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Dataset Overview | National Centers for Environmental Information (NCEI)

Louisiana Coastal Hypoxia Shelfwide Annual July Survey, 1994-1997: Hydrographic and chemical data collected in the Northern Gulf of Mexio for the NOAA Nutrient Enhanced Coastal Ocean Productivity (NECOP) program (NCEI Accession 0164298)

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Hydrographic and chemical data were collected for a week each late July from 1994 to 1997 in order to survey the coastal hypoxia on Louisiana continental shelf. Nutrient, pigment, suspended sediment and station information data were also acquired. Data files provided in Microsoft Access format, from which NCEI provides a redundant copy in text format.
  • Cite as: Rabalais, Nancy; Turner, R. Eugene; Wiseman, William J., Jr. (2017). Louisiana Coastal Hypoxia Shelfwide Annual July Survey, 1994-1997: Hydrographic and chemical data collected in the Northern Gulf of Mexio for the NOAA Nutrient Enhanced Coastal Ocean Productivity (NECOP) program (NCEI Accession 0164298). https://www.ncei.noaa.gov/archive/accession/0164298. In Rabalais, Nancy N.; Turner, R. Eugene; Wiseman, Jr., William J.. Louisiana Hypoxia Surveys 1998-2021: Physical (Hydrography), chemical (CTD), and biological (Water Quality) processes of the Texas-Louisiana continental shelf. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/LUMCON-NGOMEX-LA-Hypoxia-Survey. Accessed [date].
gov.noaa.nodc:0164298
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Distribution Formats
  • Access (Version: MSAccess 2000)
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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
Coverage Description Louisiana coastal waters, Northwestern Gulf of Mexico.
Time Period 1994-07-24 to 1997-07-29
Spatial Bounding Box Coordinates
West: -93.7
East: -89.4
South: 28.39
North: 29.7
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • publication: 2017-07-26
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
Purpose The physical, biological and chemical data collected are part of a long-term coastal Louisiana dataset. The goal is to understand physical and biological processes that contribute to the causes of hypoxia and use the data to support environmental models for use by resource managers.
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: Rabalais, Nancy; Turner, R. Eugene; Wiseman, William J., Jr. (2017). Louisiana Coastal Hypoxia Shelfwide Annual July Survey, 1994-1997: Hydrographic and chemical data collected in the Northern Gulf of Mexio for the NOAA Nutrient Enhanced Coastal Ocean Productivity (NECOP) program (NCEI Accession 0164298). https://www.ncei.noaa.gov/archive/accession/0164298. In Rabalais, Nancy N.; Turner, R. Eugene; Wiseman, Jr., William J.. Louisiana Hypoxia Surveys 1998-2021: Physical (Hydrography), chemical (CTD), and biological (Water Quality) processes of the Texas-Louisiana continental shelf. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/LUMCON-NGOMEX-LA-Hypoxia-Survey. Accessed [date].
Cited Authors
Principal Investigators
Contributors
Resource Providers
Publishers
Acknowledgments
  • Funding: Funds for the research were provided by the National Oceanographic and Atmospheric Administration, Nutrient Enhanced Coastal Ocean Productivity (NECOP) program.
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords
Data Center keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS
Platform keywords NODC PLATFORM NAMES THESAURUS Global Change Master Directory (GCMD) Platform Keywords ICES/SeaDataNet Ship Codes
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords
Project keywords NODC PROJECT NAMES THESAURUS
Keywords NCEI ACCESSION NUMBER
Keywords Send2NCEI Submission Package ID
  • 106TPR
Use Constraints
  • Cite as: Rabalais, Nancy; Turner, R. Eugene; Wiseman, William J., Jr. (2017). Louisiana Coastal Hypoxia Shelfwide Annual July Survey, 1994-1997: Hydrographic and chemical data collected in the Northern Gulf of Mexio for the NOAA Nutrient Enhanced Coastal Ocean Productivity (NECOP) program (NCEI Accession 0164298). https://www.ncei.noaa.gov/archive/accession/0164298. In Rabalais, Nancy N.; Turner, R. Eugene; Wiseman, Jr., William J.. Louisiana Hypoxia Surveys 1998-2021: Physical (Hydrography), chemical (CTD), and biological (Water Quality) processes of the Texas-Louisiana continental shelf. [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/LUMCON-NGOMEX-LA-Hypoxia-Survey. 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
  • 2017-07-26T17:02:17Z - NCEI Accession 0164298 v1.1 was published.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Data Type: CONDUCTIVITY (measured); Units: S/m; Observation Type: in situ; Sampling Instrument: Sea-Bird; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: WATER DENSITY (calculated); Units: Density sigma-t; Observation Type: in situ; Sampling Instrument: Sea-Bird; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: DEPTH (measured); Units: m; Observation Type: in situ; Sampling Instrument: Sea-bird; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Fluorometer Voltage (measured); Units: volts; Observation Type: in situ; Sampling Instrument: Sea-bird; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Oxygen (measured); Units: mg/L; Observation Type: in situ; Sampling Instrument: Sea-Bird; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Oxygen Percent Saturation (calculated); Units: %; Observation