Post-Nor'Ida Coastal Oblique Aerial Photographs Collected from Ocean City, Maryland, to Hatteras, North Carolina, December 4, 2009

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Frequently anticipated questions:


What does this data set describe?

Title:
Post-Nor'Ida Coastal Oblique Aerial Photographs Collected from Ocean City, Maryland, to Hatteras, North Carolina, December 4, 2009
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 December 4, 2009, the USGS conducted an oblique aerial photographic survey from Ocean City, Maryland, to Hatteras, North Carolina, aboard a U.s. Coast Guard H60 Helicopter at an altitude of 500 feet (ft) and approximately 1,200 ft offshore (Figure 2, http://pubs.usgs.gov/ds/0930/html/ds930_fig2.html). This mission was flown to collect data for assessing incremental changes since the last surveys, flown in May 2009 (http://compass.er.usgs.gov/activity_popup.php?id=154) and May 2008 (http://compass.er.usgs.gov/activity_popup.php?id=114), 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 and aircraft do not indicate the location of the feature in the images (See the Navigation Data page, http://pubs.usgs.gov/ds/0930/html/ds930_nav.html). These photographs document the configuration of the barrier islands and other coastal features at the time of the survey. 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 (see process step below). 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/0930/html/ds930_table.html) provides detailed information about the assigned location, name, date, and time the photograph was taken along with links 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:
NOTE: No photographs were taken during the following 5-minute segments: ds930_2009_1204_183000 through ds930_2009_1204_184500. No surveying was conducted during that time. For a summary of field activity 09ACH03 please see .
  1. How might this data set be cited?
    Morgan, Karen L.M., Krohn, M. Dennis, and Guy, Kristy, 2014, Post-Nor'Ida Coastal Oblique Aerial Photographs Collected from Ocean City, Maryland, to Hatteras, North Carolina, December 4, 2009: U.S. Geological Survey Data Series 930, U.S. Geological Survey, St. Petersburg, Fla..

