Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 20220919 Title: Low-altitude aerial imagery collected from a Helikite at Head of the Meadow Beach, Truro on March 10, 2022 Edition: 1.0 Geospatial_Data_Presentation_Form: raster and tabular digital data Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9GEVWG1 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/P9GEVWG1 Online_Linkage: https://www.sciencebase.gov/catalog/item/62dfef6ad34e952be90980bb Larger_Work_Citation: 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 Beach, Truro, MA in March 2022, U.S. Geological Survey Field Activity 2022-015-FA Edition: 1.0 Geospatial_Data_Presentation_Form: digital data 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: Over, J.R., Sherwood, C.R., and Traykovski, P.A., 2022, 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: U.S. Geological Survey data release, https://doi.org/10.5066/P9GEVWG1. Online_Linkage: https://doi.org/10.5066/P9GEVWG1 Online_Linkage: https://www.sciencebase.gov/catalog/item/62dee095d34e952be909417b Description: Abstract: These data map the beach and nearshore environment at Head of the Meadow Beach in Truro, MA, providing updated regional context for the 2019 CoastCam installation. CoastCam CACO-01 are two video cameras aimed at the beach that view the coast shared by beachgoers, shorebirds, seals, and sharks. These data were collected as part of field activity 2022-015-FA and a collaboration with the National Park Service at Cape Cod National Seashore to monitor the region. In March 2022, U.S. Geological Survey and Woods Hole Oceanographic Institute (WHOI) scientists conducted field surveys to re-map the field of view of the CoastCam. Aerial images of the beach for use in structure from motion were taken with a camera (Sony a6000) and a post-processed kinematic (PPK) system attached to a helium filled balloon-kite (Helikite). High-precision GPS targets (AeroPoints) and numbered black and white tarps 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. 1.8.1) was used to create a digital surface model with the collected imagery, which was merged with the bathymetry in MATLAB (v. 2020b) to create a continuous topobathy product. Purpose: Images and positions are used in structure from motion to produce the derivative surface model and orthomosaic. Supplemental_Information: Bounding coordinates are based on image positions and may not reflect the full extent of the final product. For more information about the WHCMSC Field Activity, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2022-015-FA. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 20220310 Currentness_Reference: ground condition; single survey day: aerial imagery was collected on March 10, 2022. Status: Progress: Complete Maintenance_and_Update_Frequency: Not planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.07932595 East_Bounding_Coordinate: -70.07457069 North_Bounding_Coordinate: 42.05276130 South_Bounding_Coordinate: 42.04972995 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: photographs Theme_Keyword: JPEG Theme_Keyword: low-altitude aerial imagery Theme_Keyword: aerial imagery Theme_Keyword: UAS Theme_Keyword: Unmanned aerial system 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: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme_Keyword: oceans Theme_Keyword: location Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:62dfef6ad34e952be90980bb Place: Place_Keyword_Thesaurus: Common geographic areas Place_Keyword: United States Place_Keyword: Truro Place_Keyword: Massachusetts Place_Keyword: Cape Cod Access_Constraints: None Use_Constraints: Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Although these data have been processed successfully on a computer system at 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. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein. Not for navigational use. 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 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: https://www.sciencebase.gov/catalog/file/get/62dfef6ad34e952be90980bb?name=2022015FA_Truro_HelikiteCameraAttachment_browse.JPG&allowOpen=true 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: Adobe Lightroom Classic, EXIF Tool v. 12.06, Inertial Explorer v. 8.70.8722, Namexif v. 2.2 Cross_Reference: Citation_Information: Originator: Jin-Si R. Over Originator: Chris R. Sherwood Originator: Peter A. Traykovski Originator: Sandra M. Brosnahan Originator: Marinna A. Martini Originator: Eric Marsjanik Publication_Date: 2021 Title: 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 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 Other_Citation_Details: This publication is the original/first survey data of Head of the Meadow beach from 2020. Online_Linkage: https://doi.org/10.5066/P9KSG1RQ Cross_Reference: Citation_Information: Originator: Jin-Si R. Over Originator: Christopher 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: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Hazards and Resources Program Other_Citation_Details: This publication is the 2021 field data at Head of the Meadow Beach. Online_Linkage: https://doi.org/10.5066/P9D94NZ3 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The camera (Sony a6000) used on the Helikite acquires 24 megapixel photos, with file sizes generally between 1 and 3 MB on disc, depending on image complexity. Some images are blurry due to movement and changing low light conditions. Images were corrected in Adobe Lightroom to improve color balance. Logical_Consistency_Report: One flight was flown at a target elevation of 40-50 m to map the Head of the Meadow Beach shoreline and bluff face in Truro, MA, on March 10, 2022. Completeness_Report: Photographs were captured every 2 seconds for a total of 1,646 images, but only 1,616 are provided; images taken while the Helikite was launched and recovered were removed. All photos included have location information. