The best way to get in touch is to write me an e-mail or ping me on Twitter or Google+:
I'm also fairly active on the Software Underground Slack channel. It's a place where very interesting and smart geoscientists gather to chat and exchange ideas. I highly recommend signing up (it's free!).
I'm currently on a postdoc leave at UH Manoa. You can find me at:
If you're around Rio and want to chat about geophysics, science, free software, teaching, or anything interesting, stop by my office (I teach a lot of classes so it's better to send me an e-mail first):