Post-Hurricane Ivan coastal oblique aerial photographs collected from Crawfordville, Florida, to Petit Bois Island, Mississippi, September 17, 2004

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Frequently anticipated questions:


What does this data set describe?

Title:
Post-Hurricane Ivan coastal oblique aerial photographs collected from Crawfordville, Florida, to Petit Bois Island, Mississippi, September 17, 2004
Abstract:
The U.S. Geological Survey (USGS) conducts baseline and storm response photography missions to document and understand the changes in vulnerability of the Nation's coasts to extreme storms. On September 17, 2004, the USGS conducted an oblique aerial photographic survey from Crawfordville, Florida, to Petit Bois Island, Mississippi, aboard a Piper Navajo Chieftain aircraft at an altitude of 500 feet (ft) and approximately 1,000 ft offshore (Figure 2, http://pubs.usgs.gov/ds/0945/html/ds945_fig2.html). This mission was flown to collect data for assessing incremental changes since the last survey, flown July 2001 (http://compass.er.usgs.gov/activity_popup.php?id=2561), and can be used for assessing future coastal change. The photographs provided here are Joint Photographic Experts Group (JPEG) images. The photograph locations are an estimate of the position of the aircraft and do not indicate the location of the feature in the images (see Navigation Data page, http://pubs.usgs.gov/ds/0945/html/ds945_nav.html). These photographs document the configuration of the barrier islands and other coastal features at the time of the survey. ExifTool (http://www.sno.phy.queensu.ca/~phil/exiftool/) is a free software program for reading, writing, and manipulating image, audio, and video metadata. ExifTool was used to add the following to the header of each photo: time of collection, Global Positioning System (GPS) latitude, GPS longitude, keywords, credit, artist (photographer), caption, copyright, and contact information. Photographs can be opened directly with any JPEG-compatible image viewer by clicking on a thumbnail on the contact sheet. All image times are recorded in UTC. Table 1 (http://pubs.usgs.gov/ds/0945/html/ds945_table.html) provides detailed information about the assigned location, name, date, and time the photograph was taken along with a link to the photograph. In addition to the photographs, a Google Earth Keyhole Markup Language (KML) file is provided and can be used to view the images by clicking on the marker and then clicking on either the thumbnail or the link above the thumbnail. The KML files were created using the photographic navigation files. Note: A KML number was assigned to each photograph to aid navigation of the Google Earth file. These numbers correspond to the site labels in Google Earth.
Supplemental_Information:
For a summary of field activity 04ACH03 please see http://coastal.er.usgs.gov/field-activity-schedule/activity_popup.php?id=2561. Ancillary files included in this release are ds945_04ach03.csv, ds945_04ach03_0917_plgrgov.txt, and ds945_04ach03.kml, in addition to the digitized oblique aerial image files.
  1. How might this data set be cited?
    Morgan, Karen L.M., Krohn, M. Dennis, Peterson, Russell, Thompson, Phillip R., and Subino, Janice, 2015, Post-Hurricane Ivan coastal oblique aerial photographs collected from Crawfordville, Florida, to Petit Bois Island, Mississippi, September 17, 2004: U.S. Geological Survey Data Series Data Series 945, U.S. Geological Survey, St. Petersburg, Fla..

