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Title:
Canadian and Siberian Boreal Fire Activity during ARCTAS Spring and Summer Phases
Authors:
Stocks, B. J.; Fromm, M. D.; Soja, A. J.; Servranckx, R.; Lindsey, D.; Hyer, E.
Affiliation:
AA(B.J. Stocks Wildfire Investigations Ltd., Sault Ste. Marie, ON, Canada ), AB(Naval Research Lab, Washington, DC, United States ), AC(National Institute of Aerospace, Hampton, VA, United States ), AD(Canadian Meteorological Centre, Dorval, QC, Canada ), AE(NOAA NESDIS, Ft. Collins, CO, United States ), AF(Naval Research Lab, Monterey, CA, United States )
Publication:
American Geophysical Union, Fall Meeting 2009, abstract id. A41E-01
Publication Date:
12/2009
Origin:
AGU
Keywords:
0305 ATMOSPHERIC COMPOSITION AND STRUCTURE / Aerosols and particles, 0315 ATMOSPHERIC COMPOSITION AND STRUCTURE / Biosphere/atmosphere interactions, 0345 ATMOSPHERIC COMPOSITION AND STRUCTURE / Pollution: urban and regional, 0365 ATMOSPHERIC COMPOSITION AND STRUCTURE / Troposphere: composition and chemistry
Bibliographic Code:
2009AGUFM.A41E..01S

Abstract

The summer phase of ARCTAS (Arctic Research of the Composition of the Troposphere from Aircraft and Satellites) was designed specifically around forest fire activity in the Canadian boreal forest, and located in areas of northern Canada where summer forest fires are ubiquitous. Lightning fires are most often allowed to burn naturally in these regions, and a number of large free-burning fires in northern Saskatchewan in late June/early July 2008 provided excellent targets during the summer phase of ARCTAS. Smoke generated by a large number of early spring fires in Kazakhstan and southern Siberia unexpectedly made a significant contribution to arctic haze during the Alaska-based spring phase of ARCTAS, Numerous smoke plumes were sampled during the spring phase of ARCTAS, creating interest in the origin and characteristics of the fires in the source regions of East Asia. This presentation is designed to connect aircraft and satellite smoke chemistry/transport measurements with ground-based measurements of fire activity during the spring and summer phases of ARCTAS. The Canadian Forest Fire Danger Rating System (CFFDRS) is used to determine forest fire danger conditions in regions of fire activity, and these measurements are in turn used to project fire behavior characteristics. Fuel consumption, spread rates, and frontal fire intensity are calculated using the CFFDRS. Energy release rates at ground level are related to convection/smoke column development and smoke injection heights.
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