U.S. Geological Survey 2016 1.0 vector and raster digital data data release DOI:10.5066/F7P55KK3 Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts U.S. Geological Survey, Coastal and Marine Geology Program https://doi.org/10.5066/F7P55KK3 https://cmgds.marine.usgs.gov/data/field-activity-data/2015-001-FA/data/imagery/2015-001-FA_photos.zip Edward M. Sweeney Elizabeth A. Pendleton Seth D. Ackerman Brian D. Andrews Wayne E. Baldwin William W. Danforth David S. Foster E. Robert Thieler Laura L. Brothers 2016 3.0 data release DOI:10.5066/F7P55KK3 Reston, VA U.S. Geological Survey https://doi.org/10.5066/F7P55KK3 The Delmarva Peninsula is a 220-kilometer-long headland, spit, and barrier island complex that was significantly affected by Hurricane Sandy in the fall of 2012. The U.S. Geological Survey conducted cruises during the summers of 2014 and 2015 to map the inner continental shelf of the Delmarva Peninsula using geophysical and sampling techniques to define the geologic framework that governs coastal system evolution at storm-event and longer timescales. Geophysical data collected during the cruises include swath bathymetric, sidescan sonar, chirp and boomer seismic reflection profiles, grab sample and bottom photograph data. More information about the USGS survey conducted as part of the Hurricane Sandy Response-- Geologic Framework and Coastal Vulnerability Study can be found at the project website or on the WHCMSC Field Activity Web pages: https://woodshole.er.usgs.gov/project-pages/delmarva/, https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-002-FA and https://cmgds.marine.usgs.gov/fan_info.php?fan=2015-001-FA. Data collected during the 2014 survey can be obtained here: https://doi.org/10.5066/F7MW2F60 This dataset is used to display the images and locations of bottom photographs acquired with a GoPro modified, mid-sized SEABed OBservation and Sampling System (SEABOSS Mark II configuration) collected during a 2015 USGS cruise along the Delmarva Peninsula. The information contained within the bottom photographs is needed to validate geophysical data. This dataset contains seabed images from each bottom photograph station, as well as location in Geographic coordinates (WGS84), time of day and date of collection. Physical sediment samples, which provide additional information about the seabed, were also collected at photograph stations and analyzed in the sediment laboratory at the USGS Woods Hole Coastal and Marine Science Center (see shapefile 2015-001-FA_samples.shp available from the larger work citation). 20150714 20150716 ground condition; sample and photo data were collected after geophysical data collection was complete. Complete None planned. -75.874755 -75.223799 37.753817 37.011527 USGS Metadata Identifier USGS:af87a030-64aa-4530-9aa9-6d0bb6b9f215 None U.S. Geological Survey USGS Woods Hole Coastal and Marine Science Center WHCMSC Coastal and Marine Geology Program CMGP seafloor images Esri shapefile field activity number 2015-001-FA M/V Scarlett Isabella bottom photographs GoPro HERO 3+ GoPro HERO 2 SEABOSS sampler Van Veen grab sampler stations ground-truth seabed photographs photos JPEG seafoor sea floor field activity number 2015-001-FA ISO 19115 Topic Category oceans geoscientificInformation location environment USGS Thesaurus image collections underwater photography sea-floor characteristics navigational data geospatial datasets None Atlantic Ocean Delmarva Peninsula Delaware Maryland Virginia Assateague Island Assateague Island National Seashore Chincoteague Island Chincoteague National Wildlife Refuge Chincoteague Inlet Chincoteague Bay Wallops Island Parramore Island Cobb Island Wreck Island Ship Shoal Island Myrtle Island Smith Island Fisherman Island Hog Island None sea floor seafloor seabed none Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset. Edward M. Sweeney U.S. Geological Survey Physical Scientist mailing and physical address

384 Woods Hole Road