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -89.06616667
    East_Bounding_Coordinate: -82.606625
    North_Bounding_Coordinate: 30.42316667
    South_Bounding_Coordinate: 27.76293889
  3. What does it look like?
    http://pubs.usgs.gov/ds/0945/maps/index.jpg (JPEG)
    Index map of all survey areas covered during USGS field activity 04ACH03. Red line shows the storm track (provided by Unisys Weather and The Weather Underground).
    http://pubs.usgs.gov/ds/0945/html/images/fig2.jpg (JPEG)
    Graphic for Acquisition Geometry (Figure 2) for USGS field activity 04ACH03. Graphic shows basic flight distance from the shore and elevation during the survey for the aircraft used.
    http://pubs.usgs.gov/ds/0945/html/images/contents.jpg (JPEG)
    Graphic used on Contents page of USGS field activity 04ACH03 oblique aerial photographs Data Deries. Graphic shows the directory structure of the publication.
    http://pubs.usgs.gov/ds/0945/maps/04ach03_1.jpg (JPEG)
    Map showing the extent of Area 1 for the post-Hurricane Ivan coastal oblique aerial photographs from Crawfordville, Florida, to Panama City, Florida. The flight path, divided into 5-minute segments, is represented by the alternating purple and yellow lines. Pages containing thumbnail images of photographs, referred to as contact sheets, were created based on these segments.
    http://pubs.usgs.gov/ds/0945/maps/04ach03_2.jpg (JPEG)
    Map showing the extent of Area 2 for the post-Hurricane Ivan coastal oblique aerial photographs from Laguna Beach, Florida to Pensacola Beach, Florida. The flight path, divided into 5-minute segments, is represented by the alternating purple and yellow lines. Pages containing thumbnail images of photographs, referred to as contact sheets, were created based on these segments.
    http://pubs.usgs.gov/ds/0945/maps/04ach03_3.jpg (JPEG)
    Map showing the extent of Area 3 for the post-Hurricane Ivan coastal oblique aerial photographs from Fort McRee, Florida, to Gulfport, Mississippi. The flight path, divided into 5-minute segments, is represented by the alternating purple and yellow lines. Pages containing thumbnail images of photographs, referred to as contact sheets, were created based on these segments. The red line shows the storm track (provided by the Unisys Weather and The Weather Underground).
    http://pubs.usgs.gov/ds/0945/maps/04ach03_4.jpg (JPEG)
    Map showing the extent of Area 4 for the post-Hurricane Ivan coastal oblique aerial photographs from Fort McRee, Florida, to Petit Bois Island, Alabama. The flight path, divided into 5-minute segments, is represented by the alternating purple and yellow lines. Pages containing thumbnail images of photographs, referred to as contact sheets, were created based on these segments. The red line shows the storm track (provided by the Unisys Weather and The Weather Underground).
    http://pubs.usgs.gov/ds/0945/maps/04ach03_5.jpg (JPEG)
    Map showing the extent of Area 5 for the post-Hurricane Ivan coastal oblique aerial photographs from Dauphin Island, Alabama, to Perdido Key, Florida, and continuing on to Panama City, Florida. The flight path, divided into 5-minute segments, is represented by the alternating purple and yellow lines. Pages containing thumbnail images of photographs, referred to as contact sheets, were created based on these segments. The red line shows the storm track (provided by Unisys Weather and The Weather Underground).
    http://pubs.usgs.gov/ds/0945/maps/inset04_miramarbch.jpg (JPEG)
    Inset map showing the extent of inset04_miramarbch.jpg for the post-Hurricane Ivan coastal oblique aerial photographs from Santa Rosa Beach to Destin, Florida. The flight path, divided up into 5-minute segments, is represented by the alternating purple and yellow lines. Pages containing thumbnail images of photographs, referred to as contact sheets, were created based on these segments.
    http://pubs.usgs.gov/ds/0945/maps/inset05_ftwaltonbch.jpg (JPEG)
    Inset map showing the extent of inset05_ftwaltonbch.jpg for the post-Hurricane Ivan coastal oblique aerial photographs on Okaloosa Island at Fort Walton Beach, Florida. The flight path, divided up into 5-minute segments, is represented by the alternating purple and yellow lines. Pages containing thumbnail images of photographs, referred to as contact sheets, were created based on these segments.
    http://pubs.usgs.gov/ds/0945/maps/inset06_pensacolabch.jpg (JPEG)
    Inset map showing the extent of inset06_pensacolabch.jpg for the post-Hurricane Ivan coastal oblique aerial photographs at Pensacola Beach, Florida. The flight path, divided up into 5-minute segments, is represented by the alternating purple and yellow lines. Pages containing thumbnail images of photographs, referred to as contact sheets, were created based on these segments.
    http://pubs.usgs.gov/ds/0945/maps/inset07_perdidokey.jpg (JPEG)
