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About a year ago the Sea Weather: Office issued a small publication on wave statistics as the first result of wave observations by weather ships in the North Atlantic. This was done to overcome the existing need for information on the frequency of the various sea states in the North Atlantic.
The observed data have been taken from the weather radio messages of the North Atlantic weather ships. Because the original logbook obser­vations have not been published as yet, it has been necessary to take into account the reduction inaccuracy of the data due to the coding as well as the possibility of errors in transmission which al­ways exist with the radio messages. However, spot checking of the original data against the radio messages have a good agreement, and the confidence in the weather news service has so increased that the possibility of transmitting errors can be con­sidered as negligible.