This is an audio journal from David Thesenga. David describes the team's first day of field work out on the Shear Zone.

    Basal ice formation
    A graphic showing basal marine ice formation.

    GPR vs. reality
    A ground penetrating radar (GPR) view of a crevasse, compared to a similar exposed crevasse.

    Shear Zone
    Weather Summary
    Light wind
    -15 F


    Darlene McKenna

    Hello Mr. Thesenga,I am a 4th grade Science teacher at Saint Vincent Martyr School in Madison, NJ. Julianna King is in my class and her uncle's brother in law is with you I believe. Mrs. King shared your blog with us.
    We are currently studying glacial erosion and she sent your amazing report to me. I do plan to share some of these with my classes. Would I be able to send some student questions along the way?
    Thank you,
    Darlene McKenna

    Aaron Hayes

    Prayers for you and the rest of the team - I just read about Gordon's accident. I can't imagine what you guys are going through.


    David Thesenga

    Even though in light of recent events we are back in from the field, I'm more than happy to answer questions from your students of course! I will begin posting blog entries again this week and I will be doing other great science here in McMurdo - please continue to follow along and I look forward to your questions!

    David Thesenga

    Thank you very much Aaron. Please rest assured that myself and the team are fine, shaken and stressed of course, but we are safely back in McMurdo and being extremely well cared for by the NSF and all the fantastic people here at McMurdo.

    Lisa Seff

    Hi David! Wow! Dynamiting crevasses to make it safe to travel, just amazing! and so interesting how the technology can use the energy waves from the explosion to determine what's down below the ice. Great audio journal! Keep up the good work and stay safe!-Lisa