Woods Hole Massachusetts 02543-1598 USA 508-548-8700 x2256 508-457-2310 emsweeney@usgs.gov https://cmgds.marine.usgs.gov/data/field-activity-data/2015-001-FA/data/imagery/2015-001-FA_photos_browse.jpg Woods Hole Coastal and Marine Science Center 2015 bottom photograph locations along the Delmarva Peninsula. JPEG Elizabeth A. Pendleton Seth D. Ackerman Wayne E. Baldwin William W. Danforth David S. Foster E. Robert Thieler Laura L. Brothers 2015 3.0 webpage data release DOI:10.5066/F7MW2F60 Reston, VA U.S. Geological Survey https://doi.org/10.5066/F7MW2F60 D. Blackwood K. Parolski 2001 1.0 Sea Technology v. 42, no.2, p. 29-43 Arlington, VA Compass Publications, Inc. L.J. Poppe K.Y. McMullen S.J. Williams V.F. Paskevich 2014 3.0 Open-File Report 2005-1001 Reston, VA U.S. Geological Survey https://pubs.usgs.gov/of/2005/1001/ The GoPro Hero 2 HD camera used on the SEABOSS Mark II acquires photos at 11 Megapixels in JPEG quality of 98 percent, so file sizes are generally between 3 and 7 MB on disc, depending on seabed complexity. The GoPro Hero 3+ black camera used on the SEABOSS Mark II acquires photos at 12 Megapixels in JPEG quality of 80%, so file sizes are generally between 1 and 3 MB on disc. Image quality and photo interval was reduced for Hero 3+ to allow space on camera card for bottom video. All bottom photographs were acquired with the same 2 cameras; a GoPro Hero 2 HD (Hero 2) and a GoPro Hero 3+ black (Hero 3). Cameras were mounted on a mid-sized SEABOSS with a modified VanVeen Sampler. Gaps in sequential photo numbers exist because only the best photo per station was selected for publication (See source contribution for more information on camera settings and photograph timing). Some stations did not obtain a quality photo due to frame movement, or an unsettled (muddy) seabed. Of 125 sample stations, there are Hero 2 photos for 121 stations, and Hero 3 photos at 114 stations. The best photograph from each camera is included at each station. Not every station has a photograph from both cameras. There is no bottom photograph collected for sample S_006. There are 235 bottom photos total: 121 photos from the Hero 2 and 114 photos from the Hero 3. Differential Global Positioning System (DGPS) and Wide Area Augmentation System (WAAS) enable GPS navigation data were acquired with a Hemisphere receiver and recorded with HYPACK software versions 13.0.9.21 and 15.0.9.71 (www.hypack.com). The recorded position of each bottom photograph is the position of the GPS antenna on the survey vessel acquisition van, not the SEABOSS sampler. The SEABOSS was deployed approximately 5 meters astern of the GPS antenna off the ship's A-fame on the stern of the ship. No layback or offset was applied to the recorded position. In addition to the plus or minus 5 m offset the SEABOSS may additionally drift away from the survey vessel when deployed to the seafloor. Based on the various sources of horizontal error, a conservative estimate of the horizontal accuracy of the bottom photograph location is 20-30 m. U.S. Geological Survey 2016 disc 20150714 20150716 ground condition; sample and photo data were collected after geophysical data collection was complete. raw hypack nav and bottom photographs Bottom photographs and sediment samples were acquired to validate the seafloor interpretations made from geophysical data. Often sediment samplers are unable to recover large-diameter particles, so photographs can document the seafloor character in areas where samples may not be obtained. Two GoPro cameras were mounted to a USGS SEABOSS (Mark II configuration) with a modified VanVeen sampler frame. Approximate SEABOSS dimensions are 115 X 115 X 117 cm. The Van Veen sampler is housed at the bottom and center of the frame at approximately 30 X 32 X 16 cm with a 1/10 sq. meter sample capacity. Two red lasers were mounted on the frame above the sampler, 20 cm apart for scale in bottom photographs. A Keldan (Advanced Lighting Technology) light was mounted at the top of the frame and aimed downward to illuminate the seabed for photographs. Two GoPro cameras were mounted on the frame and set to capture photographs at 2 or 5 second intervals. The GoPro Hero 2 was mounted approximately 70 cm from the bottom of the SEABOSS frame and captured photographs at 2-second interval. The GoPro Hero 3+ was mounted approximately 20 cm from the bottom of the SEABOSS frame and captured video and photographs at 5-second interval. Because the frame was stationary on the bottom of the seabed only one