Baseline coastal oblique aerial photographs collected at Breton Island and the Chandeleur Islands, Louisiana, January 22, 2011

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Karen L.M. Morgan
Originator: Karen A. Westphal
Publication_Date: 20171201
Title:
Baseline coastal oblique aerial photographs collected at Breton Island and the Chandeleur Islands, Louisiana, January 22, 2011
Geospatial_Data_Presentation_Form: Raster and tabular digital data
Series_Information:
Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/F7WS8RCP
Publication_Information:
Publication_Place: St. Petersburg, FL
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/F7WS8RCP
Description:
Abstract:
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 January 22, 2011, the USGS conducted an oblique aerial photographic survey at Breton Island and the Chandeleur Islands, LA, aboard a Cessna 210 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 since the last survey, which was flown in September 2010 (http://cmgds.marine.usgs.gov/fan_info.php?fan=10CCH02) (unpublished), and the data can be used as a baseline to assess future coastal change.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 feature 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 by clicking on a thumbnail on the contact sheet. All image times are recorded in Coordinated Universal Time (UTC).
Purpose:
To provide access to digital photographs taken as part of the January 22, 2011, baseline oblique aerial survey collected along the coast at Breton Island and the Chandeleur Islands, LA, and to provide access to attribute data that documents the time and location where each photograph was taken.
Supplemental_Information:
For a summary of field activity 11CCH01 please see http://cmgds.marine.usgs.gov/fan_info.php?fan=11CCH01. 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: 11CCH01-LocationMaps.zip, 11CCH01-ProcessedNav.zip, 11CCH01-SupplementalFiles.zip, and 11CCH01-RawGPSNav.zip; in addition to the digital oblique aerial image zip files.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20110122
Beginning_Time: 151732
Ending_Date: 20110122
Ending_Time: 170535
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: as needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -90.007417
East_Bounding_Coordinate: -88.805833
North_Bounding_Coordinate: 30.087117
South_Bounding_Coordinate: 29.421783
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:a12a2f95-a0ce-4f75-883b-b16fb62c1a63
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: National Assessment for Coastal Change Hazards
Theme_Keyword: photographs
Theme_Keyword: coastline
Theme_Keyword: beach erosion
Theme_Keyword: coastal aerial photography
Theme_Keyword: baseline survey
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: environment
Theme_Keyword: imageryBaseMapsEarthCover
Theme_Keyword: structure
Theme_Keyword: oceans
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: marine geology
Theme_Keyword: geomorphology
Theme_Keyword: image collections
Theme_Keyword: photography
Theme_Keyword: ocean characteristics
Theme_Keyword: ocean processes
Theme_Keyword: erosion
Theme_Keyword: coastal processes
Place:
Place_Keyword_Thesaurus: Geographic Names Information Service (GNIS)
Place_Keyword: Chandeleur Islands
Place_Keyword: Louisiana
Place_Keyword: Breton Island
Place_Keyword: Grand Gosier Islands
Place_Keyword: Curlew Islands
Temporal:
Temporal_Keyword_Thesaurus: None
Temporal_Keyword: 2011
Access_Constraints: None
Use_Constraints:
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.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Karen L.M. Morgan
Contact_Organization: USGS
Contact_Position: Geologist
Contact_Address:
Address_Type: Physical and Mailing
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: (727) 502-8000
Contact_Electronic_Mail_Address: kmorgan@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description:
Map of survey area during USGS field activity 11CCH01. This file is also found in 11CCH01-LocationMaps.zip
Browse_Graphic_File_Type: JPEG
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description:
Maps showing the extent of each area and 5-minute segment can be found in the 11CCH01-LocationMaps.zip file. The maps in this survey are: 11CCH01-Map-Area01.jpg, Area 1 is from Chandeleur Islands, Louisiana, to Breton Island, Louisiana, and an inset map 11CCH01-Map-Inset01_Northbenchmark.jpg. The flight path, divided into 5-minute segments, is represented by the alternating purple and yellow lines.
Browse_Graphic_File_Type: JPEG
Data_Set_Credit:
Funding and support for this study were provided by the USGS Coastal and Marine Geology Program (CMGP). The authors wish to thank pilot Corey Miller for his 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.
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Best attempts were made to set the camera to UTC time on the GPS receivers at the beginning of each flight. 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.
Logical_Consistency_Report:
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 at Breton Island and the Chandeleur Islands, LA. This mission was flown on January 22, 2011, aboard a Cessna 210 aircraft, tail number N2272X.
Completeness_Report:
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. Crew members, contracted by the USGS in St. Petersburg, FL., included Karen Westphal (photography contractor) and pilot Corey Miller of Southern Seaplanes, Inc. Still photography was collected along the coast during this survey. GPS Data Collection—Instrument: Garmin GPSMAP 60CSx.Data Collection Interval: 2 Seconds. Data File Format: text, *.gdb, *gpx, *mps, *.dxf; Number of files created: 5 (Note: Only the text file is included in this data release).
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
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.
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 10
Horizontal_Positional_Accuracy_Explanation:
Garmin GPSMAP 60CSx accuracy is based on manufacturer specifications when available, accuracy value is provided in meters. 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.The GPS receiver used to provide navigation is accurate to within 10 meters (m). The GPS unit was used to record navigation fixes of the aircraft, not the position of the features imaged.
