2022-326-FA (CMHRP activity #8992)

Field Activity 2022-326-FA

Identifier

2022-326-FA

Alternate names

DUNEX

Purpose

Geophysical data to explore sub-seafloor changes in geology resulting from storms.

Location

USACE, Field Research Facility

Summary

Successfully acquired 16 sub-bottom profile lines.

Info derived

Seafloor morphology (USACE); sub-seafloor geology (USGS)

Projects

Coastal Sediment Availability and Flux - CSAF

Platform

USACE LARC-5

The LARC-5 (Lighter Amphibious Resupply Cargo) is an Army amphibious vehicle that is used to deploy instruments, support diving activities, collect data, and tow a variety of sensor and survey "sleds". The LARC-5 survey vehicle is 10.6 m (35 ft) long, 3 m (10.2 ft) wide and 3.3 m (11 ft) tall. It has a maximum land speed of 40 kph (25 mph) and approximately 11 kph in water, with a typical survey speed of 7 kph.

Vehicles

Ford F-250 Stone Grey

Itinerary

Start	Duck, NC	2022-07-10
End	Duck, NC	2022-07-16
Days in the field	3

Bounds

West	-75.75321844
East	-75.74082832
North	36.19026722
South	36.17650312

Personnel

Organization

U.S. Army Corps of Engineers(USACE)

Organization

USGS, St. Petersburg Coastal and Marine Science Center(SPCMSC)

600 Fourth Street South

St. Petersburg, FL33701-4846

(727) 502-8000

Principal investigators

Jennifer L Miselis

Crew members

Information specialist(s)

Arnell S Forde	Specialist, Information
Nancy T DeWitt	Specialist, Information
Noreen A Buster	Specialist, Information

Affiliate principal

Ian Conery, U.S. Army Corps of Engineers

Data types and categories

Data category:	Location-Elevation, Seismics
Data type:	Navigation, Sub Bottom Profiler

Equipment used

Equipment	Usage description	Data types	Datasets
GPS		Navigation	1
Chirp 512i		Sub Bottom Profiler	3

Datasets

Datasets compiled from multiple sources

Dataset name	Equipment	Description	Dataset contact
DUNEX_nav	GPS	Navigation data for the entire survey, 1000-shot-interval locations, start of line locations, and data dictionary	Arnell S Forde
DUNEX_segy	Chirp 512i	Digital chirp sub-bottom trace data	Arnell S Forde
DUNEX_seisimag	Chirp 512i	Processed sub-bottom profile images	Arnell S Forde
DUNEX_gis	Chirp 512i	Sub-bottom profile data geospatial files and data dictionary	Arnell S Forde