Low-altitude aerial imagery collected from a kite at Head of the Meadow Beach, Truro during field activity 2020-015-FA on March 6, 2020

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2021
Title:
Low-altitude aerial imagery collected from a kite at Head of the Meadow Beach, Truro during field activity 2020-015-FA on March 6, 2020
Edition: 1.0
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9KSG1RQ
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/P9KSG1RQ
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: C. Sherwood
Originator: P. Traykovski
Originator: J. Over
Originator: J. Borden
Originator: S. Brosnahan
Originator: E. Marsjanik
Originator: M. Martini
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
Edition: 1.0
Geospatial_Data_Presentation_Form: digital files
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:
Over, J.R., Sherwood, C.R., Traykovski, P., Brosnahan, S.M., Martini, M.A., Marsjanik, E., Borden, J., 2021, 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.
Online_Linkage: https://doi.org/10.5066/P9KSG1RQ
Description:
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 view. Grain-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.
Purpose:
These RGB 3-band images were collected of the waterline, beach, and bluffs with sufficient overlap to produce structure-from-motion photogrammetry products to create a model of Head of the Meadow Beach.
Supplemental_Information:
For more information about the WHCMSC Field Activity, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2020-015-FA.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20200306
Ending_Date: 20200306
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: Not planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -70.07913475
East_Bounding_Coordinate: -70.07551904
North_Bounding_Coordinate: 42.05311493
South_Bounding_Coordinate: 42.05026525
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:7586fa6e-e7ce-4720-8750-4d7096e7d5d1
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: JPG
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_Keyword: elevation
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: USA
Place_Keyword: Truro
Place_Keyword: Massachusetts
Place_Keyword: Head of the Meadow Beach
Place_Keyword: Cape Cod National Seashore
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 Over
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing and physical address
Address: U.S. Geological Survey
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2269
Contact_Electronic_Mail_Address: jover@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: 2020015FA_Truro_beachimages_browse.JPG
Browse_Graphic_File_Description: Example still image of Head of the Meadow Beach, Truro MA
Browse_Graphic_File_Type: JPG
Browse_Graphic:
Browse_Graphic_File_Name: 2020015FA_Truro_CameraGNSS_browse.JPG
Browse_Graphic_File_Description:
Photograph showing how the Camera is connected to the GNSS receiver on a plastic flange.
Browse_Graphic_File_Type: JPG
Browse_Graphic:
Browse_Graphic_File_Name: 2020015FA_Truro_KiteCameraAttachment_browse.JPG
Browse_Graphic_File_Description:
Photograph shoing how the camera, GNSS, and antenna configuration attaches to the kitesurfing kite pole.
Browse_Graphic_File_Type: JPG
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The camera (Ricoh GRII HD) used on the kite acquires photos at 16.2 Megapixels, with file sizes generally between 4 and 6 MB on disc, depending on image complexity. The GPS used on the kite has theoretical vertical and horizontal accuracies of 5 meters.
Logical_Consistency_Report:
Two flights, separated by 35 minutes, were flown at a target elevation of 40-50 m. The first flight, consisting of 719 images, was flown with the camera facing southeast towards the bluff at a low oblique angle and overlap was achieved by zigzagging from the ocean to the beach from the southeast to the northwest. The second flight, consisting of 313 images was flown with the camera facing northwest towards the beach and ocean with one pass alongshore at a higher oblique angle before resuming a pattern and angle similar to the first flight. There are a total of 1,032 JPG images.
Completeness_Report:
Two flights were conducted to map the Head of the Meadow Beach shoreline and bluff face in Truro, MA, on March 6, 2020. Photographs were captured every 5 seconds. Photos were removed for quailty control purposes if they were considered to be useless for photogrammetry purposes (taken when landing or raising the kites), this may explain the nonconsecutive unique image names. All photos included have location information. Users are advised to read the rest of the metadata record carefully for additional details.
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 provided kite navigation files (2020015FA_Truro_f1_photolocations.csv and 2020015FA_Truro_f2_photolocations.csv). The location information was acquired from a GNSS receiver (EMLID Reach M2) in PPK mode with a Multi-band GNSS antenna and hotshoe adapter with an estimated horizontal accuracy of 5 m.
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 provided kite navigation files (2020015FA_Truro_f1_photolocations.csv and 2020015FA_Truro_f2_photolocations.csv). The location information was acquired from a GNSS receiver (EMLID Reach M2) in PPK mode with a multi-band GNSS antenna and hotshoe adapter with an estimated vertical accuracy of 5 m.
