULATE ORGANIC CARBON (measured); Units: %; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: Particulate Inorganic Carbon (measured); Units: %; Observation Category: laboratory analysis; Sampling Instrument: sediment sampler - corer
Parameter or Variable: irradiance (measured); Units: watt; Observation Category: in situ; Sampling Instrument: PAR Sensor

Acquisition Information (collection)
Instrument	CTD PAR Sensor sediment sampler - corer
Platform	Endeavor

Last Modified: 2025-05-16T15:33:49Z
For questions about the information on this page, please email: ncei.info@noaa.gov

CTD, water, and sediment chemistry data collected aboard R/V Endeavor cruise EN527 in the northern Gulf of Mexico from 2013-06-20 to 2013-07-03 (NCEI Accession 0210558)

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