Type: in situ; Sampling Instrument: Sea-Bird; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Percent light transmission (measured); Units: %; Observation Type: in situ; Sampling Instrument: Sea-Bird; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Salinity (measured); Units: ppt; Observation Type: in situ; Sampling Instrument: Sea-Bird; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: TEMPERATURE - WATER [WATER TEMPERATURE] (measured); Units: Degrees centigrade; Observation Type: in situ; Sampling Instrument: Sea-Bird; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: AMMONIUM (NH4) (measured); Units: µg-at/L; Observation Type: laboratory analysis; Sampling Instrument: laboratory analysis; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: NITRITE (measured); Units: µg-at/L; Observation Type: laboratory analysis; Sampling Instrument: laboratory analysis; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: nitrate + nitrite content (concentration) (measured); Units: µg-at/L; Observation Type: laboratory analysis; Sampling Instrument: laboratory analysis; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: NITRATE (measured); Units: µg-at/L; Observation Type: laboratory analysis; Sampling Instrument: laboratory analysis; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: phosphate (measured); Units: µg-at/L; Observation Type: laboratory analysis; Sampling Instrument: laboratory analysis; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Silicate (measured); Units: µg-at/L; Observation Type: laboratory analysis; Sampling Instrument: laboratory analysis; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Mean Chlorophyll a (measured); Units: µg/L; Observation Type: laboratory analysis; Sampling Instrument: Turner Designs model 10 fluorometer; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Mean Fo/Fa ratio (calculated); Units: ratio; Observation Type: laboratory analysis; Sampling Instrument: Turner Designs model 10 fluorometer; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Mean Phaeopigments (measured); Units: µg/L; Observation Type: laboratory analysis; Sampling Instrument: Turner Designs model 10 fluorometer; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Total pigments (calculated); Units: µg/L; Observation Type: laboratory analysis; Sampling Instrument: Turner Designs model 10 fluorometer; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Station Depth (measured); Units: m; Observation Type: in situ; Sampling Instrument: ship fathometer; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: LATITUDE (measured); Units: decimal degrees; Observation Type: in situ; Sampling Instrument: ship GPS; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: LONGITUDE (measured); Units: decimal degress; Observation Type: in situ; Sampling Instrument: ship GPS; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Secchi Disk Depth (measured); Units: m; Observation Type: in situ; Sampling Instrument: secchi disk; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Time (measured); Units: Central Daylight Time; Observation Type: in situ; Sampling Instrument: ship clock; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: SALINITY (measured); Units: ppt & psu; Observation Type: laboratory analysis; Sampling Instrument: Guildline Autosal & Portasal; Sampling and Analyzing Method: Autosal used 1994; Portasal 1995-1997. ppt used 1994-1996; psu 1997. Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: SUSPENDED MATTER - TOTAL [suspended solids] (measured); Units: mg/L; Observation Type: laboratory analysis; Sampling Instrument: GF/F Filters; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Density (measured); Units: Density sigma-t; Observation Type: in situ; Sampling Instrument: Hydrolab Surveyor 3; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Depth (measured); Units: m; Observation Type: in situ; Sampling Instrument: Hydrolab Surveyor 3; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: DISSOLVED OXYGEN (measured); Units: mg/L; Observation Type: in situ; Sampling Instrument: Hydrolab Surveyor 3; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Oxygen Percent Saturation (measured); Units: %; Observation Type: in situ; Sampling Instrument: Hydrolab Surveyor 3; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: pH (measured); Units: pH units; Observation Type: in situ; Sampling Instrument: Hydrolab Surveyor 3; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: SALINITY (measured); Units: ppt & psu; Observation Type: in situ; Sampling Instrument: Hydrolab Surveyor 3; Sampling and Analyzing Method: ppt used 1994-1996; psu 1997. Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Specific Conductance (measured); Units: mS/cm; Observation Type: in situ; Sampling Instrument: Hydrolab Surveyor 3; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
  • Data Type: Water Temperature (measured); Units: Degrees Centigrade; Observation Type: in situ; Sampling Instrument: Hydrolab Surveyor 3; Sampling and Analyzing Method: Further details of methodology can be found within the metadata text file for each cruise.; Data Quality Information: Further details of quality control can be found within the metadata text file for each cruise.
Acquisition Information (collection)
Instrument
  • CTD
  • laboratory analysis
  • Secchi disk
Platform
  • R/V Pelican
  • Tommy Munro
Last Modified: 2024-09-17T19:22:42Z
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