Location of bottom photographs along with images collected by the U.S. Geological Survey in 2015 along the Delmarva Peninsula, MD and VA (JPEG images and Esri point shapefile, Geographic, WGS 84)

Metadata also available as - [Outline] - [Parseable text]

Frequently anticipated questions:


What does this data set describe?

Title:
Location of bottom photographs along with images collected by the U.S. Geological Survey in 2015 along the Delmarva Peninsula, MD and VA (JPEG images and Esri point shapefile, Geographic, WGS 84)
Abstract:
The Delmarva Peninsula is a 220-kilometer-long headland, spit, and barrier island complex that was significantly affected by Hurricane Sandy in the fall of 2012. The U.S. Geological Survey conducted cruises during the summers of 2014 and 2015 to map the inner continental shelf of the Delmarva Peninsula using geophysical and sampling techniques to define the geologic framework that governs coastal system evolution at storm-event and longer timescales. Geophysical data collected during the cruises include swath bathymetric, sidescan sonar, chirp and boomer seismic reflection profiles, grab sample and bottom photograph data. More information about the USGS survey conducted as part of the Hurricane Sandy Response-- Geologic Framework and Coastal Vulnerability Study can be found at the project website or on the WHCMSC Field Activity Web pages: https://woodshole.er.usgs.gov/project-pages/delmarva/, https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-002-FA and https://cmgds.marine.usgs.gov/fan_info.php?fan=2015-001-FA. Data collected during the 2014 survey can be obtained here: https://doi.org/10.5066/F7MW2F60
  1. How might this data set be cited?
    U.S. Geological Survey, 2016, Location of bottom photographs along with images collected by the U.S. Geological Survey in 2015 along the Delmarva Peninsula, MD and VA (JPEG images and Esri point shapefile, Geographic, WGS 84): data release DOI:10.5066/F7P55KK3, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts.

    Online Links:

    This is part of the following larger work.

