Global Data - XBT data can be obtained in real-time mode through the GTS. Near-real time data can be obtained through the GTSPP site, which is operated by the NOAA National Oceanographic Data Center. Delayed-time, quality controlled data, is also delivered globally by NOAA/NESDIS through its World Ocean Data project.
Transect Data - XBT data along the fixed transects of the global XBT network can be found through the institutions that lead the specific transect operations.
The total number of XBT profiles by year, split by probe type and manufacturer, in the WOD09.