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Oceanographic, surface meteorological, and chemical water quality parameter data collected from moored Real-time Coastal Observation Network (ReCON) buoys in the Great Lakes region by NOAA Great Lakes Environmental Research Laboratory since 2004


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            title:  Oceanographic, surface meteorological, and chemical water quality parameter data collected from moored Real-time Coastal Observation Network (ReCON) buoys in the Great Lakes region by NOAA Great Lakes Environmental Research Laboratory since 2004
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                date:  2020-04-10
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                date:  2022-10-27
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                  Anchor:  DOI 10.25921/jvks-b587
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                  Anchor:  NCEI Dataset ID gov.noaa.nodc:GLERL-ReCON
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                  Anchor:  https://ror.org/04r0wrp59 NOAA National Centers for Environmental Information
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                  Anchor:  https://orcid.org/0000-0003-1541-3134 Lacey Mason
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                  Anchor:  https://ror.org/01jeee804 NOAA Great Lakes Environmental Research Laboratory (GLERL)
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                  Anchor:  https://ror.org/02z5nhe81 National Oceanic and Atmospheric Administration (NOAA)
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                  Anchor:  https://ror.org/01jeee804 NOAA Great Lakes Environmental Research Laboratory (GLERL)
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                  Anchor:  https://ror.org/01jeee804 NOAA Great Lakes Environmental Research Laboratory (GLERL)
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        abstract:  NOAA Great Lakes Environmental Research Laboratory has collected observations from in-situ Real-time Coastal Observation Network (ReCON) moored buoys during the open water season, in the Great Lakes since 2004. The ReCON buoy network provides continuous, real-time observations facilitates modification of sampling parameters in anticipation of episodic events, facilitates the collection of field samples in response to episodic events, supports long-term research, and contributes to sensor and system development. Parameters collected include air temperature, chlorophyll, conductivity, current profiles, depth, dissolved organic matter, dissolved oxygen, photosynthetically active radiation (PAR), pressure (hydrostatic), specific conductivity, total dissolved solids, water temperature, wind direction and speed, and wave height, direction and period. Five quality assurance for real-time oceanographic data (QARTOD) tests were run on the observations including gross range, climatological, spike, rate of change, and flat line tests. The highest value from the five tests was included under the “Qartod” column. If data were known to be invalid, that line of data was removed from the dataset.
        purpose:  The goal of the ReCON program is to develop a national network of coastal buoys capable of seabed to sea-surface observations. This wireless observation system, with shore stations at coastal locations covering approximately 800 square miles of sea surface, uses commercially available networking equipment allowing straightforward integration into a nationwide network. Each system collects meteorological data and provides sub-surface measurements of chemical, biological, and physical parameters. The system is designed to allow controlled access to multi-institutional users through surface buoys and sub-surface sensor guest ports located on an underwater hub. The observation network currently provides environmental data to state, federal, and university researchers, educators and resource managers.
        credit:  Funding Agency: Great Lakes Observing System
        credit:  Funding Agency: NOAA Great Lakes Environmental Research Laboratory
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/obstype/details/3 chemical
            keyword:
              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/obstype/details/63 in situ
            keyword:
              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/obstype/details/35 laboratory analyses
            keyword:
              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/obstype/details/14 physical
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  NODC OBSERVATION TYPES THESAURUS
                date: (inapplicable)
        descriptiveKeywords:  (MD_Keywords)
            keyword:
              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/10698 moored buoys
            keyword:
              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/2565 moorings
            type:  (MD_KeywordTypeCode) platform
            thesaurusName:  (CI_Citation)
                title:  NODC PLATFORM NAMES THESAURUS
                date: (inapplicable)
        descriptiveKeywords:  (MD_Keywords)
            keyword:
