| Row Type
| Variable Name
| Attribute Name
| Data Type
| Value
|
| attribute
| NC_GLOBAL
| acknowledgement
| String
| This dataset aggregates nitrogen observations from hypoxia and nutrient data collected by the Mineral Management Service (MMS) of the Department of the Interior from 1922 to 2014. These historical collections of over 19M data records were initiated by the late Dr. Mathew K. Howard, then the Data Manager at GCOOS, and were only recently reprocessed and published.
|
| attribute
| NC_GLOBAL
| cdm_data_type
| String
| Point
|
| attribute
| NC_GLOBAL
| comment
| String
| The nitrogen hypoxia and nutrient data collected by the Mineral Management Service (MMS) of the Department of the Interior from 1922 to 2014. Data were taken from 34,400 stations from 80 participating organizations. These historical collections of over 19M data records were initiated by the late Dr. Mathew K. Howard, then the Data Manager at GCOOS, and were only recently reprocessed and published. Note that in 2011, MMS became the Bureau of Ocean Energy Management (BOEM), Bureau of Safety and Environmental Enforcement (BSEE), and Office of Natural Resource Revenue (ONRR).
|
| attribute
| NC_GLOBAL
| contributor_name
| String
| Harte Research Institute,TAMUCC
|
| attribute
| NC_GLOBAL
| contributor_role
| String
| publisher
|
| attribute
| NC_GLOBAL
| Conventions
| String
| CF-1.10, ACDD-1.3, COARDS
|
| attribute
| NC_GLOBAL
| creator_email
| String
| data at gcoos.org
|
| attribute
| NC_GLOBAL
| creator_institution
| String
| Gulf of America Coastal Ocean Observing System (GCOOS)
|
| attribute
| NC_GLOBAL
| creator_name
| String
| Harte Research Institute,TAMUCC
|
| attribute
| NC_GLOBAL
| creator_type
| String
| institution
|
| attribute
| NC_GLOBAL
| creator_url
| String
| https://www.harteresearch.org/
|
| attribute
| NC_GLOBAL
| date_created
| String
| 2026-04-01T13:40:51Z
|
| attribute
| NC_GLOBAL
| date_issued
| String
| 2026-04-01T13:40:51Z
|
| attribute
| NC_GLOBAL
| date_metadata_modified
| String
| 2026-04-01T13:40:51Z
|
| attribute
| NC_GLOBAL
| date_modified
| String
| 2026-04-01T13:40:51Z
|
| attribute
| NC_GLOBAL
| Easternmost_Easting
| double
| -80.1961604
|
| attribute
| NC_GLOBAL
| featureType
| String
| Point
|
| attribute
| NC_GLOBAL
| geospatial_bounds
| String
| POLYGON ((-98.086639 24.5684798, -80.1961604 24.5684798, -80.1961604 31.0157358, -98.086639 31.0157358, -98.086639 24.5684798))
|
| attribute
| NC_GLOBAL
| geospatial_bounds_crs
| String
| EPSG:4326
|
| attribute
| NC_GLOBAL
| geospatial_bounds_vertical_crs
| String
| EPSG:5831
|
| attribute
| NC_GLOBAL
| geospatial_lat_max
| double
| 31.0157358
|
| attribute
| NC_GLOBAL
| geospatial_lat_min
| double
| 24.5684798
|
| attribute
| NC_GLOBAL
| geospatial_lat_units
| String
| degrees_north
|
| attribute
| NC_GLOBAL
| geospatial_lon_max
| double
| -80.1961604
|
| attribute
| NC_GLOBAL
| geospatial_lon_min
| double
| -98.086639
|
| attribute
| NC_GLOBAL
| geospatial_lon_units
| String
| degrees_east
|
| attribute
| NC_GLOBAL
| geospatial_vertical_max
| double
| 15.24
|
| attribute
| NC_GLOBAL
| geospatial_vertical_min
| double
| 0.0
|
| attribute
| NC_GLOBAL
| geospatial_vertical_positive
| String
| down
|
| attribute
| NC_GLOBAL
| geospatial_vertical_units
| String
| m
|
| attribute
| NC_GLOBAL
| history
| String
| 2026-04-01T13:40:51Z
|
| attribute
| NC_GLOBAL
| id
| String
| MMS_NUTRIENT_nitrogen
|
| attribute
| NC_GLOBAL
| infoUrl
| String
| https://gcoos.org
|
| attribute
| NC_GLOBAL
| institution
| String
| GCOOS
|
| attribute
| NC_GLOBAL
| keywords
| String
| america, ammonia, ammonium, chemistry, coastal, concentration, control, data, depth, each, earth, earth science, Earth Science > Oceans > Ocean Chemistry > Ammonia, flag, gcoos, gom, gross, gross_range_test_quality_flag, gulf, gulf of america, hypoxia, latitude, longitude, mass_concentration_of_nitrogen_in_sea_water, mass_concentration_of_nitrogen_in_sea_water_qc, measurements, mexico, mms nutrient, modification, mole, mole_concentration_of_ammonium_in_sea_water, n02, name, nh4, nitrate, nitrite, nitrogen, no3, nutrients, observation, observation_organization, observation_station, observing, ocean, oceans, organic, organization, quality, range, science, sea, seawater, station, system, test, time, water