    Sweeney, Edward M., Pendleton, Elizabeth A., Ackerman, Seth D., Andrews, Brian D., Baldwin, Wayne E., Danforth, William W., Foster, David S., Thieler, E. Robert, and Brothers, Laura L., 2016, High-resolution geophysical data collected along the Delmarva Peninsula 2015, U.S. Geological Survey Field Activity 2015-001-FA: data release DOI:10.5066/F7P55KK3, U.S. Geological Survey, Reston, VA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -75.874755
    East_Bounding_Coordinate: -75.223799
    North_Bounding_Coordinate: 37.753817
    South_Bounding_Coordinate: 37.011527
  3. What does it look like?
    https://cmgds.marine.usgs.gov/data/field-activity-data/2015-001-FA/data/imagery/2015-001-FA_photos_browse.jpg (JPEG)
    Woods Hole Coastal and Marine Science Center 2015 bottom photograph locations along the Delmarva Peninsula.
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 14-Jul-2015
    Ending_Date: 16-Jul-2015Currentness_Reference:
    ground condition; sample and photo data were collected after geophysical data collection was complete.
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: vector and raster digital data
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • Entity point (235)
    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_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257224.
  7. How does the data set describe geographic features?
    2015-001-FA_photos
    Bottom photographs and locations (Source: U.S. Geological Survey)
    FID
    Internal feature number. (Source: Esri) Sequential unique whole numbers that are automatically generated.
    Shape
    Feature geometry. (Source: Esri) Coordinates defining the features.
    LONG
    Longitude in Geographic Coordinates, WGS 84. (Source: U.S. Geological Survey)
    Range of values
    Minimum:-75.874755
    Maximum:-75.223799
    Units:decimal degrees
    Resolution:0.00001
    LAT
    Latitude in Geographic Coordinates, WGS 84. (Source: U.S. Geological Survey)
    Range of values
    Minimum:37.011527
    Maximum:37.753817
    Units:decimal degrees
    Resolution:0.00001
    JD
    Julian day; Julian day is the integer number representing the interval of time in days since January 1 of the year (2015 for these data). (Source: U.S. Geological Survey)
    Range of values
    Minimum:195
    Maximum:197
    Units:days
    Resolution:1
    YEAR
    Year that the bottom photograph was collected (2015 for these data). (Source: U.S. Geological Survey)
    Range of values
    Minimum:2015
    Maximum:2015
    Units:years
    Resolution:1
    DATE
    Date that the bottom photograph was collected in the format: YYYYMMDD. (Source: U.S. Geological Survey)
    Range of values
    Minimum:20150714
    Maximum:20150716
    Units:date
    Resolution:1
    GPSTIME
    UTC time of bottom photograph collection from GPS navigation file in format HH:MM:SS. (Source: U.S. Geological Survey) UTC time of bottom photograph collection.
    PICNAME
    Name of bottom photograph used to uniquely identify between stations, cameras, and photographs: i.e. dl1_H2_14Jul_2100_G0024745, where dl1 refers to download number of when photos were downloaded off the camera, H2 refers to camera type (Hero 2), 14Jul refers to the date of the download, 2100 refers to the time of the download, and G0024745 refers to the sequential image number assigned to the image by the GoPro camera. (Source: U.S. Geological Survey) String used to distinguish photographs.
    CAMERA
    GoPro camera used to collect bottom photograph. (Source: U.S. Geological Survey) String used to distinguish between 2 GoPro cameras mounted on the SEABOSS Mark II.
    CAMR_TIME
    Camera time of bottom photograph collection from GoPro camera in format HH:MM:SS. (Source: U.S. Geological Survey) Camera time of bottom photograph collection.
    TIMEOFFSET
    Offset of camera time from GPS navigation UTC time in the format HH:MM:SS. (Source: U.S. Geological Survey) Offset time of bottom photograph collection.
    FIELD_NO
    Name of station ID that corresponds to photograph and sample locations: S stands for sample, followed by the number of the sample collected. (Source: U.S. Geological Survey) Character set
    CLASSIFICA
    Clastic sediment classification field (CLASSIFICA: based on Folk system) joined from the sample database to aide interpretations. (Source: U.S. Geological Survey)
    ValueDefinition
    CLAYEY SANDSediment whose main phase is sand, but with significant clay.
    GRAVELSediment whose main phase is greater than 2 mm.
    GRAVELLY SEDIMENTSediment whose main phase is greater than 2 mm, but with significant other sediment. Gravel greater than 10 percent.
    SANDSediment whose main phase is less than 2 mm, but greater than or equal to 0.0625 mm.
    SILTY SANDSediment whose main phase is sand, but with significant silt.
    CRUISE_ID
    WHCMSC field activity identifier (e.g. "2015-001-FA" where 2015 is the survey year, 001 is survey number of that year, and FA is Field Activity). (Source: U.S. Geological Survey) String used to distinguish cruises by year and ID number.
    DEVICE_ID
    Device used to collect the sample and bottom photograph. (Source: U.S. Geological Survey) String used to identify the SEABOSS configuration used during the survey.
    VEHICLE_ID
    Vehicle (ship) used to collect data during survey 2015-001-FA. (Source: U.S. Geological Survey) String used to identify the survey vessel.
    Entity_and_Attribute_Overview:
    The JPEG images can be hyperlinked to their shapefile location in ArcGIS.
    Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    Edward M. Sweeney
    U.S. Geological Survey
    Physical Scientist
    384 Woods Hole Road
    Woods Hole, Massachusetts
    USA

    508-548-8700 x2256 (voice)
    508-457-2310 (FAX)
    emsweeney@usgs.gov

Why was the data set created?

This dataset is used to display the images and locations of bottom photographs acquired with a GoPro modified, mid-sized SEABed OBservation and Sampling System (SEABOSS Mark II configuration) collected during a 2015 USGS cruise along the Delmarva Peninsula. The information contained within the bottom photographs is needed to validate geophysical data. This dataset contains seabed images from each bottom photograph station, as well as location in Geographic coordinates (WGS84), time of day and date of collection. Physical sediment samples, which provide additional information about the seabed, were also collected at photograph stations and analyzed in the sediment laboratory at the USGS Woods Hole Coastal and Marine Science Center (see shapefile 2015-001-FA_samples.shp available from the larger work citation).

