Metadata: 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