The greater rate of warming in the tropical mid-troposphere that is projected by general - circulation models is absent in this and
all other observational datasets, whether satellite or radiosonde.
Part of the story here is that it is this very sort of very careful work done by John Kennedy and Phil Jones and
other colleagues working on these
datasets that has allowed us to start challenging the models and our understanding in such a detailed way — in some ways it is quite remarkable that the
observational data is now good enough to identify this level of detail in how the climate varies and changes.