gov.noaa.nodc:LUMCON-NGI-LA-Hypoxia-Survey eng utf8 series NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2026-07-20T13:22:02Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Louisiana Hypoxia Surveys 1998-2023: Physical (Hydrography), chemical (CTD), and biological (Water Quality) processes of the Texas-Louisiana continental shelf 2002-11-19 publication 2025-12-12 revision 1998 creation International DOI Foundation (IDF) 10.25921/4t1g-9s57 NOAA National Centers for Environmental Information gov.noaa.nodc:LUMCON-NGI-LA-Hypoxia-Survey NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Nancy N. Rabalais Louisiana Universities Marine Consortium (LUMCON) nrabalais@lumcon.edu http://www.lumcon.edu HTTP Louisiana Universities Marine Consortium (LUMCON) website Institution web page information resourceProvider Thomas Widgeon Louisiana Universities Marine Consortium (LUMCON) twidgeon@lumcon.edu http://www.lumcon.edu HTTP Louisiana Universities Marine Consortium (LUMCON) website Institution web page information resourceProvider Leslie M. Smith Louisiana Universities Marine Consortium (LUMCON) leslie.smith@youroceanconsulting.com http://www.lumcon.edu HTTP Louisiana Universities Marine Consortium (LUMCON) website Institution web page information resourceProvider Louisiana Universities Marine Consortium (LUMCON) http://www.lumcon.edu HTTP Louisiana Universities Marine Consortium (LUMCON) website Institution web page information resourceProvider Nancy N. Rabalais Louisiana Universities Marine Consortium (LUMCON) nrabalais@lumcon.edu http://www.lumcon.edu HTTP Louisiana Universities Marine Consortium (LUMCON) website Institution web page information principalInvestigator Rabalais, Nancy N. Louisiana Universities Marine Consortium http://www.lumcon.edu HTTP Louisiana Universities Marine Consortium (LUMCON) website Institution web page information author Turner, R. Eugene Louisiana State University author Wiseman, Jr., William J. Louisiana State University author Florida Institute of Technology (FIT) http://www.fit.edu HTTP Florida Institute of Technology (FIT) website Institution web page information contributor Louisiana Universities Marine Consortium (LUMCON) http://www.lumcon.edu HTTP Louisiana Universities Marine Consortium (LUMCON) website Institution web page information contributor NOAA Great Lakes Environmental Research Laboratory (GLERL) http://www.glerl.noaa.gov/ HTTP NOAA Great Lakes Environmental Research Laboratory (GLERL) website Institution web page information contributor University of Minnesota Twin Cities https://twin-cities.umn.edu/ HTTPS University of Minnesota Twin Cities website Institution web page information contributor The University of Southern Mississippi (USM) http://www.usm.edu/ HTTP The University of Southern Mississippi (USM) website Institution web page information contributor University of Michigan contributor The University of Texas at Austin (UT Austin) https://www.utexas.edu/ HTTPS The University of Texas at Austin (UT Austin) website Institution web page information contributor University of Maryland, College Park (UMD) https://www.umd.edu/ HTTPS University of Maryland, College Park (UMD) website Institution web page information contributor NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) https://www.aoml.noaa.gov/ HTTPS NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) website Institution web page information contributor Louisiana State University (LSU) contributor University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) http://www.rsmas.miami.edu HTTP University of Miami Rosenstiel School of Marine and Atmospheric Science (RSMAS) website Institution web page information contributor Texas A&M University (TAMU) https://www.tamu.edu/ HTTPS Texas A&M University (TAMU) website Institution web page information contributor tableDigital CTD data were taken during surveys of the Louisiana continental shelf during yearly Shelfwide Hypoxia cruises. Hydrographic data were obtained using CTD. Nutrient, pigment, suspended sediment, surface salinity, Secchi depth, and station information data were also acquired. 