Skokomish River orthophotos - 1938

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Puget Sound River History Project

Originator:

Department of Earth & Space Sciences, University of Washington, Box 351310

Originator: Seattle, WA 98195

Publication_Date: September, 2003

Title: Skokomish River orthophotos - 1938

Geospatial_Data_Presentation_Form: raster digital data

Description:

Abstract:

This dataset is part of a large collection of historical aerial photographs that were orthorectified. This set of photos was acquired from the Army Corps of Engineers, 4735 East Marginal Way South, Seattle, Washington 98134-2329. This image dataset was created from 43 individual photos (stored in TIFF format) which were orthorectified, mosaicked, and tiled into rectangular sections approximately 4900+ meters by 7000+ meters. (Sections are roughly the extents of slightly overlapping USGS Digital Ortho Quarter-quads found at <https://duff.ess.washington.edu/data/raster/doqs/>). Data does not necessarily fill each section completely.

Scale: approx. 1:10,000

Supplemental_Information:

Black and white photographs (approx 9" X 7" prints) were scanned at 600 pixels per inch, grayscale, and saved as TIFF files. Performed "Auto Levels" in Photoshop and used Photoshop to change all pixels of value 0,0,0 to 1,1,1 (to avoid dropout of 0,0,0 pixels when turning off display of background value 0 in ArcMap). Resulting TIFF images were then orthorectified using ERDAS Imagine's OrthoBASE module. Registration sources were USGS Digital Ortho Quarter-quads (<https://duff.ess.washington.edu/data/raster/doqs/>) and a USGS 10-meter DEM (<https://duff.ess.washington.edu/data/raster/tenmeter/byquad/>).

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1938

Currentness_Reference: 1938

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Data_Quality_Information:

Attribute_Accuracy:

Quantitative_Attribute_Accuracy_Assessment:

Completeness_Report:

Images cover the river bottoms and some of the adjacent uplands for the Skokomish River from the delta to approximately RM 11 on the North Fork and RM 13 on the South Fork.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Average mean square error for the X, Y, and Z coordinates of the control and tie points from ERDAS Imagine OrthoBASE Triangulation Report (measured in meters):

amX: 0.6059 amY: 0.6897 amZ: 3.0176

Average residual values for the X, Y, and Z control point coordinates from ERDAS Imagine OrthoBASE Triangulation Report (measured in meters):

aX: -0.1095 aY: 0.5986 aZ: 0.4478

Root mean square errors (standard deviation) of all X, Y, and Z from ERDAS Imagine OrthoBASE Triangulation Report (measured in meters):

mX: 1.0652 mY: 1.9287 mZ: 7.2158

Cloud_Cover: Negligible

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Pixel

Row_Count: 7000

Column_Count: 4900

Vertical_Count: 1

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 10

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column

Coordinate_Representation:

Planar_Distance_Units: meters

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1927

Ellipsoid_Name: Clarke 1866

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Charles Kiblinger

Contact_Organization: University of Washington

Contact_Position: Research Analyst

Contact_Address:

Address_Type: mailing address

Address: Univ. of Wash., Dept. Earth & Space Sci., Box 351310

City: Seattle

State_or_Province: WA

Postal_Code: 98195

Country: USA

Contact_Voice_Telephone: 206.685.7981

Contact_Facsimile_Telephone: 206.543.0489

Contact_Electronic_Mail_Address: cek@u.washington.edu

Resource_Description: Downloadable Data

Metadata_Reference_Information:

Metadata_Date: 20030926

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Charles Kiblinger

Contact_Organization: University of Washington

Contact_Position: Research Analyst

Contact_Address:

Address_Type: mailing address

Address: University of Washington, Box 351310

City: Seattle

State_or_Province: WA

Postal_Code: 98195-1310

Country: United States

Contact_Voice_Telephone: 206.685.7981

Contact_Facsimile_Telephone: 206.543.0489

Contact_Electronic_Mail_Address: cek@u.washington.edu

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Access_Constraints: None

Metadata_Use_Constraints: None

Metadata_Extensions:

Online_Linkage: <https://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile