1. USDA Forest Service; Rocky Mountain Research Station; Missoula Fire Sciences Laboratory; 5775 Highway 10 West Missoula Montana 59808 USA
2. US Geological Survey; Alaska Science Center; 4210 University Drive Anchorage Alaska 99508 USA
3. School of Natural Resources and the Environment; Environment and Natural Resources II; University of Arizona; Tucson Arizona 85721 USA
4. W.A. Franke College of Forestry & Conservation; University of Montana; 32 Campus Drive Missoula Montana 59812 USA
5. USDA Forest Service; Pacific Northwest Research Station; Forestry Sciences Laboratory; 1133 N. Western Avenue Wenatchee Washington 98801 USA