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. The size of the hypoxic area is part of the baseline data considered by the Mississippi River/Gulf of Mexico Nutrient/Hypoxia Task Force. Funding: Funds for the research were provided by the National Oceanic and Atmospheric Administration, Coastal Ocean Program, Grant Nos. NA86RG0341 and NA960P0112. Funds for rental of the R/V PELICAN were provided by National Science Foundation Grant No. OCE-9818985 to Q. Dortch, Louisiana Universities Marine Consortium. Funding: Funds for the research were provided by the National Oceanic and Atmospheric Administration, Coastal Ocean Program, Grant No. NA06OP0529 to Louisiana State University. Funding: Funds for the research were provided by the National Oceanic and Atmospheric Administration, Center for Sponsored Coastal Ocean Research, Grant No. NA03NOS4780037 to Louisiana Universities Marine Consortium. Funding: Funds for the research and the rental of the R/V PELICAN (beginning July 2000) were provided by the National Oceanic and Atmospheric Administration, Coastal Ocean Program, Grant No. NA06OP0528 to Louisiana Universities Marine Consortium. Funding: Funds for the research were provided by the National Oceanic and Atmospheric Administration, Coastal Ocean Program, Grant No. NA03NOS4780038 to Louisiana State University. Funding: Funds for the research were provided by the National Oceanic and Atmospheric Administration, Center for Sponsored Coastal Ocean Research, Grant No. NA06NPS4780197 to Louisiana Universities Marine Consortium, with a subaward to Louisiana State University. Funding: Funding for data collection and processing was provided by the National Oceanic and Atmospheric Administration, Center for Sponsored Coastal Ocean Research, Grant No. NA09NOS4780204 to Louisiana Universities Marine Consortium, with a subaward to Louisiana State University. Funding for data collection and processing was provided by the National Oceanic and Atmospheric Administration, Center for Sponsored Coastal Ocean Research, Grant No. NA09NOS478023 to Louisiana State University. Funding Agency: NOAA Center for Coastal Environmental Health and Biomolecular Research Funding: Funds for the research were provided by the National Oceanographic and Atmospheric Administration, Nutrient Enhanced Coastal Ocean Productivity (NECOP) program. Funding Agency: NOAA National Centers for Coastal Ocean Science Funding Agency: US DOC; NOAA; NOS; National Centers for Coastal Ocean Science; Center for Sponsored Coastal Ocean Research Funding Agency: NOAA National Ocean Service completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:LUMCON-NGI-LA-Hypoxia-Survey Preview graphic PNG 0002033 0020956 0032050 0039733 0049435 0060060 0069471 0099531 0117436 0129417 0161219 0162101 0162440 0164298 0205844 0205845 0208325 0219157 0244848 0294428 0294429 0302758 9800129 NCEI ACCESSION NUMBER 2001-02-02 publication AMMONIA (NH3) AMMONIUM (NH4) biological data CARBON CHLOROPHYLL CHLOROPHYLL - EXTRACTED CHLOROPHYLL - RELATIVE FLUORESCENCE CHLOROPHYLL A CHLOROPHYLL A CONCENTRATION Chromophoric Dissolved Organic Matter (CDOM) CONDUCTIVITY CORE - BOTTOM DEPTH - BOTTOM DEPTH - OBSERVATION DEPTH - SENSOR DISSOLVED OXYGEN FLUORESCENCE hypoxia irradiance JULIAN YEAR - DAY LATITUDE LIGHT PENETRATION LIGHT TRANSMISSION LONGITUDE NITRATE nitrate + nitrite content (concentration) NITRITE NITROGEN - ORGANIC NUTRIENTS OXYGEN OXYGEN - PERCENT SATURATION partial pressure of carbon dioxide - water pH PHAEOPHYTIN PHAEOPIGMENT CONCENTRATION PHAEOPIGMENTS phosphate PHOTOSYNTHETIC ACTIVE RADIATION (PAR) PHYTOPLANKTON PIGMENTS SALINITY SALINITY - BOTTOM WATER SALINITY - SURFACE WATER Secchi depth SEDIMENT - GRAIN SIZE SEDIMENTS SIGMA-T SIGMA-THETA silicate Silicon SPECIES IDENTIFICATION - ORGANISM LENGTH SPECIES IDENTIFICATION - SEX suspended solids TRACE METALS TRANSMISSIVITY turbidity UREA WATER DENSITY water depth WATER TEMPERATURE ZOOPLANKTON theme NODC DATA TYPES THESAURUS bottle bucket conductivity sensor CTD CTD - moored CTD echo sounder flow injection analyzer fluorometer GPS laboratory analysis multi-parameter water quality sensor nutrient autoanalyzer oxygen sensor PAR Sensor pH sensor pressure