Volume 5 will be shipped to all current subscribers. Data formats in HARA Volume 5 are identical to those in Volumes 1-4 with the exception that we no longer supply additional quality flags that were based on simple limits checks. Experience has shown that these flags are of limited use to the user community. Data were subjected to extensive quality control procedures. To avoid duplications with the NP archive, efforts were made to eliminate NP soundings, using the station call signs provided with each sounding.
Data coverage is best for the Atlantic side of the Arctic.
A large number of soundings are represented by a moored ship in the Norwegian Sea. The archive extends from 1976 through June of 1996. Data are arranged in synoptic order, such that all available soundings for day 1 are followed by all available soundings for day 2, day 3, etc. Each sounding starts with a header line followed by a variable number of data lines with associated quality codes. The archive has scenes extending back to April 1992 for the Southern Hemisphere, and to July 1993 for the Northern Hemisphere.