International Comprehensive Ocean-Atmosphere Data Set (ICOADS) with Enhanced Trimming, Release 3
ICOADS-ET R3
ICOADS logo
This dataset contains the latest official release of International Comprehensive Ocean-Atmosphere Data Set (ICOADS) with Enhanced Trimming, provided in a common format: the International Maritime Meteorological Archive (IMMA format). The dataset provides point observations with full global coverage, from 1662 to 2014. Surface meteorological variables over the ocean, including sea surface temperature, are available where observed. All observations in this collection from the latest ICOADS Release data set are "enhanced" filtered. The enhanced filter option is designed to select almost all available observations, including ships, buoys, and additional platforms such as oceanographic profilers. Furthermore, this filter excludes (trims) outliers that fall outside 4.5 standard deviations from the smoothed median. For more information on enhanced observations please read associated resources. From the project website (http://icoads.noaa.gov/products.html) you can find out about other filtering operations, as well as about monthly summary statistics(basic gridded) products, provided from the other ICOADS project partners. There are Preliminary data that are delivered monthly, but are not a part of the Official ICOADS Release 3.0.
- Cite as: National Centers for Environmental Information; Cooperative Institute for Research in Environmental Sciences, University of Colorado; Research Data Archive, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research; Earth System Research Laboratory, NOAA, U.S. Department of Commerce; NERC National Oceanography Centre, Natural Environment Research Council, United Kingdom; Met Office, Ministry of Defence, United Kingdom; Deutscher Wetterdienst (German Meteorological Service), Germany; University of Washington, Department of Atmospheric Science; Center for Ocean-Atmospheric Prediction Studies, Florida State University (2016): International Comprehensive Ocean-Atmosphere Data Set (ICOADS) with Enhanced Trimming, Release 3. [indicate subset used]. NOAA National Centers for Environmental Information. doi:10.7289/V5930R58 [access date].
Search Data |
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Download Data |
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Order Data |
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Distribution Formats |
- XML
- ASCII (Version: IMMA0)
- File Specification: http://icoads.noaa.gov/e-doc/imma/R2.5-imma.pdf
- PDF
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Ordering Instructions |
Contact NCEI for other distribution options and instructions. |
Distributor |
NOAA National Centers for Environmental Information ncei.info@noaa.gov
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Dataset Point of Contact |
Customer Engagement Branch DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce 1-828-271-4800 NODC.Services@noaa.gov
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Dataset Point of Contact |
Eric Freeman MSC Contractor / Marine Observation Analyst DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce 828-271-4463 eric.freeman@noaa.gov
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Time Period |
1662-10 to 2014-12 |
Spatial Bounding Box Coordinates |
West: -180.0
East: 180.0
South: -90.0
North: 90.0
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Spatial Coverage Map |
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General Documentation |
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Processing Documents |
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Publication Dates |
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Edition |
3.0 |
Data Presentation Form |
Digital table - digital representation of facts or figures systematically displayed, especially in columns
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Dataset Progress Status |
Pending - committed to, but not yet addressed |
Data Update Frequency |
Irregular |
Purpose |
Multiple sources of historical marine observations provided in a well known standard format and long period of record with global coverage. |
Use Limitations |
- No bias corrections applied to any reports.
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Dataset Citation |
- Cite as: National Centers for Environmental Information; Cooperative Institute for Research in Environmental Sciences, University of Colorado; Research Data Archive, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research; Earth System Research Laboratory, NOAA, U.S. Department of Commerce; NERC National Oceanography Centre, Natural Environment Research Council, United Kingdom; Met Office, Ministry of Defence, United Kingdom; Deutscher Wetterdienst (German Meteorological Service), Germany; University of Washington, Department of Atmospheric Science; Center for Ocean-Atmospheric Prediction Studies, Florida State University (2016): International Comprehensive Ocean-Atmosphere Data Set (ICOADS) with Enhanced Trimming, Release 3. [indicate subset used]. NOAA National Centers for Environmental Information. doi:10.7289/V5930R58 [access date].