Lineage:
Process_Step:
Process_Description:
These JPG images were collected with a camera (Ricoh GRII HD) labeled 'r##', where 'r' indicates a Ricoh camera, and the following 2 digits normally indicate the camera ID. The camera was wired to the GNSS receiver and duct taped to a PVC flange (2020015FA_Truro_CameraGNSS_browse.JPG), which was mounted with the multi-band GNSS antenna on the back of the camera on an 11 meter Ozone Enduro V2 kitesurfing kite (2020015FA_Truro_KiteCameraAttachment_browse.JPG) for the first flight and then switched to a 9 meter Ozone Reo V5 kite for the second flight when the wind picked up. The kites were on a 50 meter string and Ozone Contact Water V4 control bar, the latter which was walked down the beach. The camera orientation for all flights was oblique based on the nature of maintaining control of the kite. Horizontal positions and elevations of each image (2020015FA_Truro_f1_photolocations.csv and 2020015FA_Truro_f2_photolocations.csv) were recorded from an GNSS receiver (EMLID Reach M2), which were processed in PPK mode with a base station (JAVAD Triumph-1). The navigation data is added to the image EXIF information after the flight as described in the process steps. These JPG images may be used with photogrammetric software to produce geolocated point clouds, digital elevation models, orthomosaics, and other products. It is recommended when using the software to also use the navigation positions and the Aeropoint locations (see larger work citation Navigation: 2020015FA_Truro_nav_AeroPoints.csv) as ground control points. Note that not all images may align when processed in photogrammetry software.
Process_Date: 20200306
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). In the software, the data were processed using an 'Antenna Height' of 0.0 m to indicate that there was no offset from the camera. The positions were processed in the NAD83(2011) datum, providing the Latitude, Longitude, and H_Ell_m attributes and then Geoid 12B was applied using NAVD88 as the vertical datum in the UTM Zone 19N to produce the Northing, Easting, and H_Ortho_m attributes.
All of the attributes here are provided in the 2020015FA_Truro_f1_photolocations.csv and 2020015FA_Truro_f2_photolocations.csv but only the latitude and longitude are put in the image EXIF data with the horizontal datum.
Process_Date: 20200313
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Peter Traykovski
Contact_Organization: Woods Hole Oceanographic Institute
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:
1. ExifTools was used to geotag each photo with the GPSDateStamp, GPSTimeStamp, GPSLatitude, and GPSLongitude with the command: exiftool -csv=directoryname\EXIF_tags.csv ; where the CSV file has the following headings and information (anything in () is format based and is only provided to give more context) -Credit="U.S. Geological Survey " -Contact="WHSC_data_contact@usgs.gov " -Copyright="Public Domain " -ImageDescription="Photographs of Head of the Meadow Beach, Truro, Massachusetts, USA from USGS field survey 2020-015-FA " -Attribution="https://doi.org/10.5066/P9KSG1RQ " -Event="USGS Field Activity 2020-015-FA " -GPSAreaInformation="position post-processed from nearby GPS " -GPSMapDatum="ESPG: 6317 (NAD83(2011)) " -GPSDateStamp="2020:03:06 " -GPSTimeStamp="(HH:MM:SS) " -GPSLatitude="(in decimal degrees) " -GPSLatitudeRef="N " -GPSLongitude="(in decimal degrees)" -GPSLongitudeRef="W " -Artist="Peter Traykovski (WHOI)" -Comment="flight number # of 2 (where # is either 1 or 2) " -OriginalFilename="M#######.JPG (where # combinations are unique) " *.JPG
Keywords were added with the following exiftool -sep ", " -iptc:keywords="Head of the Meadow Beach, Massachusetts, 2020-015-FA, Ricoh, USGS, aerial imagery" *.JPG
To read out the photo information to a csv the command is exiftool -csv -f -filename -GPSDateStamp -GPSTimeStamp -GPSLongitude -GPSLatitude -n -Artist -Contact -Comment -Credit -Copyright -ImageDescription -OriginalFileName -AttributionURL -Event -GPSAreaInformation -GPSMapDatum *.JPG > directoryname/out.csv Fewer tags or additional tags may be taken out with this command from those written above.
