Karen L.M. Morgan
Lance Thornton
20180420
Baseline coastal oblique aerial photographs collected from Dauphin Island, Alabama, to Breton Island, Louisiana, July 26–27, 2007
Raster and tabular digital data
U.S. Geological Survey Data Release
doi:10.5066/F7FJ2G2M
St. Petersburg, FL
U.S. Geological Survey
https://doi.org/10.5066/F7FJ2G2M
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 July 26-27, 2007, 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 and can also be used as a baseline 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 July 26-27, 2007, 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 07CCH01 please see https://cmgds.marine.usgs.gov/fan_info.php?fan=07CCH01. 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: 07CCH01-LocationMaps.zip, 07CCH01-ProcessedNav.zip, 07CCH01-SupplementalFiles.zip, and 07CCH01-RawGPSNav.zip; in addition to the digital oblique aerial image zip files.
20070726
225310
20070727
170019
ground condition
as needed
-89.228733
-88.060877
30.711303
29.457167
None
U.S. Geological Survey
National Assessment for Coastal Change Hazards
photographs
coastline
barrier islands
Barrier Island Evolution Research
oblique aerial photography
coastline
beach erosion
coastal aerial photography
baseline survey
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
None
2007
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-F7FJ2G2M/data/07CCH01-LocationMaps.zip (07CCH01-Survey-Map.jpg)
Map of survey area during USGS field activity 07CCH01.
JPEG
https://coastal.er.usgs.gov/data-release/doi-F7FJ2G2M/data/07CCH01-LocationMaps.zip
Maps showing the extent of each area and 5-minute segment can be found in the 07CCH01-LocationMaps.zip file. The maps in this survey are: 07CCH01-Map-Area01.jpg, Area 1 for Dauphin Island, Alabama; 07CCH01-Map-Area02.jpg, Area 2 from Dauphin Island, Alabama, to Petit Bois Island, Mississippi; 07CCH01-Map-Area03.jpg, Area 3 from Petit Bois Island, Mississippi, to Breton Island, Louisiana, and the inset map for Dauphin Island (07CCH01-Map-Inset01_Dauphin.jpg). 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 wish to thank Lt. Patrick Bachan and Lt. Bryan Bailey (pilot), Lt. Matt Furlong and Lt. Dave Aldous (copilot), and AMT3 Steve Fruzan and AET Molleye Curry (flight mechanic) of the U.S. Coast Guard for their assistance with data collection. This report benefited from the comments and review of Justin J. Birchler with the USGS St. Petersburg Coastal and Marine Science Center (SPCMSC), St. Petersburg, FL.
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 July 26-27, 2007, aboard a U.S. Coast Guard HH60 Helicopter aircraft, tail number HH6011. Crew members of the USGS in St. Petersburg, FL, included M. Dennis Krohn, Ann Marie Ascough, and Lance Thornton; and Lt. Patrick Bachan and Lt. Bryan Bailey (pilot), Lt. Matt Furlong and Lt. Dave Aldous (copilot), and AMT3 Steve Fruzan and AET Molleye Curry (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 (m).Still photography was collected along the coast during this survey. GPS Data Collection—Instrument: Garmin GPS 18 PC, WAAS Enabled. 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 meters (m)
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 internal camera cards. Image size is approximately 6MP. Images in JPEG format 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 2007_0726_133636d.jpg was taken July 26, 2007, 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.
20070726
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 video and still photography were shot out of the rear starboard window of the airplane. The video files are not included in this publication.
20070726
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 to JPEG format using Nikon Capture Camera Editor Ver 4.4.2. Images in JPEG format were saved using the filename format yyyy_mmdd_hhmmssd.jpg (where the "d" signifies acquisition using the digital camera). The names provide information about the photograph's year, month, day, hour, minute, and second. For example, image 2007_0726_133636d.jpg was taken July 26, 2007, at 13:36:36 UTC. Best attempts were made to set the camera's internal clock to within 1 second of UTC at the beginning of the flight.
20141216
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. The GPS positions for July 26 were extracted from the Fugawi files. However, no inflight GPS data was captured on July 27. The positions in this report for July 27 we extracted from the EXIF headers of the images using Photolink (ver. unknown).
20141216
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 10.4 software and saved as Adobe Illustrator (*.ai) files. Survey maps were edited using Adobe Illustrator CC and exported in JPEG format.
20180130
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 (< 317 MB) zip files for ease of download and review.
20180130
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 called met_add.pl.
20141216
Karen L.M. Morgan
USGS
Geologist
Physical and Mailing
600 4th Street South
St. Petersburg
FL
33701
USA
727-502-8000
kmorgan@usgs.gov
Point
Point
2170
0.0197878497
0.0227728255
Decimal Degrees
North American Datum of 1983
GRS 1980
6378137.0
298.257222101
07CCH01-Flightpath.csv, 07CCH01-Photolocation.csv
The "*Flightpath.csv" file contains the processed GPS information collected during the flight, while the "*Photolocations.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 image.
USGS
Zipfile name.
LONGITUDE
Longitude of photograph location, in decimal degrees (NAD83).
USGS
Coordinates defining the features.
LATITUDE
Latitude of photograph location, in decimal degrees (NAD83).
USGS
Coordinates defining the features.
DATE_FLOWN
Date images was captured, in yyyymmdd format.
USGS
Date defining the features.
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 defining the features.
GEO_AREA
The geographic area of the mission.
USGS
States partially 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 post-storm. Baseline or Post-Storm status.
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 flightline navigation file is 07CCH01-Flightpath.csv, the photo locations are in 07CCH01-Photolocations.csv, and are contained within the 07CCH01-ProcessedNav.zip file. The raw GPS is in 07CCH01-RawGPSNav.txt, which is contained within the 07CCH01-RawGPSNav.zip file. These zip files can be found in the data download table. The files (.csv and .txt) are comma-delimited CSV text files.
Graphic Image Files: The index map (07CCH01-Survey-Map.jpg) is a JPEG image. This map shows the baseline coastal oblique aerial photographs collected from Dauphin Island, Alabama, to Breton Island, Louisiana, July 26–27, 2007. It also shows three areas, which show to more detail and indicate how the full-size photographs are divided into each area. The area maps can be found in the 07CCH01-LocationMaps.zip file.
Navigation files: These files (*.csv) are comma-delimited.
none
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-F7FJ2G2M
Available Online
None.
20180420
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