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -76.174698
    East_Bounding_Coordinate: -75.078166
    North_Bounding_Coordinate: 38.343167
    South_Bounding_Coordinate: 35.209
  3. What does it look like?
    http://pubs.usgs.gov/ds/0930/maps/index.jpg (JPG)
    Index map of all survey area collected during USGS field activity 09ACH03. Red line shows the storm track (provided by the National Oceanic and Atmospheric Administration [NOAA]).
    http://pubs.usgs.gov/ds/0930/html/images/fig2.jpg (JPG)
    Graphic for Acquisition Geometry (Figure 2) for USGS field activity 09ACH03. Graphic shows basic flight distance from the shore and elevation during the survey for the aircraft used.
    http://pubs.usgs.gov/ds/0930/html/images/contents.jpg (JPG)
    Graphic used on Contents page of USGS field activity 09ACH03 oblique aerial photographs data series. Graphic shows the directory structure of the publication.
    http://pubs.usgs.gov/ds/0930/maps/09ach03_1.jpg (JPG)
    Map showing the extent of Area 1 for the Post-Nor'Ida coastal oblique aerial photographs from Ocean City, Md., to Cape Charles, Va. The flightpath is divided into 5-minute (time) segments and 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/0930/maps/09ach03_2.jpg (JPG)
    Map showingthe extent of Area 2 for the Post-Nor'Ida coastal oblique aerial survey flightpath from Virginia Beach, Virginia, to Hatteras, North Carolina. The flightpath is divided into 5-minute (time) segments and is represented by the alternating purple and yellow lines. Pages containing thumbnail images of the photographs, referred to as contact sheets, were created based on these segments. Click on the 5-minute segment name to view each contact sheet. Click on the inset box to view a detailed map of the area.
    http://pubs.usgs.gov/ds/0930/maps/inset_oceancity.jpg (JPG)
    Inset map showing the extent of inset_oceancity.jpg for the Post-Nor'Ida coastal oblique aerial photographs from Ocean City, through the north end of Assateague Island, Md. The flightpath is divided into 5-minute (time) segments and 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/0930/maps/inset_duck.jpg (JPG)
    Inset map showing the extent of inset_duck.jpg for the Post-Nor'Ida coastal oblique aerial photographs from Duck, N.C., in the area of the U.S. Army Corps Engineers Field Research Facility (USACE FRF). The flightpath is divided into 5-minute (time) segments and 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/0930/maps/inset_rodanthe.jpg (JPG)
    Inset map showing the extent of inset_rodanthe.jpg for the Post-Nor'Ida coastal oblique aerial photographs from Salvo to Hog Island, N.C. The flightpath is divided into 5-minute (time) segments and 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/0930/maps/inset_hatteras.jpg (JPG)
    Inset map showing the extent of inset_hatteras.jpg for the Post-Nor'Ida coastal oblique aerial photographs from Hatteras Village to Frisco, N.C. The flightpath is divided into 5-minute (time) segments and 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 National Oceanic and Atmospheric Administration [NOAA]).
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 04-Dec-2009
    Beginning_Time: 12:35:09
    Ending_Date: 04-Dec-2009
    Ending_Time: 23:39:10
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: Multimedia presentation
  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 WGS84.
      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 Keyhole Markup Language (KML) file. The Nor'Ida storm track, including the extratropical portion of the track KML was provided by National Oceanic and Atmospheric Administration (NOAA). The KML includes photo numbers, photo locations, and the storm track.
    Entity_and_Attribute_Overview:
    National Oceanic and Atmospheric Administration (NOAA), 2014, Nor'Ida Post-Nor'Ida storm track (KMZ), available at http://www.srh.noaa.gov/gis/kml/. Additional storm location information from the Port-Ida remnant advisories were added to the track. Remnant advisories are often published as tracking information after the official storm advisories have ended.
    Entity_and_Attribute_Overview:
    Graphic Image Files: The index map is a JPEG image. The index map shows the locations of coastal oblique aerial photographs collected from Ocean City, Maryland, to Hatteras, North Carolina, December 4, 2009. The index map also shows two region boxes, which link to more detailed maps and indicate how the full-size photographs are divided into area(s); Area 1 and Area 2. The survey area maps are JPEG images. The survey maps contain links to the 5-minute segment contact sheet pages.
    Entity_and_Attribute_Overview:
    Navigation file(s): The navigation files are ds930_09ach03.csv and ds930_09ach03_1204_estimatedGPS.txt (located in the nav folder, http://pubs.usgs.gov/ds/0930/html/ds930_nav.html). The processed files are *.csv files (comma delimited) and the raw navigation files, *.txt, (tab delimited) are ASCII text files.
    Entity_and_Attribute_Overview: KML file(s): The KML file is ds930_09ACH03.kml.
    Entity_and_Attribute_Detail_Citation:
    Subino, J.A., Morgan, K.L.M., Krohn, M.D., Miller, G.K., Dadisman, S.V., 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
    • Kristy Guy
  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 pilot, Lt. William Coty, LTJG Matt Herring, and AMT3 Ed Sychora of the Elizabeth City U.S. Coast Guard Airstation, for their assistance in data collection. This report benefited from the comments and reviews of Ginger Range with the USGS St. Petersburg Coastal and Marine Science Center (SPCMSC) - St. Petersburg, Fla., and Jacquelyn Overbeck. Cherokee Nation Technology Solutions contracted to the USGS St. Petersburg Coastal and Marine Science Center (SPCMSC).
  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 December 4, 2009, Post-Nor'Ida oblique aerial survey collected along the coast, from Ocean City, Maryland, to Hatteras, North Carolina, and to provide access to attribute data that documents 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: 15-Dec-2009 (process 1 of 7)
    Photographs were taken using a Nikon D1X camera. Images were written to an internal flash card. 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. The D1X records time in the EXIF Header. Image size is approximately 6 megapixels. Note: The estimated GPS locations record estimated navigation fixes of the aircraft, not the position of the features imaged. 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-Dec-2009 (process 2 of 7)
    Geospatial Processing: These spreadsheets were edited using Microsoft Excel 2011 and saved as comma-separated value (CSV) files to make them compatible with ArcGIS software. The latitude/longitude data from the CSV navigation file, called XSTORMS.h20091204_photographs, were used to produce ESRI shapefiles using ArcGIS 10.1. These shapefiles were used to produce the JPEG maps included in this report. The shapefiles are not included in this report. Person who carried out this activity:
    K. Guy
    USGS
    GIS Specialist
    600 4th Street South
    St. Petersburg, FL
    USA