    Inset map showing the extent of inset07_perdidokey.jpg for the post-Hurricane Ivan coastal oblique aerial photographs at the east end of Perdido Key, Florida. The flight path, divided up into 5-minute segments, is represented by the alternating purple and yellow lines. Pages containing thumbnail images of photographs, referred to as contact sheets, were created based on these segments.
    http://pubs.usgs.gov/ds/0945/maps/inset08_dauphin.jpg (JPEG)
    Inset map showing the extent of inset08_dauphin.jpg for the post-Hurricane Ivan coastal oblique aerial photographs Dauphin Island. The flight path, divided up into 5-minute segments, is represented by the alternating purple and yellow lines. Pages containing thumbnail images of photographs, referred to as contact sheets, were created based on these segments.
    http://pubs.usgs.gov/ds/0945/maps/inset09_gulfshr.jpg (JPEG)
    Inset map showing the extent of inset09_gulfshr.jpg for the post-Hurricane Ivan coastal oblique aerial photographs at Gulf Shores, Alabama. The flight path, divided up into 5-minute segments, is represented by the alternating purple and yellow lines. Pages containing thumbnail images of photographs, referred to as contact sheets, were created based on these segments. Red line shows the storm track (provided by Unisys Weather and The Weather Underground).
    http://pubs.usgs.gov/ds/0945/maps/inset10_perdidokey.jpg (JPEG)
    Inset map showing the extent of inset10_perdidokey.jpg for the post-Hurricane Ivan coastal oblique aerial photographs at the east end of Perdido Key, Florida. The flight path, divided up into 5-minute segments, is represented by the alternating purple and yellow lines. Pages containing thumbnail images of photographs, referred to as contact sheets, were created based on these segments.
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 17-Sep-2004
    Ending_Date: 17-Sep-2004
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: Multimedia
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      Indirect_Spatial_Reference: none
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000001. Longitudes are given to the nearest 0.000001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is D North American 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.
  7. How does the data set describe geographic features?
    Entity_and_Attribute_Overview:
    KML file: The Google Earth project is available as a KML file. The post-Hurricane Ivan storm track KML was provided by Unisys Weather and the Weather Underground. One KML file was created, ds945_04ACH03.kml. The KML file includes photo numbers, photo locations, and the storm track.
    Entity_and_Attribute_Overview: Entity_and_Attribute_Overview:
    Graphic Image Files: The index map is a JPEG image. The index map shows the coastal oblique aerial photographs collected from Crawfordville, Florida, to Petit Bois Island, Mississippi, September 17, 2004. The index map also shows five region boxes, which link to more detailed maps and indicate how the full-size photographs are divided into smaller area(s) The survey area maps are JPEG images. The survey maps contain links to the 5-minute segment's contact sheet.
    Entity_and_Attribute_Overview:
    Navigation file(s): The navigation files are ds945_04ach03.csv and ds945_04ach03_0917_plgrgov.txt (located in the nav folder). The processed file (*.csv) and the raw navigation file (*.txt) are comma delimited ASCII text files and can be found in http://pubs.usgs.gov/ds/0945/nav.
    Entity_and_Attribute_Overview: KML file(s): The KML files is ds945_04ACH03.kml.
    Entity_and_Attribute_Detail_Citation:
    Subino, J.A., Morgan, K.L.M., Krohn, M.D., Miller, G.K., Dadisman, S.V., and Forde, A.S., 2012, Archive of post-Hurricane Charley coastal oblique aerial photographs collected during U.S. Geological Survey field activity 04CCH01 from Marco Island to Fort DeSoto, Florida, August 15, 2004: U.S. Geological Survey Data Series 651, 2 DVDs, at http://pubs.usgs.gov/ds/651/.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Karen L.M. Morgan
    • M. Dennis Krohn
    • Russell Peterson
    • Phillip R. Thompson
    • Janice Subino
  2. Who also contributed to the data set?
    Funding and (or) support for this study was provided by the USGS Coastal and Marine Geology Program (CMGP). The authors wish to thank the pilot, Mark Frame, for his assistance in data collection. This report benefited from the comments and reviews of Bryan McCloskey and Justin Birchler of Cherokee Nation Technology Solutions contracted to U.S. Geological Survey St. Petersburg Coastal and Marine Science Center (SPCMSC), St. Petersburg, Florida.
  3. To whom should users address questions about the data?
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 502-8037 (voice)
    kmorgan@usgs.gov

