A few years ago, I bought a whole book on the Thera eruption. I never got a chance to read it. If I can locate it I will see what kind of references and test data it has and let you know.
a little of this, a little of that, interesting site:
http://www.therafoundation.org/articles/chronololy/
http://www.therafoundation.org/articles/volcanology/