Low-altitude aerial imagery collected from a Helikite at Head of the Meadow Beach, Truro, MA on March 20, 2024

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Jin-Si R. Over
Originator: Peter A. Traykovski
Publication_Date: 20240530
Title:
Low-altitude aerial imagery collected from a Helikite at Head of the Meadow Beach, Truro, MA on March 20, 2024
Edition: 1.0
Geospatial_Data_Presentation_Form: imagery and tabular digital data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P1N57AEG
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher:
U.S. Geological Survey, Coastal and Marine Hazards and Resources Program
Online_Linkage: https://doi.org/10.5066/P1N57AEG
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Jin-Si R. Over
Originator: Chris R. Sherwood
Originator: Peter A. Traykovski
Originator: Mira M. Anderberg
Publication_Date: 2024
Title:
Topographic and bathymetric data, imagery, and ground control data collected at Head of the Meadow Beach, Truro, Massachusetts in February and March 2024
Edition: 1.0
Geospatial_Data_Presentation_Form: digital files
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P1N57AEG
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Suggested citation: Over, J.R., Sherwood, C.R., Traykovski, P.A., and Anderberg, M.M., 2024, Topographic and bathymetric data, imagery, and ground control data collected at Head of the Meadow Beach, Truro, Massachusetts in February and March 2024: U.S. Geological Survey data release, https://doi.org/10.5066/P1N57AEG.
Online_Linkage: https://doi.org/10.5066/P1N57AEG
Online_Linkage:
Description:
Abstract:
The data in this release re-map the beach and nearshore environment at Head of the Meadow Beach in Truro, MA and provide updated environmental context for the 2020 CoastCam installation that looks out at the coast shared by beachgoers, shorebirds, seals, and sharks. This is a collaboration with the National Park Service at Cape Cod National Seashore to monitor the region that falls within the field of view of CoastCam CACO-01, which are two video cameras aimed at the beach. In February and March 2024, U.S. Geological Survey and Woods Hole Oceanographic Institution (WHOI) scientists conducted field surveys to collect topographic and bathymetric data. Images of the beach for use in structure-from-motion were taken with a camera (SONY a6000) attached to a helium powered balloon-kite (Helikite). High-precision GPS 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 surface vehicle. Agisoft Metashape (v. 2.1.0) was used to create a digital surface model and orthomosaic with the collected imagery.
Purpose:
These RGB 3-band images were collected to map the beach and bluffs with sufficient overlap to produce structure-from-motion photogrammetry products. Each image has position information extracted from the Metashape project.
Supplemental_Information:
For more information about the WHCMSC Field Activity, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2024-011-FA. Images can be viewed on the USGS Imagery Data System without downloading them from sciencebase here https://cmgds.marine.usgs.gov/idsviewer/data_release/10.5066-P1N57AEG.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20240320
Currentness_Reference: ground condition; one day of data collection on March 10, 2023
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Not planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -70.07942169
East_Bounding_Coordinate: -70.07523059
North_Bounding_Coordinate: 42.04971420
South_Bounding_Coordinate: 42.05223817
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Hazards and Resources Program
Theme_Keyword: CMHRP
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: shoreline
Theme_Keyword: 3-band imagery
Theme_Keyword: shoreline photographs
Theme_Keyword: JPEG
Theme_Keyword: low-altitude aerial imagery
Theme_Keyword: aerial imagery
Theme_Keyword: UAS
Theme_Keyword: Helikite
Theme_Keyword: geotagged photos
Theme:
Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: aerial and satellite photography
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: remote sensing
Theme_Keyword: aerial photography
Theme_Keyword: image collections
Theme_Keyword: geospatial datasets
Theme_Keyword: photography
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans
Theme_Keyword: location
Theme_Keyword: elevation
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:66168fcfd34e7eb9eb7d622f
Place:
Place_Keyword_Thesaurus: Common geographic areas
Place_Keyword: United States
Place_Keyword: Massachusetts
Place_Keyword: Truro
Place_Keyword: Cape Cod
Place:
Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Head of the Meadow Beach
Access_Constraints: None
Use_Constraints:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jin-Si R. Over
Contact_Organization:
U.S. Geological Survey, Woods Hole Coastal and Marine Science Center
Contact_Position: Geographer
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2297
Contact_Electronic_Mail_Address: jover@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description:
Photograph showing how the camera, GNSS, and antenna configuration attaches to the Helikite.
