Laboratory Observations of Artificial Sand and Oil Agglomerates: Video and Velocity Data: Sea Floor Interaction Experiment Preview Video (GoPro)

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Frequently anticipated questions:


What does this data set describe?

Title:
Laboratory Observations of Artificial Sand and Oil Agglomerates: Video and Velocity Data: Sea Floor Interaction Experiment Preview Video (GoPro)
Abstract:
Weathered oil in the surf-zone after an oil spill may mix with suspended sediments to form sand and oil agglomerates (SOA). Sand and oil agglomerates may form in mats on the scale of tens of meters (m), and may break apart into pieces between 1 and 10 centimeters (cm) in diameter. These more mobile pieces are susceptible to alongshore and cross-shore transport, and lead to beach re-oiling on the time scale of months to years following a spill. The U.S. Geological Survey (USGS) conducted experiments March 10 - 13, 2014, to expand the available data on sand and oil agglomerate motion; test shear stress based incipient motion parameterizations in a controlled, laboratory setting; and directly observe SOA exhumation and burial processes. Artificial sand and oil agglomerates (aSOA) were created and deployed in a small-oscillatory flow tunnel in two sets of experiments, during which, video and velocity data were obtained. The first experiment, which was set up to help researchers investigate incipient motion, used with an immobile, rough bottom (referred to as false-floor) and the second–testing seafloor interactions–utilized with a coarse grain sand bottom (movable sand bed). Detailed information regarding the creation of the aSOA can be found in Dalyander et al. (2015). More information about the USGS laboratory experiment conducted in collaboration with the Naval Research Laboratory can be found in the associated Open File Report (OFR Number Unknown).
Supplemental_Information:
This dataset (2017_309_DD_SFI_GoPro_preview.zip) contains previews of deployed GoPro video data collected during small-oscillatory flow tunnel laboratory experiments at the Naval Research Laboratory, Stennis Space Center, Stennis Mississippi. To ensure that SPCMSC data management protocols were followed, this survey was retroactively assigned a USGS field activity number (FAN), 2017-309-DD. Additional survey and data details are available at http://cmgds.marine.usgs.gov/fan_info.php?fan=2017-309-DD.
  1. How might this data set be cited?
    U.S. Geological Survey, 20170512, Laboratory Observations of Artificial Sand and Oil Agglomerates: Video and Velocity Data: Sea Floor Interaction Experiment Preview Video (GoPro): U.S. Geological Survey Data Release doi:10.5066/F76D5R69, U.S. Geological Survey, Coastal and Marine Geology Program, Saint Petersburg, FL.

    Online Links:

    This is part of the following larger work.

    Jenkins, Robert L. III, Dalyander, P. Soupy, Penko, Allison M., and Long, Joseph W., 2017, Laboratory Observations of Artificial Sand and Oil Agglomerates: Open-File Report 2018–1010, U.S. Geological Survey, Reston, VA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -89.651
    East_Bounding_Coordinate: -89.557
    North_Bounding_Coordinate: 30.395
    South_Bounding_Coordinate: 30.345
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 12-Mar-2014
    Ending_Date: 12-Mar-2014
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: video
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
    2. What coordinate system is used to represent geographic features?
  7. How does the data set describe geographic features?
    2017_309_DD_SFI_GoPro_preview
    Previews of deployed GoPro video data of sea floor interaction experiment. (Source: U.S. Geological Survey)
    VIDEO DATA
    Video observations of experiment segment. (Source: U.S. Geological Survey) This footage includes preview video clips (42–58 s duration) of the course grain sand bottom, moveable sand bed experiment that was recorded by a single GoPro camera for the period surrounding incipient motion.
    Entity_and_Attribute_Overview:
    The entity and attribute information provided here describes the data associated with the dataset. Please review the detailed descriptions that are provided (the individual attribute descriptions) for information on the values that appear as entries of the dataset.
    Entity_and_Attribute_Detail_Citation:
    The entity and attribute information was generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • U.S. Geological Survey
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    P. Soupy Dalyander
    U.S. Geological Survey
    Research Oceanographer
    600 Fourth Street South
    Saint Petersburg, Florida
    USA

    727-502-8124 (voice)
    727-502-8001 (FAX)
    sdalyander@usgs.gov

Why was the data set created?

