2021-037-FA (CMHRP activity #8861)

Field Activity 2021-037-FA

Identifier

2021-037-FA

Purpose

Multi Beam Echosounder Testing

Location

Falmouth, MA

Summary

The USGS surveyed two areas in Woods Hole, MA to test the capabilities of a multibeam echo sounder. Eel Pond, the safe harbor in Woods Hole as well as the area around the Woods Hole Oceanographic Institution (WHOI) dock were surveyed using the USGS Woods Hole Reson T20R multibeam echo sounder on 11-10-2021 aboard the R/V Rafeal. Depth soundings as well as acoustic backscatter were collected using the T20R, sound velocity of the water column was collected using an AML-3 sound velocity profiler.

Info derived

Bathymetric Surface, Acoustic Backscatter

Comments

The area was successfully surveyed in a single day.

Projects

CMG-WH Core Competency - Marine Technology

Platform

Rafael

25 feet

Itinerary

Start	Falmouth, MA	2021-11-10
End	Falmouth, MA	2021-11-10
Days in the field	1

Bounds

West	-70.674708
East	-70.668386
North	41.527623
South	41.521177

Personnel

Organization

USGS, Woods Hole Coastal and Marine Science Center(WHCMSC)

384 Woods Hole Road

Quissett Campus

Woods Hole, MA02543-1598

(508) 548-8700

Principal investigators

William W DanforthEric MooreCharles R WorleyAlexander R Nichols

Crew members

William W Danforth	Scientist, Staff
Eric Moore	Scientist, Staff
Charles R Worley	Scientist, Staff
Alexander R Nichols	Scientist, Staff

Information specialist(s)

William W Danforth

Specialist, Information

Data types and categories

Data category:	Sonar, Location-Elevation
Data type:	Sound Velocity, Multibeam, Navigation

Equipment used

Equipment	Usage description	Data types	Datasets
POS-MV	Vessel navigation and attitude data were acquired using an Applanix POS MV Wavemaster (model 220, V5) located in the Rafael cabin, with data coming in from an inertial measurement unit and two GNSS antennas. Data were monitored using Applanix POSView software.	Navigation	(no data reported)
Sensor - SVP	Sound velocity profiles were collected by hand deploying the AML-3 sound velocity profiler over the aft port side gunwale of the Rafael. The profiler was lowered through the water column to the sea floor.	Sound Velocity	(no data reported)
Reson T20-P	Multibeam echo sounder (MBES) bathymetry and backscatter data were collected using dual-head Teledyne T20-R sonars connected to the topside Teledyne Integrated Dual Head (IDH) processor. The sonars were attached to a bracket mounted to a pole which was deployed over the aft starboard gunwale. Data from the sonars were transmitted via cables to a monitoring workstation located in the cabin of the Rafael.	Multibeam, Water column reflectivity	3

Datasets

Datasets produced in this activity

Dataset name	Equipment	Description	Dataset contact
2021-037-FA_ResonT20R_Backscatter_50cm	Reson T20-P	Multibeam backscatter data collected in the vicinity of Woods Hole, Massachusetts, during USGS Field Activity 2021-037-FA using a dual-head Teledyne Seabat T20-R multibeam echo sounder (8-bit grayscale GeoTIFF, UTM Zone 19N, WGS 84, 50-cm resolution)	Eric Moore
2021-037-FA_ResonT20R_Bathymetry_50cm	Reson T20-P	Multibeam bathymetric data collected in the vicinity of Woods Hole, Massachusetts, during USGS Field Activity 2021-037-FA using a dual-head Teledyne Seabat T20-R multibeam echo sounder (32-bit GeoTIFF, UTM Zone 19N, WGS 84, GEOID 18 (MSL) Vertical Datum, 50cm resolution)	Eric Moore
2021-037-FA_ResonT20R_Tracklines	Reson T20-P	Trackline navigation collected in the vicinity of Woods Hole, Massachusetts, during USGS Field Activity 2021-037-FA using a dual-head Teledyne Seabat T20-R multibeam echo sounder (Esri polyline shapefile, UTM Zone 19N, WGS 84)	Eric Moore