              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1552 NOAA Great Lakes Environmental Research Laboratory
            type:  (MD_KeywordTypeCode) dataCentre
            thesaurusName:  (CI_Citation)
                title:  NODC COLLECTING INSTITUTION NAMES THESAURUS
                date: (inapplicable)
        descriptiveKeywords:  (MD_Keywords)
            keyword:
              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1452 National Oceanic and Atmospheric Administration
            keyword:
              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1552 NOAA Great Lakes Environmental Research Laboratory
            type:  (MD_KeywordTypeCode) dataCentre
            thesaurusName:  (CI_Citation)
                title:  NODC SUBMITTING INSTITUTION NAMES THESAURUS
                date: (inapplicable)
        descriptiveKeywords:  (MD_Keywords)
            keyword:
              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/project/details/735 Great Lakes Observing System (GLOS)
            keyword:
              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/project/details/696 Realtime Environmental Coastal Observation Network (RECON)
            type:  (MD_KeywordTypeCode) project
            thesaurusName:  (CI_Citation)
                title:  NODC PROJECT NAMES THESAURUS
                date: (inapplicable)
        descriptiveKeywords:  (MD_Keywords)
            keyword:
              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/seaname/details/145 Great Lakes
            type:  (MD_KeywordTypeCode) place
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                title:  NODC SEA AREA NAMES THESAURUS
                date: (inapplicable)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  oceanography
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  WMO_CategoryCode
                date:  (CI_Date)
                    date:  2012-09-15
                    dateType:  (CI_DateTypeCode) publication
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Cooperative Institute for Limnology and Ecosystems Research, University of Michigan
            keyword:  NOAA/OAR/GLERL
            type:  (MD_KeywordTypeCode) dataCentre
            thesaurusName:  (CI_Citation)
                title:  Contributing Organizations
                date: (inapplicable)
        descriptiveKeywords:  (MD_Keywords)
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/8885d56e-58ca-40c1-aa6a-3e79fb6f34e3 DOC/NOAA > National Oceanic & Atmospheric Administration
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/c5021544-efdc-4591-8ac2-5105640c7136 DOC/NOAA/OAR/GLERL > Great Lakes Environmental Research Laboratory, OAR, NOAA, U.S. Department of Commerce
            type:  (MD_KeywordTypeCode) dataCentre
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Data Center Keywords
                date:  (CI_Date)
                    date:  2025
                    dateType:  (CI_DateTypeCode) revision
                edition:  21
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
                    contactInfo:  (CI_Contact)
                        address:  (CI_Address)
                            city:  Greenbelt
                            administrativeArea:  MD
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
                            protocol:  HTTPS
                            name:  GCMD Keyword Forum Page
                            description:  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
                            function:  (CI_OnLineFunctionCode) information
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        descriptiveKeywords:  (MD_Keywords)
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/b1ad1670-6419-4bd6-ab69-4a02f54b2ff8 IOOS > Integrated Ocean Observing System
            type:  (MD_KeywordTypeCode) project
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Project Keywords
                date:  (CI_Date)
                    date:  2025
                    dateType:  (CI_DateTypeCode) revision
                edition:  21
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
                    contactInfo:  (CI_Contact)
                        address:  (CI_Address)
                            city:  Greenbelt
                            administrativeArea:  MD
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
                            protocol:  HTTPS
                            name:  GCMD Keyword Forum Page
                            description:  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
                            function:  (CI_OnLineFunctionCode) information
                    role:  (CI_RoleCode) custodian
        descriptiveKeywords:  (MD_Keywords)
            keyword:
              Anchor:  https://www.glerl.noaa.gov/metdata/metReCON.html Real-Time Coastal Observation Network (ReCON)
            type:  (MD_KeywordTypeCode) project
            thesaurusName:  (CI_Citation)
                title:  Provider Keywords
                date: (inapplicable)
        descriptiveKeywords:  (MD_Keywords)
            keyword:
              Anchor:  https://www.glerl.noaa.gov/metdata/metReCON.html Real-Time Coastal Observation Network (ReCON)
            type:  (MD_KeywordTypeCode) project