Why was the data set created?

To provide access to digital photographs taken as part of the September 17, 2004, post-Hurricane Ivan oblique aerial survey collected along the coast, from Crawfordville, Florida, to Petit Bois Island, Mississippi, and to provide access to attribute data that document the time and location of where each photograph was taken.

How was the data set created?

  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
    Date: 17-Sep-2004 (process 1 of 16)
    Anaolog (film) Photographs: Photographs were taken with two Nikon F3 cameras, each with a fixed 50-millimeter lens and a Skylight filter. One camera shot the odd-numbered rolls, and the other camera shot the even-numbered rolls. Both cameras were equipped with a Nikon MF-14 Data Back. Rolls were numbered by hand in the air. Film used was Kodak Ektachrome E6. Commonly used shutter speeds were 1/250 seconds or 1/125 seconds. A constant shutter speed was attempted but may vary with there was a noticeable changes in light levels. The f-stop was changed to compensate for changes in light levels. The Nikon MF-14 Data Back imprinted day, hour, and minute (UTC) to the lower right-hand corner of each photo. All photographs were taken from the second-to-last rear starboard window of the airplane. Independent of all other equipment, a Rockwell Collins PLGR GPS recorded navigation fixes, at a 30-second interval, acquired from a National Marine Electronics Association (NMEA) string during the flight. These cameras' images are denoted by a "r###s##" in the file name. The images are labeled with the following file name format: yyyy_mmdd_r###s##.jpg, where yyyy denotes the year, mmdd denotes the month and day, r### is the film roll number and s## is the slide number of the image. For example, image 2004_0917_r001s03.jpg was taken September 17, 2004, and is on the first roll of the flight, the third slide. Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    727-502-8037 (voice)
    kmorgan@usgs.gov
    Date: 17-Sep-2004 (process 2 of 16)
    Digital Photographs: Photographs were taken using a Nikon D1X camera. Images were written directly to the camera’s internal cards. Best effort was made at the beginning of the flight to synchronize the camera's internal clocks to within 1 second of UTC time from the GPS sensor. Image size is approximately 6 megapixels. Digital photographs were taken from the port side of the aircraft. Photographer: Karen L.M. Morgan. Note: GPS locations indicate the position of the aircraft at the time of the photograph, not the position of the feature in the image. This camera's images are denoted by a "d" in the file name. The images are labeled with the following file name format: yyyy_mmdd_hhmmss.jpg, where yyyy denotes the year, mmdd denotes the month and day, and hhmmss denotes hour, minute, and second of the image. For example, image 2004_0917_164000d.jpg was taken September 17, 2004, at 16:40:00 Universal Time Coordinated (UTC). Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 502-8037 (voice)
    kmorgan@usgs.gov
    Date: 18-Sep-2004 (process 3 of 16)
    E6 Ektachrome slide processing by Zebra Color Photo Lab in St. Petersburg, Florida. Date, film, and roll number printed on slide mount. Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 502-8037 (voice)
    kmorgan@usgs.gov
    Date: 20-Sep-2004 (process 4 of 16)
    Navigation files were extracted as comma-delimited American Standard Code for Information Interchange (ASCII) text files. The Rockwell Collins PLGR recorded: sequence number, year (ID_NUM), waypoint_name, projection, latitude (degrees, minute, seconds), latitude (decimal degrees), longitude (degrees, minute, seconds), longitude (decimal degrees), altitude (feet) and datum for the entire flight every 30 seconds; however, no time was recorded by the Rockwell Collins PLGR. Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 502-8037 (voice)
    kmorgan@usgs.gov
    Date: 15-Sep-2006 (process 5 of 16)
    The video was shot out of the rear starboard window of the airplane using a Sony DCR-VX1000 Handycam operated by Russell Peterson. The camera recorded the video on Mini DV tapes and sent the video signal to a Panasonic AG-5700 to record on SVHS tape. A Compix Titler unit added video subtitles that include latitude, longitude, and time (Hour:Minute:Second). Navigation was provided to the Compix by a Trimble Centurion GPS receiver, and time was provided by the titler unit's internal clock, which had been synchronized with UTC time. The SVHS video was digitally captured using Mac iMovie and divided into 5-minute segments consistent with the 5-minute HTML pages, each spanning a 5-minute section of the flight. Mini DV tapes were digitally captured using a Pioneer Elite Reference DVD Recorder DVR-7000 and saved to DVD. The video files are not included in this report. Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    727-502-8037 (voice)
    kmorgan@usgs.gov
    Date: 15-Sep-2006 (process 6 of 16)
    Latitude, longitude (degree, decimal minutes), and time were manually extracted from the video every 5 minutes. Latitude and longitude were converted to decimal degrees using Microsoft Excel 2011 and saved as the comma-separated value (CSV) file. These values were used to in conjunction with the PLGR data to generate a smoother flight path. Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    727-502-8037 (voice)
    kmorgan@usgs.gov
    Date: 15-Sep-2006 (process 7 of 16)
    Raw and Manually Extracted Navigation Processing: The values from the PLGR file were merged with the manually extracted positions from the video, then the time was interpolated between these positions using a custom Perl script and written to a CSV file, producing a 1-second time record (hour:minute:second) for the entire survey. Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 502-8037 (voice)
    kmorgan@usgs.gov
    Date: 15-Jul-2006 (process 8 of 16)