sensor refractometer salinometer Secchi disk sediment sampler - corer spectrophotometer temperature sensor thermosalinograph titrator transmissometer trap - plankton instrument NODC INSTRUMENT TYPES THESAURUS biological chemical in situ laboratory analyses physical plankton profile sediment analysis surface measurements survey water chemistry theme NODC OBSERVATION TYPES THESAURUS GYRE LONGHORN NOAA Ship Chapman NOAA Ship Malcolm Baldrige NOAA Ship Researcher R/V Acadiana R/V Pelican Tommy Munro platform NODC PLATFORM NAMES THESAURUS Florida Institute of Technology Louisiana State University Louisiana Universities Marine Consortium NOAA Atlantic Oceanographic and Meteorological Laboratory NOAA Great Lakes Environmental Research Laboratory Texas A&M University The University of Southern Mississippi The University of Texas at Austin University of Maryland, College Park University of Miami Rosenstiel School of Marine and Atmospheric Science University of Michigan University of Minnesota Twin Cities dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS Louisiana Universities Marine Consortium dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Gulf of Mexico Ecosystems and Hypoxia Assessment (NGOMEX) Hypoxia Studies in the Northern Gulf of Mexico NUTRIENT ENHANCED COASTAL OCEAN PRODUCTIVITY (NECOP) project NODC PROJECT NAMES THESAURUS Coastal Waters of Gulf of America Coastal Waters of Gulf of Mexico Coastal Waters of Louisiana Coastal Waters of Texas Gulf of Mexico Mississippi River North Atlantic Ocean place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce DOC/NOAA/OAR/AOML > Atlantic Oceanographic and Meteorological Laboratory, OAR, NOAA, U.S. Department of Commerce DOC/NOAA/OAR/GLERL > Great Lakes Environmental Research Laboratory, OAR, NOAA, U.S. Department of Commerce U-MIAMI/RSMAS > Rosenstiel School of Marine and Atmospheric Science, University of Miami dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Hypoxia National Office Technical Assistance, Observation and Monitoring, and Coordination Support Activities, Mississippi State University, NA16OAR432019 Hypoxia National Office Technical Assistance, Observation and Monitoring, and Coordination Support Activities, Mississippi State University, NA16OAR4320199 project Provider Project Names DISSOLVED OXYGEN Inorganic suspended particulate matter Mean Fo/Fa SONAR ALTIMETER SURFACE PHOTOSYNTHETIC ACTIVE RADIATION (PAR) Time Total Suspended Sediments organic suspended particulate material pH mV theme Data Types EARTH SCIENCE > BIOLOGICAL CLASSIFICATION EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > PROTISTS > PLANKTON > PHYTOPLANKTON EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > BIOGEOCHEMICAL CYCLES EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > NUTRIENT CYCLING EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > OXYGEN DEMAND EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOSYSTEM FUNCTIONS > PRIMARY PRODUCTION EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > AQUATIC ECOSYSTEMS > PLANKTON > ZOOPLANKTON EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > SURFACE SALINITY EARTH SCIENCE > HUMAN DIMENSIONS > HABITAT CONVERSION/FRAGMENTATION > EUTROPHICATION EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH EARTH SCIENCE > OCEANS > MARINE SEDIMENTS EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > AMMONIA EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > HYPOXIA EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NUTRIENTS EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC MATTER EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PIGMENTS > CHLOROPHYLL EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SUSPENDED SOLIDS EARTH SCIENCE > OCEANS > OCEAN OPTICS EARTH SCIENCE > OCEANS > OCEAN OPTICS > ATTENUATION/TRANSMISSION EARTH SCIENCE > OCEANS > OCEAN OPTICS > FLUORESCENCE EARTH SCIENCE > OCEANS > OCEAN OPTICS > IRRADIANCE EARTH SCIENCE > OCEANS > OCEAN OPTICS > PHOTOSYNTHETICALLY ACTIVE RADIATION EARTH SCIENCE > OCEANS > OCEAN OPTICS > SECCHI DEPTH EARTH SCIENCE > OCEANS > OCEAN OPTICS > TURBIDITY 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 