King County 2001 Landsat TM Change Detection: lcchg_wet

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: King County
Publication_Date: 20020621

Title:
King County 2001 Landsat TM Change Detection: lcchg_wet

Edition: 1.0

Geospatial_Data_Presentation_Form: Raster digital data
Publication_Information:
Publication_Place: King County, WA
Publisher: King County
Other_Citation_Details:
This digital data was created by Marshall and Associates, Inc,under contract to King County, contract number: T01393.

Marshall and Associates 1603 Cooper Point Rd NW Olympia, WA 98502-8325

Online_Linkage: None
Description:
Abstract:
Data set is landcover change interpretation generated from 1992 Landsat 5 and 2001 Landsat 7 TM scenes. The scene path/row was Path 46, Row 27. The scenes were clipped to a bounding box that encompassed the extent of King County and Southwestern Snohomish County. One grid was produced, depicting cells changed from Wet Areas to other classes (lcchg_wet). The wet area change detection utilized a landcover classification from 1992 provided by King County. The change dataset was generated with a simple categorical change technique.
Purpose:
The landcover interpretation was created to provide an up-to-date landcover interpretation for the project area. The classification scheme was devised considering various county-wide mandates affecting multiple departments.

Primary drivers for the classification schema and effort are implementation of Endangered Species Act mandates, buildable lands definition and sensitive areas mitigation.

Supplemental_Information:
This landcover change detection was created by Marshall and Associates, Inc. as part of a multiple part effort to interpret impervious surface categories from high-resolution multispectral imagery.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1992
Ending_Date: 20010811

Currentness_Reference: TM Scene date, 20010811

Status:
Progress: Complete

Maintenance_and_Update_Frequency: None Planned

Spatial_Domain:
Description_of_Geographic_Extent:
WRIA 8
Bounding_Coordinates:
West_Bounding_Coordinate: -122.56
East_Bounding_Coordinate: -121.04
North_Bounding_Coordinate: +47.97
South_Bounding_Coordinate: +47.06
Keywords:
Theme:
Theme_Keyword_Thesaurus: Not applicable
Theme_Keyword: Landcover Change Detection

Theme_Keyword: Wet areas

Place:
Place_Keyword_Thesaurus: Not applicable
Place_Keyword: United States
Place_Keyword: Washington
Place_Keyword: WA
Place_Keyword: State of Washington
Place_Keyword: Pacific Northwest
Place_Keyword: Pacific NW
Place_Keyword: Puget Sound Lowlands
Place_Keyword: Western Cascade Mountains
Place_Keyword: King County
Place_Keyword: Snohomish County

Access_Constraints:
Online access is restricted to authenticated King County users Others may access the data through KC GIS Center Client Services.

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 produce may not be reproduced or redistributed in any form or by any means without the express written authorization of King Co. GIS Center. This dataset is not accurate enough to support parcel level analyses and mapping. It is suitable for watershed level uses only.

No Representations Marshall and Associates, Inc. (hereinafter MARSHALL) and its supplier make no representations or warranties with respect to any imagery or products derived from imagery supplied to a Client with the exception of those specified in a legal contract agreed upon both by MARSHALL and the Client.

Limited Warranty The Client shall indemnify and hold harmless MARSHALL and its supplier from any circumstances that arise from the use of imagery or information supplied by MARSHALL for any other purpose or use besides that expressly outlined in the MARSHALL /Client contract

Limitation of Liability Neither MARSHALL nor its supplier, their affiliates, officers, directors, shareholders, agents, and employees shall be liable for any loss or damage suffered by the Client, or any party claiming through the Client, as a result of or related to the provision by MARSHALL of any data, information, or images.

Reselling and Distributing Data The Client shall not resell to any third party any data, information, or images provided by MARSHALL unless the Client obtains from such third party a disclaimer of representations and a confirmation of limitations of liability and the Client shall ensure that MARSHALL and its supplier is a beneficiary of such disclaimers and limitations (even if only indirectly named as a supplier of the data, information, or images). The Client shall indemnify and hold harmless MARSHALL and its supplier from and against any claims made by third parties to whom the Client resells the data, information, or images supplied by MARSHALL.

Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Mike Leathers

Contact_Organization: King County Dept. of Transportation/ Road Services
Contact_Position: Project Manager
Contact_Address:
Address_Type: Mailing and physical address
Address: 155 Monroe Ave NE

City: Renton
State_or_Province: WA
Postal_Code: 98056

Country: USA
Contact_Voice_Telephone: 206-296-8073
Native_Data_Set_Environment: ESRI ArcInfo Grid 7.x format

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report: Undetermined
Logical_Consistency_Report:
all cell values in the range of 0-1. A 0 value represents no change and a 1 value represents change from 1994-2001
Completeness_Report:
There are no gaps in the data. All cells were classified as one of the values found in the entity section.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
The 2001 image was acquired from the Snohomish County Public Works Department. It is an NALP product of a LANDSAT 7 ETM+ image with a systematic level processing (meaning satellite ephemeris information was the source of georectification). This was found to be a geoprecision level of approximately 3 pixels alignment to the 7 July 2000 orthorectified image purchased for this project. Appropriate process steps to orthorectify the 2001 were done by Marshall and Associates, Inc. For 2001, center to center pixel spacing is 25 meters with a horizontal accuracy of 22.8 meters.

Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report: None
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey, Eros Data Center
Publication_Date: 20020107
Title: Landsat Enhanced Thematic Mapper Plus
Geospatial_Data_Presentation_Form: NLAPS
Publication_Information:
Publication_Place: EROS Data Center
Publisher: USGS
Other_Citation_Details:
System processing, orthorectification by Marshall and Associates, Inc
Type_of_Source_Media: Raster digital data
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1992
Ending_Date: 20010811
Source_Currentness_Reference: Source date of data
Source_Citation_Abbreviation: ETM+,TM
Source_Contribution: These TM scenes provided the basis for land change detection.
Process_Step:
Process_Description: See Process Document
Source_Used_Citation_Abbreviation: ETM+,TM
Process_Date: 200206

Spatial_Data_Organization_Information:
Indirect_Spatial_Reference:
King County and Southwestern Snohomish County, WA with a minimum of a 12 km buffer from the project boundary.
Direct_Spatial_Reference_Method: Raster

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: State Plane
State_Plane_Coordinate_System:
SPCS_Zone_Identifier: 4601 (FIPS)
Lambert_Conformal_Conic:
Standard_Parallel: 47.5
Standard_Parallel: 48.7333
Longitude_of_Central_Meridian: -120.8333
Latitude_of_Projection_Origin: 47.0
False_Easting: 500,000 M
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Coordinate Pair
Coordinate_Representation:
Abscissa_Resolution: Not Determined
Ordinate_Resolution: Not Determined
Planar_Distance_Units: U.S. Survey Feet
Vertical_Coordinate_System_Definition:

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: lcchg_wet
Entity_Type_Definition: Feature attribute table for each respective grid.
Entity_Type_Definition_Source:
King County internal coding. Classification schema and definitions were determined through consensus of a working group comprised of representatives from multiple county departments.
Attribute:
Attribute_Label: value
Attribute_Definition: Default ArcInfo grid cell value
Attribute_Definition_Source: Assignment through processing steps
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0
Range_Domain_Maximum: 3
Attribute:
Attribute_Label: Count
Attribute_Definition: Cell count in grid
Attribute_Definition_Source: Software-generated
Attribute_Domain_Values:
Unrepresentable_Domain: Integer value
Attribute:
Attribute_Label: Value
Attribute_Definition: Landuse/Landcover Identifier
Attribute_Definition_Source: King County Internal classification identifier
Attribute_Domain_Values:
Enumerated_Domain:
Enumerated_Domain_Value: 0
Enumerated_Domain_Value_Definition: Not wet on either date
Enumerated_Domain_Value_Definition_Source: Defined in definitions document
Enumerated_Domain:
Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Wet in 1992; not wet in 2001
Enumerated_Domain_Value_Definition_Source: Defined in definitions document
Enumerated_Domain:
Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition: Not apparent in 1992; found wet in 2001
Enumerated_Domain_Value_Definition_Source: Defined in definitions document
Enumerated_Domain:
Enumerated_Domain_Value: 3
Enumerated_Domain_Value_Definition: Wet present in 1992 and 2001
Enumerated_Domain_Value_Definition_Source: Defined in definitions document
Overview_Description:
Entity_and_Attribute_Overview:
Each landcover grid contains a single feature attribute table, 'grid- name'.vat containing 2 items shown below in the entity detail. For most users only value columns are significant. Explanation of the class descriptions can be found in

Entity_and_Attribute_Detail_Citation: None

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Cheryl Wilder
Contact_Organization: King County GIS Center
Contact_Position: Training Coordinator

Contact_Address:
Address_Type: Mailing and physical address
Address: 201 S. Jackson St, Room 706
City: Seattle
State_or_Province: WA
Postal_Code: 98104

Country: USA
Contact_Voice_Telephone: 206-263-5220

Resource_Description: lcchg_imp, lcchg_for, lcchg_wet
Distribution_Liability:
King County disclaims any warranty of use of any digital product or data beyond that for which it was designed.

Metadata_Reference_Information:
Metadata_Date: 20020610

Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Naomi Marshall
Contact_Organization: Marshall and Associates, Inc

Contact_Position: Technical Writer

Contact_Address:
Address_Type: Mailing and physical address
Address: 1603 Cooper Point Road NW
City: Olympia
State_or_Province: WA
Postal_Code: 98502-8325

Country: USA
Contact_Voice_Telephone: 360-352-1279

Contact_Electronic_Mail_Address: nmarshall@marshallgis.com

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

Generated by mp version 2.7.17 on Tue Oct 15 14:24:24 2002