NCDC feed of Global Telecommunication System (GTS) marine observations in International Maritime Meteorological Archive (IMMA) Format

The data contained here are surface marine observations from many different sources via the NCDC Global Telecommunication System (GTS) Marine in International Maritime Meteorological Archive (IMMA) format. The observations are obtained exclusively via the NCDC GTS stream and derives primarily from ships (merchant, ocean research, fishing, navy, etc.) and moored and drifting buoys. Each report contains individual observations of meteorological and oceanographic variables, such as sea surface and air temperatures, winds, pressure, humidity, wet bulb, dew point, ocean waves and cloudiness. NCDC takes the various observations and converts the GTS data to a standard IMMA format. This allows the observations to be used in a cohesive standard for input to larger datasets, such as the International Comprehensive Ocean-Atmosphere Data Set (ICOADS) Near-Real-Time (NRT) product. The dataset will be produced and archived monthly. Spatial coverage is global and the current period of record for these files will begin in January 2008 to the most current month. The data will be formated to the most current IMMA standard in ASCII file format.

Data and Resources

Field Value
accessLevel public
accrualPeriodicity R/P1M
bureauCode {006:48}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier gov.noaa.ncdc:C00871
language {en-US}
modified 2015-06-16T00:00:00
old-spatial {"type": "Polygon", "coordinates": [[[-180.0, -90.0], [180.0, -90.0], [180.0, 90.0], [-180.0, 90.0], [-180.0, -90.0]]]}
programCode {006:059}
publisher DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce (Point of Contact)
resource-type Dataset
source_datajson_identifier true
source_hash 3747f58dd06eafd9bd049ee8decc3ab683a81777
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-180.0, -90.0], [180.0, -90.0], [180.0, 90.0], [-180.0, 90.0], [-180.0, -90.0]]]}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • anemometers
  • barometers
  • bathythermographs
  • ckan
  • drifting-buoys
  • earth-science-atmosphere-air-quality-visibility
  • earth-science-atmosphere-atmospheric-pressure-atmospheric-pressure-measurements
  • earth-science-atmosphere-atmospheric-pressure-pressure-tendency
  • earth-science-atmosphere-atmospheric-pressure-sea-level-pressure
  • earth-science-atmosphere-atmospheric-temperature-dew-point-temperature
  • earth-science-atmosphere-atmospheric-temperature-surface-air-temperature
  • earth-science-atmosphere-atmospheric-water-vapor-humidity
  • earth-science-atmosphere-atmospheric-winds-surface-winds
  • earth-science-atmosphere-clouds-cloud-properties-cloud-amount-frequency
  • earth-science-atmosphere-clouds-cloud-properties-cloud-ceiling
  • earth-science-atmosphere-clouds-cloud-properties-cloud-height
  • earth-science-atmosphere-clouds-cloud-properties-cloud-types
  • earth-science-atmosphere-precipitation-hail
  • earth-science-atmosphere-precipitation-precipitation-amount
  • earth-science-atmosphere-precipitation-rain
  • earth-science-atmosphere-precipitation-sleet
  • earth-science-atmosphere-precipitation-snow
  • earth-science-oceans-ocean-pressure-sea-level-pressure
  • earth-science-oceans-ocean-temperature-sea-surface-temperature
  • earth-science-oceans-ocean-waves-swells
  • earth-science-oceans-ocean-waves-wave-height
  • earth-science-oceans-ocean-waves-wave-period
  • earth-science-oceans-ocean-waves-wave-speed-direction
  • earth-science-oceans-sea-ice-ice-edges
  • earth-science-oceans-sea-ice-sea-ice-concentration
  • geo
  • geographic-region-global-ocean
  • geoss
  • hygrometers
  • in-situ-ocean-based-platforms-buoys
  • in-situ-ocean-based-platforms-ocean-platform-ocean-stations
  • in-situ-ocean-based-platforms-ocean-platform-ocean-stations-c-man-coastal-marine-network
  • in-situ-ocean-based-platforms-ocean-platform-ocean-stations-ocean-weather-stations
  • in-situ-ocean-based-platforms-ships
  • national
  • north-america
  • psychrometers
  • temperature-sensors
  • thermometers
  • united-states
  • vertical-location-sea-surface
  • vertical-location-troposphere
  • visual-observations
  • wet-bulb-thermometers
  • wind-vanes
isopen False
license_id notspecified
license_title License not specified
maintainer DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
maintainer_email ncdc.metadata@noaa.gov
metadata_created 2025-11-19T17:29:48.520715
metadata_modified 2025-11-19T17:29:48.520722
notes The data contained here are surface marine observations from many different sources via the NCDC Global Telecommunication System (GTS) Marine in International Maritime Meteorological Archive (IMMA) format. The observations are obtained exclusively via the NCDC GTS stream and derives primarily from ships (merchant, ocean research, fishing, navy, etc.) and moored and drifting buoys. Each report contains individual observations of meteorological and oceanographic variables, such as sea surface and air temperatures, winds, pressure, humidity, wet bulb, dew point, ocean waves and cloudiness. NCDC takes the various observations and converts the GTS data to a standard IMMA format. This allows the observations to be used in a cohesive standard for input to larger datasets, such as the International Comprehensive Ocean-Atmosphere Data Set (ICOADS) Near-Real-Time (NRT) product. The dataset will be produced and archived monthly. Spatial coverage is global and the current period of record for these files will begin in January 2008 to the most current month. The data will be formated to the most current IMMA standard in ASCII file format.
num_resources 2
num_tags 52
title NCDC feed of Global Telecommunication System (GTS) marine observations in International Maritime Meteorological Archive (IMMA) Format