This dataset includes 42–58 second (s) preview video clips of artificial sand and oil agglomerates acquired with a GoPro camera, during a sea floor interaction (SFI) experiment. The footage was collected during a 2014 USGS small-oscillatory flow tunnel experiment conducted at the Naval Research Laboratory, Stennis Mississippi. The information contained within the videos is needed to capture artificial sand and oil agglomerate incipient motion, and flow velocity at time of incipient motion, under ideal conditions, to test shear stress based incipient motion parameterizations. The information contained within the videos is also needed to capture exhumation and burial processes of artificial sand and oil agglomerates. Observed flow velocities, which provide additional information about aSOA incipient motion, were also collected during each experiment (see 2017_309_DD_SFI_velocity.zip) and are also included in this data release.

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: 10-Mar-2014 (process 1 of 5)
    In March, 2014, experiments were conducted at NRL’s Sediment Dynamics Laboratory, located in Stennis, MS. Artificial sand-oil agglomerates were deployed in the small-oscillatory flow tunnel with a cross-sectional area of 25 cm by 25 cm, a test bed length of 2-m, and a 35-cm deep sediment well. Oscillating currents (simulating bottom velocities generated by waves) were driven in the tank by a flywheel with variable frequencies (20-90 rpm) and stroke lengths (22, 33, or 44 cm). For all experiments, the oscillatory current had a slight asymmetry resulting in preferential transport downstream (toward the sediment trap) in the tank. Additional information on the characteristics and design of the flow tunnel can be found in Calantoni and others (2013). Person who carried out this activity:
    Robert L. Jenkins III
    U.S. Geological Survey
    Researcher III
    600 Fourth Street South
    Saint Petersburg, FL

    727-502-8138 (voice)
    727-502-8182 (FAX)
    rljenkins@usgs.gov
    Date: 10-Mar-2014 (process 2 of 5)
    The initial conditions of Experiment B were simply the final conditions of Experiment A (see aSOA_SFI_video_metadata.txt for details); the bed was not leveled. The aSOAs of ranging in diameter from 0.5 cm, 1 cm and 2.5 cm were deployed sitting proud on the sand bed. In addition to the GoPro camera, which was deployed in the trough of one bed ripple, two Canon 7D DSLR cameras captured footage of the aSOAS in 1080p HD video at 30 fps. Person who carried out this activity:
    Robert L. Jenkins III
    U.S. Geological Survey
    Researcher III
    600 Fourth Street South
    Saint Petersburg, FL

    727-502-8138 (voice)
    727-502-8182 (FAX)
    rljenkins@usgs.gov
    Date: 10-Mar-2014 (process 3 of 5)
    Videos were captured at 720p, 30 fps and saved in .mp4 file format by a single, unsecured, GoPro HD camera. Video recording was initiated manually, via GoPro wireless software, shortly after the flow tunnel fly-wheel motor was turned on. Person who carried out this activity:
    Robert L. Jenkins III
    U.S. Geological Survey
    Researcher III
    600 Fourth Street South
    Saint Petersburg, FL

    727-502-8138 (voice)
    727-502-8182 (FAX)
    rljenkins@usgs.gov
    Date: 16-Mar-2016 (process 4 of 5)
    Editing of the GoPro video data to exclude time periods when the field of view was obstructed by bed ripples, and file size reduction were handled in a single step, using free compression and video editing software, “Avidemux.” Person who carried out this activity:
    Robert L. Jenkins III
    U.S. Geological Survey
    Researcher III
    600 Fourth Street South
    Saint Petersburg, FL

