Karen L.M. Morgan 20190522 Raster and tabular digital data U.S. Geological Survey Data Release doi:10.5066/P9G9Q4EU St. Petersburg, FL U.S. Geological Survey https://doi.org/10.5066/P9G9Q4EU The U.S. Geological Survey (USGS) conducts baseline and storm-response photography missions to document and understand the changes in the vulnerability of the Nation's coasts to extreme storms. On September 26-27, 2006, the USGS conducted an oblique aerial photographic survey from Dauphin Island, Alabama, to Breton Island, Louisiana, aboard a U.S. Coast Guard HH60 Helicopter aircraft at an altitude of 500 feet (ft) and approximately 1,200 ft offshore. This mission was conducted to collect data for assessing incremental changes in the beach and nearshore area since the last survey, which was flown in June 2006 (https://cmgds.marine.usgs.gov/fan_info.php?fan=06ACH02) and the data can be used to assess future coastal change. The photographs provided are Joint Photographic Experts Group (JPEG) images. The photograph locations are an estimate of the aircraft's position and do not indicate the location of the features in the images. These photographs document the configuration of the barrier islands and other coastal features at the time of the survey. ExifTool (version 4.0) was used to add the following to the header of each photograph: time of collection, GPS latitude, GPS longitude, keywords, credit, artist (photographer), caption, copyright, and contact information. Photographs can be opened with any JPEG-compatible image viewer. All image times are recorded in Coordinated Universal Time (UTC). To provide access to digital photographs taken as part of the September 26-27, 2006, baseline oblique aerial survey collected along the coast from Dauphin Island, Alabama, to Breton Island, Louisiana, and to provide access to attribute data that documents the time and location where each photograph was taken. For a summary of field activity 06ACH03 please see https://cmgds.marine.usgs.gov/fan_info.php?fan=06ACH03. Bounding coordinates for the oblique aerial survey are derived from the overall flight path found in the GPS data. Ancillary files included in this publication are: 06ACH03-LocationMaps.zip, 06ACH03-ProcessedNav.zip, 06ACH03-SupplementalFiles.zip, and 06ACH03-RawGPSNav.zip; in addition to the digital oblique aerial image zip files. 20060926 195815 20060927 204823 ground condition Complete as needed -89.213550 -88.068858 30.740423 29.459243 USGS Metadata Identifier USGS:41803947-e4a3-4856-b8ad-d24137a98595 None U.S. Geological Survey National Assessment for Coastal Change Hazards photographs coastline barrier islands beach erosion coastal aerial photography baseline survey oblique aerial survey beach dune ISO 19115 Topic Category environment imageryBaseMapsEarthCover structure oceans USGS Thesaurus marine geology geomorphology image collections photography erosion coastal processes Geographic Names Information System (GNIS) Chandeleur Islands Louisiana Mississippi Alabama Dauphin Island Petit Bois Island Horn Island Ship Island Breton Island Chandeleur Islands None 2006 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. Karen L.M. Morgan USGS Geologist Physical and Mailing

