Aerial photomosaic of John Day Reservoir, 1966

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Frequently anticipated questions:


What does this data set describe?

Title: Aerial photomosaic of John Day Reservoir, 1966
Abstract:
A two-week field operation was conducted in the John Day Reservoir on the Columbia River to image the floor of the pool, to measure the distribution and thickness of post-impoundment sediment, and to verify these geophysical data with video photography and bottom sediment samples. The field program was a cooperative effort between the USGS Coastal and Marine Geology Team of the Geologic Division and the USGS Columbia River Research Laboratory of the Biological Resources Division. The data collection was completed aboard the R/V ESTERO during September 13-27, 2000. The interest in sediment accumulation in the reservoir was two-fold. First, it was unknown how effective this reservoir was as a sediment trap to material that otherwise would have been transported down-river to the estuary and eventually to the ocean. The recent erosion of beaches along the Washington coast has been attributed to a decreased contribution of sediment from the Columbia River to the coastal system due to the damming of the river. Second, sediment accumulation on the floors of reservoirs along the Columbia River has been suggested to be diminishing salmon spawning grounds. The extent of changes in habitat since construction of the John Day Dam, however, had not been documented. Common data sets were needed to address both of these questions, and for these reasons this geophysical and sampling program was undertaken.
Supplemental_Information:
For more information about the field activity, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2000-030-FA.
  1. How might this data set be cited?
    Cross, VeeAnn A., and Twichell, David C., 2004, Aerial photomosaic of John Day Reservoir, 1966: Open-File Report 2004-1014, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Coastal and Marine Science Center, Woods Hole, MA.

    Online Links:

    This is part of the following larger work.

    Cross, VeeAnn A., and Twichell, David C., 2004, Geophysical, Sedimentologic, and Photographic Data from the John Day Reservoir, Washington and Oregon: Data Archive and Preliminary Discussion: Open-File Report 2004-1014, U.S. Geological Survey, Reston, VA.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -120.75
    East_Bounding_Coordinate: -119.25
    North_Bounding_Coordinate: 46
    South_Bounding_Coordinate: 45.5
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Calendar_Date: 1966
    Currentness_Reference:
    ground condition
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: 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 Raster data set.
    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 0.000018024676. Longitudes are given to the nearest 0.000022279724. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is North American Datum of 1983.
      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: The pixel value is grayscale color code.
    Entity_and_Attribute_Detail_Citation: None.

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • VeeAnn A. Cross
    • David C. Twichell
  2. Who also contributed to the data set?
    Appropriate credit should be given to the USGS, Upper Midwest Environmental Sciences Center, for the original mosaicking of the images.
  3. To whom should users address questions about the data?
    VeeAnn A. Cross
    U.S. Geological Survey
    Marine Geologist
    384 Woods Hole Rd.
    Woods Hole, MA

    (508) 548-8700 x2251 (voice)
    (508) 457-2310 (FAX)
    vatnipp@usgs.gov

Why was the data set created?

This data set was originally created for the John Day Reservoir Decision Support System by the Biological Resources Division in Cook, Washington. These data are provided here as basemap information indicating pre-impoundment features in John Day Reservoir.

How was the data set created?

  1. From what previous works were the data drawn?
    Information unavailable from original metadata. (source 1 of 1)
    Columbia River Research Laboratory, Western Fisheries Research Center, Biological Resources Division, U.S. Geological Survey, 1999, A Digital Atlas for John Day Reservoir: Biological Resources Division, U.S. Geological Survey, Cook, WA.

    Type_of_Source_Media: CD-ROM
    Source_Contribution:
    The original sources from which this data set was derived are orthophotographs of John Day Reservoir taken in 1966. The USGS, Upper Midwest Environmental Sciences Center, digitized the photographs, resampled the images at 6 ft horizontal resolution, and mosaiced them into one image. The image has been converted to MrSid format (.sid). The original photographs were borrowed from the USFWS, Portland, OR.
  2. How were the data generated, processed, and modified?
    Date: 01-Jul-1999 (process 1 of 8)
    WARNING: THIS IS NOT THE OFFICIAL METADATA RECORD FOR THE SOURCE DATA, but merely describes from where the source data set was acquired and any post-processing that may have been done by the USGS/BRD/CRRL. The original sources from which this data set was derived are orthophotographs of John Day Reservoir taken in 1966. The USGS, Upper Midwest Environmental Sciences Center, digitized the photographs, resampled the images at 6 ft horizontal resolution, and mosaiced them into one image. The image has been converted to MrSid format (.sid). The original photographs were borrowed from the USFWS, Portland, OR. Person who carried out this activity:
    David E. Rupp
    U.S. Geological Survey, Biological Resources Division, Western Fisheries Research Center, Columbia River Research Laboratory
    Interdisciplinary Hydrologist
    5501-A Cook-Underwood Rd
    Cook, Washington
    USA