|
| attribute
| NC_GLOBAL
| keywords_vocabulary
| String
| GCMD Science Keywords
|
| attribute
| NC_GLOBAL
| license
| String
| Unrestricted use and distribution
|
| attribute
| NC_GLOBAL
| Northernmost_Northing
| double
| 31.0157358
|
| attribute
| NC_GLOBAL
| product_version
| String
| 1.0
|
| attribute
| NC_GLOBAL
| publisher_address
| String
| 6300 Ocean Drive
|
| attribute
| NC_GLOBAL
| publisher_city
| String
| Corpus Christi
|
| attribute
| NC_GLOBAL
| publisher_country
| String
| USA
|
| attribute
| NC_GLOBAL
| publisher_email
| String
| data at gcoos.org
|
| attribute
| NC_GLOBAL
| publisher_institution
| String
| Gulf of America Coastal Ocean Observing System (GCOOS)
|
| attribute
| NC_GLOBAL
| publisher_name
| String
| Gulf of America Coastal Ocean Observing System (GCOOS)
|
| attribute
| NC_GLOBAL
| publisher_postalcode
| String
| 78412
|
| attribute
| NC_GLOBAL
| publisher_state
| String
| TX
|
| attribute
| NC_GLOBAL
| publisher_type
| String
| institution
|
| attribute
| NC_GLOBAL
| publisher_url
| String
| https://gcoos.org
|
| attribute
| NC_GLOBAL
| references
| String
| https://gcoos.org
|
| attribute
| NC_GLOBAL
| sourceUrl
| String
| (local files)
|
| attribute
| NC_GLOBAL
| Southernmost_Northing
| double
| 24.5684798
|
| attribute
| NC_GLOBAL
| standard_name_vocabulary
| String
| CF Standard Name Table v93
|
| attribute
| NC_GLOBAL
| subsetVariables
| String
| mass_concentration_of_nitrogen_in_sea_water_qc
|
| attribute
| NC_GLOBAL
| summary
| String
| Gulf of Mexico Coastal Observing System (GCOOS) Hypoxia - Nutrients Nitrogen Data. Nitrogen (nitrite, nitrate, ammonia and organic nitrogen) concentration observations collected from MMS NUTRIENT Datasets(1922-2014) in Gulf of America
|
| attribute
| NC_GLOBAL
| time_coverage_duration
| String
| P19103D
|
| attribute
| NC_GLOBAL
| time_coverage_end
| String
| 2014-07-10T15:30:00Z
|
| attribute
| NC_GLOBAL
| time_coverage_start
| String
| 1962-03-21T18:40:00Z
|
| attribute
| NC_GLOBAL
| title
| String
| Nitrogen data from the Hypoxia - Nutrients Datasets collected in the Gulf of Mexico from 1922 to 2014
|
| attribute
| NC_GLOBAL
| Westernmost_Easting
| double
| -98.086639
|
| variable
| time
|
| double
|
|
| attribute
| time
| _CoordinateAxisType
| String
| Time
|
| attribute
| time
| actual_range
| double
| -2.45568E8, 1.4050062E9
|
| attribute
| time
| axis
| String
| T
|
| attribute
| time
| calendar
| String
| julian
|
| attribute
| time
| coverage_content_type
| String
| coordinate
|
| attribute
| time
| ioos_category
| String
| Time
|
| attribute
| time
| long_name
| String
| Time
|
| attribute
| time
| source_name
| String
| observation_time
|
| attribute
| time
| standard_name
| String
| time
|
| attribute
| time
| time_origin
| String
| 01-JAN-1970 00:00:00
|
| attribute
| time
| units
| String
| seconds since 1970-01-01T00:00:00Z
|
| variable
| latitude
|
| double
|
|
| attribute
| latitude
| _CoordinateAxisType
| String
| Lat
|
| attribute
| latitude
| actual_range
| double
| 24.5684798, 31.0157358
|
| attribute
| latitude
| axis
| String
| Y
|
| attribute
| latitude
| colorBarMaximum
| double
| 90.0
|
| attribute
| latitude
| colorBarMinimum
| double
| -90.0
|
| attribute
| latitude
| coverage_content_type
| String
| coordinate
|
| attribute
| latitude
| ioos_category
| String
| Location
|
| attribute
| latitude
| long_name
| String
| Latitude of station
|
| attribute
| latitude
| standard_name
| String
| latitude
|
| attribute
| latitude
| units
| String
| degrees_north
|
| attribute
| latitude
| valid_max
| double
| 90.0
|
| attribute
| latitude
| valid_min
| double
| -90.0
|
| variable
| longitude
|
| double
|
|
| attribute
| longitude
| _CoordinateAxisType
| String
| Lon
|
| attribute
| longitude
| actual_range
| double
| -98.086639, -80.1961604
|
| attribute
| longitude
| axis
| String
| X
|
| attribute
| longitude
| colorBarMaximum
| double
| 180.0
|
| attribute
| longitude
| colorBarMinimum
| double
| -180.0
|
| attribute
| longitude
| coverage_content_type
| String
| coordinate
|
| attribute
| longitude
| ioos_category
| String
| Location
|
| attribute
| longitude
| long_name
| String
