Though the depth is recorded on the machine, as a backup a ribbon is placed on the cable so the driller can tell at a glance when they have reached the undrilled part of the hole and should begin drilling.
Ice Core Drilling January 10th 2006 These are the photos I took of the ice core drilling team. They were from the University of Wisconsin- Madison. I found this process to be very interesting. I hope you enjoy them. ... read more
