Some amusing tidbits… Some people who might read this had locked-down Twitter accounts at the time. They still appeared quite high in our initial rankings of Atlanta flood data. The conversation-filtering pass mentioned in the paper removed them from the published rankings, however. Also, Tessa Horehled through @driveafastercar and Jennifer Maciejewski through @atlcheap appeared as highly influential news sources while being unknown to our PNNL collaborators.
Thanks to Courtney Corley for forwarding the references. I would have missed them otherwise. Much of the analysis code was written by David Ediger, and the other co-author is his advisor and my boss, David A. Bader.