instability causes major problems for society. Infrastructure may be damaged by river
channel erosion and flooding. Rivers
naturally flood, cause erosion, and relocate their channels but unstable rivers
may do so at alarming rates.
Understanding what causes rivers to become unstable is important so
that these changes can be reversed.
Understanding how humans induce river instability is complicated
because natural rivers erode at various rates. But understanding what causes rivers to
be stable is also important so that these features can be managed for.
research will employ signal-processing techniques to investigate the
structure of riverbeds. There is
some confusion in the literature about how these techniques can be applied
to river problems. In particular, we
will investigate the applicability of various signal-processing techniques
to the discovery of periodic or recurrent features in river systems. These recurrent features have implications
for river channel stability. This research will be conducted in
collaboration between Dr. Burge and Dr. Corbett. Dr. Corbett will provide mathematical
expertise and Dr. Burge will provide the data and expertise on river
processes. The majority of the data
for the analysis was collected during the summers of 2000 and 2001. Additional data will be collected on
Mission Creek in the summer of 2007.