photograph for each camera was chosen to represent the seafloor at each station location. Photographs collected in the water column, on the ship's deck, and duplicate photos of the seafloor were deleted. The Hero 2 field of view includes the Hero 3 GoPro (furthest to the right) and 2 instruments that were attached to the SEABOSS for additional data. The instrument to the left is a Suunto SK-7 dive compass, which shows the orientation of the SEABOSS. The digital readout to the right of the dive compass is the Uwatec dive timer, which shows 4 readouts: upper left is depth in meters, lower left is max depth in meters, upper right is dive time in minutes and lower right is temperature in Celsius (during ascent, this changes to ascent rate in meters per minute and shows an arrow when it senses the rate is too fast). DGPS and WAAS navigation for the Hemisphere receiver (located on the acquisition van) were logged in HYPACK software (versions 13.0.9.21 and 15.0.9.71). A python script called parseHYPACK_gui_sort_all.py (WHCMSC script) was used to search all HYPACK files from the sampling Julian days (JD 195-197) and pull out the GPGGA (nav) string (Device 0) and time and write out a parsed navigation file for all the sample and photograph stations. 20151020 U.S. Geological Survey Edward M. Sweeney Physical Scientist mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 508-548-8700 x2256 508-457-2310 emsweeney@usgs.gov Time of bottom photograph was extracted from the "Date Picture Taken" attribute in the EXchangeable Image File format (EXIF) header of the quality JPEG bottom photograph using a python tool called: JPEG_exifextract_gui_sort.py (WHCMSC script). A separate picture time file was created for each camera, Hero 2 and Hero 3. 20151020 U.S. Geological Survey Edward M. Sweeney Physical Scientist mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 508-548-8700 x2256 508-457-2310 emsweeney@usgs.gov Adjustments were made manually to the time picture taken file to account for time offsets between the time recorded in the JPEG EXIF "Date Picture Taken" attribute and the GPS time as verified by comparing calibration photos taken on the deck of the ship. Hero 2 was 31 minutes and 10 seconds behind GPS time, and the Hero 3+ was 1 second ahead of GPS time. To account for the time difference, an additional field was added to the photo 'time picture taken' file generated in the previous step. The new field of the time difference was populated using Microsoft Excel (version 2010) by auto-filling a linear series. The time difference is used for geolocating the photos in the subsequent processing step. 20151020 U.S. Geological Survey Edward M. Sweeney Physical Scientist mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 508-548-8700 x2256 508-457-2310 emsweeney@usgs.gov An Esri shapefile was created by using a python script (photo_locs_gui_5exif.py, WHCMSC script) to join the bottom photo with the parsed HYPACK navigation file by matching the time offset field for Hero 2 photos (31 minutes, 10 seconds) and Hero 3+ photos (1 second) with the navigation file. 20151020 U.S. Geological Survey Edward M. Sweeney Physical Scientist mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 508-548-8700 x2256 508-457-2310 emsweeney@usgs.gov Once the shapefile was created that joined the latitude and longitude from the HYPACK navigation with a photo from each station, some fields were deleted that were no longer needed including the camera time and time offset fields for Hero 2 and Hero 3. Several attributes were added in Esri ArcGIS (version 10.3.1) using the Spatial Join Tool. This tool was run with the sediment sample shapefile (containing sample analysis information) to assign a station name for the accompanying sediment sample (FIELD_NO) and also the sediment classification (Folk scheme) of the accompanying sediment sample (CLASSIFICA). Bottom photo and sediment sample locations are not exactly coincident as the ship drifted during the collection of bottom photos. 