natural philosopher · soft-earth geophysics
Postdoctoral Research Scholar, Los Alamos National Laboratory
Santa Fe, New Mexico
Before the sandpile, there was the logjam. Two months in the central Idaho wilderness with time-lapse cameras, a total station and water-level loggers, watching one logjam through a snowmelt season. A general theory of how logjams form, deform and collapse is in preparation.
Fig. 1. About a thousand logs across Big Creek, Idaho. Not
jammed. They shuffle downstream as the snowmelt rises, and settle back
among their neighbors as it falls. |
Fig. 2. A logjam in miniature: a flume in the lab, where the
river can be turned up and down at will. |