Jin-Si R. Over Christopher R. Sherwood Peter A. Traykovski Sandra M. Brosnahan Noa R. Randall Alex J. Olson 20220607 1.0 JPEG and comma-delimited text data release DOI:10.5066/P9DPZZG2 Woods Hole Coastal and Marine Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Hazards and Resources Program https://doi.org/10.5066/P9DPZZG2 https://www.sciencebase.gov/catalog/item/623dce3cd34e915b67d65d28 Jin-Si R. Over Christopher R. Sherwood Peter A. Traykovski Sandra M. Brosnahan Alex J. Olson Noa R. Randall 2022 1.0 raster digital files, tabular digital files, remote-sensing image data release DOI:10.5066/P9DPZZG2 Reston, VA U.S. Geological Survey Over, J.R., Sherwood, C.R., Traykovski, P.A., Olson, A.J., Randall, N.R., and Brosnahan, S.M., 2022, DUNEX topographic, bathymetric, and supporting GPS data collected in Pea Island National Wildlife Refuge, North Carolina 2020-2021: U.S Geological Survey data release, https://doi.org/10.5066/P9DPZZG2 https://www.sciencebase.gov/catalog/item/623dca6cd34e915b67d65110 The data in this part of the release are images of the beach for use in structure from motion that were taken with a camera attached to a helium filled balloon-kite (Helikite). During September and October 2021, USGS and Woods Hole Oceanographic Institute (WHOI) scientists conducted multiple field surveys to collect an elevation time series at the USGS DUring Nearshore Event eXperiment (DUNEX) site on Pea Island National Wildlife Refuge, NC. Agisoft Metashape (v. 1.8.1) was used to create orthomosaics and digital surface models with the collected imagery. DUNEX is a multi-agency, academic, and non-governmental organization collaborative community experiment designed to study nearshore coastal processes during storm events. USGS participation in DUNEX will contribute new measurements and models that will increase our understanding of storm impacts to coastal environments, including hazards to humans and infrastructure and changes in landscape and natural habitats. Images are used in structure from motion to produce the derivative orthomosaics and digital surface models used to characterize the beach at Pea Island. Image locations can be used in photogrammetry software to assist with alignment. For more information about the WHCMSC Field Activity, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2021-029-FA. Information about the DUNEX project is available at https://usgs.gov/dunex2021. Bounding coordinates are based on image positions calculated in Metashape and may not reflect full extent of final product, and each survey did not cover the same extent. 20210907 20210908 20210912 20210919 20210925 20210926 20211003 20211012 20211019 ground condition; multiple survey days. Complete Not planned -75.48144554 -75.47881170 35.68031925 35.67433487 None U.S. Geological Survey USGS Coastal and Marine Hazards and Resources Program CMHRP Woods Hole Coastal and Marine Science Center WHCMSC shoreline 3-band imagery shoreline photographs JPG low-altitude aerial imagery aerial imagery UAS Helikite DUNEX geotagged photos Marine Realms Information Bank (MRIB) keywords aerial and satellite photography USGS Thesaurus remote sensing aerial photography image collections ISO 19115 Topic Category geoscientificInformation oceans location USGS Metadata Identifier USGS:623dce3cd34e915b67d65d28 Common geographic areas United States Pea Island Dare North Carolina None 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. Jin-Si R. Over U.S. Geological Survey, Northeast Region: Woods Hole Coastal and Marine Science Center mailing and physical address