600 4th Street South

St. Petersburg FL 33701 USA (727) 502-8000 kmorgan@usgs.gov https://coastal.er.usgs.gov/data-release/doi-P9G9Q4EU/data/06ACH03-LocationMaps.zip (06ACH03-Survey-Map.jpg) Map of survey area during USGS field activity 06ACH03. JPEG https://coastal.er.usgs.gov/data-release/doi-P9G9Q4EU/data/06ACH03-LocationMaps.zip Maps showing the extent of each area and 5-minute segment can be found in the 06ACH03-LocationMaps.zip file. The maps in this survey are: 06ACH03-Map-Area01.jpg, Area 1, Dauphin Island, Alabama; 06ACH03-Map-Area02.jpg, Area 2, the P9G9Q4EUChandeleur Islands, Louisiana, and Cat Island, Mississippi; 06ACH03-Map-Area03.jpg, Area 3 from Dauphin Island, Alabama, to Ship Island, Mississippi; and 06ACH03-Map-Area04.jpg, Area 4 from Chandeleur Islands, Louisiana, to Breton Island, Louisiana, and inset map for the North Benchmark (06ACH03-Map-Inset01_NorthBenchmark.jpg) in Area 2. The flight path, divided into 5-minute segments, is represented by the alternating purple and yellow lines. JPEG Funding and support for this study were provided by the USGS Coastal and Marine Geology Program (CMGP). The authors wishes to thank Lt. John Mixon (pilot), Lt. Chris Conley (Co-pilot), and AMT3 Petty Officer Chris Walker (Flight Mechanic) of the U.S. Coast Guard for their assistance with data collection. This report benefited from the comments and review of Julie Bernier with the USGS St. Petersburg Coastal and Marine Science Center (SPCMSC), St. Petersburg, FL. Karen L.M. Morgan 2019 U.S. Geological Survey Data Release https://doi.org/10.5066/P9DQZQCX St. Petersburg, FL U.S. Geological Survey https://https://doi.org/10.5066/P9DQZQCX/ Best attempts were made to set the camera to UTC time on the GPS receivers at the beginning of each flight. The clock of the Compix Titler unit was also set to UTC at the same time. Human error during transcription of geographic position and time from the video is possible; however, no obvious errors were observed. Latitude, longitude, and time were collected at an interval of approximately once per second. Note: Latitude and longitude positions in this data release refer to the position of the aircraft, not the position of the landmarks photographed. Refer to the Process Steps below for more detail. Data presented here include the digitally collected photographs in JPEG format with the Exchangeable Image File (EXIF) header embedded with the individual photograph's location along the flight path of the baseline coastal oblique aerial photographic survey of the coast, taken from Dauphin Island, Alabama, to Breton Island, Louisiana. This mission was flown on September 26-27, 2006, aboard a U.S. Coast Guard HH60 Helicopter aircraft, tail number HH6031. Crew members of the USGS in St. Petersburg, FL, included Karen L.M. Morgan, M. Dennis Krohn, and Phil Thompson; and Lt. John Mixon (pilot), Lt. Chris Conley (Co-pilot), and AMT3 Petty Officer Chris Walker (Flight Mechanic) of the U.S. Coast Guard. The GPS receiver used to provide navigation to the video titler unit was a Garmin GPS 18 PC, WAAS Enabled, which is accurate to within 15 meters. Still photography was collected along the coast during this survey. Data Collection Interval: 1 Second. Data File Format: Native Fugawi and Text; Number of files created: 2. Computer/Software: Computer: Panasonic Toughbook CF-51. Software: Fugawi Marine ENC, Ver. 4 GPS Navigation Software. The GPS unit was used to record navigation fixes of the aircraft, not the position of the features imaged. This dataset is considered complete for the information presented, as described in the abstract section. Users are advised to read the rest of the metadata record carefully for additional details. An attempt was made to keep the same relative distance between the aircraft and the beach in order to maintain a constant field of view. 15 Garmin GPS 18 PC accuracy is based on manufacturer specifications when available. During post-processing, the camera time was matched to the GPS time/position to determine camera location at the time of image collection. Latitude and longitude positions in this data release refer to the position of the aircraft, not the position of the landmarks photographed. Image Acquisition: Images were taken with a Nikon D1X digital camera and written to the hard drive of a computer. Image size is approximately 6 MP and saved in Nikon Electronic File (NEF) format (not included in this report). Images were saved using the filename format yyyy_mmdd_hhmmssd.jpg (where the "d" signifies digital acquisition using the D1X). The names provide information about the photograph's year, month, day, hour, minute, and second. For example, image 2006_0926_133636d.jpg was taken September 26, 2006, at 13:36:36 UTC. Best attempts were made to set the D1X's internal clock to within 1 second of UTC at the beginning of the flight. Video and still photography were shot out of the rear starboard window of the airplane. The video files are not included in this publication. 20060926 Karen L.M. Morgan USGS Geologist Physical and Mailing

600 4th Street South

St. Petersburg FL 33701 USA 727-502-8000 kmorgan@usgs.gov Image Processing: Images were converted from NEF to JPEG format using Nikon Capture Camera Editor Version 4.4.2. See above Image Acquisition for image naming convention. 20140710 Karen L.M. Morgan USGS Geologist Physical and Mailing

600 4th Street South

St. Petersburg FL 33701 USA 727-502-8000 kmorgan@usgs.gov Navigation processing: Using a custom Practical Extraction and Reporting Language (Perl) script written by Karen Morgan, USGS, GPS data and image files were used to generate CSV file containing a latitude, longitude, and time record for each image. 20140710 Karen L.M. Morgan USGS Geologist Physical and Mailing

600 4th Street South

St. Petersburg FL 33701 USA 727-502-8000 kmorgan@usgs.gov Survey map creation: The survey maps provided in this archive were created with Environmental Systems Research Institute (Esri) ArcGIS 10.3 software and saved as Adobe Illustrator (*.ai) files. Survey maps were edited using Adobe Illustrator CC and exported in JPEG format. 20190305 Karen L.M. Morgan USGS Geologist Physical and Mailing

600 4th Street South

St. Petersburg FL 33701 USA 727-502-8000 kmorgan@usgs.gov The imagery in this release was divided into manageable sized (< 267 MB) zip files for ease of download and review. 20190305 Karen L.M. Morgan USGS Geologist Physical and Mailing

