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International Comprehensive Ocean-Atmosphere Data Set (ICOADS) Release 3.0.2-Daily


The International Comprehensive Ocean-Atmosphere Data Set (ICOADS) is a global ocean marine meteorological and surface ocean dataset. It is formed by merging many national and international data sources that contain measurements and visual observations from ships (merchant, navy, research), moored and drifting buoys, coastal stations, and other marine and near-surface ocean platforms. Each marine report contains individual observations of meteorological and oceanographic variables, such as sea surface and air temperatures, wind, pressure, humidity, and cloudiness. The coverage is global and sampling density varies depending on date and geographic position relative to shipping routes and ocean observing systems.

This dataset contains ICOADS Release 3.0.2-Daily, which is a near-real time daily update of ICOADS observations. Data are available from 2023-03-24, and are updated daily with a latency of 19 days.

The new release 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. Other revisions and extensions of the International Maritime Meteorological Archive (IMMA) common data format incorporate new near-surface oceanographic data elements and cloud parameters. Many new input data and metadata sources have been assembled, and updates and improvements to existing data sources, or removal of erroneous data, made.

Temporal Range:
2015-01-01 to 2024-01-23 (Entire dataset) Period details by dataset product
Sea Surface Temperature
Data Types:
Platform Observation
Data Contributors:
Research Data Archive, Computational and Information Systems Laboratory, National Center for Atmospheric Research, University Corporation for Atmospheric Research
National Oceanography Centre, University of Southampton
Center for Ocean-Atmospheric Prediction Studies, Florida State University
National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
Total Volume:
102.75 GB (Entire dataset) Volume details by dataset product
Data Formats:
More Details:
View a more detailed summary of the data, including specific date ranges and locations by parameter
Metadata Record:
Data License:
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