    Converted Mini DV tapes to DVD using a Pioneer Elite Reference DVD Recorder DVR-7000. The videos are not included in this report. Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    727-502-8037 (voice)
    kmorgan@usgs.gov
    Date: 09-Aug-2006 (process 9 of 16)
    Slides were scanned using a Nikon Super CoolScan 5000 scanner and Nikon Scan 4 software. The slides were scanned using Digital Image Correction and Enhancement (ICE) technology at a resolution of 3000 dots per inch and files were saved as 18.6-megabyte TIFF images. The TIFF images were then converted to JPEG images at a resolution of 3000 dots per inch using Adobe Photoshop CS6. Digital ICE technology automatically removes artifacts, such as dust and scratches from scanned images.Slide names (year_monthday_roll number_slide number) and time (hour, minute) were manually entered into a Microsoft Excel 2011 spreadsheet. A Nikon MF-14 Data Back marked the time each photograph was acquired on the lower right corner of the image in day, hour, and minute format. It is assumed, for the purposes of location, that the photographs were taken at a constant rate during any given minute of flight. To assign a time value in seconds to each photograph, the number of photographs taken during each minute was evenly distributed across those 60 seconds. For example: if 15 photographs were taken during minute 19:00:00, we assume that a picture was taken every 4 seconds. The photographs were then assigned the time values 19:00:00, 19:00:04, 19:00:08, and so on. As a result, it should be noted that the positions assigned to each photograph are an estimate of the aircraft position, not the location of the landmark photographed. This file was named slides.xls. The photograph names provide information about the photograph's year, date, roll number, and slide number. For example, image 2004_0917_r001s03.jpg was taken September 17, 2004, and is on the first roll of the flight, the third slide. Only the JPEG images are included in this report. Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    727-502-8037 (voice)
    kmorgan@usgs.gov
    Date: 09-Aug-2006 (process 10 of 16)
    Processed Navigation: The values from the 1-second time record for the entire flight were merged with the time file to produce a latitude, longitude, and time record for each slide. The processed navigation file was saved as a comma-separated value CSV file, ds945_04ach03.csv, using Microsoft Excel 2011. This file can be found in http://pubs.usgs.gov/ds/0945/nav Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    727-502-8037 (voice)
    kmorgan@usgs.gov
    Date: 02-Apr-2015 (process 11 of 16)
    The digitized slides were organized into HTML contact sheets based on time. A contact sheet was created for every 5-minute segment of the survey. The contact sheets contain a thumbnail of the area map showing the flight segment during which the photographs were taken and thumbnails of each of the photographs. Each thumbnail links to the corresponding full-size area map or photograph. Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    727-502-8037 (voice)
    kmorgan@usgs.gov
    Date: 02-Apr-2015 (process 12 of 16)
    Geospatial Processing: The navigation data were edited using Microsoft Excel 2011 and saved as CSV files to make them compatible with ArcGIS software and used to produce Esri shapefiles using ArcGIS 10.1. These shapefiles were used to produce the JPEG maps included in this report, however, the shapefiles are not included in this report. Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 502-8037 (voice)
    kmorgan@usgs.gov
    Date: 03-Apr-2015 (process 13 of 16)
    Survey map creation: The survey maps provided in this archive were created with Environmental Systems Research Institute (Esri) ArcGIS 10.1 software and saved as Adobe Illustrator (*.ai) files. Survey maps were edited using Adobe Illustrator CS6 and exported in JPEG format. Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 502-8037 (voice)
    kmorgan@usgs.gov
    Date: 03-Apr-2015 (process 14 of 16)
    Google Earth file creation: The KML files were created using the photographic navigation file ds945_04ach03.csv. The storm track (in KML format) was provided by the Weather Underground and Unisys Weather. The USGS is the originator of all other layers. To aid navigation through the KML file, each image was assigned a sequential KML number. Table 1 of this report shows the KML number given to each image, the corresponding image name, and associated attributes. Each point on the Google Earth file contains the KML number, storm name, latitude, longitude, image name, geographic area, date, time, a thumbnail of the full-size photograph, and links to the full-size photographs and contact sheets. Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 502-8037 (voice)
    kmorgan@usgs.gov
    Date: 02-Apr-2015 (process 15 of 16)
    EXIF headers: EXIF and International Press Telecommunications Council (IPTC) headers were populated from the command prompt using ExifTool (http://www.sno.phy.queensu.ca/~phil/exiftool, 2012) 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 photo creation include time, GPS latitude, GPS longitude, keywords, credit, artist (photographer), caption, copyright, and contact were added to each photograph's EXIF header using a custom Perl script created by K. Morgan. Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 502-8037 (voice)
    kmorgan@usgs.gov
    Date: 03-Apr-2015 (process 16 of 16)
    In addition to the process steps described above, the following steps were taken to produce this data series report: digital Field Activity Collection System (FACS) logs were created by listening to the tapes and personal accounts of the crew members and saved as PDF and TXT files. In addition, an HTML-based format was used to present the various parts of this archive. Person who carried out this activity:
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 502-8037 (voice)
    kmorgan@usgs.gov
  3. What similar or related data should the user be aware of?

