The results suggested the existence of a critical velocity for the cross-wind on the initiation of fire swirling and an approximate value was identified for the conditions in the tests.
The first part [1] presented the numerical models and results focused on the most relevant kinematic issues (deflections and strains), while this second part (present paper) reports numerical results associated to the static issues, particularly the evolution of stress distributions and failure initiation with fire exposure time.
Based on our results, Shal/Kv4 channels regulate the initiation of firing, enable neurons to continuously fire throughout a prolonged stimulus, and also influence firing frequency.
Next we asked whether reverse reactivation extends beyond the first spikes of cells in an SWR, i.e. is the phenomenon more than reverse-order initiation of firing.
Fire initiation increased in landscapes with more area harvested and decreased with area recently burned.
Our analyses illustrated that forest harvesting and burning had opposite effects on subsequent fire initiation, so harvest was not a surrogate for fire.
Nonetheless, the effect of overstory basal area on crown fire initiation is negligible, and is unlikely to increase fire suppression effectiveness, at least in young stands.
We quantified the relationship between annual patterns of lightning fire initiation, forest composition, lightning, and fire weather conditions over eight years (1994 2001) in a 60,000 km2 region of actively harvested mixedwood boreal forest in western Canada.
The introduction of a weighted probability factor for aspect, whereby south-facing slopes have a higher likelihood of fire initiation, was not found to significantly affect patterns of fire age in the landscape.
Our data suggested that increased fire initiation was most pronounced in harvested stands up to a decade old, and there was some evidence that the effect might last as long as 30 years.
