Sammammish River orthophotos - 1936

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: Sammammish River orthophotos - 1936

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:

Army Corps of Engineers 4735 East Marginal Way South Seattle, WA 98134-2329

Flown by Pacific Aerial Surveys, dated July 15-25,1936.

This image dataset was created from 27 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 <http://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 (approximately 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 (<http://duff.ess.washington.edu/data/raster/doqs/>) and a USGS 10-meter DEM (<http://duff.ess.washington.edu/data/raster/tenmeter/byquad/>).

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1936

Currentness_Reference: 1936

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

 

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: River History

Theme_Keyword: historical mapping

Theme_Keyword: channel migration

Theme_Keyword: Puget Sound Rivers

Theme_Keyword: hydrology

Theme_Keyword: Sammammish River

Theme_Keyword: Aerial Photographs

Theme_Keyword: Historical Puget Sound Rivers Photographs

Theme_Keyword: Rivers

Place:

Place_Keyword: Washington

Place_Keyword: Washington State

Place_Keyword: Puget Sound Rivers

Place_Keyword: Pacific Northwest Rivers

Place_Keyword: Sammammish River

Temporal:

Temporal_Keyword: 1936

Access_Constraints:

This data may be freely downloaded and used. Please give credit to the Puget Sound River History Project, University of Washington.

Use_Constraints:

This data may be freely downloaded and used. Please give credit to the Puget Sound River History Project, University of Washington.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Collins

Contact_Organization: University of Washington

Contact_Position: Research Scientist

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: 206.616.6584

Contact_Facsimile_Telephone: 206.543.0489

Contact_Electronic_Mail_Address: bcollins@u.washington.edu

Browse_Graphic:

Browse_Graphic_File_Type: TIFF

Data_Set_Credit:

Brian Collins, Amir Sheikh, Harvey Greenberg, Charles Kiblinger, University of Washington, Seattle, WA

Security_Information:

Security_Classification: Unclassified

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.1 (Build 2600) Service Pack 1; ESRI ArcCatalog 8.3.0.800

Data_Quality_Information:

Attribute_Accuracy:

Quantitative_Attribute_Accuracy_Assessment:

Completeness_Report:

Images cover the river bottoms and some of the adjacent uplands for the Sammammish River from approximately Lake Sammammish to Lake Washington.

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: 1.2563 amY: 1.1286 amZ: 5.1931

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

aX: 1.5124 aY: -0.0901 aZ: -2.6280

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

mX: 18.9070 mY: 3.0939 mZ: 41.1829

 

Cloud_Cover: Negligible

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Pixel

Row_Count: 14000

Column_Count: 9800

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: D_North_American_1983_HARN

Ellipsoid_Name: Geodetic Reference System 80

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

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: TIFF

File_Decompression_Technique: Zip

Transfer_Size: 0.000

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://riverhistory.ess.washington.edu>

Metadata_Reference_Information:

Metadata_Date: 20040123

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: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile