Orthomosaic images of the middle and lower Elwha River, Washington, 2012 to 2017

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Andrew C Ritchie
Publication_Date: 2018
Title:

Orthomosaic images of the middle and lower Elwha River, Washington, 2012 to 2017

Geospatial_Data_Presentation_Form: 32-bit GeoTIFF digital files
Publication_Information:

Publication_Place:

Pacific Coastal and Marine Science Center, Santa Cruz, California

Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/F7PG1QWC
Larger_Work_Citation:

Citation_Information:

Originator: Andrew C Ritchie
Originator: Christopher A Curran
Originator: Christopher S Magirl
Originator: Jennifer A Bountry
Originator: Robert C Hilldale
Originator: Timothy J Randle
Originator: Jefferey J Duda
Publication_Date: 2018
Title:

Data in support of 5-year sediment budget and morphodynamic analysis of Elwha River following dam removals

Series_Information:

Series_Name: data release
Issue_Identification: doi:10.5066/F7PG1QWC

Publication_Information:

Publication_Place:

Pacific Coastal and Marine Science Center, Santa Cruz, California

Publisher: U.S. Geological Survey

Online_Linkage: https://doi.org/10.5066/F7PG1QWC

Description:

Abstract:

This dataset presents 28 georeferenced orthomosaic images of the middle and lower reaches of the Elwha River. Each mosaic image was created by stitching together thousands of individual photographs that were matched based on numerous unique tie points shared by the photographs. The individual photographs were taken by a plane-mounted camera during multiple flights over the study area spanning 2012 to 2017. Because each mosaic is orthogonal to the earth's surface and is georeferenced to real-world coordinates, changes to the river channel and surrounding morphology can be seen and measured, including channel width, river braiding, bar formation, and other metrics to assess responses of the river to the removal of two large dams upstream from the study area.

Purpose:

Data were obtained to assess the morphodynamic and sediment budget responses following the removal of two dams in 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 visible features.
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 2012
Ending_Date: 2016

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -123.568000
East_Bounding_Coordinate: -123.549187
North_Bounding_Coordinate: 48.1516437
South_Bounding_Coordinate: 48.0940000

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:5a035ecee4b0036f58f947cc

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: digital elevation models
Theme_Keyword: time series datasets
Theme_Keyword: river systems
Theme_Keyword: river reaches
Theme_Keyword: field inventory and monitoring
Theme_Keyword: lidar
Theme_Keyword: image collections
Theme_Keyword: image mosaics
Theme_Keyword: topographic maps
Theme_Keyword: aerial photography
Theme_Keyword: remote sensing

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: river channel
Theme_Keyword: river bank
Theme_Keyword: sediment deposition

Theme:

Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Substrate

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: inlandWaters

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: Pacific Coastal and Marine Science Center
Theme_Keyword: PCMSC
Theme_Keyword: U.S. Bureau of Reclamation
Theme_Keyword: USBR
Theme_Keyword: National Park Service
Theme_Keyword: NPS

Place:

Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: Elwha River
Place_Keyword: Elwha Dam (historical)
Place_Keyword: Glines Canyon Dam (historical)
Place_Keyword: Olympic National Park
Place_Keyword: Lake Aldwell (historical)
Place_Keyword: Lake Mills (historical)
Place_Keyword: State of Washington

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 (USGS) as the originators of the dataset and in products derived from these data.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Andrew C Ritchie
Contact_Organization:

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

Contact_Address:

Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Country: United States

Contact_Voice_Telephone: 831-460-7454
Contact_Electronic_Mail_Address: aritchie@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name:

https://www.sciencebase.gov/catalog/file/get/5a035ecee4b0036f58f947cc?name=ElwhaOrthomosaic.png&allowOpen=true

Browse_Graphic_File_Description: Low-resolution sample orthomosaic.
Browse_Graphic_File_Type: PNG

Data_Set_Credit:

Data collection was funded by U.S. Geological Survey and National Park Service

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report: No formal attribute accuracy tests were conducted

Logical_Consistency_Report: No formal logical accuracy tests were conducted.
Completeness_Report:

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.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report: Horizontal positional accuracy is within 0.025 meters.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report: Vertical positional accuracy is within 0.05 meters.