            thesaurusName:  (CI_Citation)
                title:  Provider Project Names
                date: (inapplicable)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  Great Lakes Observing System (GLOS)
            keyword:  Realtime Environmental Coastal Observation Network (RECON)
            type:  (MD_KeywordTypeCode) project
            thesaurusName:  (CI_Citation)
                title:  Provider Projects
                date: (inapplicable)
        descriptiveKeywords:  (MD_Keywords)
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/08fd82a1-4370-46a2-82ea-94c0f91498a7 EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/35e1f93b-99b3-4430-b477-0ecafa80d67a EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/e987550e-d443-48eb-93eb-0bc47a62d4b4 EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND DIRECTION
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/a92f49f3-e2ee-4ef4-b064-39311ffb95d3 EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS > WIND SPEED
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/ca477721-473b-40d7-a72b-4ffa963e48fb EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/ce4b2c6e-3d69-4cf1-8416-c36e5f9b1b2c EARTH SCIENCE > OCEANS > MARINE SEDIMENTS
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/7989eae1-8ea3-4039-af0c-9130de145449 EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CHLOROPHYLL
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/db5357c9-cc9d-4693-86fe-6bb88555d434 EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/b2bdeb71-81b5-43e6-a8b1-b09c215c8d1a EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ORGANIC MATTER
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/90aa8838-79bd-4b28-b518-8217e863c385 EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/4433600b-f323-458a-b295-352f939aab6b EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PH
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/510c5f78-e19e-4ce4-b59a-8937aeb84631 EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/b7410899-350a-4443-9430-c7fe1fa3a499 EARTH SCIENCE > OCEANS > OCEAN OPTICS > PHOTOSYNTHETICALLY ACTIVE RADIATION
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/f0d83687-bc0a-4491-bb3e-697f1018da13 EARTH SCIENCE > OCEANS > OCEAN OPTICS > TURBIDITY
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/dd025312-0d27-44e0-ae05-7cfcc1aa17f0 EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/46206e8c-8def-406f-9e62-da4e74633a58 EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/1ac6850e-9266-4e90-ba83-b6a6cc4ae365 EARTH SCIENCE > OCEANS > OCEAN WAVES > SIGNIFICANT WAVE HEIGHT
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/0fc68280-1361-43e1-bc5a-40c49e9679b7 EARTH SCIENCE > OCEANS > OCEAN WAVES > WAVE HEIGHT
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/99ea6719-b751-4a4f-95d4-aaa02e961bc1 EARTH SCIENCE > OCEANS > OCEAN WAVES > WAVE PERIOD
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/e52114b2-adbc-4e3e-9c87-1a7f245fe5ef EARTH SCIENCE > OCEANS > OCEAN WAVES > WAVE SPEED/DIRECTION
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/7041e51c-e2de-405a-b154-6016f624f54f EARTH SCIENCE > OCEANS > SALINITY/DENSITY > CONDUCTIVITY
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/d73e969a-4b66-4713-8d63-fa3cbb1e25e3 EARTH SCIENCE > OCEANS > SEA ICE
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/ba506291-2799-4877-a886-8e906704a060 EARTH SCIENCE > OCEANS > WATER QUALITY > HARMFUL ALGAL BLOOM (HABs)
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/0eaf009f-f92b-48b5-8a71-9c44c80d03d4 EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > WATER CHARACTERISTICS > TURBIDITY
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Science Keywords
                date:  (CI_Date)
                    date:  2025
                    dateType:  (CI_DateTypeCode) revision
                edition:  21
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
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                        address:  (CI_Address)
                            city:  Greenbelt
                            administrativeArea:  MD
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
                            protocol:  HTTPS
                            name:  GCMD Keyword Forum Page
                            description:  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
                            function:  (CI_OnLineFunctionCode) information
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        descriptiveKeywords:  (MD_Keywords)
            keyword:  Campbell Scientific 109 Temperature Probe
            keyword:  R.M. Young 05106 Marine Wind Monitor
            keyword:  RD Instruments 600 KHz H-ADCP Current Meter
            keyword:  ADCP 300 KHz WorkHorse Meter
            keyword:  ADCP WorkHorse Meter
            keyword:  AirMar Weather Station Model 200WX
            keyword:  AirMar Weather Station Model 200WX & R.M. Young 05106 Marine Wind Monitor
            keyword:  AirMar Weather Station Model 200WX & R.M. Young 61302V
            keyword:  AirMar Weather Station Model 200WX & Vaisala HMP 110 RH
            keyword:  AirMar Weather Station Model 200WX &R.M. Young 05106 Marine Wind Monitor