    509 538 2299 (voice)
    509 538 2843 (FAX)
    David_Rupp@usgs.gov
    Hours_of_Service: 8:00 a.m. to 4:00 p.m. Monday Through Friday
    Date: 2000 (process 2 of 8)
    The original Mr. Sid image was exported to a GeoTiff image using MrSid GeoViewer version 2.1 Person who carried out this activity:
    VeeAnn A. Cross
    U.S. Geological Survey
    Marine Geologist
    384 Woods Hole Rd.
    Woods Hole, MA

    (508) 548-8700 x2251 (voice)
    (508) 457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 2000 (process 3 of 8)
    The GeoTIFF image was then reprojected to geographic, NAD83 using BlueMarble Geographic Transformer. Person who carried out this activity:
    VeeAnn A. Cross
    U.S. Geological Survey
    Marine Geologist
    384 Woods Hole Rd.
    Woods Hole, MA

    (508) 548-8700 x2251 (voice)
    (508) 457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 2000 (process 4 of 8)
    The reprojected image was then compressed to a MrSid image using LizardTech's MrSid Geospatial Encoder version 1.4. Person who carried out this activity:
    VeeAnn A. Cross
    U.S. Geological Survey
    Marine Geologist
    384 Woods Hole Rd.
    Woods Hole, MA

    (508) 548-8700 x2251 (voice)
    (508) 457-2310 (FAX)
    vatnipp@usgs.gov
    Date: 06-Dec-2017 (process 5 of 8)
    Edits to the metadata were made to fix any errors that MP v 2.9.36 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). Added the link to the data catalog page in the Identification section, and a link to the publication in the Larger Work Citation. Added online link to the data in the Distribution section. Added a link to the field activity. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent. 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
    Date: 20-Jul-2018 (process 6 of 8)
    USGS Thesaurus keywords added to the keyword section. 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
    Date: 18-Nov-2019 (process 7 of 8)
    Crossref DOI link was added as the first link in the metadata. 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
    Date: 08-Sep-2020 (process 8 of 8)
    Added keywords section with USGS persistent identifier as theme keyword. 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?

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

  1. How well have the observations been checked?
    No report
  2. How accurate are the geographic locations?
    No report.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    Coverage of the John Day reservoir is complete.
  5. How consistent are the relationships among the observations, including topology?
    No report

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: None
  1. Who distributes the data set? (Distributor 1 of 1)
    VeeAnn A. Cross
    U.S. Geological Survey
    Marine Geologist
    384 Woods Hole Rd.
    Woods Hole, MA

    (508) 548-8700 x2251 (voice)
    (508) 457-2310 (FAX)
    vatnipp@usgs.gov
  2. What's the catalog number I need to order this data set?
  3. What legal disclaimers am I supposed to read?
    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 accuracy 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. This disclaimer applies both to individual use of the data and aggregate use with other data. It is strongly recommended that these data are directly acquired from a U.S. Geological Survey server, and not indirectly through other sources which may have changed the data in some way. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.
  4. How can I download or order the data?

Who wrote the metadata?

Dates:
Last modified: 08-Sep-2020
Metadata author:
VeeAnn A. Cross
U.S. Geological Survey
Marine Geologist
384 Woods Hole Rd.
Woods Hole, MA

(508) 548-8700 x2251 (voice)
(508) 457-2310 (FAX)
vatnipp@usgs.gov
Metadata standard:
NBII Content Standard for National Biological Information Infrastructure Metadata (FGDC-STD-001-1998)

This page is <https://cmgds.marine.usgs.gov/catalog/whcmsc/open_file_report/ofr2004-1014/photo66_4mmeta.faq.html>
Generated by mp version 2.9.50 on Tue Sep 21 18:20:19 2021