International Comprehensive Ocean-Atmosphere Data Set (ICOADS) R3.0 netCDF version

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This collection contains observations of global ocean meteorological and oceanographic variables, such as sea surface and air temperatures, wind, pressure, humidity, and cloudiness, from many national and international data sources, including ships (merchant, navy, research), moored and drifting buoys, coastal stations, and other marine and near-surface ocean platforms. These observations have been merged to create the International Comprehensive Ocean-Atmosphere Data Set (ICOADS) Release 3.0 (Freeman et al. 2017) and are now available in this collection in the netCDF 4.0 format. The spatial coverage is global and sampling density varies depending on date and geographic position relative to shipping routes and ocean observing systems. The temporal coverage is from 1662 to present and organized by one file per month.

This is the netCDF version of the ICOADS Release 3.0 (R3.0), which is converted from the original IMMA1 format (Smith et al 2017). Useful metadata have been added in the global and variable attributes of each file to make the netCDF self-contained. R3.0 includes changes designed to enable more effective exchange of information describing data quality between ICOADS, reanalysis centers, data set developers, scientists and the public. These user-driven innovations include the assignment of a unique identifier (UID) to each marine report, to enable tracing of observations, linking with reports and improved data sharing. Many new input data and metadata sources have been assembled, and updates and improvements to existing data sources, or removal of erroneous data, made.

References:
Freeman, E., Woodruff, S. D., Worley, S. J., Lubker, S. J., Kent, E. C., Angel, W. E., Berry, D. I., Brohan, P., Eastman, R., Gates, L., Gloeden, W., Ji, Z., Lawrimore, J., Rayner, N. A., Rosenhagen, G. and Smith, S. R. (2017), ICOADS Release 3.0: a major update to the historical marine climate record. Int. J. Climatol., 37: 2211-2232. doi:10.1002/joc.4775.

