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To Identify areas of slopes greater than 40 percent in King County

Slopes in King County that are greater or equal to 40 Percent

Layer Name	SURFACE_LiDARDigitalGroundModelSlopeGE40
Subject Category	Imagery
Title	2002 Steep slopes in King County
Feature Count	1
Feature Type	Raster
Next Update	As needed
Spatial reference	None
Control ID	None
Place Keywords	Washington, King County, WA
Theme Keywords	Steep Slopes, Slope, Elevation, Slope Percent
Supplemental Information	None

OBJECTID From ESRI	Description Internal number Domain Sequential unique whole numbers that are automatically generated.
Shape From ESRI	Description Feature geometry. Domain Coordinates defining the features.
Shape_Length From Esri	Description Length of feature in internal units. Domain Positive real numbers that are automatically generated.
Shape_Area From Esri	Description Area of feature in internal units squared. Domain Positive real numbers that are automatically generated.
MosaicID No Source Noted	Description Not Found Domain Not Found

Maintained by	KCGIS Center
Primary	KCGIS Center giscenter@kingcounty.gov

License	Terms of use and copyright

To Identify areas of slopes greater than 40 percent in King County

Slopes in King County that are greater or equal to 40 Percent

Maintained by	KCGIS Center
Primary	KCGIS Center giscenter@kingcounty.gov

License	Terms of use and copyright

2/1/2007	Region Digital Ground Model is converted into a Pecentage Slope. Slope is reclassed into 2 classes, one for under 40 percent and one for over 40 percent. Two Classed slope is converted to polygon layer with two values. Layer value for under 40 percent is selected and deleted. Polygons under 1800 square feet are selected then deleted. Base lidar grid used was single county-wide grid layer (30 foot cell resolution) that was created by resampling individual township-range tiles at 6 foot resolution.