EARTH SCIENCE > Oceans > Coastal Processes EARTH SCIENCE > Oceans > Marine Environment Monitoring EARTH SCIENCE > Oceans > Ocean Chemistry > Biogeochemical Cycles EARTH SCIENCE > Oceans > Ocean Circulation > Fronts EARTH SCIENCE > Oceans > Ocean Temperature EARTH SCIENCE > Oceans > Salinity/Density EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > GASES > DISSOLVED OXYGEN EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > NUTRIENTS EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > SOLIDS > SUSPENDED SOLIDS EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER CHARACTERISTICS > CHLOROPHYLL CONCENTRATIONS EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER CHARACTERISTICS > CONDUCTIVITY EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER CHARACTERISTICS > LIGHT TRANSMISSION EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER CHARACTERISTICS > NITROGEN COMPOUNDS EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER CHARACTERISTICS > WATER TEMPERATURE EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER CHARACTERISTICS > pH theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Stressor Impacts and Mitigation > Biological Effects of Contaminants and Nutrients theme NCCOS Research Areas Field Observation theme NCCOS Research Data Types Inorganic suspended particulate matter Mean Fo/Fa Surface Photosynthetic Active Radiation (PAR) Time Total Suspended Sediments organic suspended particulate material pH mV theme Provider Data Types Colored Dissolved Organic Matter DISSOLVED OXYGEN Depth - YSI Depth – Fathometer INSTRUMENT - DEPTH Inorganic suspended particulate matter Mean Fo/Fa Nitrite + Nitrate content (concentration) Organic suspended particulate material Organic suspended particulate matter Oxygen – Percent Saturation SONAR ALTIMETER Salinity – Surface Water Sonar Altimeter– in Station Log Specific Conductance Surface Photosynthetic Active Radiation (PAR) Temperature – Water Time Total Dissolved Solids Total Pigments Total Suspended Sediments pH mV theme Provider Keywords AUTOANALYZER > AUTOANALYZER CONDUCTIVITY METERS > CONDUCTIVITY METERS CTD > Conductivity, Temperature, Depth ECHO SOUNDERS > ECHO SOUNDERS FIA > FLOW INJECTION ANALYSIS FLUOROMETERS > FLUOROMETERS GPS RECEIVERS > GPS RECEIVERS OPTSPEC > Optical Spectrometer OXYGEN METERS > OXYGEN METERS PAR SENSORS > Photosynthetically Active Radiation Sensors PH METERS > PH METERS PRESSURE SENSORS > PRESSURE SENSORS SALINOMETERS SECCHI DISKS > SECCHI DISKS SEDIMENT CORERS > SEDIMENT CORERS TEMPERATURE SENSORS > TEMPERATURE SENSORS THERMOSALINOGRAPHS TRANSMISSOMETERS TRAPS > TRAPS instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Biospherical Instruments 2-QSP-200L Biospherical Instruments QSP-2300 Biospherical Instruments QSP-2300 (in water PAR) Biospherical Instruments QSP-2300 and QSR2200 Biospherical Instruments QSP-2300 in water PAR and QSR-2000/240 Surface PAR Biospherical Instruments QSR-2000/240 Surface PAR Biospherical Instruments Surface PAR QSR2200 Chelsea Instruments Aquatraka III Chelsea Instruments Aquatraka III fluorometer Dual pumped SBE 3 temperature sensor Dual pumped SBE 4 conductivity sensor Furuno GPS Navagation GP-90 Furuno-SC50 GF/F Filter Hanna HI2003-01 Knudsen Chirp Model 3260 (100kHz/12kHz) Lachat QuikChem Mettler Toledo DL28 Titrator Mettler Toledo G20 Titrator Multiple Instrument Data Acquisition System (MIDAS) Odom Echotrac II Fathometer SBE 13-01 SBE 18 pH/O.R.P (Redox) sensor SBE 27 pH/O.R.P (Redox) sensor SBE 3-01/F SBE 4-01/0 SBE CTD SBE CTD and SBE 43 dissolved oxygen sensor SBE CTD, SBE 43 dissolved oxygen sensors SBE-9+, Paroscientific Digiquartz(r) pressure sensor SONAR ALTIMETER Scientific Computer System (SCS) Scientific Computer System (SCS) and YSI 6820 handheld unit Scientific Computer System (SCS) and YSI EXO3 handheld unit Sea-Bird SBE 43 dissolved oxygen sensor Sea-Bird SBE 43 dissolved oxygen sensors Seabird model SBE-21 Thermosalinograph Seapoint Ultraviolet Fluorometer Sonar Altimeter, Teledyne Benthos Altimeter PSA-916 Sonar Altimeter, Teledyne Benthos PSA-900 Sonar Altimeter, Teledyne Benthos PSA-916 Turner digital 10-AU WETLabs C-Star 25 cm path