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Overview

The King County Spatial Data Warehouse stores landcover data representing full-county single-class interpretations and multi-class themes. Generally these interpretations represent spectral classifications of both vegetative and urban landcover types. The data products have been developed through King County contract development as well as made available from external sources.


Summary of landcover data products

Not all data may available for release to the public or agencies and cities outside of King County government if it was originally obtained from an external source. Data may be made available, with restrictions, to consultants and other parties operating under contract or other formal agreement with King County. This data can be obtained by submitting a custom data order. The KCGIS Center can assist you in selecting the correct data and format for your needs, and in providing a cost-estimate for data preparation and media delivery. The KCGIS Center can also assist you in contacting the original source or vendor for data that we cannot redistribute.

Landcover Dataset Vintage Number of Landcover classes
Excel Spreadsheet
Details, incl. resolution
Multispectral Impervious/impacted surface interpretation  2009 2 2 ft county-wide
Man-made Structure Height     2000-2003     1(height in feet)     6 ft county-wide
Vegetation Height 2000-2003 1(height in feet) 6 ft county-wide
Landsat (TM) landcover classification 2007     11 KC generated, approx. 85 ft, summer scene
National Landcover Database Percentage Impervious Surface 2006 1(percentage) USGS, approx. 98 ft
National Landcover Database Landcover classification 2006 16

USGS, approx. 98 ft

Landsat (TM) landcover classification 2002 16 University of Washington PRISM project, approx. 98 ft
Landsat (TM) landcover classification 2001 11 approx. 84 ft
National Landcover Database Landcover classification 2001 16 USGS, approx. 98 ft
National Landcover Database Impervious Surface Percent 2001 1(percentage) USGS, approx. 98 ft
National Landcover Database Tree Canopy Percent 2001 1(percentage) USGS, approx. 98 ft
Western Washington Landcover Change Analysis - Percent Tree Canopy 2001 1(percentage) WA Dept of Ecology/Sanborn, approx. 98 ft
Western Washington Landcover Change Analysis - Percent Impervious Surface 2001 80(20-100 percentage) WA Dept of Ecology/Sanborn, approx. 98 ft
Western Washington Landcover Change Analysis - Base Landcover 2001 16 WA Dept of Ecology/Sanborn, approx. 98 ft
Multispectral imagery impervious/impacted surface interpretation 2000 2 2 ft county-wide
Coastal Change Analysis Program Landcover Classification 2000 22 NOAA, approx. 98 ft
Landsat landcover classification 1998 7 UW Rapid Landcover Classifcation Method, approx. 98 ft
Western Washington Landcover Change Analysis - Percent Tree Canopy 1996 1(percentage) WA Dept of Ecology/Sanborn, approx. 98 ft
Western Washington Landcover Change Analysis - Percent Impervious Surface 1996 80(20-100 percentage) WA Dept of Ecology/Sanborn, approx. 98 ft
Western Washington Landcover Change Analysis - Base Landcover 1996 16 WA Dept of Ecology/Sanborn, approx. 98 ft
Landsat landcover classification 1995 16 approx. 82 ft
Coastal Change Analysis Program Landcover Classification 1995 22 NOAA, approx. 98 ft
Landsat landcover classification 1992 21 USGS, approx. 98 ft
Landsat landcover classification 1991 6 UW, approx. 98 ft
Western Washington Landcover Change Analysis - Percent Tree Canopy 1991 1(percentage) WA Dept of Ecology/Sanborn, approx. 98 ft
Western Washington Landcover Change Analysis - Percent Impervious Surface 1991 80(20-100 percentage) WA Dept of Ecology/Sanborn, approx. 98 ft
Western Washington Landcover Change Analysis - Base Landcover 1991 16 WA Dept of Ecology/Sanborn, approx. 98 ft
1970 Landcover updated with 2000 new residential 1970-2000 36 USGS, approx. 328 ft
1970 Landcover updated with 1990 new residential 1970-1990 36 approx. 84 ft
Landsat Impervious Area Growth 1994 - 2001 1 approx. 84 ft
Landsat Wet Area Change 1994 - 2001 3 approx. 98 ft
Landsat Forest Area Loss 1994 - 2001 1 NOAA, approx. 98 ft
Coastal Change Analysis Program Landcover Classification 1995 - 2000 94 NOAA, approx. 98 ft
Western Washington Landcover Change Analysis 1991 - 2001 110 WA Dept of Ecology/Sanborn
Western Washington Landcover Change Analysis 1991 - 1996 70 WA Dept of Ecology/Sanborn
Western Washington Landcover Change Analysis 1996 - 2001 91 WA Dept of Ecology/Sanborn
Average Monthly Precipitation for WA state and King County 1971-2000 inches OSU PRISM
Annual Average Maximum Temperature for WA state and King County 1971-2000 degrees F OSU PRISM
Annual Average Minimum Temperature for WA state and King County 1971-2000 degrees F OSU PRISM
January Average Minimum Temperature for WA state and King County 1971-2000 degrees F OSU PRISM
July Average Maximum Temperature for WA state and King County 1971-2000 degrees F OSU PRISM