U.S. Geological Survey

Woods Hole MA 02543-1598 508-548-8700 x2269 jover@usgs.gov https://www.sciencebase.gov/catalog/file/get/623dce3cd34e915b67d65d28?name=PINWR_Imagery_browse.jpg&allowOpen=true Example image taken of the field site from the camera attached to the Helikite. JPEG Two cameras were used with the Helikite; the Ricoh GR II acquired 16 megapixel photos with file sizes generally between 4 and 6 MB on disc and the PT SONY acquired 24 megapixel photos with file sizes generally between 8 and 12 MB, dependent on image complexity. Helikite altitude was 20-40 m to map the dune and beach system at the Pea Island DUNEX site. Photographs were captured every second, but as this created more images than are needed to create the structure from motion product, thus only every other image is provided for each flight. Images taken while the Helikite was launched, recovered, or held stationary for an extended period of time were removed. Images were not removed for blurriness and some photos included may not be appropriate for further use. Not all photos provided have location information as not all images successfully aligned, thus the number of images provided and number of data records for photo locations does not match. Users are advised to read the rest of the metadata record carefully for additional details. Though the images do not represent spatial data, the horizontal position of the camera as derived from Metashape after alignment and optimization is provided as a CSV. The conservative estimated horizontal accuracy is 1 m. Though the images do not represent spatial data, the vertical position of the camera as derived from Metashape after alignment and optimization is provided as a CSV. The conservative estimated vertical accuracy is 1 m. These JPEG images were collected every second with a camera (either a Ricoh GRII HD or PT SONY) labeled 'aa##', where an 'r' indicates a Ricoh camera and 'pt' indicates the SONY camera, and the following 2 digits normally indicate the camera ID or last digits of the serial number. The camera was then hung from the Helikite so that the camera faces downward. The Helikite was on a 40-50 m string attached to a kitesurfing harness then walked down the beach in a pattern to get overlapping imagery of the entire field site. It is recommended when using the imagery for photogrammetric purposes to also use the ground control points (GCPs) (see larger work citation). 2021 Jin-Si R. Over U.S. Geological Survey, Northeast Region: Woods Hole Coastal and Marine Science Center Geographer mailing and physical address

U.S. Geological Survey

384 Woods Hole Rd.

Woods Hole MA 02543-1598 508-548-8700 x2269 jover@usgs.gov 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. No GNSS navigation data was available with the photos, but relatively accurate (~1 m) estimates of camera locations were calculated in Metashape. These locations are provided for each survey in the file 2021029FA_PINWR_photoLocations.csv and includes Latitude, Longitude, and Ellipsoid height in NAD83(2011) and Easting, Northing, and Orthometric height in UTM18N NAVD88 (m). These can be loaded into photogrammetry software to assist in alignment processing. 2. Keywords were added to each image with the following command in the directory with all the photographs: exiftool -sep ", " -iptc:keywords="DUNEX, PINWR, North Carolina, 2021-029-FA, USGS, aerial imagery" *.JPG 3. Additional EXIF information (image description, artist, contact, credit, and copyright) was added in the directory with all the photos with the command: exiftool -csv=directory\name\EXIF_tags.csv *.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 For more information on tags see https://exiftool.org/TagNames/EXIF.html. 4. All the JPEG images were renamed with Namexif (https://namexif.en.uptodown.com/ 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 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 '2021029FA_f01r02_20210907T165822Z_M1050226.JPG', 2021029FA is the survey ID, f01 is the flight number, r02 is the internal camera ID, 20210907 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 M1050226.JPG is the original raw photo name appended to the end of the new filename. If the camera time was collected in EST, the time in Namexif was shifted +4:00:00 to be in UTC. 2022 Jin-Si R. Over U.S. Geological Survey, Northeast Region: Woods Hole Coastal and Marine Science Center Geographer mailing and physical address

