The profiles measured with the same instrument (eg. bottles, CTD, XBT..) during the same cruise, are grouped within the same file which includes:

	A Cruise Header Format based  on the international ROSCOP information
	A Station Header Format including the cruise reference, the originator station reference within the cruise and the time and location
	The Data Format of the profile

The sequence 'profile header + data points ' is repeated for each profile.