20160316 U.S. Geological Survey Edward M. Sweeney Physical Scientist mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 508-548-8700 x2256 508-457-2310 emsweeney@usgs.gov XTools Pro (version 12.0) for ArcGIS (version 10.3.1) was used to add new fields (TABLE OPERATIONS - TABLE RESTRUCTURE) to the point shapefile including an attribute for the survey ID (CRUISE_ID), device used to collect the photos and samples (DEVICE_ID), the survey vessel (VEHICLE_ID), and the Camera (CAMERA: either Hero 2 or Hero 3). Finally, the two separate camera shapefiles (Hero 2 and Hero 3) were merged into one shapefile using the ArcToolbox (version 10.3) MERGE tool (DATA MANAGEMENT TOOLS – GENERAL - MERGE). 20160316 U.S. Geological Survey Edward M. Sweeney Physical Scientist mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543-1598 508-548-8700 x2256 508-457-2310 emsweeney@usgs.gov The photo locations were exported from ArcMap (version 10.3.1) using XTools Pro (version 12.0) as a comma-delimited text file. The attributes chosen for export were: GPSTIME, PICNAME, LONG, LAT. Another column of information was added - yrdate - which had the year and date the photograph was taken in the format YYYYMMDD. This information was based on the Julian day in the shapefile. A Python version 2.7.3 script (writeexif_2_readfile_11_24_15.py, WHCMSC script) was then run that incorporated this information, along with additional information, into the appropriate locations in the EXIF header of each full-resolution JPEG image. The PYTHON script uses ExifTool (version 9.4.6.0) to write the information to the image headers of the full-resolution images. The following tags were populated in the JPEG image headers. Information is duplicated in some tags. This was done because different software packages access different tags. GPS tags: The values populated are unique for each image and based on the information exported from the photo locations shapefile. >GPSLatitudeRef >GPSLatitude >GPSLongitudeRef >GPSLongitude >GPSTimeStamp >GSPDateStamp > JPEG tags: The tag is listed along with the information used to populate it - which is the same for every image taken with a particular camera. The following information is based on the GoPro Hero 2 camera. > comment: Photo from down-looking GoPro HERO 2 camera on the USGS SEABOSS deployed from the M/V Scarlett Isabella during survey 2015-001-FA (http://cmgds.marine.usgs.gov/fan_info.php?fan=2015-001-FA). Released as part of publication DOI:10.5066/F7P55KK3. > EXIF tags: The tag is listed along with the information used to populate it - which is the same for every image. > ImageDescription: Photograph of the sea floor along the Delmarva Peninsula, MD and VA from survey 2015-001-FA >Artist: USGS >Copyright: Public Domain - please credit U.S. Geological Survey > IPTC tags: The tag is listed along with the information used to populate it - which is the same for every image. >Credit: U.S. Geological Survey >Contact: emsweeney@usgs.gov >Keywords: Bottom photo, Delmarva Peninsula, 2015-001-FA, SEABOSS, sea floor, USGS, GoPro HERO 2 >CopyrightNotice: Public Domain - please credit U.S. Geological Survey >Caption-Abstract: Photograph of the sea floor along the Delmarva Peninsula, MD and VA from survey 2015-001-FA > XMP tags: The tag is listed along with the information used to populate it - which is the same for every image. >Caption: Photograph of the sea floor along the Delmarva Peninsula, MD and VA from survey 2015-001-FA > To extract the information from the image headers using ExifTool, the following command can be used (tested with ExifTool version 9.4.6.0): > exiftool.exe -csv -f -filename -GPSTimeStamp -GPSLongitude -GPSLatitude -n -Artist -Credit -comment -keywords -Caption -Copyright -CopyrightNotice -Caption-Abstract -ImageDescription photos/*.jpg > out.csv > The -csv flag writes the information out in a comma-delimited format. The -n option formats the latitude and longitude as signed decimal degrees. > The following tags are modified for the Hero 3 files. > comment=Photo from down-looking GoPro HERO 3+ camera on the USGS SEABOSS deployed from the M/V Scarlett Isabella during survey 2015-001-FA (http://cmgds.marine.usgs.gov/fan_info.php?fan=2015-001-FA). Released as part of publication DOI:10.5066/F7P55KK3. > keywords=Bottom photo, Delmarva Peninsula, 2015-001-FA, SEABOSS, sea floor, USGS, GoPro HERO 3+ 20160316 U.S. Geological Survey Edward M. Sweeney Physical Scientist mailing and physical address