U.S. Geological Survey

384 Woods Hole Rd.

Woods Hole MA 02543-1598 508-548-8700 x2269 jover@usgs.gov provided in CSV 0.000001 0.000001 Decimal degrees North American Datum of 1983 (National Spatial Reference System 2011) GRS_1980 6378137.0 298.257222101 North American Vertical Datum of 1988 0.001 meters Explicit elevation coordinate included with horizontal coordinates 2021029FA_PINWR_photoLocations.csv contains 9788 data records. The CSV file contains the Metashape derived approximate position of the camera at the moment of each image capture. USGS Date Date images were taken, in YYYYMMDD USGS Character string. ImageName File names of individual images, see the Data Quality Information and Process Description for file naming convention. USGS Character string. Latitude Estimated position of each image capture, in decimal degrees (NAD83[2011]). USGS 35.674637 35.680146 decimal degrees Longitude Estimated position of each image capture, in decimal degrees (NAD83(2011)). Negative values represent W. None -75.481273 -75.478963 decimal degrees Ellipsoid_height_NAD83 Estimated vertical position of each image capture based on the NAD83(2011) reference ellipsoid. None -32.497 6.083 meters Northing Estimated position of each image capture, in NAD83(2011)/UTM Zone 18N. USGS 3947967.818 3948579.201 meters Easting Estimated position of each image capture, in NAD83(2011)/UTM Zone 18N. USGS 456448.830 456655.745 meters Orthometric_height_NAVD88 Estimated vertical position of each image capture, using NAVD88 (Geoid 18). USGS 6.349 44.928 meters The attributes are derived from Metashape after 4D alignment and optimization of all imagery and GCPs. Latitude, longitude, and ellipsoid values are in NAD83(2011), easting and northing values are in UTM18N, and Orthometric_height_NAVD88 (altitude) values are in NAVD88 Geoid18. The no-data value is represented by the string NaN. USGS Field Activity 2021-029-FA U.S. Geological Survey - ScienceBase mailing and physical address

Denver Federal Center, Building 810, Mail Stop 302

Denver CO 80225 1-888- 275-8747 sciencebase@usgs.gov Imagery from each survey are provided in individual zip folders with the suffix _imagery_date{MMDD} and the 2021029FA_PINWR_photoLocations.csv contains the combined survey photo location information. The 2021029FA_PINWR_imagery_0907.zip folder contains 736 JPEGs and is 4 GB, 2021029FA_PINWR_imagery_0908.zip folder contains 1056 JPEGs and is 5.6 GB, 2021029FA_PINWR_imagery_0911.zip folder contains 1432 JPEGs and is 7.5 GB, 2021029FA_PINWR_imagery_0919.zip folder contains 1091 JPEGs and is 5.9 GB, 2021029FA_PINWR_imagery_0925.zip folder contains 1148 JPEGs and is 6.1 GB, 2021029FA_PINWR_imagery_0926.zip folder contains 1178 JPEGs and is 6.2 GB, 2021029FA_PINWR_imagery_1003.zip file contains 1228 JPEGs and is 2.8 GB, 2021029FA_PINWR_imagery_1012.zip folder contains 2287 JPEGs and is 11.8 GB, and 2021029FA_PINWR_imagery_1019.zip folder contains 818 JPEGs and is 6.5 GB. 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. JPEG 1.0.0 JPEG The 2021029FA_PINWR_imagery_{MMDD}.zip folders contain JPEGs. Use WinZip, 7zip, Peazip or pkUnzip 60000 https://www.sciencebase.gov/catalog/item/623dce3cd34e915b67d65d28 https://doi.org/10.5066/P9DPZZG2 https://www.sciencebase.gov/catalog/file/get/623dce3cd34e915b67d65d28 The first link in the list above is to the data page with the individual files, the second link is to the publication landing page, and the third link is to directly download all of the imagery data into a zip file - this link does not currently work as the download size is too big, but is included in case the download size increases in the future. comma-delimited text (CSV) Exported from Excel Office 365 16.01 The 2021029FA_PINWR_photolocations.csv file contains location data for the imagery that aligned in Metashape. 1 https://www.sciencebase.gov/catalog/item/623dce3cd34e915b67d65d28 https://doi.org/10.5066/P9DPZZG2 https://www.sciencebase.gov/catalog/file/get/623dce3cd34e915b67d65d28 The first link in the list above is to the data page with the individual files, the second link is to the publication landing page, and the third link is to directly download all of the imagery data into a zip file - this link does not currently work as the download size is too big, but is included in case the download size increases in the future. none 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. 20220607 Jin-Si R. Over U.S. Geological Survey, Northeast Region: Woods Hole Coastal and Marine Science Center Geographer mailing and physical

U.S. Geological Survey

384 Woods Hole Rd.

Woods Hole MA 02543-1598 508-548-8700 x2269 whsc_data_contact@usgs.gov The metadata contact email address is a generic address in the event the person is no longer with USGS. Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998