How was the data set created?

  1. From what previous works were the data drawn?
    raw hypack nav and bottom photographs (source 1 of 1)
    U.S. Geological Survey, 2016, Bottom photographs and locations.

    Type_of_Source_Media: disc
    Source_Contribution:
    Bottom photographs and sediment samples were acquired to validate the seafloor interpretations made from geophysical data. Often sediment samplers are unable to recover large-diameter particles, so photographs can document the seafloor character in areas where samples may not be obtained. Two GoPro cameras were mounted to a USGS SEABOSS (Mark II configuration) with a modified VanVeen sampler frame. Approximate SEABOSS dimensions are 115 X 115 X 117 cm. The Van Veen sampler is housed at the bottom and center of the frame at approximately 30 X 32 X 16 cm with a 1/10 sq. meter sample capacity. Two red lasers were mounted on the frame above the sampler, 20 cm apart for scale in bottom photographs. A Keldan (Advanced Lighting Technology) light was mounted at the top of the frame and aimed downward to illuminate the seabed for photographs. Two GoPro cameras were mounted on the frame and set to capture photographs at 2 or 5 second intervals. The GoPro Hero 2 was mounted approximately 70 cm from the bottom of the SEABOSS frame and captured photographs at 2-second interval. The GoPro Hero 3+ was mounted approximately 20 cm from the bottom of the SEABOSS frame and captured video and photographs at 5-second interval. Because the frame was stationary on the bottom of the seabed only one photograph for each camera was chosen to represent the seafloor at each station location. Photographs collected in the water column, on the ship's deck, and duplicate photos of the seafloor were deleted. The Hero 2 field of view includes the Hero 3 GoPro (furthest to the right) and 2 instruments that were attached to the SEABOSS for additional data. The instrument to the left is a Suunto SK-7 dive compass, which shows the orientation of the SEABOSS. The digital readout to the right of the dive compass is the Uwatec dive timer, which shows 4 readouts: upper left is depth in meters, lower left is max depth in meters, upper right is dive time in minutes and lower right is temperature in Celsius (during ascent, this changes to ascent rate in meters per minute and shows an arrow when it senses the rate is too fast).
  2. How were the data generated, processed, and modified?
    Date: 20-Oct-2015 (process 1 of 8)
    DGPS and WAAS navigation for the Hemisphere receiver (located on the acquisition van) were logged in HYPACK software (versions 13.0.9.21 and 15.0.9.71). A python script called parseHYPACK_gui_sort_all.py (WHCMSC script) was used to search all HYPACK files from the sampling Julian days (JD 195-197) and pull out the GPGGA (nav) string (Device 0) and time and write out a parsed navigation file for all the sample and photograph stations. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Edward M. Sweeney
    Physical Scientist
    384 Woods Hole Rd.
    Woods Hole, MA

    508-548-8700 x2256 (voice)
    508-457-2310 (FAX)
    emsweeney@usgs.gov
    Date: 20-Oct-2015 (process 2 of 8)
    Time of bottom photograph was extracted from the "Date Picture Taken" attribute in the EXchangeable Image File format (EXIF) header of the quality JPEG bottom photograph using a python tool called: JPEG_exifextract_gui_sort.py (WHCMSC script). A separate picture time file was created for each camera, Hero 2 and Hero 3. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Edward M. Sweeney
    Physical Scientist
    384 Woods Hole Rd.
    Woods Hole, MA

    508-548-8700 x2256 (voice)
    508-457-2310 (FAX)
    emsweeney@usgs.gov
    Date: 20-Oct-2015 (process 3 of 8)
    Adjustments were made manually to the time picture taken file to account for time offsets between the time recorded in the JPEG EXIF "Date Picture Taken" attribute and the GPS time as verified by comparing calibration photos taken on the deck of the ship. Hero 2 was 31 minutes and 10 seconds behind GPS time, and the Hero 3+ was 1 second ahead of GPS time. To account for the time difference, an additional field was added to the photo 'time picture taken' file generated in the previous step. The new field of the time difference was populated using Microsoft Excel (version 2010) by auto-filling a linear series. The time difference is used for geolocating the photos in the subsequent processing step. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Edward M. Sweeney
    Physical Scientist
    384 Woods Hole Rd.
    Woods Hole, MA

