An Investigation of the Hazard Associated with the Alluvial Fans on the Kaikoura Coast, South Island, New Zealand
thesis
posted on 2022-03-01, 01:32 authored by Erin Julia BaylisThree large alluvial fans on the northeast coast of the South Island
between Kekerengu and the Clarence River mouth present a potential
hazard to both State Highway 1 and the South Island Main Trunk Rail Line
between Picton and Christchurch, which pass over top of them, and to
their users. Climate changes are predicted in future for New
Zealand, and may lead to longer warm dry weather periods with heavier
rainfall occurrences for the east coast of the South Island. Locations
of erosion, the streams' ability to transport sediment and the frequency
and magnitude of hazardous fluvial sediment events associated with
these alluvial fans could potentially alter due to these
predicted future climatic changes, altering the potential hazard to the
state highway and the railway line. The underlying purpose of this
thesis is to understand the hazard posed by sediment events onto these
three alluvial fans and how this may alter in relation to climate change.