Digital
Geomorphic Mapping of the
Coffey, Brian P.1, Charles W.
Hoffman1 (1)
Regional mapping for modern and relict
geomorphic features along the Cape Hatteras National
Seashore,
Active geomorphic feature classes mapped
from this overwash-dominated island system include:
beach, spit complex, fore-island dune complex, overwash
complex, interior dunes, interior marsh, back-barrier berms
(elevated sloping highs landward of the overwash
complex), and marsh platforms. In addition, relict spit complexes and relict
fore-island dune complexes were mapped on more complex island segments behind
the active beach system. Companion studies involving field-based mapping of
features in smaller island segments with the study area have been compared to
ensure accuracy and consistency of geomorphic features remotely delineated from
the remotely sensed data layers.
The compiled digital dataset will be
available to the general public in GIS format. Future research will undertake
similar remote mapping along the Cape Lookout National Seashore just south of
the current study area, roughly doubling the size of this digital dimensional
database from an extraordinary modern barrier system.
AAPG Search and Discover Article #90063©2007 AAPG Annual Convention, Long Beach, California