    508-548-8700 x2256 (voice)
    508-457-2310 (FAX)
    emsweeney@usgs.gov
    Date: 20-Oct-2015 (process 4 of 8)
    An Esri shapefile was created by using a python script (photo_locs_gui_5exif.py, WHCMSC script) to join the bottom photo with the parsed HYPACK navigation file by matching the time offset field for Hero 2 photos (31 minutes, 10 seconds) and Hero 3+ photos (1 second) with the navigation file. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Edward M. Sweeney
    Physical Scientist
    384 Woods Hole Rd.
    Woods Hole, MA

    508-548-8700 x2256 (voice)
    508-457-2310 (FAX)
    emsweeney@usgs.gov
    Date: 16-Mar-2016 (process 5 of 8)
    Once the shapefile was created that joined the latitude and longitude from the HYPACK navigation with a photo from each station, some fields were deleted that were no longer needed including the camera time and time offset fields for Hero 2 and Hero 3. Several attributes were added in Esri ArcGIS (version 10.3.1) using the Spatial Join Tool. This tool was run with the sediment sample shapefile (containing sample analysis information) to assign a station name for the accompanying sediment sample (FIELD_NO) and also the sediment classification (Folk scheme) of the accompanying sediment sample (CLASSIFICA). Bottom photo and sediment sample locations are not exactly coincident as the ship drifted during the collection of bottom photos. Person who carried out this activity:
    U.S. Geological Survey
    Attn: Edward M. Sweeney
    Physical Scientist
    384 Woods Hole Rd.
    Woods Hole, MA

    508-548-8700 x2256 (voice)
    508-457-2310 (FAX)
    emsweeney@usgs.gov
    Date: 16-Mar-2016 (process 6 of 8)
    XTools Pro (version 12.0) for ArcGIS (version 10.3.1) was used to add new fields (TABLE OPERATIONS - TABLE RESTRUCTURE) to the point shapefile including an attribute for the survey ID (CRUISE_ID), device used to collect the photos and samples (DEVICE_ID), the survey vessel (VEHICLE_ID), and the Camera (CAMERA: either Hero 2 or Hero 3). Finally, the two separate camera shapefiles (Hero 2 and Hero 3) were merged into one shapefile using the ArcToolbox (version 10.3) MERGE tool (DATA MANAGEMENT TOOLS – GENERAL - MERGE). Person who carried out this activity:
    U.S. Geological Survey
    Attn: Edward M. Sweeney
    Physical Scientist
    384 Woods Hole Rd.
    Woods Hole, MA

    508-548-8700 x2256 (voice)
    508-457-2310 (FAX)
    emsweeney@usgs.gov
    Date: 16-Mar-2016 (process 7 of 8)
    The photo locations were exported from ArcMap (version 10.3.1) using XTools Pro (version 12.0) as a comma-delimited text file. The attributes chosen for export were: GPSTIME, PICNAME, LONG, LAT. Another column of information was added - yrdate - which had the year and date the photograph was taken in the format YYYYMMDD. This information was based on the Julian day in the shapefile. A Python version 2.7.3 script (writeexif_2_readfile_11_24_15.py, WHCMSC script) was then run that incorporated this information, along with additional information, into the appropriate locations in the EXIF header of each full-resolution JPEG image. The PYTHON script uses ExifTool (version 9.4.6.0) to write the information to the image headers of the full-resolution images. The following tags were populated in the JPEG image headers. Information is duplicated in some tags. This was done because different software packages access different tags.
    GPS tags: The values populated are unique for each image and based on the information exported from the photo locations shapefile.
    GPSLatitudeRef
    GPSLatitude
    GPSLongitudeRef
    GPSLongitude
    GPSTimeStamp
    GSPDateStamp
    
    
    JPEG tags: The tag is listed along with the information used to populate it - which is the same for every image taken with a particular camera. The following information is based on the GoPro Hero 2 camera.
    
    
    comment: Photo from down-looking GoPro HERO 2 camera on the USGS SEABOSS deployed from the M/V Scarlett Isabella during survey 2015-001-FA (http://cmgds.marine.usgs.gov/fan_info.php?fan=2015-001-FA). Released as part of publication DOI:10.5066/F7P55KK3.
    