384 Woods Hole Rd.

Woods Hole MA 02543 508-548-8700 x2256 508-457-2310 emsweeney@usgs.gov The online links to the data were updated to reflect the new server hosting the data. Additionally, other small edits could be made to the metadata, such as modifying http to https where appropriate. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. 20170419 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov USGS Thesaurus keywords added to the keyword section. 20180720 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Added keywords section with USGS persistent identifier as theme keyword. 20200908 U.S. Geological Survey VeeAnn A. Cross Marine Geologist Mailing and Physical

384 Woods Hole Road

Woods Hole MA 02543-1598 508-548-8700 x2251 508-457-2310 vatnipp@usgs.gov Vector Entity point 235 0.000001 0.000001 Decimal degrees D_WGS_1984 WGS_1984 6378137.000000 298.257224 2015-001-FA_photos Bottom photographs and locations U.S. Geological Survey FID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. Shape Feature geometry. Esri Coordinates defining the features. LONG Longitude in Geographic Coordinates, WGS 84. U.S. Geological Survey -75.874755 -75.223799 decimal degrees 0.00001 LAT Latitude in Geographic Coordinates, WGS 84. U.S. Geological Survey 37.011527 37.753817 decimal degrees 0.00001 JD Julian day; Julian day is the integer number representing the interval of time in days since January 1 of the year (2015 for these data). U.S. Geological Survey 195 197 days 1 YEAR Year that the bottom photograph was collected (2015 for these data). U.S. Geological Survey 2015 2015 years 1 DATE Date that the bottom photograph was collected in the format: YYYYMMDD. U.S. Geological Survey 20150714 20150716 date 1 GPSTIME UTC time of bottom photograph collection from GPS navigation file in format HH:MM:SS. U.S. Geological Survey UTC time of bottom photograph collection. PICNAME Name of bottom photograph used to uniquely identify between stations, cameras, and photographs: i.e. dl1_H2_14Jul_2100_G0024745, where dl1 refers to download number of when photos were downloaded off the camera, H2 refers to camera type (Hero 2), 14Jul refers to the date of the download, 2100 refers to the time of the download, and G0024745 refers to the sequential image number assigned to the image by the GoPro camera. U.S. Geological Survey String used to distinguish photographs. CAMERA GoPro camera used to collect bottom photograph. U.S. Geological Survey String used to distinguish between 2 GoPro cameras mounted on the SEABOSS Mark II. CAMR_TIME Camera time of bottom photograph collection from GoPro camera in format HH:MM:SS. U.S. Geological Survey Camera time of bottom photograph collection. TIMEOFFSET Offset of camera time from GPS navigation UTC time in the format HH:MM:SS. U.S. Geological Survey Offset time of bottom photograph collection. FIELD_NO Name of station ID that corresponds to photograph and sample locations: S stands for sample, followed by the number of the sample collected. U.S. Geological Survey Character set CLASSIFICA Clastic sediment classification field (CLASSIFICA: based on Folk system) joined from the sample database to aide interpretations. U.S. Geological Survey CLAYEY SAND Sediment whose main phase is sand, but with significant clay. U.S. Geological Survey GRAVEL Sediment whose main phase is greater than 2 mm. Modified from USGS East Coast Sediment Texture Database data dictionary GRAVELLY SEDIMENT Sediment whose main phase is greater than 2 mm, but with significant other sediment. Gravel greater than 10 percent. Modified from USGS East Coast Sediment Texture Database data dictionary