Lineage:

Process_Step:

Process_Description:

Image collection: Images collected before Nov 2014 were collected with a single Canon D10 using firmware hacked with CHDK and running an intervalometer script written in Lua. Until Mar 2016 they were flown with a D10 and a Ricoh GR, and after March they were done with two Ricoh GR cameras. Cameras were mounted in a customized wing mount and flown in four flight lines with a Cessna 172 at elevations between 1,500 and 2,000 feet above ground level. Image locations were established by matching features in some images with ground control points (GCPs). GCP locations were measured using either a RTK base station or a WSRN network fix using a TopCon GRS-1, Trimble R8 or Trimble R10 receiver. Occupation times were generally 180 seconds and estimated accuracy is 5 cm vertical, 2.5 cm horizontal.

Process_Date: 2016

Process_Step:

Process_Description:

Orthomosaic creation: Images were aligned using PhotoScan software (Agisoft, LLC). PhotoScan aligns images based on tie points shared between multiple images and scales the resultant 3D surface based on perspective differences between individual images. Geographic location and elevation are introduced to the surface model using the GCP locations in the model. PhotoScan exports an orthomosaic image by converting the 3D surface model into an orthogonal 2D surface. Pixel values for the orthomosaics in this dataset were blended using a weighted average of all pixel values from all the images used.

Process_Date: 2017

Process_Step:

Process_Description:

Each orthomosaic was tiled with tile dimensions 256 by 256 pixels and compressed at 90% using JPEG compression and YCbCr color space.

Process_Date: 2017

Process_Step:

Process_Description:

Corrected name of theme keyword thesaurus from ISO 19115 Topic Categories to Category.

Process_Date: 20180717
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Susan A Cochran
Contact_Organization:

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

Contact_Address:

Address_Type: mailing and physical
Address: 2885 Mission St.
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Country: United States

Contact_Voice_Telephone: 831-460-7545
Contact_Electronic_Mail_Address: scochran@usgs.gov

Process_Step:

Process_Description:

Edited metadata to add keywords section with USGS persistent identifier as theme keyword. No data were changed.

Process_Date: 20201019
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross

Contact_Position: Marine Geologist
Contact_Address:

Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598

Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@usgs.gov

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference: Data were collected over the Elwha River, Washington.
Direct_Spatial_Reference_Method: Raster

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 1.5E-6
Longitude_Resolution: 1.5E-6
Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name:

North American Datum of 1983 National Spatial Reference System 2007

Ellipsoid_Name: Geodetic Reference System 80 (GRS80)
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.26

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Three-band GeoTIFF image.
Entity_Type_Definition:

Pixel based raster matrix with 3 layers of information for each pixel. The filename for each image is formatted as "date_Elwha_reach.tif", where date is the date the images were collected (in YYYYMMDD format), and reach is either LR or MR ("lower reach" or "middle reach," respectively).

Entity_Type_Definition_Source: Other

Attribute:

Attribute_Label: Band_1
Attribute_Definition: Red wavelength band.
Attribute_Definition_Source: Agisoft Photoscan
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 255

Attribute:

Attribute_Label: Band_2
Attribute_Definition: Green wavelength band.
Attribute_Definition_Source: Agisoft Photoscan
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 255

Attribute:

Attribute_Label: Band_3
Attribute_Definition: Blue wavelength band.
Attribute_Definition_Source: Agisoft Photoscan.
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 255

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey - ScienceBase

Contact_Address:

Address_Type: mailing and physical
Address: Denver Federal Center, Building 810, Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: United States

Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov

Resource_Description:

data are downloadable in .zip format (Elwha_Orthos_2012to2017.zip) along with CMGDS FGDC-compliant metadata.

Distribution_Liability:

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.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: TIFF
Format_Version_Number: ESRI ArcGIS 10.4 on Windows 7
Format_Specification:

zip file contains the GeoTIFF rasters, associated world files, and metadata

Transfer_Size: 10.66

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/5a035ecee4b0036f58f947cc

Network_Resource_Name: https://doi.org/10.5066/F7PG1QWC

Access_Instructions: Data can be downloaded via the Internet

Fees: None.

Technical_Prerequisites:

This zip file contains GeoTIFF files and can be uncompressed with any unzipping software, such as WinZip. The GeoTIFF files can be viewed in geographic information system (GIS) software as a geographically located digital elevation model.

Metadata_Reference_Information:

Metadata_Date: 20201019
Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Andrew C Ritchie
Contact_Organization:

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

Contact_Address:

Address_Type: mailing and physical
Address: 2885 Mission Street
City: Santa Cruz
State_or_Province: CA
Postal_Code: 95060
Country: United States

Contact_Voice_Telephone: 831-460-7454
Contact_Electronic_Mail_Address: aritchie@usgs.gov

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_F7PG1QWC/Elwha_Orthos_2012to2017.html>