length transmissometer WETLabs CDOM Fluorometer Wetlabs Transmissometer YSI - handheld multi-parameter instrument YSI EXO3 – handheld multi-parameter instrument YSI – handheld multi-parameter instrumen YSI – handheld multi-parameter instrument instrument Provider Instruments Biospherical Instruments QSP-2300 Biospherical Instruments QSP-2300 in water PAR and QSR Surface PAR Biospherical Instruments QSR Surface PAR Chelsea Instruments Aquatraka III Dual pumped SBE 3 temperature sensor Dual pumped SBE 4 conductivity sensor Furuno GPS Navagation GP-90 Furuno GPS Navigation GP-90 GF/F Filter Guildline Instruments Portasal Lachat QuikChem Mettler Toledo DL28 Titrator Multiple Instrument Data Acquisition System (MIDAS) Odom Echotrac II Fathometer SBE CTD SBE-9+, Paroscientific Digiquartz(r) pressure sensor Sea-Bird SBE 43 dissolved oxygen sensor Sonar Altimeter, Teledyne Benthos PSA-900 Turner digital 10-AU WETLabs C-Star 25 cm path length transmissometer WETLabs CDOM fluorometer YSI - handheld multi-parameter instrument instrument Sampling Instruments Ships platform Global Change Master Directory (GCMD) Platform Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian ACADIANA (call sign: WDG3928, ICES code: 33SZ, 1985-) CHAPMAN (call sign: WTED, ICES code: 32YN, 1980-1998) GYRE (ICES code: 32GY) LONGHORN (ICES code: 32LH) Malcolm Baldrige (call sign: WTER, ICES code: 33MW, 1988-1996) PELICAN (call sign: WSK3051, ICES code: 32PE, 1985-) Researcher (call sign: WTER, ICES code: 3175, 1970-1987) Tommy Munro (call sign: WDE4584, ICES code: 33TM) platform ICES/SeaDataNet Ship Codes PELICAN (Call Sign WDD6114 - NODC Code 32PE) platform Provider Platform Names CONTINENT > NORTH AMERICA CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA GEOGRAPHIC REGION > NORTHERN HEMISPHERE OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian U.S. States and Territories > Louisiana Waterbodies > Gulf of Mexico place NCCOS Regions of Study VERTICAL LOCATION > SEA SURFACE stratum Global Change Master Directory (GCMD) Stratum Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian 106TPR 7C298N 82BCLC AL726U AWW41G E92Y1L FU0FJ8 FY1EKF KRW314 TAPHP4 UH8MYB Y7MTJ5 Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Rabalais, Nancy N.; Turner, R. Eugene; Wiseman, Jr., William J. (2002). Louisiana Hypoxia Surveys 1998-2023: 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://doi.org/10.25921/4t1g-9s57. Accessed [date]. 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. otherRestrictions 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. license Some of the data in this dataset has been dedicated to the public domain under the Creative Commons CC0 1.0 Universal (CC0 1.0) Public Domain Dedication. SPDX License: Creative Commons Zero v1.0 Universal (CC0-1.0) NCCOS: Northern Gulf of Mexico Ecosystems & Hypoxia Assessment (NGOMEX) 2023 publication https://coastalscience.noaa.gov/science-areas/habs/habhrca/ngomex/ HTTPS https://coastalscience.noaa.gov/science-areas/habs/habhrca/ngomex/ related program website information NOAA National Centers for Coastal Ocean Science (NCCOS) https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information publisher documentDigital [accessed 2024-08-17 crossReference program Hendee, James C.; NOAA Atlantic Oceanographic and Meteorological Laboratory (2002). Chemical, zooplankton, and phytoplankton data from CTD and other instruments in the Mississippi River and Gulf of Mexico as part of the Nutrient Enhanced Coastal Ocean Productivity (NECOP) project, from 1985-07-15 to 1993-05-12 (NCEI Accession 9800129). https://www.ncei.noaa.gov/archive/accession/9800129. In Rabalais, Nancy N.; Turner, R. Eugene; Wiseman, Jr., William J. (2002). Louisiana Hypoxia Surveys 1998-2023: Physical (Hydrography), chemical (CTD), and biological (Water Quality) processes of the Texas-Louisiana continental shelf. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4t1g-9s57. 