River Channel Migration Areas (selected)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: King County
Publication_Date: 20050309
Title: River Channel Migration Areas (selected)
Edition: One
Geospatial_Data_Presentation_Form: vector digital data
Publication_Information:
Publication_Place: King County, WA
Publisher: King County
Other_Citation_Details: None
Description:
Abstract:
Channel migration hazards for four King County rivers: Raging River, Tolt River, Three Forks area of Snoqualmie River, and Green River.
Purpose:
This dataset can be use to estimate the channel migration for four rivers: Raging River, Tolt River, Three Forks area of Snoqualmie River, and Green River.
Supplemental_Information:
There are several rapidly migrating river systems in King County. Studies (cited below) have been prepared by or for the King County Department of Natural Resources to map and describe areas of channel migration hazard on sections of four rivers: the Raging River, Tolt River, Three Forks Area of the Snoqualmie River, and the Green River. In each study, the maximum probable future limits of channel migration were defined using historic meander belt widths and other geomorphic features. Land within these limits is classified according to the relative degree of hazard from channel migration, based upon historic rates of channel migration and the presence of major bank protection structures that protect arterial roads and subdivisions.
Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20021108
Currentness_Reference: publication date
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -122.238202
East_Bounding_Coordinate: -121.735862
North_Bounding_Coordinate: 47.678356
South_Bounding_Coordinate: 47.270134
Keywords:
Theme:
Theme_Keyword_Thesaurus: Not applicable
Theme_Keyword: hydro
Theme_Keyword: rivers
Theme_Keyword: migration
Theme_Keyword: channel
Place:
Place_Keyword_Thesaurus: Not applicable
Place_Keyword: King County, WA
Place_Keyword: Pacific NW
Place_Keyword: Washington state
Access_Constraints: None
Use_Constraints:
King County data are made available with the understanding that they shall be used exclusively by the obtainer or his/her authorized agents. Digital products may not be reproduced or redistributed in any form or by any means without the express written authorization of King County.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Ken Rauscher
Contact_Organization:
King County Dept. of Natural Resources and Parks, Water and Lands Resources Division
Contact_Position: GIS Analyst
Contact_Address:
Address_Type: Mailing and physical address
Address: 201 S Jackson St, Suite 600
City: Seattle
State_or_Province: WA
Postal_Code: 98104
Country: USA
Contact_Voice_Telephone: 206-296-1922
Browse_Graphic:
Browse_Graphic_File_Name:
<http://www.metrokc.gov/gis/sdc/content/internal/images/chnlmigr.jpg>
Browse_Graphic_File_Description:
JPG File of layer overlain on base of WA counties or local cities
Browse_Graphic_File_Type: JPG
Data_Set_Credit:
See also Ken Zweig, DNRP/WLRD/FLOOD - River Management Program, 206-296-6581 for more details.
Native_Data_Set_Environment:
Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: Unknown.
Logical_Consistency_Report:
This dataset meets standard coverage QA/QC checks such as labelerrors, nodeerrors.
Completeness_Report:
This dataset covers only the following areas of King County: Raging River, Tolt River, Three Forks area of Snoqualmie River, and Green River.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
CMZ boundaries typically have positional accuracy of 0-30 feet, in some areas with few control points such as eastern King County the positional accuracy could be as much as 50-100 feet. The data should not be reproduced or used at a scale larger than 1:2400.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: Shannon and Wilson
Publication_Date: 1991
Title:
Tolt and Raging Rivers Channel Migration Study, King County, Washington.
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1991
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: SW1991
Source_Contribution: Used in creating data.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Perkins, S.J
Publication_Date: 1993
Title: Green River Channel Migration Study
Other_Citation_Details:
King County Department of Public Works, Surface Water Management Division, Seattle WA
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1993
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: P1993
Source_Contribution: Used to create data.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Perkins, S.J
Publication_Date: 1996
Title:
Channel Migration in the Three Forks Area of the Snoqualmie River
Other_Citation_Details:
King County Department of Natural Resources, Surface Water Management Division, Seattle WA
Type_of_Source_Media: paper
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 1996
Source_Currentness_Reference: publication date
Source_Citation_Abbreviation: P1996
Source_Contribution: Used to create data.
Process_Step:
Process_Description: Unknown.
