Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington

Frequently anticipated questions:

• What does this data set describe?
  1. How might this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  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?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

What does this data set describe?

1. How might this data set be cited?
   Stevens, Andrew W., Gelfenbaum, Guy, Warrick, Jonathan A., Miller, Ian M., and Weiner, Heather M., 2017, Bathymetry, topography, and sediment grain-size data from the Elwha River delta, Washington: data release DOI:10.5066/F72N51GC, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

   Online Links:

   • https://doi.org/10.5066/F72N51GC
   • https://www.sciencebase.gov/catalog/item/5a01f6d0e4b0531197b72cfe

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -123.644039
   East_Bounding_Coordinate: -123.389513
   North_Bounding_Coordinate: 48.171073
   South_Bounding_Coordinate: 48.124617
   

3. What does it look like?

   https://www.sciencebase.gov/catalog/file/get/5a01f6d0e4b0531197b72cfe?name=ew_survey_methods.png&allowOpen=true (PNG)

   Photographs showing equipment used during bathymetry, topography, and sediment grain-size surveys on the Elwha River delta, Washington showing A) personal watercraft, and B) kayak each equipped with global navigation satellite system (GNSS) receivers and single-beam echosounders, C) GNSS receiver mounted on a backpack, D) GNSS base station, E) collection of surface sediment sample with a grab sampler, and F) sampling sediment from grab sample.

4. Does the data set describe conditions during a particular time period?

   Beginning_Date: 05-Sep-2010

   Ending_Date: 22-Jul-2017

   Currentness_Reference:

   ground condition at time data were collected

5. What is the general form of this data set?

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?

Who produced the data set?

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Andrew W. Stevens
   • Guy Gelfenbaum
   • Jonathan A. Warrick
   • Ian M. Miller
   • Heather M. Weiner
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?

Data were obtained to assess the coastal geomorphic response following the removal of two dams on the Elwha River. These data are intended for science researchers, students, policy makers, and the general public. These data can be used with geographic information systems or other software to identify topographic and shallow-water bathymetric features.

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: 13-Nov-2017 (process 1 of 5)

   A web page was developed to tie together previously published bathymetry, topography, and surface-sediment grain-size data collected on the Elwha River delta, Washington under one digital object identifier. This data release contains bathymetry and topography data from surveys performed on the Elwha River delta between 2010 and 2016. Sediment grain-size data are available for selected surveys performed after May 2012. This data release will be updated as additional bathymetry, topography, and surface-sediment grain-size data from future surveys become available.

   Date: 21-May-2019 (process 2 of 5)

   The recently published data release (https://doi.org/10.5066/P9AJ8ALB) for data collected in July 2017 was moved under this umbrella page. Line 1 in paragraph 2 of the ScienceBase page Summary section was updated, and a line for this data release was added to Table 1. The USGS Field Activity Number (FAN) was added to the Supplemental Information section of this metadata file, and the Keywords, Point of Contact, and Metadata Contact sections were updated to current PCMSC standards. Person who carried out this activity:
   

   Susan A Cochran

   U.S. Geological Survey, Pacific Coastal and Marine Science Center

   2885 Mission St.

   Santa Cruz, CA
   

   United States

   831-460-7545 (voice)

   scochran@usgs.gov

   Date: 20-Jun-2019 (process 3 of 5)

   Spelling correction was made to a keyword. Person who carried out this activity:
   

   Susan A Cochran

   U.S. Geological Survey, Pacific Coastal and Marine Science Center

   2885 Mission St.

   Santa Cruz, CA
   

   United States

   831-460-7545 (voice)

   scochran@usgs.gov

   Date: 19-Oct-2020 (process 4 of 5)

   Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed. 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: 13-Oct-2021 (process 5 of 5)

   Performed minor edits to the metadata to correct typos. No data were changed Person who carried out this activity:
   

   U.S. Geological Survey

   Attn: Susan A. Cochran

   Geologist

   2885 Mission Street

   Santa Cruz, CA
   

   831-460-7545 (voice)

   scochran@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 are applicable for this web page.
2. How accurate are the geographic locations?
   A formal accuracy assessment of the horizontal positional information in the data set has either not been conducted, or is not applicable.
3. How accurate are the heights or depths?
   A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable.
4. Where are the gaps in the data? What is missing?
   Data set 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 are applicable for this web page.

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:

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 navigational purposes.

1. Who distributes the data set? (Distributor 1 of 1)
   
   U.S. Geological Survey - Science Base

   U.S. Geological Survey

   Denver Federal Center, Building 810, Mail Stop 302

   Denver, CO
   

   USA

   1-888-275-8747 (voice)

   sciencebase@usgs.gov
2. What's the catalog number I need to order this data set?
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?

Who wrote the metadata?

Dates:

Last modified: 13-Oct-2021

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)