Lineage:
Process_Step:
Process_Description:
Image Acquisition: Images were taken with a Canon EOS Rebel T2i digital camera and written to internal camera cards. Image size is approximately 18 megapixels. Images in JPEG format were saved using the filename format yyyy_mmdd_hhmmssd.jpg (where the "d" signifies digital acquisition using the Canon EOS Rebel). The names provide information about the photograph's year, month, day, hour, minute, and second. For example, image 2011_0122_133636d.jpg was taken January 22, 2011, at 13:36:36 UTC. Best attempts were made to set the Canon EOS Rebel's internal clock to within 1 second of UTC at the beginning of the flight.
Process_Date: 20110122
Process_Step:
Process_Description:
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.
Process_Date: 20100730
Process_Step:
Process_Description:
The imagery in this release was divided into manageable sized (<250MB) zip files for ease of download and review. Subareas may be designed within those areas to conform to zip file size requirements for downloading.
Process_Date: 20171018
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Karen L.M. Morgan
Contact_Organization: USGS
Contact_Position: Geologist
Contact_Address:
Address_Type: Physical and Mailing
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: kmorgan@usgs.gov
Process_Step:
Process_Description:
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, 2017) as part of the post flight processing using a Perl script written by Karen Morgan, USGS, St. Petersburg, FL. ExifTool added the following data to the EXIFHeader: time of collection, GPS latitude, GPS longitude, keywords, credit, artist (photographer), caption, copyright, and contact information.
Process_Date: 20100730
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20201013
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Point
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: Point
Point_and_Vector_Object_Count: 6484
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.0197878497
Longitude_Resolution: 0.0227728255
Geographic_Coordinate_Units: Decimal Degrees
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: GRS 1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: 11CCH01-Flightpath.csv, 11CCH01-Photolocation.csv
Entity_Type_Definition:
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.
Entity_Type_Definition_Source: USGS
Attribute:
Attribute_Label: PHOTO_ID
Attribute_Definition:
Photograph identification number, using the filename format yyyy_mmdd_hhmmssd.jpg
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Oblique Images
Attribute:
Attribute_Label: URL
Attribute_Definition: Path to low resolution version of the image.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain:
Uniform Resource Locator (URL) path to the low-resolution images provided on the USGS Oblique Aerial Photography Viewer at https://coastal.er.usgs.gov/hurricanes/tools/oblique.php.
Attribute:
Attribute_Label: ZIPFILENAME
Attribute_Definition: Name of zip file containing the image.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Zipfile name.
Attribute:
Attribute_Label: LONGITUDE
Attribute_Definition: Longitude of photograph location, in decimal degrees (NAD83).
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: LATITUDE
Attribute_Definition: Latitude of photograph location, in decimal degrees (NAD83).
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: DATE_FLOWN
Attribute_Definition: Date images were captured, in yyyymmdd format.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Date defining the features.
Attribute:
Attribute_Label: TIME_UTC
Attribute_Definition:
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.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain: Time defining the features.
Attribute:
Attribute_Label: GEO_AREA
Attribute_Definition: The geographic area of the mission.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain:
States or regions partially covered in the oblique photographic mission.
Attribute:
Attribute_Label: STATES
Attribute_Definition: The states included in the survey area of the mission.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain:
States or regions partially covered in the oblique photographic mission.
Attribute:
Attribute_Label: SURVEY
Attribute_Definition:
USGS mission tracking number; also known as a field activity number.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain:
Mission number utilized by the USGS Coastal and Marine Geology program’s data catalog, Compass, to track survey details and associated data.
Attribute:
Attribute_Label: PRE_POST
Attribute_Definition:
Identifies the flight as being pre-storm (baseline) or post-storm.
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Pre
Enumerated_Domain_Value_Definition: Flight was prior to a storm.
Enumerated_Domain_Value_Definition_Source: USGS
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: Post
Enumerated_Domain_Value_Definition: Flight was after a storm.
Enumerated_Domain_Value_Definition_Source: USGS
Attribute:
Attribute_Label: STORM
Attribute_Definition:
If the flight was conducted due to a storm, the name of the storm is listed. Name of Storm (or Baseline).
Attribute_Definition_Source: USGS
Attribute_Domain_Values:
Unrepresentable_Domain:
The storm name is listed, if the flight was conducted pre- or post-storm, otherwise "Baseline" is entered.
Overview_Description:
Entity_and_Attribute_Overview:
Navigation files: The flightline navigation file is 11CCH01-Flightpath.csv, the photolocations are in 11CCH01-Photolocations.csv, and the raw GPS is in 11CCH01-RawGPSNav.txt, which is contained within the 11CCH01-RawGPSNav.zip file. These files can be found in the data download table. The files (.csv and .txt) are comma-delimited ASCII text files.
Entity_and_Attribute_Overview:
Navigation files: The flightline navigation file is 11CCH01-Flightpath.csv and the photolocations is 11CCH01-Photolocations.csv. These files can be found in https://doi.org/10.5066/F7WS8RCP. These files (*.csv) are comma-delimited.
Entity_and_Attribute_Detail_Citation: None
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Karen L.M. Morgan
Contact_Organization: USGS
Contact_Position: Geologist
Contact_Address:
Address_Type: Physical and Mailing
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: kmorgan@usgs.gov
Distribution_Liability:
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.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: CSV, JPEG, TXT, XML
Format_Information_Content:
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 text files containing the metadata and navigation data. XML: Extensible Markup Language formatted metadata files.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Access_Instructions: Available Online
Fees: None.
Metadata_Reference_Information:
Metadata_Date: 20201013
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Karen L.M. Morgan
Contact_Organization: USGS
Contact_Position: Geologist
Contact_Address:
Address_Type: Physical and Mailing
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: 727-502-8000
Contact_Electronic_Mail_Address: kmorgan@usgs.gov
Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

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