Browse_Graphic_File_Type: JPEG
Native_Data_Set_Environment:
EXIF Tool v. 12.06, Agisoft Metashape Pro v. 2.1.0, Namexif v. 2.4
Cross_Reference:
Citation_Information:
Originator: Jin-Si R. Over
Originator: Chris R. Sherwood
Originator: Peter A. Traykovski
Publication_Date: 2023
Title:
Topographic and bathymetric data, structure from motion imagery, and ground control data collected at Head of the Meadow Beach, Truro, MA in February and March 2023, U.S. Geological Survey Field Activity 2023-011-FA
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9FYVLCD
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
This publication is the survey data of Head of the Meadow Beach from 2023.
Online_Linkage: https://doi.org/10.5066/P9FYVLCD
Cross_Reference:
Citation_Information:
Originator: Jin-Si R. Over
Originator: Chris R. Sherwood
Originator: Peter A. Traykovski
Originator: Eric Marsjanik
Publication_Date: 2022
Title:
Topographic and bathymetric data, structure from motion imagery, and ground control data collected at Head of the Meadow Beach, Truro, MA in March 2022, U.S. Geological Survey Field Activity 2022-015-FA
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9GEVWG1
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
This publication is the survey data of Head of the Meadow Beach from 2022.
Online_Linkage: https://doi.org/10.5066/P9GEVWG1
Cross_Reference:
Citation_Information:
Originator: Jin-Si R. Over
Originator: Chris R. Sherwood
Originator: Peter A. Traykovski
Publication_Date: 2022
Title:
Topographic and bathymetric data, structure from motion imagery, and ground control data collected at Head of the Meadow, Truro in February 2021, U.S Geological Survey Field Activity 2021-014-FA
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9D94NZ3
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
This publication is the survey data of Head of the Meadow Beach from 2021.
Online_Linkage: https://doi.org/10.5066/P9D94NZ3
Cross_Reference:
Citation_Information:
Originator: Jin-Si R. Over
Originator: Chris R. Sherwood
Originator: Peter A. Traykovski
Originator: Sandra M. Brosnahan
Originator: Eric E. Marsjanik
Originator: John S. Borden
Publication_Date: 2021
Title:
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
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9KSG1RQ
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
This publication is the survey data of Head of the Meadow Beach from 2020.
Online_Linkage: https://doi.org/10.5066/P9KSG1RQ
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The camera (Sony a6000) used on the Helikite acquired 24 megapixel photos, with file sizes generally between 8 and 10 MB on disc, depending on image complexity. Some images were blurry due to movement and changing low light conditions.
Logical_Consistency_Report:
One flight was flown at a target elevation of 40-60 m to map the Head of the Meadow Beach shoreline and bluff face in Truro, MA, on March 10, 2023.
Completeness_Report:
Photographs were captured every 5 seconds but only 1429 are provided; images taken while the Helikite was launched and put away were removed. All photos included have location information. Due to tide and wind conditions the lower beach was not captured and the total area surveyed is smaller than previous surveys (see Cross References).
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Though the images do not represent spatial data, the spatial information is available in the EXIF header of each image, which is derived from the Agisoft Metashape project estimated locations, and is provided in the larger work citation (2024-011-FA_HOM_photoLocations.csv). The horizontal accuracy of the project is 3 cm.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
Though the images do not represent spatial data, the spatial information is available in the EXIF header of each image, which is derived from the Agisoft Metashape project estimated locations, and is provided in the larger work citation (2024-011-FA_HOM_photoLocations.csv). The vertical accuracy of the project is 1 cm.
Lineage:
Process_Step:
Process_Description:
These JPEG images were collected with a camera (Sony a6000) hung from the Helikite via a Go-Pro mount (2024-011-FA_HOM_imagery_browse.JPG) so that the camera faced downward and towards the bluff at about 40 degrees. The Helikite was on a 60 m string and kitesurfing harness; together the Helikite and gear were walked up and down the beach to achieve overlapping images taken every 5 seconds.