| Longitude of station
|
| attribute
| longitude
| standard_name
| String
| longitude
|
| attribute
| longitude
| units
| String
| degrees_east
|
| attribute
| longitude
| valid_max
| double
| 180.0
|
| attribute
| longitude
| valid_min
| double
| -180.0
|
| variable
| observation_organization
|
| String
|
|
| attribute
| observation_organization
| coverage_content_type
| String
| auxiliaryInformation
|
| attribute
| observation_organization
| description
| String
| Name of the organization that contributed each observation
|
| attribute
| observation_organization
| long_name
| String
| Organization Name for each observation
|
| attribute
| observation_organization
| units
| String
| 1
|
| variable
| observation_station
|
| String
|
|
| attribute
| observation_station
| coverage_content_type
| String
| auxiliaryInformation
|
| attribute
| observation_station
| description
| String
| Name of the station that contributed each observation
|
| attribute
| observation_station
| long_name
| String
| Station Name for each observation
|
| attribute
| observation_station
| units
| String
| 1
|
| variable
| depth
|
| double
|
|
| attribute
| depth
| _CoordinateAxisType
| String
| Height
|
| attribute
| depth
| _CoordinateZisPositive
| String
| down
|
| attribute
| depth
| actual_range
| double
| 0.0, 15.24
|
| attribute
| depth
| axis
| String
| Z
|
| attribute
| depth
| colorBarMaximum
| double
| 8000.0
|
| attribute
| depth
| colorBarMinimum
| double
| -8000.0
|
| attribute
| depth
| colorBarPalette
| String
| TopographyDepth
|
| attribute
| depth
| coverage_content_type
| String
| coordinate
|
| attribute
| depth
| ioos_category
| String
| Location
|
| attribute
| depth
| long_name
| String
| Vertical position
|
| attribute
| depth
| positive
| String
| down
|
| attribute
| depth
| source_name
| String
| observation_vertical_position
|
| attribute
| depth
| standard_name
| String
| depth
|
| attribute
| depth
| units
| String
| m
|
| variable
| mass_concentration_of_nitrogen_in_sea_water
|
| double
|
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water
| actual_range
| double
| 0.0, 136.0
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water
| colorBarMaximum
| double
| 5.0
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water
| colorBarMinimum
| double
| 0.0
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water
| coverage_content_type
| String
| physicalMeasurement
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water
| long_name
| String
| Nitrogen (nitrite, nitrate, ammonia and organic nitrogen) concentration
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water
| standard_name
| String
| mole_concentration_of_ammonium_in_sea_water
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water
| units
| String
| mg l-1
|
| variable
| mass_concentration_of_nitrogen_in_sea_water_qc
|
| int
|
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water_qc
| _FillValue
| int
| 2147483647
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water_qc
| actual_range
| int
| 2, 2
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water_qc
| colorBarMaximum
| double
| 10.0
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water_qc
| colorBarMinimum
| double
| 0.0
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water_qc
| coverage_content_type
| String
| qualityInformation
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water_qc
| description
| String
| Flag indicating quality control for each Nitrogen (nitrite, nitrate, ammonia and organic nitrogen) concentration observation
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water_qc
| flag_meanings
| String
| pass quality_not_evaluated suspect_or_high_interest failed missing_data
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water_qc
| flag_values
| int
| 1, 2, 3, 4, 9
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water_qc
| long_name
| String
| Quality control flag for Nitrogen (nitrite, nitrate, ammonia and organic nitrogen) concentration measurements
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water_qc
| standard_name
| String
| gross_range_test_quality_flag
|
| attribute
| mass_concentration_of_nitrogen_in_sea_water_qc
| units
| String
| 1
|