Topographic and bathymetric data, sediment samples, and imagery collected at Head of the Meadow Beach, Truro in March 2020, U.S Geological Survey Field Activity 2020-015-FA

Field activity number 2020-015-FA
Version 1.0
Area of operation Head of the Meadow Beach, Truro, Massachusetts
Dates March 4, 6,and 10, 2020
Chief scientist Christopher R. Sherwood
Contact Jin-Si Over
Publication Date March 22, 2021

May 25, 2021- Fixed typos in metadata keywords

Suggested citation: Over, J.R., Sherwood, C.R., Traykovski, P.A., Brosnahan, S.M., Martini, M.A., Marsjanik, E., Borden, J.S., 2020, Topographic and bathymetric data, sediment samples, and beach imagery collected at Head of the Meadow, Truro in March 2020, U.S Geological Survey Field Activity 2020-015-FA: U.S Geological Survey data release, https://doi.org/10.5066/P9KSG1RQ

Abstract: The data in this release map the beach and nearshore environment at Head of the Meadow Beach in Truro, MA and provide environmental context for the camera calibration information for the 2019 CoastCam installation that looks out at the coast shared by beachgoers, shorebirds, seals, and sharks. This is related to the field activity 2020-015-FA and a collaboration with the National Park Service at Cape Cod National Seashore to monitor the region that falls within the field of view of the CoastCam, which are two video cameras aimed at the beach. On March 4, 6, and 10, 2020, U.S Geological Survey and Woods Hole Oceanographic Institution (WHOI) scientists conducted field surveys to collect position and orientation information for the CoastCam cameras and map the field of view. Elevation data were collected using a real time kinematic – satellite navigation system (RTK-GNSS) receiver attached to a pole and walked on the beach. Point data of the beach face were collected along transects and at periodic locations of plywood targets moved throughout the day within the CoastCam viewGrain-size analysis was performed on sediment samples collected with a spade along multiple profiles from the bluff base to the intertidal zone. Images of the beach were taken with a camera (Ricoh GRII) and a post-processed kinematic (PPK) system attached to a kitesurfing kite, and high-precision targets (AeroPoints) were used as ground control points. Bathymetry was collected in the nearshore using a single-beam echosounder mounted on a surf capable self-righting electric autonomous survey vehicle. Agisoft Metashape (v. 1.6.1) was used to create a digital elevation model with the collected imagery and this was merged with the bathymetry in MatLab (v. 2020) to create a continuous topobathy product. 

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Topobathy

2020015FA_Truro_bathymetry
Single-beam bathymetry taken with echosounder mounted on autonomous surface vehicle (1-meter resolution cloud optimized 64-bit float GeoTIFF in UTM Zone 19N and Trackline data in CSV format)
browse graphic for bathymetry data TXT
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2020015FA_Truro_bathymetry.zip
1.46 MB
2020015FA_Truro_DSM
Digital surface model with 25-centimenter resolution made from the beach imagery using Agisoft Metashape (UTM Zone 19N 32-bit float GeoTIFF format).
browse graphc for digital surface model TXT
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2020015FA_Truro_DSM_25cm.tif
2.89 MB
2020015FA_Truro_topobathy
Merged 1-meter gridded bathymetry and digital elevation model. (UTM Zone 19N 64-bit float GeoTIFF format).
browse graphic for 1 meter gridded bathymetry TXT
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2020015FA_Truro_topobathy_1m.tif
3.70 MB

Samples

2020015FA_Truro_sedsamples
Location and grain size analysis of sediment samples collected at Head of the Meadow Beach (Geographic, NAD83, point shapefile, CSV, XLSX formats).
Data release location and grain size analysis of sediment samples browse graphci TXT
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2020015FA_Truro_sedsamples.zip
25.5 KB

Imagery

2020015FA_Truro_f1
Images collected with camera (Ricoh GRII) attached to a kite (Ozone Enduro V2) (JPEG image format, EXIF headers have been added to include navigation and time tags).
Data release imagery browse graphic

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2020015FA_Truro_f1.zip
3.70 GB

2020015FA_Truro_f2
Images collected with camera (Ricoh GRII) attached to a kite (Ozone Reo V5) (JPEG image format, EXIF headers have been added to include navigation and time tags).
Data release imagery browse graphic

2020015FA_Truro_f2.zip
1.59 GB

2020015FA_Truro_photolocations
Post-processed navigation file, including image times and corresponding camera positions. (CSV format).

2020015FA_Truro_f1_photolocations.csv
85 KB 2020015FA_Truro_f2_photolocations.csv
37 KB

Navigation

2020015FA_Truro_nav_transects
Real-time kinematic (RTK) elevation data from two Spectra Precision SP80 GNSS receivers during survey 2020-015-FA on Head of the Meadow Beach (CSV, and point shapefile format).
Data release navigation browse graphic

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2020015FA_Truro_navigation.zip
49 KB
2020015FA_Truro_nav_CoastCamTargets
Real-time kinematic (RTK) data from two Spectra Precision SP80 GNSS receivers to locate plywood targets and the CoastCams for use in calibration (CSV format).
Data release navigation browse graphic

2020015FA_Truro_nav_CoastCamTargets.csv
4 KB

2020015FA_Truro_ nav_AeroPoints
Post-processed kinematic (PPK) location data from deployed ground control targets (AeroPoints) (CSV format).
Data release navigation browse graphic

2020015FA_Truro _nav_AeroPoints.csv
2 KB