- 10 - 
Data processing 
An overview of the data processing carried out with the XBT 
data stored on cartridge tapes is given in Fig. 8. It is a 
scheme for the main fraction of data. In this context, the 
filter coefficients for the moving average application is 
only a guiding principle. For some single profiles of 
particularly bad quality the processing may differ under 
certain cicumstances. Thus e.g. profiles which are disturbed 
due to heavy noise stronger filtering was carried out by 
using q = 15 - 21 filter weights. Remarkable profiles are 
marked by special notes in the station lists. 
The final depth interval averaging with /\z = 1 m disregards 
the reduced statistical independency by the previous 
filtering. By compaction on 1 m steps, only a uniform 
standard for archived data is guaranteed. Whatever the 
further needs for scientific analysis may be, the relatively 
high nominal vertical resolution of the final data keeps the 
option for adjustments open, which is left to the investi 
gator's discretion intentionally. 
The finally processed data are archived in the Deutsches 
Ozeanographisches Datenzentrum (DOD) which is operated by 
DHI. In case of need, in particular for WOCE, the data are 
placed at users' disposal, provided that the data originators 
gave their agreement. Special reservations are made concern 
ing topics such as the statistical analysis, heat content, 
wintertime convection, and North Atlantic Current, which are 
the primary reason of this Ship of Opportunity Programme. 
Presentation of data 
An overview of the schedules of the 8 voyages of CMS "Koln 
Atlantic" is summarized in Table 1, and the positions of all 
XBT drops are presented in Fig. 9. A presentation of all data 
is given separately in Tables, track plots, profile plots, 
and section plots assorted by voyages