[time-nuts] Assistance Please- need atomic clock time datasets for study

[Dwayne]

   Fellow Time-nuts;
   I am working on an interesting research project focused on the phase
   relationship of error accumulation across geographically dispersed
   clocks.
   Early research shows some correlation, but I need access to larger
   datasets. (Fine grained data log of precision clocks, indexed to an
   international time standard)
   Can anyone on this list help point me to a helpful data source?
   A ideal data set would consist of years worth of clock samples, from
   multiple atomic clocks that are geographically dispersed, at fixed
   locations.
   I can adjust my project somewhat in order to accommodate available
   data, so any insight from this audience is welcome.
   Key is that the data should come from multiple clocks (three as
   minimum- more =better), and the data must cover a simultaneous time
   period.
   I can use data from a single clock, and pair it with others, provided
   the collection dates overlap.
   Sources?
   Thanks in advance.
   Dwayne Esterline