Forest Insect & Disease Aerial Survey Data Download

Disclaimer:

Due to the nature of aerial surveys, the data will only provide rough estimates of location, intensity and the resulting trend information for agents detectable from the air. Many of the most destructive diseases are not represented because these agents are not detectable from aerial surveys. The data should only be used as a partial indicator of insect and disease activity, and should be validated on the ground for actual location and casual agent. Damage areas show locations where tree mortality or defoliation were apparent from the air. Intensity of damage is variable and not all trees in shaded areas are dead or defoliated.

By removing the contents of this package or taking receipt of these files via electronic file-transfer methods, you understand that the data stored on this media are in draft condition. Represented features may not be in an accurate geographic location. The Forest Service makes no expressed or implied warranty, including warranty of merchantability and fitness, with respect to the character, function, or capabilities of the data or their appropriateness for any user's purposes. The Forest Service reserves the right to correct, update, modify, remove, or replace this geospatial information without notification. Using this data for purposes other than those for which it was intended may yield inaccurate or misleading results.

Download Instructions:

The winzip files include the flown shapefile, damage shapefile, metadata files, and preview map image..

**Please note that all shapefiles are now projected in NAD 83 UTM 13 (06/2006)**

Year	Preview (pdf file)	View Metadata (pdf file)		Download Data (zip file)
1994		Flown Area Metadata	Damage Metadata	0.8 MB
1995		Flown Area Metadata	Damage Metadata	1.1 MB
1996		Flown Area Metadata	Damage Metadata	3.8 MB
1997		Flown Area Metadata	Damage Metadata	1.9 MB
1998		Flown Area Metadata	Damage Metadata	5.4 MB
1999		Flown Area Metadata	Damage Metadata	7.5 MB
2000		Flown Area Metadata	Damage Metadata	8.3 MB
2001		Flown Area Metadata	Damage Metadata	9.6 MB
2002		Flown Area Metadata	Damage Metadata	11.1 MB
2003		Flown Area Metadata	Damage Metadata	16.8 MB
2004		Flown Area Metadata	Damage Metadata	11.5 MB
2005		Flown Area Metadata	Damage Metadata	10.5 MB
2006		Flown Area Metadata	Damage Metadata	13.6 MB
2007		Flown Area Metadata	Damage Metadata	10.8 MB
2008	Available Fall 2008	Flown Area Metadata	Damage Metadata

Related Documents and User Guides

Aerial Survey GIS Handbook Version: November 2005 (484 kb)
2005 Accuracy Assessment Completed during the 2005 field season (255 kb)
Data Disclaimers for Aerial Survey Maps Please use one of these suggested disclaimers on all maps that use aerial survey data (34 kb)

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