The subject of barometric pressure changes might be discussed in that book in their sections dealing with earthquake triggering processes. I am not certain about that.

I believe that the book authors have chapters organized as .doc reports that could be sent to book reviewers by E-mail etc. But I don't know what their plans are along those lines. They are pretty busy people who have a network of ground movement sensors scattered probably over several continents. And they are planning to locate one of those units here in the U.S. if they can get funding approval. A location for it has already been selected.