2002-11-19 publication NOAA National Centers for Environmental Information gov.noaa.nodc:9800129 https://www.ncei.noaa.gov/archive/accession/9800129 HTTPS https://www.ncei.noaa.gov/archive/accession/9800129 Related dataset information Hendee, James C. NOAA Atlantic Oceanographic and Meteorological Laboratory https://www.aoml.noaa.gov/ HTTPS NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) website Institution web page information author NOAA Atlantic Oceanographic and Meteorological Laboratory https://www.aoml.noaa.gov/ HTTPS NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML) website Institution web page information author NOAA National Centers for Environmental Information (NCEI) publisher tableDigital crossReference collection eng; USA utf8 environment oceans biota -95 -89 28 30 1985-07-15 2023-07-27 NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact 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. Contact NCEI for other distribution options and instructions. Access MSAccess 2000 Excel CSV 289.156 https://doi.org/10.25921/4t1g-9s57 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/metadata/granule/geoportal/?from=0&size=10&esdsl=%7B%22query%22%3A%7B%22bool%22%3A%7B%22must%22%3A%5B%7B%22query_string%22%3A%7B%22analyze_wildcard%22%3Atrue%2C%22query%22%3A%22fileid%3ALUMCON-NGI-LA-Hypoxia-Survey.*%22%7D%7D%5D%7D%7D%7D#searchPanel HTTPS Web browser Granule Search Search for data granules belonging to this collection (a granule is the smallest aggregation of data that can be independently described and retrieved). search series NCEI Accession 9800129 v1.1 was published. 2002-11-19T19:40:22Z NCEI Accession 0002033 v1.1 was published. 2005-02-18T20:38:10Z NCEI Accession 0020956 v1.1 was published. 2007-07-05T12:43:44Z NCEI Accession 0032050 v1.1 was published. 2007-08-20T18:32:42Z NCEI Accession 0039733 was revised and v2.2 was published. 2008-03-17T13:53:28Z NCEI Accession 0049435 v1.1 was published. 2008-12-15T16:12:14Z NCEI Accession 0060060 v1.1 was published. 2009-12-10T23:00:06Z NCEI Accession 0069471 v1.1 was published. 2010-12-20T16:24:52Z NCEI Accession 0099531 v1.1 was published. 2012-12-11T15:28:10Z NCEI Accession 0117436 v1.1 was published. 2014-04-09T13:29:10Z NCEI Accession 0117436 was revised and v2.2 was published. 2015-04-14T15:33:15Z NCEI Accession 0129417 v1.1 was published. 2015-08-31T17:38:13Z NCEI Accession 0161219 v1.1 was published. 2017-03-17T01:17:07Z NCEI Accession 0162101 v1.1 was published. 2017-04-18T16:43:26Z NCEI Accession 0162440 v1.1 was published. 2017-05-16T03:41:08Z NCEI Accession 0164298 v1.1 was published. 2017-07-26T17:02:17Z NCEI Accession 0205844 v1.1 was published. 2019-10-29T20:21:44Z NCEI Accession 0205845 v1.1 was published. 2019-10-29T20:21:52Z NCEI Accession 0208325 v1.1 was published. 2020-01-10T17:11:22Z NCEI Accession 0219157 v1.1 was published. 2020-08-27T14:41:51Z NCEI Accession 0039733 v1.1 was published. 2021-10-15T02:35:24Z NCEI Accession 0244848 v1.1 was published. 2022-01-10T19:16:14Z NCEI Accession 9800129 was revised and v1.2 was published. 2023-02-16T10:02:31Z NCEI Accession 0294428 v1.1 was published. 2024-07-19T19:59:41Z NCEI Accession 0294429 v1.1 was published. 2024-08-01T15:47:26Z NCEI Accession 9800129 was revised and v1.3 was published. 2024-08-26T12:42:17Z NCEI Accession 0302758 v1.1 was published. 2025-03-25T18:06:38Z NCEI Accession 0302758 was revised and v2.2 was published. 2025-12-12T00:24:50Z repository NOAA National Centers for Environmental Information NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015. 2015-04-22T00:00:00 asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian bottle bottle any type of water bottle sampling device Generic name for water collection device; usually used to determine temperature, salinity and provide water aliquots for measurement of a wide range of parameters; often referred to by a specific type of water sampling bottle, such as a Nansen or Niskin bottle. bucket bucket bucket conductivity sensor conductivity sensor OMEGA non-contact conductivity sensor CDCN-108 or Honeywell DirectLine DL423 Sensor Module, for example Water conductivity sensors are used to measure how well a solution conducts an electrical current. CTD CTD Conductivity-Temperature-Depth probe CTD - moored CTD CTD - moored CTD CTD - moored CTD echo sounder echo sounder instrument used to determine water depth or