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International Comprehensive Ocean Atmosphere Data Set (ICOADS) in Near-Real Time (NRT) Version 2.5 (Version Superseded)

Published by DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: April 12, 2026 at 09:17 PM | Dataset Last Updated: October 03, 2019 at 12:00 AM
**Please note, this dataset has been superseded by a newer version (see below). Users should not use this version except in rare cases (e.g., when reproducing previous studies that used this version).** The International Comprehensive Ocean-Atmosphere Data Set (ICOADS) Near-Real-Time (NRT) product is an extension of the official ICOADS dataset with preliminary Global Telecommunication System (GTS) data. The data is only considered 'preliminary' until fully incorporated into a full update of the ICOADS dataset. This data set is a merged product from various marine GTS data containing surface marine observations from many different observing systems, creating a complete and heterogeneous collection of surface marine data. Observations are taken 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. The data are marine GTS data in IMMA format that are quality controlled and blended together, first with duplicates (Intermediate product), then quality controlled for final product with a final output summary. The intermediate output is used to conduct studies on the GTS transmissions, duplicates, ship tracking, etc. Then the data is blended through a duplicate elimination routine (dupelim) for a single monthly product. The Output Summary product is a statistical summary of the dataset along with justifications for duplicate deletions that occurred during the blending process. User groups include sea surface temperature analysis, global surface temperature analysis, model/reanalysis input, and general ocean research. 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. Any updates will not be incorporated in this dataset, but will be added to the new releases of the official ICOADS dataset in delayed mode. The data will be formated to the most current IMMA standard in ASCII file format.

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Earth Science > Atmosphere > Air Quality > Visibility Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Humidity Earth Science > Atmosphere > Atmospheric Winds > Surface Winds Earth Science > Atmosphere > Atmospheric Pressure > Pressure Tendency Earth Science > Atmosphere > Atmospheric Pressure > Sea Level Pressure Earth Science > Atmosphere > Atmospheric Temperature > Dew Point Temperature