Process_Date: 202403
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Peter Traykovski
Contact_Organization: Woods Hole Oceanographic Institution
Contact_Position: Associate Scientist
Contact_Address:
Address_Type: mailing and physical address
Address: 226 Woods Hole Rd, MS #12
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Contact_Voice_Telephone: 508-289-2638
Contact_Electronic_Mail_Address: ptraykovski@whoi.edu
Process_Step:
Process_Description:
The images acquired with the camera were geotagged and processed to add additional information required by the USGS to the EXIF headers using ExifTools (https://exiftool.org/, version: 12.06), and the files were renamed to a unique identifier using Namexif (http://www.digicamsoft.com/softnamexif.html, version 2.1) to avoid any possibility of duplicate names. These steps are described here. For more information on the EXIF tags here and automatically populated by the camera see https://exiftool.org/TagNames/EXIF.html
1. The horizontal positions and elevations of each image (2024-011-FA_HOM_photoLocations.csv) are from the estimated locations in the Metashape project that was reconstructed using structure from motion based on the images and AeroPoints (see larger work citation). ExifTools was used to tag each photo with the following tags: Credit, Copyright, UsageTerms, ImageDescription, Artist, XMP:ExternalMetadataLink, XMP:UsageTerms, XMP:AttributionURL, XMP:PreservedFilename, GPSTimeStamp, GPSAltitudeRef, GPSLatitudeRef, GPSLongitudeRef, GPSAreaInfo, GPSMapDatum, GPSLatitude, GPSLongitude, and GPSAltitude stored in a CSV file with the command:' -exiftool -csv="C:\directory\name\Geotags_EXIF.csv" C:\directory\name\of\photos *.JPG
The first row of the CSV are the tag names; the first column is SourceName (unique image names).
To read out the photo information to a CSV when in the directory with the photos the command is: exiftool -csv *.JPG > directory/name/allheaders_out.csv
2. All the JPEG images were renamed with Namexif (https://us.digicamsoft.com/softnamexif.html v 2.2 accessed April 2020) to ensure unique filenames and compliance with the USGS Coastal and Marine Hazards and Resources Program's best practices for image naming convention. Images were renamed with the field survey ID prefix; flight number, and ID that distinguishes USGS cameras by make/camera number, the image acquisition date, coordinated universal time (UTC) in ISO8601 format, and a suffix with the original image name. For example, image name '2024011FA_f01s6000_20240320T165822Z_image####.jpg', 2024011FA is the survey ID, f01 is the flight number, s6000 is the camera make (SONY) and model (6000), and 20240320 is the UTC date in the format YYYYMMDD. A 'T' is used to separate UTC date from UTC time in format HHMMSS followed by a Z, and image####.jpg is the original raw photo name appended to the end of the new filename.
Process_Date: 202404
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jin-Si R. Over
Contact_Organization:
U.S. Geological Survey, Woods Hole Coastal and Marine Science Center
Contact_Position: Geographer
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2297
Contact_Electronic_Mail_Address: jover@usgs.gov
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.00000001
Longitude_Resolution: 0.00000001
Geographic_Coordinate_Units: Decimal degrees
Geodetic_Model:
Horizontal_Datum_Name:
North American Datum of 1983 (National Spatial Reference System 2011)
Ellipsoid_Name: GRS_1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 0.001
Altitude_Distance_Units: meters
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: 2024-011-FA_HOM_f1.zip contains 1,459 photos.
Entity_Type_Definition: JPEG photos taken from the SONY a6000.
Entity_Type_Definition_Source: USGS
Detailed_Description:
Entity_Type:
Entity_Type_Label: 2024-011-FA_HOM_photoLocations.csv contains 1,459 data records.
Entity_Type_Definition:
The CSV file contains the estimated location of the camera at the moment of each image capture).
Entity_Type_Definition_Source: USGS
Attribute:
Attribute_Label: ImageName
Attribute_Definition:
File names of individual images, see the Data_Quality_Information and Process_Description for file naming convention.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Character string.
Attribute:
Attribute_Label: Date
Attribute_Definition: Date photos were collected in YYYYMMDD
Attribute_Definition_Source: Processor defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 20240320
Range_Domain_Maximum: 20240320
Attribute_Units_of_Measure: YYYYMMDD
Attribute:
Attribute_Label: Time_UTC
Attribute_Definition:
Time in HH:MM:SS of the camera position based on the GPS in coordinated universal time (UTC).