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Though the images do not represent spatial data, the latitude and longitude is embedded in the photos and available in the EXIF header of each image, which is derived from the provided Helikite navigation file (2022015FA_Truro_photolocations.csv). The location information was acquired from a GNSS receiver (EMLID Reach M2) in PPK mode with a Multi-band GNSS antenna and hot shoe adapter to the camera with an estimated horizontal accuracy of 10 cm. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Though the images do not represent spatial data, the altitude is embedded in the EXIF header of each image, which is provided in the Helikite navigation file (2022015FA_Truro_f1_photolocations.csv). The location information was acquired from a GNSS receiver (EMLID Reach M2) in PPK mode with a multi-band GNSS antenna and hot shoe adapter to the camera with an estimated vertical accuracy of 5 cm. Lineage: Process_Step: Process_Description: These JPEG images were collected with a camera (Sony a6000) wired to the GNSS receiver 15 cm vertically offset from the focal point and hung from the Helikite (2022015FA_Truro_HelikiteCameraAttachment_browse.JPG) so that the camera faced downward. 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. The horizontal positions and elevations of each image (2022015FA_Truro_photolocations.csv) were recorded from the GNSS receiver (EMLID Reach M2) and processed in PPK mode using the MASS CORS network. The navigation data was added to the image EXIF information after the flight as described in the process steps. It is recommended when using the imagery for photogrammetric purposes to also use the ground control point locations (see larger work citation Navigation: 2022015FA_Truro_nav_GCPs.csv). Photos were downloaded and adjusted in Adobe Lightroom Classic for brightness due to the changing cloud conditions. Process_Date: 20220310 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: 02543-1598 Contact_Voice_Telephone: 508-289-2638 Contact_Electronic_Mail_Address: ptraykovski@whoi.edu Process_Step: Process_Description: The GNSS navigation data was processed in Inertial Explorer (https://novatel.com/products/waypoint-software/inertial-explorer, version 8.70.8722). The positions were processed in the NAD83(2011) datum, which provided the Latitude, Longitude, and Ellipsoid attributes. Then Geoid 12B was applied using NAVD88 as the vertical datum and UTM Zone 19N for the horizontal coordinate reference system to produce the Northing, Easting, and Altitude attributes. The GPS offset was not accounted for in this step, so the offset should be accounted for when deriving other products. All of the attributes here are provided in the 2022015FA_Truro_f1_photolocations.csv but only the latitude, longitude, and altitude (NAVD88) were embedded in the image header. Process_Date: 202203 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: 02543-1598 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. 1. Using the GNSS navigation from the previous step, ExifTools was used to tag each photo with the following tags: Credit, Copyright, UsageTerms, ImageDescription, Artist, 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). Keywords were added with the following command in the directory with all the photographs: exiftool -keywords="aerial imagery" -keywords="Head of the Meadow Beach" -keywords=Massachusetts -keywords="2022-015-FA" -keywords=USGS -overwrite_original *.jpg 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 '2022015FA_f01s6000_20220310T165822Z_image####.jpg', 2022015FA is the survey ID, f01 is the flight number, s6000 is the camera make (SONY) and model (6000), and 20220310 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. Because the camera time was collected in EST the time in Namexif was shifted +4:00:00 to be in UTC. Process_Date: 202204 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jin-Si R. Over Contact_Organization: U.S. Geological Survey, Northeast Region 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_Data_Organization_Information: Indirect_Spatial_Reference: embedded in EXIF Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 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, using geoid 12B 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: 2022015FA_Truro_photolocations.csv contains 1,616 data records. Entity_Type_Definition: The CSV file contains the post-processed Helikite navigation GNSS data (approximate position 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: Time_EST Attribute_Definition: Time in HH:MM:SS of each corrected camera position in Eastern Standard Time (EST). Attribute_Definition_Source: Processor defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 12:00:13 Range_Domain_Maximum: 12:53:55 Attribute_Units_of_Measure: HH:MM:SS EST Attribute: Attribute_Label: Latitude Attribute_Definition: Post-processed interpolated latitude of kite GNSS antenna position based on time of each image capture, in decimal degrees (NAD83[2011]). Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 42.04972995 Range_Domain_Maximum: 42.05276130 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: Longtitude Attribute_Definition: Post-processed interpolated longitude of kite GNSS antenna position based on time of each image capture, in decimal degrees (NAD83[2011]). Negative values represent W. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -70.07932595 Range_Domain_Maximum: -70.07457069 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: Ellipsoid_NAD83_2011 Attribute_Definition: Post-processed height in meters of kite GNSS antenna position based on time of each image capture using the NAD83(2011) reference ellipsoid. Attribute_Definition_Source: None Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 8.481 Range_Domain_Maximum: 30.668 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Northing Attribute_Definition: Post-processed interpolated X-coordinate of kite GNSS antenna position based on time of each image capture, in NAD83(2011)/UTM Zone 19N. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4655856.906 Range_Domain_Maximum: 4656197.204 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Easting Attribute_Definition: Post-processed interpolated Y-coordinate of kite GNSS antenna position based on time of each image capture, in NAD83(2011)/UTM Zone 19N. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 410684.699 Range_Domain_Maximum: 411076.312 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: Altitude_NAVD88_m Attribute_Definition: Post-processed interpolated Z-coordinate of kite GNSS antenna position based on time of each image using NAVD88 with Geoid 12B. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 36.065 Range_Domain_Maximum: 58.252 Attribute_Units_of_Measure: meters Overview_Description: Entity_and_Attribute_Overview: The attributes Latitude, Longitude, and Altitude_NAVD88_m are included in the image headers as GPSLatitude, GPSLongitude, and GPSAltitude, respectively. A GPSMapDatum header is also included in the images specifying that the latitude and longitude are in NAD83(2011) and altitude is in NAVD88 Geoid12B. Positions are derived from an Emlid Reach PPK GNSS receiver. Entity_and_Attribute_Detail_Citation: USGS Field Activity 2022-015-FA Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Jin-Si R. Over Contact_Organization: U.S. Geological Survey, Northeast Region 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: jover@usgs.gov Resource_Description: The Windows 10 zip folder 2022015FA_Truro_f1.zip contains 1,616 JPEG images and 2022015FA_Truro_f1_photolocations.csv contains the PPK GNSS navigation data for each image. Distribution_Liability: Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data or related materials. Any use of trade, product, or firm 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 2022015FA_Truro_f1.zip file contains 1,616 JPEGs. File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip Transfer_Size: 1890 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/62dfef6ad34e952be90980bb Network_Resource_Name: https://www.sciencebase.gov/catalog/item/62dfef6ad34e952be90980bb Network_Resource_Name: https://doi.org/10.5066/P9GEVWG1 Access_Instructions: The first link in the list above is to directly download all the data on the page (JPEG and CSV), the second to the data page to individually download files, and the third link is to the publication landing page. Digital_Form: Digital_Transfer_Information: Format_Name: CSV Format_Version_Number: Exported from Excel Office 365 16.01 Format_Information_Content: The 2022015FA_Truro_f1_photolocations.csv contains location data for the imagery. Transfer_Size: 0.19 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://www.sciencebase.gov/catalog/file/get/62dfef6ad34e952be90980bb Network_Resource_Name: https://www.sciencebase.gov/catalog/item/62dfef6ad34e952be90980bb Network_Resource_Name: https://doi.org/10.5066/P9GEVWG1 Access_Instructions: The first link in the list above is to directly download all the data on the page (JPEG and CSV), the second to the data page to individually download files, and the third link is to the publication landing page. 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. Metadata_Reference_Information: Metadata_Date: 20220919 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Jin-Si R. Over Contact_Organization: U.S. Geological Survey, Northeast Region 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 Metadata_Access_Constraints: None Metadata_Use_Constraints: None