    (727) 502-8063 (voice)
    kguy@usgs.gov
    Date: 10-Sep-2014 (process 3 of 7)
    Navigation processing: Using a custom Perl script written by K. Morgan - USGS, GPS data and image files are used to generate CSV files containing latitude, longitude, and time record for each image. Each processed navigation file was saved as a comma separated value (CSV) file, ds930_2014-326-FA.csv, using Microsoft Excel 2011. 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-Oct-2014 (process 4 of 7)
    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: 20-Oct-2014 (process 5 of 7)
    EXIF Header Population. The header of each photo is populated with time of collection, Global Positioning System (GPS) latitude, GPS longitude, GPS position (latitude and longitude), keywords, credit, artist (photographer), caption, copyright, and contact; these were added to each photograph's EXIF header using ExifTools. ExifTool (http://www.sno.phy.queensu.ca/~phil/exiftool/) is a free software program for reading, writing, and manipulating image, audio, and video metadata. 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-Oct-2014 (process 6 of 7)
    Google Earth file creation: The KML files were created using the photographic navigation file ds930_09ach03.csv. The storm track (in KML format) was provided by the National Oceanic and Atmospheric Administration (NOAA). The USGS is the originator of all other layers. To aid navigation through the Keyhole Markup Language (KML) file, each image was assigned a sequential KML number. Table 1 (http://pubs.usgs.gov/ds/0930/html/ds930_table.html) 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: 20-Oct-2014 (process 7 of 7)
    In addition to the process steps described above, the following steps were taken to produce this data series: digital Field Activity Collection System (FACS) logs were created at the beginning of each flight 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?
    Due to equipment restrictions by the USCG, no GPS data were collected during the flight.
  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. The survey was suspended from approximately 183000 to 184500.
  5. How consistent are the relationships among the observations, including topology?
    Data presented here include the digitally collected photographs in JPEG format with EXIF headers imbedded with the individual photograph's location along the flight path of a Post-Nor'Ida coastal oblique aerial photographic survey of the coast, from Ocean City, Maryland, to Hatteras, North Carolina. This mission was flown on December 4, 2009, aboard a U.S. Coast Guard HH60 Helicopter, tail number 6017. Crew members of the USGS in St. Petersburg, Fla., include Karen L M. Morgan, M. Dennis Krohn and Kristy Guy, with pilot, Lt. William Coty, Ltjg Matt Herring, and AMT3 Ed Sychorafor of U.S. Coast Guard. GPS Data Collection - none. Due to equipment restrictions by the USCG, no GPS data were collected during the flight. Image positions were post-processed using two previous flights, May 2008 and May 2009, by matching image features and assigning the GPS location of the previous flight's image to the corresponding image from this flight. Matches were made along the coast approximately every one to two minutes of flight time. The time of capture (timestamp) for each image was recorded in the image header during the flight. Based on the timestamp from the camera, a time was assigned to each GPS location, and then the estimated GSP track for the whole flight was calculated at a resolution of one position per second per record. The positions of the remaining images were then interpolated to give the best GPS position for each image. The estimated time/GPS file can be found in the Nav Folder (http://pubs.usgs.gov/ds/0930/html/ds930_nav.html).

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 930
  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: Comma separate values files representing table information collected during the flight. JPEG: Images can be opened directly with any JPEG-compatible image viewer. The survey's full-size photographs are divided into areas. ds930_09ACH03.kml has 2381 photographs.TXT: Text files representing the navigation files, FACS log, metadata and read-me files collected during and after the survey. KML: 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/0930
    • Cost to order the data:

      Prices vary. None, if obtained online. Price for offline option will vary depending on the number of disks in the flight.

    • 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: 12-Aug-2024
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)

This page is <https://cmgds.marine.usgs.gov/catalog/spcmsc/09ACH03_ObliqueAerialPhoto_metadata.faq.html>
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