    727-502-8138 (voice)
    727-502-8182 (FAX)
    rljenkins@usgs.gov
    Date: 30-Nov-2016 (process 5 of 5)
    Preview clips for each of the interpretive videos were also created using Avidemux software. Videos were loaded into the editing software and trimmed down to a clip, which showcased a preview of the video observations, 42 s to 58 s in duration. These preview clips were then compressed again to reduce the file size, and saved as an “.mp4” video file. Person who carried out this activity:
    Robert L. Jenkins III
    U.S. Geological Survey
    Researcher III
    600 Fourth Street South
    Saint Petersburg, FL

    727-502-8138 (voice)
    727-502-8182 (FAX)
    rljenkins@usgs.gov
  3. What similar or related data should the user be aware of?
    Calantoni, J., Landry, B. J., and Penko, A. M., 2013, Laboratory observations of sand ripple evolution using bimodal gran size distributions under asymmetric oscillatory flows: Journal of Coastal Research Special Issue No. 65, p. 1497-1502, Coastal Education and Research Foundation, Inc., Plymouth, United Kingdom.

    Online Links:

    Dalyander, P.S., Long, J.W., Plant, N.G., and Mclaughlin, M., 2015, Nearshore dynamics of artificial sand and oil agglomerates: Marine Pollution Bulletin v.96, p. 344-355, Elsevier, Ltd., Atlanta, GA, USA.

    Online Links:


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

  1. How well have the observations been checked?
    A single, unsecured, GoPro high-definition (HD) camera was deployed in the small oscillatory flow tunnel during Experiment B (see aSOA_SFI_video_metadata.txt for details) to provide a unique perspective of aSOA motion and sand bed evolution. The GoPro camera captured HD video, at 30 frames per second (fps). File sizes are generally between 500 MB and 4 GB on disc.
  2. How accurate are the geographic locations?
    A formal accuracy assessment of the horizontal positional information in the dataset has not been conducted.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    Preview video clips are presented for each of the three full length deployed GoPro videos contained in the zip file (2017_309_DD_SFI_GoPro_video.zip) also included in this data release.
  5. How consistent are the relationships among the observations, including topology?
    All GoPro videos were acquired with the same GoPro camera. The camera was not mounted or secured inside of the oscillatory flow tunnel.

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)
    Robert L. Jenkins III
    U.S. Geological Survey
    Researcher III
    600 Fourth Street South
    Saint Petersburg, Florida
    USA

    727-502-8138 (voice)
    727-502-8182 (FAX)
    rljenkins@usgs.gov
  2. What's the catalog number I need to order this data set? The zip file, 2017_309_DD_SFI_GoPro_preview.zip, contains the following MP4 video files: gp040050_preview.mp4, gp080050_preview.mp4, and gp090050_preview.mp4
  3. What legal disclaimers am I supposed to read?
    This digital 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: This dataset provides movable bed, sea floor interaction, deployed GoPro preview video data. Images were collected during small-oscillatory flow tunnel laboratory experiments at the Naval Research Laboratory, Stennis Space Center, Stennis Mississippi and includes the associated metadata. in format MP4 (version 1) Mpeg-4 video file Size: 18.2
      Network links: https://coastal.er.usgs.gov/data-release/doi-F76D5R69/data/2017_309_DD_SFI_GoPro_preview.zip
    • Cost to order the data: none

  5. What hardware or software do I need in order to use the data set?
    This zip file contains data available in mpeg-4 (MP4) video file format. The user must have software capable of reading .mp4 video file format to use these data.

Who wrote the metadata?

Dates:
Last modified: 19-Mar-2019
Metadata author:
Robert L. Jenkins III
U.S. Geological Survey
Researcher III
600 Fourth Street South
Saint Petersburg, Florida
USA

727-502-8138 (voice)
727-502-8182 (FAX)
rljenkins@usgs.gov
Metadata standard:
Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

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