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Stewart, R. E.

In this study, the fire regime of the Northwest Territories (NWT, Canada) jurisdiction of the Mackenzie basin was examined, between 1994 and 1999, using data from the lightning detection network operating in the NWT and the fire data from the Canadian Forest Service's national Large Fire Database, and the NWT archive. The convective storm season and associated lightning activity were characterized as short but intense with a strong peak in cloud-to-ground lightning during June and July. The maximum area of lightning activity was influenced by local moisture sources and by topography. The diurnal distribution of strikes indicates that most of the lightning is linked with daytime-heating initiated thunderstorms. The...
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ABSTRACT. Lightning and fire characteristics within the Northwest Territories (NWT) jurisdiction of the Mackenzie Basin between 1994 and 1999 are examined using data from the lightning detection network operating in the NWT and from the national Large Fire Database maintained by the Canadian Forest Service. The convective storm season with associated lightning activity over this region is short hut intense, with a strong peak in cloud-to-ground lightning during July. The maximum area of lightning activity is influenced by local moisture sources and by topography. The diurnal distribution of cloud-to-ground flashes indicates that most of the lightning was linked to thunderstorms initiated by daytime heating. The...
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