2. All the JPG images were renamed with Namexif 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 a field survey ID prefix; a flight number and ID that distinguishes among USGS cameras by make, model, and camera number; the image acquisition date and coordinated universal time (UTC) in ISO8601 format, and a suffix with the original image name. For example, image name '2020015FA_f01r02_20200306T165822Z_M1040356.JPG', 2020015FA is the survey ID, f01 is the flight number, r02 is the internal camera ID, 20200306 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 M1040356.JPG is the original raw photo name appended to the end of the new filename.
Process_Date: 20210301
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jin-Si Over
Contact_Organization: U.S. Geological Survey
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 x2269
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:
2020015FA_Truro_f1_photolocations.csv contains 719 data records and 2020015FA_Truro_f2_photolocations.csv contains 313 data records
Entity_Type_Definition:
The CSV files, within the zip file, contain the post-processed kite navigation GNSS data (approximate position of the camera at the moment of each image capture). The following attributes are treated as if both CSV files in the zip are merged.
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: UTCTime
Attribute_Definition:
Time in HH:MM:SS of each corrected camera position in coordinated universal time (UTC).
Attribute_Definition_Source: Processor defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 16:58:31
Range_Domain_Maximum: 18:59:39
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: 42.05026576
Range_Domain_Maximum: 42.05311101
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)).
Attribute_Definition_Source: None
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -70.07551904
Range_Domain_Maximum: -70.07913481
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: H_Ell_m
Attribute_Definition:
Post-processed height in meters of kite GNSS antenna position based on time of each image capture based on the reference ellipsoid.
Attribute_Definition_Source: None
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -8.485
Range_Domain_Maximum: 27.118
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: 4655917.663
Range_Domain_Maximum: 4656235.569
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: 410701.803
Range_Domain_Maximum: 410999.635
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: H_Ortho_m
Attribute_Definition:
Post-processed interpolated Z-coordinate of kite GNSS antenna position based on time of each image using NAVD88 correction with Geoid 12B.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 18.9684
Range_Domain_Maximum: 54.6720
Attribute_Units_of_Measure: meters
Overview_Description:
Entity_and_Attribute_Overview:
The images are also divided into two groups based on the flight number. The zip file 2020015FA_Truro_f1.zip contains 719 images from flight 1 and 2020015FA_Truro_f2.zip contains 313 images from flight 2. The attributes Latitude, Longitude, and UTCTime are included in the image headers as GPSLatitude, GPSLongitude, and GPSTimeStamp, respectively. A GPSMapDatum header is also included in the images that specifies the latitude and longitude are in NAD83(2011).
Entity_and_Attribute_Detail_Citation: USGS Field Activity 2020-015-FA
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jin-Si Over
Contact_Organization: U.S. Geological Survey
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 x2269
Contact_Electronic_Mail_Address: jover@usgs.gov
Resource_Description:
The Windows 10 zip file 2020015FA_Truro_imagery.zip has the following files: the 2020015FA_Truro_f1.zip contains 719 JPG images, the 2020015FA_Truro_f2.zip contains 313 JPG images (where f# indicates the flight number), the kite PPK navigation files 2020015FA_Truro_f1_photolocations.csv and 2020015FA_Truro_f2_photolocations.csv, the photographs 2020015FA_Truro_CameraGNSS_browse.JPG and 2020015FA_Truro_KiteCameraAttachment_browse.JPG.
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: JPG
Format_Version_Number: 1.0.0
Format_Specification: JPG
Format_Information_Content:
The 2020015FA_Truro_imagery.zip file contains two zip files with JPG image files from Head of the Meadow Beach, Truro MA and two JPGs showing the camera and GNSS setup.
File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip
Transfer_Size: 5544.65
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Access_Instructions:
The first link in the list above is to the field data page and the second 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 2020015FA_Truro_imagery.zip contains two CSV files with location data for the imagery.
File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip
Transfer_Size: 0.114
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Access_Instructions:
The first link in the list above is to the field data page and the second link is to the publication landing page.
Fees: none
Technical_Prerequisites:
Use of these files requires software capable of opening JPG images and, if desired, capable or reading the associated EXIF information. Additionally, the location information is provided in CSV files for the user to utilize with appropriate software.
Metadata_Reference_Information:
Metadata_Date: 20210318
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jin-Si Over
Contact_Organization: U.S. Geological Survey
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 x2269
Contact_Electronic_Mail_Address: jover@usgs.gov
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

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