Figure 2

Time course of one-minute-mean surface radiant energy flux measured outside the burn area during an April 2004 experimental slash-pile burn performed at the Manitou Experimental Forest, located in the Rocky Mountains of Central Colorado (Massman et al. 2007), using water-cooled Medtherm Corp. (Huntsville, Alabama, USA) Series 64 heat flux transducers spaced radially between 1.0 m to 13.5 m from the edge of the pile. Negative fluxes indicate that the heat flow is downward or into the soil. For the purposes of documenting the temporal sequence of events depicted in this figure and the next three figures, it should be noted that the fire was initiated at the edge of the slash pile at 10:10 AM on day 117 = 117.43 of 2004.