Aerial video acquired during the UAS survey of the debris flow at South Fork Campground, Sequoia National Park, CA

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Frequently anticipated questions:

What does this data set describe?

Title:
Aerial video acquired during the UAS survey of the debris flow at South Fork Campground, Sequoia National Park, CA
Abstract:
This portion of the data release presents aerial video acquired during the uncrewed aerial systems (UAS) survey of the debris flow at South Fork Campground in Sequoia National Park, conducted under authorization from the National Park Service. The video shows low-altitude oblique and nadir perspectives of the lower 1.3 kilometers of the debris flow. The video is being included as part of the data release to provide additional context for the geohazards assessment of the area.
Supplemental_Information:
Additional information about the field activities from which these data were derived is available online at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=2024-629-FA
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  1. How might this data set be cited?
    Logan, Joshua B., East, Amy E., and Pearsall, Peter L., 20241219, Aerial video acquired during the UAS survey of the debris flow at South Fork Campground, Sequoia National Park, CA: data release DOI:10.5066/P144KDGN, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

    This is part of the following larger work.

    Logan, Joshua B., and East, Amy E., 2024, Aerial imagery and structure-from-motion derived data products from a UAS survey of the debris flow at South Fork Campground, Sequoia National Park, CA: data release DOI:10.5066/P144KDGN, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA.

    Online Links:

    Other_Citation_Details:
    Suggested Citation: Logan, J.B., East A.E., 2024, Aerial imagery and structure-from-motion derived data products from a UAS survey of the debris flow at South Fork Campground, Sequoia National Park, CA: U.S. Geological Survey data release, https://doi.org/10.5066/P144KDGN.
  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -118.76724
    East_Bounding_Coordinate: -118.75407
    North_Bounding_Coordinate: 36.35335
    South_Bounding_Coordinate: 36.33801
  3. What does it look like?
    https://www.sciencebase.gov/catalog/file/get/67412250d34e90d2c0e2dc78?name=SEKI_SouthFork_DebrisFlow_AerialVideo_browse.jpg&allowOpen=True (JPEG)
    Still frame from aerial video.
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 29-Apr-2024
    Currentness_Reference:
    ground condition at time data were collected
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: MP4
  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?
    SEKI_SouthFork_DebrisFlow_AerialVideo.mp4
    File in mp4 video format (Source: Producer defined)

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Joshua B. Logan
    • Amy E. East
    • Peter L. Pearsall
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    Attn: PCMSC Science Data Coordinator
    2885 Mission Street
    Santa Cruz, CA

    831-427-4747 (voice)
    pcmsc_data@usgs.gov

Why was the data set created?

This video is intended to be used to support a geohazards assessment for the South Fork Campground area of Sequoia National Park affected by debris flows in January 2023.

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: 2024 (process 1 of 2)
    Aerial video was acquired using a Department of Interior owned uncrewed aerial system (UAS). The UAS was used to acquire low-altitude video of the debris flow while conducting reconnaissance flights to plan flight paths for autonomous mapping missions. Person who carried out this activity:
    Joshua Logan
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    2885 Mission Street
    Santa Cruz, CA

    831-460-7519 (voice)
    jlogan@usgs.gov
    Date: 2024 (process 2 of 2)
    The aerial videos were edited and combined into a single video for distribution. Person who carried out this activity:
    Peter Pearsall
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    2885 Mission Street
    Santa Cruz, CA

    831-460-7418 (voice)
    ppearsall@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?
    No formal attribute accuracy tests were conducted nor necessary.
  2. How accurate are the geographic locations?
    Horizontal positional accuracy was not evaluated nor necessary for this data product.
  3. How accurate are the heights or depths?
    Vertical positional accuracy was not evaluated nor necessary for this data product.
  4. Where are the gaps in the data? What is missing?
    Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details.
  5. How consistent are the relationships among the observations, including topology?
    No formal logical accuracy tests were conducted nor necessary.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints No access constraints
Use_Constraints USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator(s) of the dataset and in products derived from these data. This information is not intended for navigation purposes.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey - ScienceBase
    Denver Federal Center, Building 810, Mail Stop 302
    Denver, CO
    United States

    1-888-275-8747 (voice)
    sciencebase@usgs.gov
  2. What's the catalog number I need to order this data set? The video is available in MP4 format.
  3. What legal disclaimers am I supposed to read?
    Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
  4. How can I download or order the data?
  5. What hardware or software do I need in order to use the data set?
    The downloadable data file is available in an mp4 format. The video can be viewed with software capable of playing mp4 files.

Who wrote the metadata?

Dates:
Last modified: 19-Dec-2024
Metadata author:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Attn: PCMSC Science Data Coordinator
2885 Mission Street
Santa Cruz, CA

831-427-4747 (voice)
pcmsc_data@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_P144KDGN/SEKI_SouthFork_DebrisFlow_AerialVideo_metadata.faq.html>
Generated by mp version 2.9.51 on Fri Dec 20 12:49:46 2024