            keyword:  CE Instruments EA 11120 CHN analyzer (ThermoQuest Italia, Milan Italy)
            keyword:  Campbell Scientific 109 Temperature Probe
            keyword:  Campbell Scientific 109 Temperature Probe & AirMar Weather Station Model 200WX
            keyword:  LI-COR LI-190R PAR Sensor
            keyword:  Mensor Series 6000 Digital Pressure Sensor
            keyword:  Nortek AWAC 600 KHz Meter
            keyword:  Paroscientific Digiquartz 8060 Pressure Sensor
            keyword:  R.M. Young 05106 Marine Wind Monitor
            keyword:  R.M. Young 05106 Marine Wind Monitor (using KVH AutoComp 1000 Fluxgate Compass for north reference)
            keyword:  RD Instruments 600 KHz
            keyword:  RD Instruments 600 KHz H-ADCP Current Meter
            keyword:  Sub-Surface Sensors
            keyword:  Yellow Springs YSI 6000/6600 Sonde
            keyword:  Yellow Springs YSI EXO2 Sonde
            keyword:  Yellow Springs YSI EXO2 Sonde & Campbell Scientific 109 Temp. Probe
            keyword:  Yellow Springs YSI EXO2 Sonde & Nortek AWAC 600 KHz Meter
            keyword:  Yellow Springs YSI EXO2 Sonde & Nortek AWAC 600 KHz Meter & Campbell Scientific 109 Temp. Probe
            keyword:  Yellow Springs YSI EXO2 Sonde & Nortek AWAC 600 KHz Meter & SeaBird SBE16plus CTD Sensor
            keyword:  Yellow Springs YSI EXO2 Sonde & SeaBird SBE16plus CTD Sensor
            keyword:  Yellow Springs YSI EXO2 Sonde & SeaBird SBE16plus CTD Sensor & Nortek AWAC 600 KHz Meter & Campbell Scientific 109 Temp. Probe
            keyword:  Yellow Springs YSI EXO2 Sonde& Campbell Scientific 109 Temp. Probe
            keyword:  Yellow Springs YSI EXO2 Sonde&Nortek AWAC 600 KHz Meter & Campbell Scientific 109 Temp. Probe
            keyword:  mass spectrometer
            type:  (MD_KeywordTypeCode) instrument
            thesaurusName:  (CI_Citation)
                title:  Provider Instruments
                date: (inapplicable)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  AIR TEMPERATURE
            keyword:  Buoy Battery Voltage
            keyword:  Buoy Bus Voltage
            keyword:  CDMA Received Signal Level
            keyword:  CURRENT SPEED - EAST/WEST COMPONENT (U)
            keyword:  CURRENT SPEED - NORTH/SOUTH COMPONENT (V)
            keyword:  DEPTH - BOTTOM
            keyword:  DEPTH - OBSERVATION
            keyword:  DEPTH - SENSOR, WATER TEMPERATURE
            keyword:  Dissolved Oxygen - Saturation
            keyword:  Fluorescent Dissolved Organic Matter (fDOM)
            keyword:  Ice Data
            keyword:  Magnetic Compass Heading
            keyword:  Modem Data Transfer Rate
            keyword:  Phycocyanin (blue-green algae)
            keyword:  Pitch Angle
            keyword:  Potential Hydrogen
            keyword:  Roll Angle
            keyword:  SEDIMENTS - DRY WEIGHT
            keyword:  SEDIMENTS - ORGANIC CARBON
            keyword:  SEDIMENTS - TOTAL CARBON
            keyword:  Sediments - organic nitrogen
            keyword:  Significant Wave Height
            keyword:  Solar Panel Voltage
            keyword:  Specific Conductivity
            keyword:  Total Dissolved Solids (TDS)
            keyword:  Underwater Hub Bus Voltage
            keyword:  WIND DIRECTION
            keyword:  WIND SPEED
            keyword:  WIND SPEED - MAXIMUM
            keyword:  Wave Direction
            keyword:  Wave Period
            keyword:  altitude
            keyword:  atmospheric pressure
            keyword:  channel flow rate
            keyword:  mass flux
            keyword:  wind speed maximum
            type:  (MD_KeywordTypeCode) theme
            thesaurusName:  (CI_Citation)
                title:  Provider Keywords
                date: (inapplicable)
        descriptiveKeywords:  (MD_Keywords)
            keyword:  moored buoy (48MB)
            keyword:  Saginaw Bay Light #1 station
            keyword:  moored bouy
            keyword:  moored buoy
            keyword:  moorings
            type:  (MD_KeywordTypeCode) platform
            thesaurusName:  (CI_Citation)
                title:  Provider Platform Names
                date: (inapplicable)
        descriptiveKeywords:  (MD_Keywords)
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/ca8de50f-b795-42b7-9301-8baffe2de0f3 ADCP > Acoustic Doppler Current Profiler
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/d0cf9340-dc51-447f-a151-f6cdad265d9a ANEMOMETERS > ANEMOMETERS
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/0bf12743-3ab8-4be7-9b48-b565723ed0ad BAROMETERS > BAROMETERS
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/01cc0beb-7c9a-40ed-ad86-0661b41aee53 CTD > Conductivity, Temperature, Depth
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/0ae93838-ebae-43cf-89bb-f6638300e385 CURRENT METERS
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/68e079d2-303e-408c-932b-d98d2a3385e7 DROPSONDES
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/09c35c61-d1ed-4591-b4d5-c539a2a0aec2 MASS SPECTROMETERS > MASS SPECTROMETERS
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/a3423d6a-ffd1-4269-9a31-08106418a986 PAR SENSORS > Photosynthetically Active Radiation Sensors
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/fd1ac194-aa45-44b4-b155-8ef37c977736 PRESSURE SENSORS > PRESSURE SENSORS