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    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, which adds a caption to the bottom of the video stream for recording, 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 linearly interpolated from known navigation (collected once every 30 seconds) and time stamps (collected once every minute). NOTE: Latitude and longitude positions in this report refer to the position of the aircraft, not the position of the landmarks photographed. Refer to the Process Steps below for more detail.
  2. How accurate are the geographic locations?
    Best attempts were made to maintain the same relative distance between the aircraft and the beach in order to keep a constant field of view.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    No known issues
  5. How consistent are the relationships among the observations, including topology?
    Data presented here include the digitally scanned analog and digitally collected photographs in JPEG format with EXIF headers imbedded and the location of the flight path of a post-Hurricane Ivan coastal oblique aerial photographic survey of the coast, from Crawfordville, Florida, to Petit Bois Island, Mississippi. This mission was flown on September 17, 2004, aboard a Piper Navajo Chieftain, tail number N2KK. Crew members of the USGS in St. Petersburg, Florida, include Karen L.M. Morgan, M. Dennis Krohn, Phillip Thompson, and Russell Peterson, with pilot, Mark Frame, of Bay Air Charters, Inc. Still photography was collected along the coast during this survey. Photographer: Karen L.M. Morgan. GPS Data Collection - Instrument: Trimble Centurion GPS and Precision Lightweight GPS Receiver. GPS Data Collection Interval: Two seconds (Trimble) and 30 seconds (PLGR). Data File Format: Text (ASCII). Number of files created: Two. Computer/Software: None Computer: None. The GPS unit was used to record navigation fixes of the aircraft, not the position of the features imaged. For a summary of field activity 04ACH03 please see http://coastal.er.usgs.gov/field-activity-schedule/activity_popup.php?id=2561.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: None
Use_Constraints:
The U.S. Geological Survey requests to be acknowledged as originator of the data in future products or derivative research.
  1. Who distributes the data set? (Distributor 1 of 1)
    K. Morgan
    USGS
    Geologist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 502-8037 (voice)
    kmorgan@usgs.gov
  2. What's the catalog number I need to order this data set? U.S. Geological Survey Data Series 945
  3. What legal disclaimers am I supposed to read?
    This publication was prepared by an agency of the United States Government. Although these data have been 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.
  4. How can I download or order the data?
    • Availability in digital form:
      Data format: CSV: CSV files representing table information collected during the flight. JPEG: Digitally scanned images of 35-mm analog slides and digitally captured images. Images can be opened directly with any JPEG-compatible image viewer. The survey's full-size photographs are divided into areas. TXT: Text files representing the navigation files, FACS log, metadata and readme files collected during and after the survey. KMLs: The KMLs provided may be viewed with Google Earth (http://www.google.com/earth/download/ge/agree.html). in format CSV, JPEG, TXT, KML
      Network links: http://pubs.usgs.gov/ds/0945
    • Cost to order the data: Prices vary. None.

    • Special instructions:
      Publications are available from USGS Information Services, Box 25286, Federal Center, Denver, Col., 80225-0046 (telephone: 1-888-ASK-USGS, e-mail: infoservices@usgs.gov).

Who wrote the metadata?

Dates:
Last modified: 03-Apr-2015
Metadata author:
K. Morgan
USGS
Geologist
600 4th Street South
St. Petersburg, FL
USA

(727) 502-8037 (voice)
kmorgan@usgs.gov
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

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