    
    EXIF tags: The tag is listed along with the information used to populate it - which is the same for every image.
    
    
    ImageDescription: Photograph of the sea floor along the Delmarva Peninsula, MD and VA from survey 2015-001-FA
    Artist: USGS
    Copyright: Public Domain - please credit U.S. Geological Survey
    
    
    IPTC tags: The tag is listed along with the information used to populate it - which is the same for every image.
    Credit: U.S. Geological Survey
    Contact: emsweeney@usgs.gov
    Keywords: Bottom photo, Delmarva Peninsula, 2015-001-FA, SEABOSS, sea floor, USGS, GoPro HERO 2
    CopyrightNotice: Public Domain - please credit U.S. Geological Survey
    Caption-Abstract: Photograph of the sea floor along the Delmarva Peninsula, MD and VA from survey 2015-001-FA
    
    
    XMP tags: The tag is listed along with the information used to populate it - which is the same for every image.
    Caption: Photograph of the sea floor along the Delmarva Peninsula, MD and VA from survey 2015-001-FA
    
    
    To extract the information from the image headers using ExifTool, the following command can be used (tested with ExifTool version 9.4.6.0):
    
    
    exiftool.exe -csv -f -filename -GPSTimeStamp -GPSLongitude -GPSLatitude -n -Artist -Credit -comment -keywords -Caption -Copyright -CopyrightNotice -Caption-Abstract -ImageDescription photos/*.jpg > out.csv
    
    
    The -csv flag writes the information out in a comma-delimited format. The -n option formats the latitude and longitude as signed decimal degrees.
    
    
    The following tags are modified for the Hero 3 files.
    
    
    comment=Photo from down-looking GoPro HERO 3+ camera on the USGS SEABOSS deployed from the M/V Scarlett Isabella during survey 2015-001-FA (http://cmgds.marine.usgs.gov/fan_info.php?fan=2015-001-FA). Released as part of publication DOI:10.5066/F7P55KK3.
    
    
    keywords=Bottom photo, Delmarva Peninsula, 2015-001-FA, SEABOSS, sea floor, USGS, GoPro HERO 3+ Person who carried out this activity:
    U.S. Geological Survey
    Attn: Edward M. Sweeney
    Physical Scientist
    384 Woods Hole Rd.
    Woods Hole, MA

    508-548-8700 x2256 (voice)
    508-457-2310 (FAX)
    emsweeney@usgs.gov
    Date: 19-Apr-2017 (process 8 of 8)
    The online links to the data were updated to reflect the new server hosting the data. Additionally, other small edits could be made to the metadata, such as modifying http to https where appropriate. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. Person who carried out this activity:
    U.S. Geological Survey
    Attn: VeeAnn A. Cross
    Marine Geologist
    384 Woods Hole Road
    Woods Hole, MA

    508-548-8700 x2251 (voice)
    508-457-2310 (FAX)
    vatnipp@usgs.gov
  3. What similar or related data should the user be aware of?
    Pendleton, Elizabeth A., Ackerman, Seth D., Baldwin, Wayne E., Danforth, William W., Foster, David S., Thieler, E. Robert, and Brothers, Laura L., 2015, High-resolution geophysical data collected along the Delmarva Peninsula 2014, U.S. Geological Survey Field Activity 2014-002-FA: data release DOI:10.5066/F7MW2F60, U.S. Geological Survey, Reston, VA.

    Online Links:

    Blackwood, D., and Parolski, K., 2001, Seabed observation and sampling system: Sea Technology v. 42, no.2, p. 29-43, Compass Publications, Inc., Arlington, VA.