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Cited Authors |
- ICOADS Partner
UCO/CIRES > Cooperative Institute for Research in Environmental Sciences, University of Colorado
- UCAR/NCAR/CISL/RDA > Research Data Archive, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research
- DOC/NOAA/ESRL > Earth System Research Laboratory, NOAA, U.S. Department of Commerce
- National Oceanography
UK/NERC/NEODC > NERC National Oceanography Centre, Natural Environment Research Council, United Kingdom
- UK/MOD/MET > Met Office, Ministry of Defence, United Kingdom
- DE/DWD > Deutscher Wetterdienst (German Meteorological Service), Germany
- UWA/DOA > University of Washington, Department of Atmospheric Science
- FSU/COAPS > Center for Ocean-Atmospheric Prediction Studies, Florida State University
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Collaborators |
- ICOADS Partner
UCO/CIRES > Cooperative Institute for Research in Environmental Sciences, University of Colorado
- UCAR/NCAR/CISL/RDA > Research Data Archive, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research
- DOC/NOAA/ESRL > Earth System Research Laboratory, NOAA, U.S. Department of Commerce
- National Oceanography
UK/NERC/NEODC > NERC National Oceanography Centre, Natural Environment Research Council, United Kingdom
- UK/MOD/MET > Met Office, Ministry of Defence, United Kingdom
- DE/DWD > Deutscher Wetterdienst (German Meteorological Service), Germany
- UWA/DOA > University of Washington, Department of Atmospheric Science
- FSU/COAPS > Center for Ocean-Atmospheric Prediction Studies, Florida State University
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Publishers |
- NOAA National Centers for Environmental Information
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Theme keywords |
Global Change Master Directory (GCMD) Science Keywords
- 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 Pressure > Surface Pressure
- Earth Science > Oceans > Ocean Pressure > Sea Level Pressure
- Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature
- Earth Science > Oceans > Ocean Temperature > Water Temperature
- Earth Science > Oceans > Ocean Waves > Sea State
- 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 > Ocean Waves > Wind Waves
- Earth Science > Oceans > Ocean Winds > Surface Winds
- Earth Science > Oceans > Sea Ice > Ice Edges
- Earth Science > Oceans > Sea Ice > Icebergs
- Earth Science > Oceans > Sea Ice > Sea Ice Concentration
Global Climate Observing System (GCOS) Essential Climate Variables (ECVs)
- Oceanic - Surface - Sea-surface Temperature
- Atmospheric - Surface - Air Temperature
- Atmospheric - Surface - Wind Speed And Direction
- Atmospheric - Surface - Pressure
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Data Center keywords |
Global Change Master Directory (GCMD) Data Center Keywords
- 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
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Platform keywords |
Global Change Master Directory (GCMD) Platform Keywords
- Ships
- In Situ Ocean-based Platforms > Ocean Platform/Ocean Stations > C-MAN > Coastal Marine Network
- Buoys
- Ocean Platforms
- In Situ Ocean-based Platforms > Moorings
- Ocean Platforms
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Instrument keywords |
Global Change Master Directory (GCMD) Instrument Keywords
- Anemometers
- Barometers
- In Situ/Laboratory Instruments > Temperature/Humidity Sensors > Hygrometers
- Drifting Buoys
- Wind Vanes
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Place keywords |
Global Change Master Directory (GCMD) Location Keywords- Geographic Region > Global Ocean
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Project keywords |
Global Change Master Directory (GCMD) Project Keywords- ICOADS > International Comprehensive Ocean Atmosphere Data Set
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Data Resolution keywords |
Global Change Master Directory (GCMD) Horizontal Data Resolution Keywords
Global Change Master Directory (GCMD) Vertical Data Resolution Keywords
Global Change Master Directory (GCMD) Temporal Data Resolution Keywords
- Hourly - < Daily
- Daily - < Weekly
- 1 minute - < 1 hour
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Stratum keywords |
Global Change Master Directory (GCMD) Location Keywords- Vertical Location > Sea Surface
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Use Constraints |
- Cite as: National Centers for Environmental Information; Cooperative Institute for Research in Environmental Sciences, University of Colorado; Research Data Archive, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research; Earth System Research Laboratory, NOAA, U.S. Department of Commerce; NERC National Oceanography Centre, Natural Environment Research Council, United Kingdom; Met Office, Ministry of Defence, United Kingdom; Deutscher Wetterdienst (German Meteorological Service), Germany; University of Washington, Department of Atmospheric Science; Center for Ocean-Atmospheric Prediction Studies, Florida State University (2016): International Comprehensive Ocean-Atmosphere Data Set (ICOADS) with Enhanced Trimming, Release 3. [indicate subset used]. NOAA National Centers for Environmental Information. doi:10.7289/V5930R58 [access date].
- Use liability: 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.
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Access Constraints |
- 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 the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
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Fees |
- In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
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Lineage information for: dataset |
Lineage Statement |
The dataset is a mixture of global marine observational data from multiple sources. All observations in this archive are from ICOADS Release 2.5 and are "enhanced" filtered. The enhanced filter option is designed to select almost all available observations, including ships, buoys, and additional platforms such as oceanographic profilers. Furthermore, this filter excludes (trims) outliers that fall outside 4.5 standard deviations from the smoothed median. For more information on enhanced observations please read: http://icoads.noaa.gov/e-doc/stat_trim. From the project website ( http://icoads.noaa.gov/products.html) you can find out about other filtering operations, as well as about monthly summary statistics(basic gridded) products, provided from the other ICOADS project partners. |
Processor |
- DOC/NOAA/NESDIS/NCDC > National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce
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Processing Steps |
- Translating data into IMMA format
Rationale: To standardize the format across various data sources and/or types.
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Processing Documents |
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Source Datasets |
- International Comprehensive Ocean-Atmosphere Data Set (ICOADS)
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Lineage information for: repository |
Processing Steps |
- 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
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Last Modified: 2023-06-23
For questions about the information on this page, please email:
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