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Post-Alex
Side-Scan Sonar and Multibeam Surveys: Raleigh
Bay, North Carolina |
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Geodynamics
was contracted by the U.S. Geological Survey Woods
Hole Science Center to assist in detailed Side Scan
and
Multibeam Sonar mapping of central Raleigh Bay, North
Carolina immediately following the landfall of Hurricane
Alex in August of 2004. The focus of the study
was to remap a region of Raleigh Bay surveyed prior
to the Hurricane Isabel by the USGS and after
Hurricane Isabel by the USGS and Geodynamics to gain important insight into shoreface-shelf sediment
transport. |
 Post-Hurricane
Alex Survey Area |
 R/V
4-Points – nearshore multibeam & side
scan sonar data acquisition |
Data
collected by the USGS and Geodynamics for this
project were used
to compare pre- and post-storm impacts to seafloor
features such as ripple-scour depressions (Thieler
et. al., 2001) and to assess mobility of inner
shelf sediment
in their ongoing efforts to
gain a detailed understanding of the geologic framework
and coastal processes along the NC coast (see
more). |
Geodynamics'
custom survey launch (R/V 4-Points) was a critical
link
in completing this post-storm
survey project. The mobility and custom design of the
R/V 4-Points allowed us to mobilize on site and deploy
a variety of hydrogaphic instrumentation within 2 days
of Hurricane Alex’s landfall.
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 EM3000
Multibeam Bathymetry and Backscatter Imagery over
USGS Klien 3000 Side Scan Sonar
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152 Hawthorne Drive
- Pine Knoll Shores, North Carolina 28512 - 252-247-5785
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