DEM (10 meter) Hillshade

	CCH GIS Data Dictionary
	DEM (10 meter) Hillshade- Hillshading is an affect produced when the gis software evaluates the aspect and slope of the terrain relative to the sun's azimuth (the sun's location on the horizon) and sun's altitude (the sun elevation above the horizon).

Metadata

ATTRIBUTES:

COLUMN NAME	DESCRIPTION	SAMPLE
pixel value	indicates a gray-scale value (low value-in shadow, dark; high value-exposed, light)	7

NOTES:
The shadowing effect of adjacent terrain is used in generating a hillshade. The shadow direction is affected by the sun's azimuth setting and shadow length is affected by the altitude component.
(A higher sun azimuth will mean less shadows).

A DEM (Digital Elevation Model) is a 32 bit IEEE floating point value organized in a one-channel Band Interleaved by Line file (BIL) on a 7.5-minute by 7.5-minute geographic (lat/long) grid. The origin of the post is center center.

REFERENCES:

USGS Hawaii Data Clearinghouse - http://hawaii.wr.usgs.gov/oahu/data.html

COVERAGE:

DEM (10 meter) Hillshade

Download 10 M Hillshade File Geodatabase (ArcGIS Desktop 9.2 and above)
Download 10 M Elevation Model Layer File
Download 10 M Hillshade Layer File
Download 10 M Elevation Model and 10 M Hillshade group Shaded Relief Layer File

CCH GIS Data Dictionary

DEM (10 meter) Hillshade- Hillshading is an affect produced when the gis software evaluates the aspect and slope of the terrain relative to the sun's azimuth (the sun's location on the horizon) and sun's altitude (the sun elevation above the horizon).