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/2ce8f7cd-ee26-4f43-83cb-5113ec8293dc TEMPERATURE PROBES > TEMPERATURE PROBES
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/1cf3fcba-3195-45b8-a14c-dbaf7111b6df THERMOMETERS > THERMOMETERS
            type:  (MD_KeywordTypeCode) instrument
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Instrument Keywords
                date:  (CI_Date)
                    date:  2025
                    dateType:  (CI_DateTypeCode) revision
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                    description:  Search for data granules belonging to this collection (a granule is the smallest aggregation of data that can be independently described and retrieved).
                    function:  (CI_OnLineFunctionCode) search
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) series
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0209234 v1.1 was published.
                dateTime:
                  DateTime:  2020-04-10T01:10:32Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0209234 was revised and v2.2 was published.
                dateTime:
                  DateTime:  2020-04-23T21:34:33Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0210569 v1.1 was published.
                dateTime:
                  DateTime:  2020-05-29T21:10:32Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0211006 v1.1 was published.
                dateTime:
                  DateTime:  2020-07-06T14:31:35Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0211085 v1.1 was published.
                dateTime:
                  DateTime:  2020-07-10T19:29:18Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0211086 v1.1 was published.
                dateTime:
                  DateTime:  2020-07-10T21:01:41Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0211090 v1.1 was published.
                dateTime:
                  DateTime:  2020-07-15T20:34:28Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0215154 v1.1 was published.
                dateTime:
                  DateTime:  2020-07-31T16:29:19Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0213376 v1.1 was published.
                dateTime:
                  DateTime:  2020-07-31T19:13:15Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0213627 v1.1 was published.
                dateTime:
                  DateTime:  2020-07-31T20:20:23Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0210871 v1.1 was published.
                dateTime:
                  DateTime:  2020-09-10T13:00:55Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0219910 v1.1 was published.
                dateTime:
                  DateTime:  2020-09-10T18:09:13Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0210803 v1.1 was published.
                dateTime:
                  DateTime:  2020-09-14T15:59:38Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0210662 v1.1 was published.
                dateTime:
                  DateTime:  2020-09-14T15:59:53Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0210802 v1.1 was published.
                dateTime:
                  DateTime:  2020-09-14T17:06:27Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0213627 was revised and v2.2 was published.
                dateTime:
                  DateTime:  2020-10-28T19:29:55Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0241611 v1.1 was published.
                dateTime:
                  DateTime:  2021-12-10T17:07:32Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0251656 v1.1 was published.
                dateTime:
                  DateTime:  2022-05-09T14:02:35Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0252118 v1.1 was published.
                dateTime:
                  DateTime:  2022-05-11T15:44:54Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0252119 v1.1 was published.
                dateTime:
                  DateTime:  2022-05-11T15:54:06Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0253464 v1.1 was published.
                dateTime:
                  DateTime:  2022-06-02T17:03:45Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0254011 v1.1 was published.
                dateTime:
                  DateTime:  2022-06-28T21:04:14Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0253293 v1.1 was published.
                dateTime:
                  DateTime:  2022-06-29T22:42:40Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0254753 v1.1 was published.
                dateTime:
                  DateTime:  2022-07-13T15:24:30Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0253924 v1.1 was published.
                dateTime:
                  DateTime:  2022-07-22T21:22:56Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0256368 v1.1 was published.
                dateTime:
                  DateTime:  2022-08-26T20:09:54Z
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0266598 v1.1 was published.
                dateTime:
                  DateTime:  2022-10-27T00:19:33Z
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) asNeeded
        maintenanceNote:  Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.