bathymetry also known as an echosounder flow injection analyzer flow injection analyzer automated chemical analysis instrument An instrument that performs flow injection analysis. Flow injection analysis (FIA) is an approach to chemical analysis that is accomplished by injecting a plug of sample into a flowing carrier stream. FIA is an automated method in which a sample is injected into a continuous flow of a carrier solution that mixes with other continuously flowing solutions before reaching a detector. Precision is dramatically increased when FIA is used instead of manual injections and as a result very specific FIA systems have been developed for a wide array of analytical techniques. https://www.bco-dmo.org/instrument/657 (accessed 2018-01-26) Laboratory instrument that analyzes multiple media for ions. The media include various solids and liquids. Models include: QuikChem 8000 Series FIA System fluorometer fluorometer fluorometer GPS GPS Global Positioning System receiver satellite-based instrument used for geo-location, positioning and navigation laboratory analysis laboratory analysis use as an observation type multi-parameter water quality sensor multi-parameter water quality sensor used to measure temperature, salinity, dissolved oxygen, and other parameters Instrument used to measure temperature, salinity, dissolved oxygen, and other parameters, often used to measure water quality parameters. Can be a hand-held instrument or a sonde for unattended monitoring. Often used in coastal water monitoring stations. YSI is the preeminent brand (as of 2024). nutrient autoanalyzer nutrient autoanalyzer Laboratory Instrument Nutrient Autoanalyzer is a generic term describing an automated flow-thru system used to conduct analyses of several different nutrients (nitrate, ammonium, orthophosphate, and silicate) simultaneously from a seawater sample. For example: SEAL AutoAnalyzer 3 HR Continuous Segmented Flow Analyzer oxygen sensor oxygen sensor Any instrument that measures oxygen content in a compound. PAR Sensor PAR Sensor Photosynthetically Active Radiation Sensor The PAR sensor measures global solar radiation from 400 to 700 nm, which approximates the spectral band active in photosynthesis. The response of the instrument falls sharply to zero on either side of this band, and between 400 and 670 nm it increases monotonically from about 50% to 100%. There is no protective glass dome over the receiving surface. Irradiance from the sun passes through a small white visible bandpass filter/diffuser in the shape of a horizontal disk at the top of the instrument. Within the instrument radiation is directed through a series of colored glass filters and onto a silicon photodiode detector. The factory-supplied calibration converts the signal from the detector to a flux of photons in micro-mole (of photons) s-1 m-2. (One micro-mole equals 6.022 E17 photons.) For the solar spectrum, these units may be converted to watts per square meter by dividing by 4.6. (http://www.srrb.noaa.gov/instrument/par.htm) pH sensor pH sensor generic meter used to measure pH Any of a class of instruments used to quantify pH in a water or other type of sample. pressure sensor pressure sensor GCMD instruments - In Situ/Laboratory Instruments > Pressure/Height Meters > PRESSURE SENSORS ASFA Thesaurus - pressure sensors http://www4.fao.org/asfa/asfa.htm refractometer refractometer refractometer salinometer salinometer generic salinometer use salinometer when the instrument type used is unclear but the data include salinity measurements Secchi disk Secchi disk The Secchi disk (or Secchi disc), as created in 1865 by Angelo Secchi, is a plain white, circular disk 30 cm (12 in) in diameter used to measure water transparency or turbidity in bodies of water. The disc is mounted on a pole or line, and lowered slowly down in the water. The depth at which the disk is no longer visible is taken as a measure of the transparency of the water. This measure is known as the Secchi depth and is related to water turbidity. [Wikipedia, 2021-09-02] sediment sampler - corer sediment sampler - corer sediment coring device gravity or other coring device used to collect surfacial and near-surficial sediment samples spectrophotometer spectrophotometer spectrophotometer, optical spectrometer, spectrograph or spectroscope An optical spectrometer (spectrophotometer, spectrograph or spectroscope) is an instrument used to measure properties of light over a specific portion of the electromagnetic spectrum, typically used in spectroscopic analysis to identify materials. Butler, L. R. P.; Laqua, K. (1995). "Nomenclature, symbols, units and their usage in spectrochemical analysis-IX. Instrumentation for the spectral dispersion and isolation of optical radiation (IUPAC Recommendations 1995)". Pure Appl. Chem. IUPAC. 67 (10): 1725–1744. doi:10.1351/pac199567101725. A spectrometer is the general term for describing a combination of spectral apparatus with one or more detectors to measure the intensity of one or more spectral bands." temperature sensor temperature sensor A sensor used to measure temperature. thermosalinograph thermosalinograph automated sea surface temperature and salinity instrument, usually attached to the hull of a ship Thermosalinograph is an automated Sea Surface Temperature and Salinity measurement system making measurement on board a ship using a water intake. [https://www.aoml.noaa.gov/phod/tsg/about.php 2021-01-29] titrator titrator titrator transmissometer transmissometer transmissometer Instrument used to measure transmissivity in NODC File Alias F022. trap - plankton trap - plankton one of several specific type of instrument used to capture plankton GYRE Flag: United States Vessel Type: Oceanographic Research IMO: 7318999 DOB: 1973-10 LONGHORN LONGHORN NOAA Ship Chapman Name: NOAAS Chapman (R 446) Namesake: Wilbert McLeod "Wib" Chapman (1910-1970), American fisheries scientist Builder: Bender Shipbuilding and Repair Company, Mobile, Alabama Cost: $3,100,000 (USD) Launched: December 1979 Acquired: May 1980 (delivery) Commissioned: 11 July 1980 Decommissioned: 2 June 1998 Homeport: Pascagoula, Mississippi Identification: IMO number: 7907051 MMSI number: 306082000 Callsign: WTED Fate: Donated to University of Puerto Rico Purchased by Substation Curaçao 2008 [https://en.wikipedia.org/wiki/NOAAS_Chapman_(R_446)] NOAA Ship Malcolm Baldrige Title: NOAA Ship Flag: United States of America Vessel Type: Research Vessel (Oceanographic) DOB: 1968 IMO: 6901907 Hull Classification: OSS 03 Former Name: NOAA Ship RESEARCHER (1988) Decommissioned by NOAA: 1996 NOAA Ship Researcher Title: NOAA Ship Flag: United States of America Vessel Type: Research Vessel (Oceanographic) DOB: 1968 IMO: 6901907 Decommissioned as NOAA Ship RESEARCHER: March 1, 1988 R/V Acadiana Updated information from ICES for the vessel ACADIANA from UNITED STATES. Name : ACADIANA Flag : UNITED STATES - US (ISO Country Code) Title : R/V Platform Class : 31 Research vessel Commissioned Date : 1987 Current Length : 17.7 Notes : WOD code 10013. The vessel is outfitted to support research and educational activities in Louisiana coastal bays and nearshore waters. Vessel active at least since 1987. Additional Information Sources: - http://lumconvessels.com/rv-acadiana - http://pubs.usgs.gov/circ/circ1133/big-sample.html General Comments: Commissioned date is at least from 1987 according to http://pubs.usgs.gov/circ/circ1133/big-sample.html The R/V Acadiana was designed and built by Breaux's Bay craft, Inc. in Loreauville, LA with funding for her construction provided by the Louisiana Universities Marine Consortium. Home port is at the Defelice Marine Center in Cocodrie, LA. The vessel is outfitted to support research and educational activities in Louisiana coastal bays and nearshore waters. Submitted to ICES on 2014-09-25. Confirmed by NOAA on 2015-01-09. R/V Pelican Flag: United States Title: R/V Vessel Type: Research Survey IMO: 8517009 DOB: 198505 Institution: LUMCON/UNOLS Tommy Munro Flag: United States Vessel Type: Oceanographic Research Built: 1981 IMO: 8201088 Institution: Gulf Coast Research Laboratory Information Sources: http://www.coms.usm.edu/research_vessels/tommy.munro.php http://www.e-ships.net/index/T8.shtml Submitted to ICES on 2011-08-11. Confirmed by NOAA on 2012-09-10.