Digital Aerial Sketch Mapping (DASM) data collection using Geolink software and an Xplore tablet PC.

Note:
Code 6P-20 = 20 dead ponderosa pine trees, caused by mountain pine beetle.
Code 6P-25 = 25 dead ponderosa pine trees, caused by mountain pine beetle.
Code 6L-50A = 50 trees/acre of dead lodgepole pine, caused by mountain pine beetle.

Photo by: Justin Hof
Date: August 24, 2017

Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.
Source: Aerial Survey Program collection.

For the 2017 Washington Aerial Survey Storymap see: usfs.maps.arcgis.com/apps/MapJournal/index.html?appid=aa8...

For geospatial data collected during annual aerial forest insect and disease detection surveys see: www.fs.usda.gov/detail/r6/forest-grasslandhealth/insects-...

For related historical program documentation see:
archive.org/details/AerialForestInsectAndDiseaseDetection...
Johnson, J. 2016. Aerial forest insect and disease detection surveys in Oregon and Washington 1947-2016: The survey. Gen. Tech. Rep. R6-FHP-GTR-0302. Portland, OR: USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection. 280 p.

Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth

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