Attribute_Definition_Source: Processor defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 12:10:34
Range_Domain_Maximum: 13:23:28
Attribute_Units_of_Measure: HH:MM:SS UTC
Attribute:
Attribute_Label: Latitude NAD83[2011]
Attribute_Definition:
Estimated latitude of camera position based on SfM reconstruction, in decimal degrees (NAD83[2011]).
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 42.04971420
Range_Domain_Maximum: 42.05223817
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: Longtitude NAD83[2011]
Attribute_Definition:
Estimated longitude of camera position based on SfM reconstruction, in decimal degrees (NAD83[2011]).
Attribute_Definition_Source: None
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -70.07942169
Range_Domain_Maximum: -70.07523059
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: Ellipsoid NAD83[2011]
Attribute_Definition:
Estimated altitude of camera position based on SfM reconstruction, in relation to the NAD83(2011) reference ellipsoid.
Attribute_Definition_Source: None
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -10.210
Range_Domain_Maximum: 25.963
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Northing 19N
Attribute_Definition:
Estimated X-coordinate of camera position based on SfM reconstruction, in NAD83(2011)/UTM Zone 19N.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4655856.220
Range_Domain_Maximum: 4656139.176
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Easting 19N
Attribute_Definition:
Estimated Y-coordinate of camera position based on SfM reconstruction in NAD83(2011)/UTM Zone 19N.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 410676.799
Range_Domain_Maximum: 411021.810
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Orthometric NAVD88
Attribute_Definition:
Estimated Z-coordinate of camera position based on SfM reconstruction, in relation to the NAVD88 datum with Geoid 18.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 17.374
Range_Domain_Maximum: 53.551
Attribute_Units_of_Measure: meters
Overview_Description:
Entity_and_Attribute_Overview:
The attributes Latitude NAD83[2011], Longitude NAD83[2011], and Orthometric NAVD88 were included in the image headers as GPSLatitude, GPSLongitude, and GPSAltitude, respectively. A GPSMapDatum header was also included in the images specifying that the latitude and longitude are in NAD83(2011) and altitude is in NAVD88 Geoid18.
Entity_and_Attribute_Detail_Citation: USGS Field Activity 2024-011-FA
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey - ScienceBase
Contact_Address:
Address_Type: mailing and physical address
Address: Denver Federal Center, Building 810, Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225
Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov
Resource_Description:
The Windows 10 zip file 2024-011-FA_HOM_f1.zip contains 1,459 JPEG images and 2024-011-FA_HOM_photolocations.csv contains the PPK GNSS navigation data.
Distribution_Liability:
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: JPEG
Format_Version_Number: 1.0.0
Format_Specification: JPEG
Format_Information_Content: The 2024-011-FA_HOM_f1.zip file contains 1,459 JPEGs
File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip
Transfer_Size: 10300
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link in the list above is to the child page where files can be downloaded individually, the second link is to directly download all the data on the page, and the third link is to the Imagery Data System where the photos can be viewed and downloaded individually, and the fourth link is to the doi to the main publication. Note that the imagery zip file is over 2 GB so if the second link is not currently supported, use the first link to choose files to download.
Digital_Form:
Digital_Transfer_Information:
Format_Name: CSV
Format_Version_Number: Exported from Excel Office 365 16.01
Format_Information_Content:
The CSV file 2024-011-FA_HOM_photoLocations.csv contains photo location information.
Transfer_Size: 0.117
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link in the list above is to the child page where files can be downloaded individually, the second link is to directly download all the data on the page, and the third link is the doi to the main publication. Note that the imagery zip file is over 2 GB so if the second link is not currently supported, use the first link to choose files to download.
Fees: none
Technical_Prerequisites:
Use of these files requires software capable of opening JPEG images and, if desired, capable of reading the associated EXIF information. Additionally, the location information is provided in a CSV file for the user to utilize with appropriate software.
Metadata_Reference_Information:
Metadata_Date: 20240530
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jin-Si R. Over
Contact_Organization:
U.S. Geological Survey, Woods Hole Coastal and Marine Science Center
Contact_Position: Geographer
Contact_Address:
Address_Type: mailing and physical
Address: U.S. Geological Survey
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2297
Contact_Electronic_Mail_Address: whsc_data_contact@usgs.gov
Contact_Instructions:
The metadata contact email address is a generic address in the event the person is no longer with USGS.
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

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