Contours 5Ft NGA Lidar

	CCH GIS Data Dictionary
	Contours 5Ft NGA Lidar -Contours at 5 ft interval generated from the LIDAR digital elevation model (DEM) obtained from NGA/USGS.

Metadata

ATTRIBUTES:

COLUMN NAME	DESCRIPTION	SAMPLE
ID	Unique ID Number	11235
CONTOUR	Elevation in Feet	35

NOTES:

Data only covers the Oahu Urban corridor, Schoffield Barracks and Windward Oahu.

Process Steps:

clip lidar dem into 6 areas

generate contours in file geodatabase for each area

append each area together

run repair geometry to delete self intersections and empty geometry

delete line segments less than 75 feet long

run smooth command ( Paek, 20 feet)

run simplify (.5 feet)

REFERENCES:

Learn more about LIDAR at the UGSG CLICK site (Center for Lidar Information Coordination and Knowledge)
To download data from the USGS visit the USGS Hawaii Data Clearinghouse
View the original USGS LIDAR metadata record for the DEM used to create these contours.

COVERAGE:

Contours 5Ft NGA Lidar

Download (available by request only)
Download Layer File

CCH GIS Data Dictionary

Contours 5Ft NGA Lidar -Contours at 5 ft interval generated from the LIDAR digital elevation model (DEM) obtained from NGA/USGS.