The WOCE-UOT data management system and the IOC/WMO Global Temperature Salinity Profile Project (GTSPP) developed a partnership which permitted the management of both low resolution (real-time) and high resolution (delayed mode) data. The WOCE-UOT Data Assembly Centre (DAC) has a number of cooperating centres of which ISDM is one. ISDM routinely quality controls and forwards to the US NODC the real-time ocean profile data transmitted on the Global Telecommunications System (GTS).