Complete Metadata
@type dcat:Dataset
accessLevel non-public
contactPoint 
                                            {
  "fn": "NOAA National Centers for Environmental Information",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:ncei.orders@noaa.gov"
}
describedByType application/octet-steam
description **Please note, this dataset has been superseded by a newer version (see below). Users should not use this version except in rare cases (e.g., when reproducing previous studies that used this version).** The International Comprehensive Ocean-Atmosphere Data Set (ICOADS) Near-Real-Time (NRT) product is an extension of the official ICOADS dataset with preliminary Global Telecommunication System (GTS) data. The data is only considered 'preliminary' until fully incorporated into a full update of the ICOADS dataset. This data set is a merged product from various marine GTS data containing surface marine observations from many different observing systems, creating a complete and heterogeneous collection of surface marine data. Observations are taken 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. The data are marine GTS data in IMMA format that are quality controlled and blended together, first with duplicates (Intermediate product), then quality controlled for final product with a final output summary. The intermediate output is used to conduct studies on the GTS transmissions, duplicates, ship tracking, etc. Then the data is blended through a duplicate elimination routine (dupelim) for a single monthly product. The Output Summary product is a statistical summary of the dataset along with justifications for duplicate deletions that occurred during the blending process. User groups include sea surface temperature analysis, global surface temperature analysis, model/reanalysis input, and general ocean research. 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. Any updates will not be incorporated in this dataset, but will be added to the new releases of the official ICOADS dataset in delayed mode. The data will be formated to the most current IMMA standard in ASCII file format.
distribution 
                                            [
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Dataset Landing Page",
    "accessURL": "https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ncdc:C00872/html",
    "mediaType": "text/html",
    "description": "Landing page for the dataset.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NOAA ICOADS page",
    "accessURL": "http://icoads.noaa.gov/merge.html",
    "mediaType": "text/html",
    "description": "Access to ICOADS documentation, chronology, and publications.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NCEI Customer Service",
    "accessURL": "https://www.ncdc.noaa.gov/customer-support",
    "mediaType": "text/html",
    "description": "For access to this version of the dataset (superseded), please contact the Customer Engagement Branch.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NCEI landing page for the current Version 3.0",
    "accessURL": "https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ncdc%3AC00TBD/html",
    "mediaType": "text/html",
    "description": "Current dataset landing page with general information and access links for that dataset.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "Global Change Master Directory (GCMD) Keywords",
    "accessURL": "https://earthdata.nasa.gov/about/gcmd/global-change-master-directory-gcmd-keywords",
    "mediaType": "text/html",
    "description": "The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords.",
    "describedByType": "application/octet-stream"
  },
  {
    "@type": "dcat:Distribution",
    "title": "NOAA National Centers for Environmental Information (NCEI)",
    "accessURL": "https://www.ncei.noaa.gov",
    "mediaType": "text/html",
    "description": "NCEI home page with information, data access and contact information.",
    "describedByType": "application/octet-stream"
  }
]
identifier https://data.noaa.gov/waf/NOAA/NESDIS/ncei/aim/iso/xml/C00872.xml
issued 2019-10-03T00:00:00.000+00:00
keyword 
                                            [
  "Earth Science > Atmosphere > Air Quality > Visibility",
  "Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements",
  "Earth Science > Atmosphere > Atmospheric Temperature > Surface Temperature",
  "Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Indicators > Humidity",
  "Earth Science > Atmosphere > Atmospheric Winds > Surface Winds",
  "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 > Clouds > Cloud Properties > Cloud Amount/Frequency",
  "Earth Science > Atmosphere > Clouds > Cloud Properties > Cloud Ceiling",
  "Earth Science > Atmosphere > Clouds > Cloud Properties > Cloud Types",
  "Earth Science > Atmosphere > Clouds > Cloud Properties > Cloud Height",
  "Earth Science > Atmosphere > Precipitation > Precipitation Amount",
  "Earth Science > Atmosphere > Precipitation > Liquid Precipitation > Rain",
  "Earth Science > Atmosphere > Precipitation > Solid Precipitation > Ice Pellets > Sleet",
  "Earth Science > Atmosphere > Precipitation > Solid Precipitation > Snow",
  "Earth Science > Atmosphere > Precipitation > Solid Precipitation > Hail",
  "Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature",
  "Earth Science > Oceans > Ocean Pressure > Sea Level Pressure",
  "Earth Science > Oceans > Ocean Waves > Wave Speed/Direction",
  "Earth Science > Oceans > Ocean Waves > Wave Period",
  "Earth Science > Oceans > Ocean Waves > Wave Height",
  "Earth Science > Oceans > Ocean Waves > Swells",
  "Earth Science > Oceans > Sea Ice > Sea Ice Concentration",
  "Earth Science > Oceans > Sea Ice > Ice Edges",
  "Earth Science > In Situ Ocean-Based Platforms > Buoys",
  "Earth Science > In Situ Ocean-Based Platforms > Ocean Platform/Ocean Stations > C-Man > Coastal Marine Network",
  "Earth Science > In Situ Ocean-Based Platforms > Ocean Platform/Ocean Stations",
  "Earth Science > In Situ Ocean-Based Platforms > Ocean Platform/Ocean Stations > Ocean Weather Stations",
  "Earth Science > In Situ Ocean-Based Platforms > Ships",
  "Earth Science > Anemometers",
  "Earth Science > Bathythermographs",
  "Earth Science > Barometers",
  "Earth Science > Hygrometers",
  "Earth Science > Drifting Buoys",
  "Earth Science > Hygrometers",
  "Earth Science > Psychrometers",
  "Earth Science > Wet Bulb Thermometers",
  "Earth Science > Thermometers",
  "Earth Science > Visual Observations",
  "Earth Science > Wind Vanes",
  "Earth Science > Temperature Sensors",
  "Geographic Region > Global Ocean",
  "Vertical Location > Troposphere",
  "Vertical Location > Sea Surface",
  "DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce",
  "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
  "Metadata_Not_Published"
]
language 
                                            []
license https://creativecommons.org/publicdomain/zero/1.0/
modified 2019-10-03T00:00:00.000+00:00
publisher 
                                            {
  "name": "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce",
  "@type": "org:Organization"
}
references 
                                            [
  "https://www.ncei.noaa.gov/metadata/geoportal/rest/metadata/item/gov.noaa.ncdc%3AC00TBD/html"
]
rights otherRestrictions
spatial 180.0,-90.0,-180.0,90.0
temporal 2008-01-01T00:00:00+00:00/2008-01-01T00:00:00+00:00
title International Comprehensive Ocean Atmosphere Data Set (ICOADS) in Near-Real Time (NRT) Version 2.5 (Version Superseded)

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