    Poppe, L.J., McMullen, K.Y., Williams, S.J., and Paskevich, V.F., 2014, USGS east-coast sediment analysis: Procedures, database, and GIS data: Open-File Report 2005-1001, U.S. Geological Survey, Reston, VA.

    Online Links:


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

  1. How well have the observations been checked?
    The GoPro Hero 2 HD camera used on the SEABOSS Mark II acquires photos at 11 Megapixels in JPEG quality of 98 percent, so file sizes are generally between 3 and 7 MB on disc, depending on seabed complexity. The GoPro Hero 3+ black camera used on the SEABOSS Mark II acquires photos at 12 Megapixels in JPEG quality of 80%, so file sizes are generally between 1 and 3 MB on disc. Image quality and photo interval was reduced for Hero 3+ to allow space on camera card for bottom video.
  2. How accurate are the geographic locations?
    Differential Global Positioning System (DGPS) and Wide Area Augmentation System (WAAS) enable GPS navigation data were acquired with a Hemisphere receiver and recorded with HYPACK software versions 13.0.9.21 and 15.0.9.71 (www.hypack.com). The recorded position of each bottom photograph is the position of the GPS antenna on the survey vessel acquisition van, not the SEABOSS sampler. The SEABOSS was deployed approximately 5 meters astern of the GPS antenna off the ship's A-fame on the stern of the ship. No layback or offset was applied to the recorded position. In addition to the plus or minus 5 m offset the SEABOSS may additionally drift away from the survey vessel when deployed to the seafloor. Based on the various sources of horizontal error, a conservative estimate of the horizontal accuracy of the bottom photograph location is 20-30 m.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    The best photograph from each camera is included at each station. Not every station has a photograph from both cameras. There is no bottom photograph collected for sample S_006. There are 235 bottom photos total: 121 photos from the Hero 2 and 114 photos from the Hero 3.
  5. How consistent are the relationships among the observations, including topology?
    All bottom photographs were acquired with the same 2 cameras; a GoPro Hero 2 HD (Hero 2) and a GoPro Hero 3+ black (Hero 3). Cameras were mounted on a mid-sized SEABOSS with a modified VanVeen Sampler. Gaps in sequential photo numbers exist because only the best photo per station was selected for publication (See source contribution for more information on camera settings and photograph timing). Some stations did not obtain a quality photo due to frame movement, or an unsettled (muddy) seabed. Of 125 sample stations, there are Hero 2 photos for 121 stations, and Hero 3 photos at 114 stations.

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:
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.
  1. Who distributes the data set? (Distributor 1 of 1)
    Edward M. Sweeney
    U.S. Geological Survey
    Physical Scientist
    384 Woods Hole Road
    Woods Hole, Massachusetts
    USA

    508-548-8700 x2256 (voice)
    508-457-2310 (FAX)
    emsweeney@usgs.gov
  2. What's the catalog number I need to order this data set? USGS data release 2015-001-FA contains bottom photograph locations and images (235 total images) of the seafloor collected from the Delmarva Peninsula area (2015-001-FA_photos.zip). The zip file contains the following shapefile: 2015-001-FA_photos.shp and seafloor photographs for each GoPro camera (Hero 2 and Hero 3+). A browse graphic of photo locations (2015-001-FA_photos_browse.jpg) and Federal Geographic Data Committee (FGDC) Content Standards for Digital Geospatial Metadata (CSDGM) metadata files (2015-001-FA_photos.xml) in four standard formats are also included in the zip file.
  3. What legal disclaimers am I supposed to read?
    Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  4. How can I download or order the data?
  5. What hardware or software do I need in order to use the data set?
    This zip file contains data available in point shapefile format. The user must have software capable of reading shapefile format to use these data. An image viewer can be used to see the JPEG images.

Who wrote the metadata?

Dates:
Last modified: 19-Apr-2017
Metadata author:
Edward M. Sweeney
U.S. Geological Survey
Physical Scientist
384 Woods Hole Road
Woods Hole, Massachusetts
USA

508-548-8700 x2256 (voice)
508-457-2310 (FAX)
emsweeney@usgs.gov
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

Generated by mp version 2.9.36 on Wed Apr 19 13:37:26 2017