SAND Sediment whose main phase is less than 2 mm, but greater than or equal to 0.0625 mm. Modified from USGS East Coast Sediment Texture Database data dictionary SILTY SAND Sediment whose main phase is sand, but with significant silt. Modified from USGS East Coast Sediment Texture Database data dictionary CRUISE_ID WHCMSC field activity identifier (e.g. "2015-001-FA" where 2015 is the survey year, 001 is survey number of that year, and FA is Field Activity). U.S. Geological Survey String used to distinguish cruises by year and ID number. DEVICE_ID Device used to collect the sample and bottom photograph. U.S. Geological Survey String used to identify the SEABOSS configuration used during the survey. VEHICLE_ID Vehicle (ship) used to collect data during survey 2015-001-FA. U.S. Geological Survey String used to identify the survey vessel. The JPEG images can be hyperlinked to their shapefile location in ArcGIS. U.S. Geological Survey Edward M. Sweeney U.S. Geological Survey Physical Scientist mailing and physical address

384 Woods Hole Road

Woods Hole Massachusetts 02543 USA 508-548-8700 x2256 508-457-2310 emsweeney@usgs.gov USGS data release 2015-001-FA contains bottom photograph locations and images (235 total images) of the seafloor collected from the Delmarva Peninsula area (2015-001-FA_photos.zip). The zip file contains the following shapefile: 2015-001-FA_photos.shp and seafloor photographs for each GoPro camera (Hero 2 and Hero 3+). A browse graphic of photo locations (2015-001-FA_photos_browse.jpg) and Federal Geographic Data Committee (FGDC) Content Standards for Digital Geospatial Metadata (CSDGM) metadata files (2015-001-FA_photos.xml) in four standard formats are also included in the zip file. 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 USGS 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. Shapefile ArcGIS 10.3.1 Shapefile The WinZip (version 14.0) file contains bottom photograph locations and images of the seafloor collected by the U.S. Geological Survey - Woods Hole Coastal and Marine Science Center along the Delmarva Peninsula, MD and VA and the associated metadata. Use WinZip, 7zip, Peazip or pkUnzip 880 https://cmgds.marine.usgs.gov/data/field-activity-data/2015-001-FA/data/imagery/2015-001-FA_photos.zip https://doi.org/10.5066/F7P55KK3 https://cmgds.marine.usgs.gov/data/field-activity-data/2015-001-FA/ Data can be downloaded via the Internet JPEG GoPro Hero 2 or Hero 3+ Joint Photographic Experts Group (JPEG) The WinZip (version 14.0) file contains bottom photograph locations and images of the seafloor collected by the U.S. Geological Survey - Woods Hole Coastal and Marine Science Center along the Delmarva Peninsula, MD and VA and the associated metadata. Use WinZip, 7zip, Peazip or pkUnzip 880 https://cmgds.marine.usgs.gov/data/field-activity-data/2015-001-FA/data/imagery/2015-001-FA_photos.zip https://doi.org/10.5066/F7P55KK3 https://cmgds.marine.usgs.gov/data/field-activity-data/2015-001-FA/ Data can be downloaded via the Internet none This zip file contains data available in point shapefile format. The user must have software capable of reading shapefile format to use these data. An image viewer can be used to see the JPEG images. 20211119 Edward M. Sweeney U.S. Geological Survey Physical Scientist mailing and physical address

384 Woods Hole Road

Woods Hole Massachusetts 02543 USA 508-548-8700 x2256 508-457-2310 whsc_data_contact@usgs.gov The metadata contact email address is a generic address in the event the metadata contact is no longer with the USGS or the email is otherwise invalid. FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time