Data Set ID:

Comprehensive Ocean - Atmosphere Data Set (COADS) LMRF Arctic Subset, Version 1

The Comprehensive Ocean - Atmosphere Data Set (COADS) LMRF Arctic
subset contains marine surface weather reports for the region north of
65 degrees N from ships, drifting ice stations, and buoys. COADS is
the result of an ongoing project to assemble and reduce
machine-readable portions of the available historical ocean-atmosphere
record into a regular, compact, easy-to-use database. The COADS LMRF
Arctic subset contains data collected over the years 1950 to 1995. The
following parameters are included in this data set: air and sea
temperature, cloudiness, humidity, and winds. The scientists
assembling COADS have attempted to integrate all available digitized,
directly sensed surface-marine data sets that would contribute
information of reasonable quality. Most of the early data were
gathered by ships-of-opportunity. More recent data also come from
fixed research vessels, buoys, and other observing devices. Data
archived at NSIDC is for the region North of 65 degrees N. for the years 1950-1995. Updates will be made available as they are received
The COADS LMRF Arctic subset consists of 46 data files (one for each
year) which are in LMRF (Long Marine Report Fixed-Length, packed
binary format), and has a total volume of approximately 201 MB UNIX
compressed, and 632 MB uncompressed. The data are in the form of
individual marine reports with a given latitude and longitude. A
UNIX-based Fortran program is distributed with the data files.

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Geographic Coverage

Data Set Tabs

Spatial Coverage:
  • N: 90, S: 65, E: 180, W: -180

Spatial Resolution:
Not Specified
Temporal Coverage
  • 1950-01-01 to 1995-12-31
Temporal Resolution:
Not specified
  • Atmospheric Temperature > Air Temperature
  • Clouds > Cloud Height
  • Clouds > Cloud Amount/Frequency > Cloudiness
  • Clouds > Cloud Types
  • Atmospheric Winds > Surface Winds > Horizontal Velocity
  • Atmospheric Water Vapor > Water Vapor > Humidity
  • Atmospheric Pressure > Sea Level Pressure
  • Ocean Temperature > Sea Surface Temperature
  • Atmospheric Water Vapor > Water Vapor > Surface Humidity
  • Atmospheric Pressure > Surface Pressure
  • Ocean Winds > Surface Winds
  • Ocean Waves > Swells
Data Format(s):
  • LMRF
Data Contributor(s): Mark Serreze, Scott Woodruff, Steven Worley

Data Citation

As a condition of using this data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Serreze, M., compiler 2006. Comprehensive Ocean - Atmosphere Data Set (COADS) LMRF Arctic Subset, Version 1. [indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. [Date Accessed].
No See Also links are available for this data set.

Questions? Please contact:

NSIDC User Services
Phone: 1 303 492-6199
Fax: 1 303 492-2468
Contact Address:
National Snow and Ice Data Center
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA