The extent of the burnt zone has been established by drilling. The thickest section, about 75 metres deep, underlies the Dry Lake gulch near the base of the coal measures. Other profiles of the bllrnt zone give an average thickness of about 25 metres, although thinning and some discontinuity is appartlnt. The present area of the burnt zone amounting to about 3.5 square kilometres is evidently o...

In this paper we present a first approach to evaluate the plant regeneration processes after wildfires. Ten burnt areas were selected and their NDVI variations were monitored throughout the post-fire period. The main objective was to recognise the different regeneration patterns of each burnt area. Several variables (such as the amount of rain, lithology, slope, aspect, etc.) were considered in...

Motivated by a biased diffusion of molecular motors with the bias dependent on the state of the substrate, we investigate a random walk on a one-dimensional lattice that contains weak links (called " bridges ") which are affected by the walker. Namely, a bridge is destroyed with probability p when the walker crosses it; the walker is not allowed to cross it again and this leads to a directed mo...

Wildfires are a major source of disturbance to the boreal forest ecosystem as they have been documented to bum as much as 1.5 percent (22 million ha) of its global area in a single year (Cofer et a!., 1996). Fires in this ecosystem typically kill the standing trees and thus exert a dominant control on landscape level patterns of forest succession and stand age distribution (Johnson, 1992). Fire...

Fire processes contribute to carbon dioxide emissions, main gas responsible for the Greenhouse Effect. Considering the importance of fire processes management for the detection of burnt areas in the Brazilian Amazon, the Linear Spectral Mixture Model is one of the main methods available. Nonetheless, some manual processes are required before its application, such as identifying adequate images ...

A timberline stand of Libocedrus bidwillii subalpine low forest at Pegleg Flat, Arthur's Pass, was partly destroyed by fire in the late 19th century. Patches of surviving low forest contain very few Libocedrus seedlings and lack young trees of 5-15 cm d.b.h. Only 14 large seedlings and saplings were located in the postfire sere in the formerly burnt areas. The small numbers of seedlings on both...

Patterns can be extracted from historical data and used to make predictions of future events. Such predictions are useful to support decision makers in various areas. In this study the sliding window technique is used to reveal forest fire patterns that relate four meteorological conditions (temperature, relative humidity, wind speed and rainfall) with burnt area size. Extracted patterns are th...