600 4th Street South

St. Petersburg FL 33701 USA 727-502-8000 kmorgan@usgs.gov EXIF headers: Exchangeable Image File (EXIF) and International Press Telecommunications Council (IPTC) headers were populated from the command prompt using ExifTool (http://www.sno.phy.queensu.ca/~phil/exiftool) ExifTool was executed from a directory containing all photographs to be edited and a CSV file with information for each of the photographs. The metadata values for photograph creation include time, GPS latitude, GPS longitude, GPS position (latitude and longitude), keywords, credit, artist (photographer), caption, copyright, and contact were added to each photograph's EXIF header using a Perl script written by K. Morgan. 20140710 Karen L.M. Morgan USGS Geologist Physical and Mailing

600 4th Street South

St. Petersburg FL 33701 USA 727-502-8000 kmorgan@usgs.gov Added keywords section with USGS persistent identifier as theme keyword. 20201013 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 Point Point 1758 0.0197878497 0.0227728255 Decimal Degrees North American Datum of 1983 GRS 1980 6378137.0 298.257222101 06ACH03-Flightpath.csv, 06ACH03-Photolocation.csv The "*Flightpath.csv" file contains the processed GPS information collected during the flight, while the "*Photolocation.csv" file contains a latitude position, longitude position, time, and image name for each image. USGS PHOTO_ID Photograph identification number, using the filename format yyyy_mmdd_hhmmssd.jpg. USGS Oblique Images URL Path to low resolution version of the image. USGS URL path defining the features. ZIPFILENAME Name of zip file containing the high-resolution images. USGS Zip file name. LONGITUDE Longitude of photograph location, in decimal degrees (NAD83). USGS Coordinates defining the position of the aircraft. LATITUDE Latitude of photograph location, in decimal degrees (NAD83). USGS Coordinates defining the position of the aircraft. DATE_FLOWN Date image was captured, in yyyymmdd format. USGS Date mission was flown. TIME_UTC Time photograph was collected, in xxhxxmxxs format. Times were recorded in Coordinated Universal Time (UTC), where "xx" is the number and "h" is hours, "m" is minutes, and "s" is seconds at the time of capture. USGS Time image was captured. GEO_AREA The geographic area of the mission. USGS Geographic area covered in the oblique photographic mission. STATES The states included in the survey area of the mission. USGS States or regions partially covered in the oblique photographic mission. SURVEY USGS mission tracking number; also known as a field activity number. USGS Mission number utilized by the USGS Coastal and Marine Geology program’s data catalog, Compass, to track survey details and associated data. PRE_POST Identifies the flight as being pre-storm (or baseline) or post-storm. USGS Pre Flight was prior to a storm. USGS Post Flight was after a storm. USGS STORM If the flight was conducted due to a storm, the name of the storm is listed. Name of Storm (or Baseline). USGS The storm name is listed, if the flight was conducted pre- or post-storm, otherwise "Baseline" is entered. Navigation files: The flight line navigation file is 06ACH03-Flightpath.csv, the photo locations are in 06ACH03-Photolocations.csv, and both are contained within the 06ACH03-ProcessedNav.zip file. The raw GPS is in 06ACH03-RawGPSNav.txt, which is contained within the 06ACH03-RawGPSNav.zip file. These zip files can be found in the data download table. The files (.csv and .txt) are comma-delimited CSV files and an ASCII formatted text file. Graphic Image Files: The index map (06ACH03-Survey-Map.jpg) is a JPEG image. This map shows the flightpath of the mission during which baseline coastal oblique aerial photographs were collected from Dauphin Island, Alabama, to Breton Island, Louisiana, September 26–27, 2006. It also shows four areas, which show more detail and indicate how the full-size photographs are divided into each area. The area maps can be found in the 06ACH03-LocationMaps.zip file. Navigation files: These files (*.csv) are comma-delimited. The entity and attribute information were generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information. Karen L.M. Morgan USGS Geologist Physical and Mailing

600 4th Street South

St. Petersburg FL 33701 USA 727-502-8000 kmorgan@usgs.gov This publication was prepared by an agency of the United States Government. Although these data were processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. CSV, JPEG, TXT, XML CSV: Comma-separated values files representing table information collected during the flight. JPEG: Images can be opened directly with any JPEG-compatible image viewer. TXT: ASCII formatted metadata files. XML: Extensible Markup Language formatted metadata files. https://coastal.er.usgs.gov/data-release/doi-P9G9Q4EU Available Online None. 20201013 Karen L.M. Morgan USGS Geologist Physical and Mailing

600 4th Street South

St. Petersburg FL 33701 USA 727-502-8000 kmorgan@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998