Process_Date: Unknown
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: G-polygon
Point_and_Vector_Object_Count: 160
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: Lambert Conformal Conic
Lambert_Conformal_Conic:
Standard_Parallel: 47.500000
Standard_Parallel: 48.733333
Longitude_of_Central_Meridian: -120.833333
Latitude_of_Projection_Origin: 47.000000
False_Easting: 1640416.666667
False_Northing: 0.000000
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.001000
Ordinate_Resolution: 0.001000
Planar_Distance_Units: survey feet
Geodetic_Model:
Horizontal_Datum_Name: D_North_American_1983_HARN
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257222
Vertical_Coordinate_System_Definition:
Altitude_System_Definition:
Altitude_Datum_Name: none
Altitude_Resolution: 1.000000
Altitude_Distance_Units: none
Altitude_Encoding_Method:
Explicit elevation coordinate included with horizontal coordinates
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: chnlmigr_area
Entity_Type_Definition: Feature attribute table.
Entity_Type_Definition_Source: ESRI
Attribute:
Attribute_Label: OBJECTID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: HAZARD
Attribute_Definition: Level of channel migration hazard.
Attribute_Definition_Source: King County
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: MODERATE
Enumerated_Domain_Value_Definition:
The moderate hazard area is located between the outer boundary of severe hazard and the maximum probable limits of future migration.
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: POTENTIAL
Enumerated_Domain_Value_Definition:
The area is not yet a channel migration zone, but could become one.
Enumerated_Domain_Value_Definition_Source: King County
Enumerated_Domain:
Enumerated_Domain_Value: SEVERE
Enumerated_Domain_Value_Definition:
The severe hazard area includes the width of the river channel itself plus a width equal to one hundred (100) years times the average annual channel migration rate. It is assumed that channel will migrate for fifty (50) years on both sides of the present channel location during this hundred year period.
Enumerated_Domain_Value_Definition_Source: King County
Attribute:
Attribute_Label: SHAPE
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: SHAPE.area
Attribute_Definition: Feature area in square feet.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Area values generated by software.
Attribute:
Attribute_Label: SHAPE.len
Attribute_Definition: Feature perimeter in feet.
Attribute_Definition_Source: ESRI
Attribute_Domain_Values:
Unrepresentable_Domain: Perimeter values generated by software.
Overview_Description:
Entity_and_Attribute_Overview:
This dataset is polygons depticting the severity of the Channel Migration hazard for the Raging River, Tolt River, Three Forks area of Snoqualmie River, and Green River.
Entity_and_Attribute_Detail_Citation: See Detailed Description section of Entity Attribute section.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Cheryl Wilder
Contact_Organization: KCGIS Center
Contact_Position: Data Sales Coordinator
Contact_Address:
Address_Type: Mailing and physical address
Address: 201 S Jackson St, Suite 700
City: Seattle
State_or_Province: WA
Postal_Code: 980914
Country: USA
Contact_Voice_Telephone: 206-263-5220
Resource_Description: /plibrary2/hydro/shapes/polygon/chnlmigr.shp
Distribution_Liability:
King County disclaims any warranty of use of any digital product or data beyond that for which it was designed.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: ESRI Shapefile
Transfer_Size: 0.180
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: \\Root\kclib\plibrary2\hydro\shapes\polygon\chnlmigr.shp
Offline_Option:
Offline_Media: Not available
Recording_Format: CD or DVD Read-only media, if offline
Fees:
Contact KCGIS Client Services for the cost of reproduction - <http://www.metrokc.gov/gis/services/index.htm>
Metadata_Reference_Information:
Metadata_Date: 20060428
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization:
King County Dept. of Natural Resources and Parks, Water and Lands Resources Division
Contact_Person: Ken Rauscher
Contact_Position: GIS Analyst
Contact_Address:
Address_Type: Mailing and physical address
Address: 201 S Jackson St, Suite 600
City: Seattle
State_or_Province: WA
Postal_Code: 98104
Country: USA
Contact_Voice_Telephone: 206-296-1922
Contact_Electronic_Mail_Address: firstname.lastname@metrokc.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
Metadata_Extensions:
Profile_Name: ESRI Metadata Profile
Generated by mp version 2.8.14 on Wed Aug 15 08:58:39 2007