        contact:  (CI_ResponsibleParty)
            organisationName:  NOAA National Centers for Environmental Information
            role:  (CI_RoleCode) custodian
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    acquisitionInformation:  (MI_AcquisitionInformation)
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  ADCP
            type:  ADCP
            description:  Acoustic Doppler Current Profiler The Acoustic Doppler Current Profiler (ADCP) measures currents beneath a ship while underway. Sound signals sent from the moving ship bounce back to receivers aboard the ship. This provides a profile of water movement relative to the ship-precise modern navigation, allowing the ship's motion to be subtracted from the data. These devices are also used on moorings and profilers and, along with acoustic backscattering, measure animal biomass. Particles in the path of the sound waves, mostly plankton, reflect a small part of the sound energy back toward receivers, allowing researchers to make remote estimates of the sizes and numbers of animals present in the water column. Before the 1970's, the most technologically advanced instrument used to measure water velocity was known as a Doppler speed log. This evolved into the first commercial ADCP, produced in the mid-1970's, which used averaging. Later in the 1970's, the first vessel-mounted ADCP was developed to measure water velocity more accurately and to allow measurement in range cells over a depth profile. As instruments evolved, so did new techniques in Doppler signal processing. Initially, Doppler speed logs used simple analog signal processing methods, which are still used in some commercial speed logs today. However, the first ADCPs incorporated analog-to-digital signal conversion over a narrow communication bandwidth. Around 1990, this technique was developed into broadband signal processing. Since then, broadband ADCPs have been able to generate very accurate, real-time velocity measurements.
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  anemometer
            type:  anemometer
            description:  measures wind speed An anemometer is an instrument that measures wind speed. Note that an aerovane (insttypes_id 175) is an anemometer which has a tail and a propeller to measure the speed and direction of the wind.
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  barometer
            type:  barometer
            description:  Barometers are instruments for measuring atmospheric pressure; two types include mercury barometers and aneroid barometers.
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  buoy
            type:  buoy
            description:  generic type of floating instrumentation package
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  buoy - moored buoy
            type:  buoy - moored buoy
            description:  buoy - moored buoy
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  CTD
            type:  CTD
            description:  Conductivity-Temperature-Depth probe
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  CTD - moored CTD
            type:  CTD - moored CTD
            description:  CTD - moored CTD
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  current meter
            type:  current meter
            description:  current meter
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  laboratory analysis
            type:  laboratory analysis
            description:  use as an observation type
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  mass spectrometer
            type:  mass spectrometer
            description:  Instrument that measure the massess and relative concentrations of atoms and molecules
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  meteorological sensor
            type:  meteorological sensor
            description:  Any meteorological sensor, but also see specific instruments such as aerovane, anemometer, etc.
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  multi-parameter water quality sensor
            type:  multi-parameter water quality sensor
            description:  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).
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  oceanic dropsonde
            type:  oceanic dropsonde
            description:  The oceanic dropsonde, or dropsonde float, is a free falling instrument that records the temperature, conductivity, pressure and average current velocity in a vertical column of water. The instrument is dropped into the ocean at a known position. It descends at a constant rate to the bottom; weights are released on bottom contact, and then the instrument ascends to the surface. The distance between the drop point and the point were the instruments first surfaces, represents the total vertically accumulated drift during the period of descent and ascent.
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  PAR Sensor
            type:  PAR Sensor
            description:  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)
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  pressure sensor
            type:  pressure sensor
            description:  GCMD instruments - In Situ/Laboratory Instruments > Pressure/Height Meters > PRESSURE SENSORS ASFA Thesaurus - pressure sensors http://www4.fao.org/asfa/asfa.htm
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  temperature probe
            type:  temperature probe
            description:  For example, OMEGA temperature probe PR-11-2-100-1/8-6-e Vaisala HUMICAP® Humidity and Temperature Probe HMP155
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  thermometer
            type:  thermometer
            description:  generic thermometer or reversing thermometer use thermometer when temperature is a data type, but the exact instrument used to measure temperature is unknown
        platform:  (MI_Platform)
            identifier:  (MD_Identifier)
                code:  moored buoys
            description:  created for MOORED BUOYS OF ITALY, but became used as a generic MOORED BUOY keyword. see platforms_id 13759.
            instrument: (missing)
        platform:  (MI_Platform)
            identifier:  (MD_Identifier)
                code:  moorings
            description:  entry created as MOORINGS OF UNITED STATES, but has been used as a generic MOORINGS entry.
            instrument: (missing)