Smith S.R., E. Freeman, S.J. Lubker, S.D. Woodruff, S.J. Worley, W.E. Angel, D.I. Berry, P. Brohan P, Z. Ji, E.C. Kent, et al., 2017: The International Maritime Meteorological Archive (IMMA) Format [http://icoads.noaa.gov/e-doc/imma/R3.0-imma1.pdf or an abbreviated version is available at: http://icoads.noaa.gov/edoc/imma/R3.0-imma1_short.pdf].
Cite as: Wang, Z. and US DOC; NOAA; NESDIS; National Centers for Environmental Information (2017). International Comprehensive Ocean-Atmosphere Data Set (ICOADS) R3.0 netCDF version. NOAA National Centers for Environmental Information. Dataset. [access date]
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Distribution Formats
  • netCDF-4
    • File Specification: ACDD-1.3, CF-1.6, NCEI_NetCDF_Point_Template_v2.0
Distributor DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Time Period: 1662-10-15 to Present
Spatial Bounding Box Coordinates:
N: -90
S: 90
E: -180
W: 180
Spatial Coverage Map:
General Documentation
Associated Resources
  • International Comprehensive Ocean-Atmosphere Data Set
  • ICOADS Release 3.0: a major update to the historical marine climate recordDigital Object Identifier (DOI)
    • doi:10.1002/joc.4775
      Freeman, E., S.D. Woodruff, S.J. Worley, S.J. Lubker, E.C. Kent, W.E. Angel, D.I . Berry, P. Brohan, R. Eastman, L. Gates, W. Gloeden, Z. Ji, J. Lawrimore, N.A. Rayner, G. Rosenhagen, and S.R. Smith, 2017: ICOADS Release 3.0: A major update to the historical marine climate record. Int. J. Climatol. (CLIMAR-IV Special Issue), 37, 2211-2237 (doi:10.1002/joc.4775)
  • Documentation for the International Comprehensive Ocean-Atmosphere Data Set (ICOADS) R3.0 conversion from IMMA1 to netCDF format (NCEI Accession 0162250)NCEI
  • The International Maritime Meteorological Archive (IMMA) Format
Date(s)
  • publication: 2017-04-04
  • revision: 2017-06-12
Data Presentation Form: Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete
Data Update Frequency: As needed
Purpose: Basic research
Use Limitations
  • accessLevel: Public
  • 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 data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Wang, Z. and US DOC; NOAA; NESDIS; National Centers for Environmental Information (2017). International Comprehensive Ocean-Atmosphere Data Set (ICOADS) R3.0 netCDF version. NOAA National Centers for Environmental Information. Dataset. [access date]
  • and also cite as: Freeman, E., S.D. Woodruff, S.J. Worley, S.J. Lubker, E.C. Kent, W.E. Angel, D.I . Berry, P. Brohan, R. Eastman, L. Gates, W. Gloeden, Z. Ji, J. Lawrimore, N.A. Rayner, G. Rosenhagen, and S.R. Smith, 2017: ICOADS Release 3.0: A major update to the historical marine climate record. Int. J. Climatol. (CLIMAR-IV Special Issue), 37, 2211-2237 (doi:10.1002/joc.4775).
Processor(s)
Resource Provider(s)
Point(s) of Contact
Publisher(s)
Acknowledgment(s)
  • Conversion of ICOADS data from IMMA1 to netCDF format by NCEI is supported by the NOAA Big Earth Data Initiative (BEDI).
Theme keywords NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • aerology
  • marineMeteorology
  • meteorology
  • oceanography
  • weatherObservations
ICOADS Variable Long Names
  • Air Temperature
  • Alkalinity
  • Alkalinity Depth
  • Characteristics of Pressure Tendency
  • Cloud Height
  • Cloud Height Indicator
  • Country Code
  • Country Code 2
  • Deck
  • Dew Point Temperature
  • Dew Point Temperature Indicator
  • Dissolved Oxygen
  • Dissolved Oxygen Depth
  • Duplicate Check
  • Duplicate Status
  • High Cloud Type
  • Hour
  • IMMT Version
  • Ice Accretion On Ship
  • Identification
  • Identification Indicator
  • Intermediate Reject Flag
  • Latitude
  • Latitude Longitude Indicator
  • Longitude
  • Low Cloud Amount
  • Low Cloud Type
  • Middle Cloud Type
  • National Source Indicator
  • Night/Day Flag
  • Nitrate
  • Nitrate Depth
  • Observation Platform
  • Observation Source
  • One Degree Box Number
  • PH
  • PH Depth
  • Past Weather
  • Past Weather 2
  • Phosphate
  • Phosphate Depth
  • Platform Type Indicator
  • Precipitation Amount
  • Precipitation Indicator
  • Present Weather
  • Pressure Bias
  • Pressure Tendency
  • Provider's Unique Record Identification
  • Rate of Ice Accretion on Ship
  • Relative Humidity
  • Relative Humidity Indicator
  • SST 2
  • SST Depth 2
  • Salinity
  • Salinity Depth
  • Sea Level Pressure
  • Sea Surface Temperature
  • Sea Surface Temperature Method Indicator
  • Ship's Course
  • Ship's Speed
  • Silicate
  • Silicated Depth
  • Source
  • Swell Direction
  • Swell Height
  • Swell Period
  • Swell Period Indicator
  • Temperature Indicator
  • Ten Degree Box Number
  • Thickness of Ice Accretion On Ship
  • Time Indicator
  • Total Chlorophyll
  • Total Chlorophyll Depth
  • Total Cloud Amount
  • Track Check
  • Unique Report ID
  • Visibility
  • Visibility Indicator
  • Wave Direction
  • Wave Height
  • Wave Measurement Indicator
  • Wave Period
  • Wave Period Indicator
  • Wet Bulb Temperature
  • Wet Bulb Temperature Indicator
  • Wind Direction
  • Wind Direction Indicator
  • Wind Speed
  • Wind Speed Indicator
  • date in YYYYMMDD
  • time
NetCDF Climate and Forecast (CF) Metadata Convention Standard Name Table
  • air_pressure_at_sea_level
  • air_temperature
  • cloud_area_fraction
  • cloud_base_altitude
  • dew_point_temperature
  • latitude
  • longitude
  • low_type_cloud_area_fraction
  • mass_concentration_of_chlorophyll_in_sea_water
  • mole_concentration_of_nitrate_in_sea_water
  • mole_concentration_of_phosphate_in_sea_water
  • mole_concentration_of_silicate_in_sea_water
  • sea_surface_swell_wave_period
  • sea_surface_swell_wave_significant_height
  • sea_surface_temperature
  • sea_surface_wave_from_direction
  • sea_surface_wind_wave_period
  • sea_surface_wind_wave_significant_height
  • sea_water_alkalinity_expressed_as_mole_equivalent
  • sea_water_ph_reported_on_total_scale
  • sea_water_salinity
  • sea_water_temperature
  • tendency_of_surface_air_pressure
  • time
  • visibility_in_air
  • volume_fraction_of_oxygen_in_sea_water
  • wet_bulb_temperature
  • wind_from_direction
  • wind_speed
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NODC > National Oceanographic 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
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
NODC SUBMITTING INSTITUTION NAMES THESAURUS
Platform keywords NODC PLATFORM NAMES THESAURUS Global Change Master Directory (GCMD) Platform Keywords
  • BUOYS
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
  • CTD > Conductivity, Temperature, Depth
  • MBT > Mechanical Bathythermographs
  • TIDE GAUGES
  • XBT > Expendable Bathythermographs
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords
  • GEOGRAPHIC REGION > GLOBAL OCEAN
Project keywords NODC PROJECT NAMES THESAURUS Global Change Master Directory (GCMD) Project Keywords
  • ICOADS > International Comprehensive Ocean Atmosphere Data Set
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Wang, Z. and US DOC; NOAA; NESDIS; National Centers for Environmental Information (2017). International Comprehensive Ocean-Atmosphere Data Set (ICOADS) R3.0 netCDF version. NOAA National Centers for Environmental Information. Dataset. [access date]
  • and also cite as: Freeman, E., S.D. Woodruff, S.J. Worley, S.J. Lubker, E.C. Kent, W.E. Angel, D.I . Berry, P. Brohan, R. Eastman, L. Gates, W. Gloeden, Z. Ji, J. Lawrimore, N.A. Rayner, G. Rosenhagen, and S.R. Smith, 2017: ICOADS Release 3.0: A major update to the historical marine climate record. Int. J. Climatol. (CLIMAR-IV Special Issue), 37, 2211-2237 (doi:10.1002/joc.4775).
Access Constraints
  • 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.
Fees
  • Digital data may be downloaded from NCEI at no charge in most cases. For custom orders of digital data or to obtain a copy of analog materials, please contact NCEI Information Services for information about current fees.
Acquisition Information (collection)
Instrument
  • bathythermograph - MBT
  • bathythermograph - XBT
  • buoy - drifting buoy
  • buoy - moored buoy
  • CTD
  • Glider
  • profiling floats
  • tide gauge
Platform
  • DRIFTING BUOY
  • FIXED PLATFORM
  • FIXED STATIONS
  • ICE STATION
  • LIGHT VESSELS
  • Moored Buoy
  • MULTIPLE SHIPS
Last Modified: 2017-06-12T20:28:51
For questions about the information on this page, please email: NODC.DataOfficer@noaa.gov