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Forest fires may be detected
from satellites and from land-based cameras. ENVISYS proposes to automatically
retrieve and integrate data from both sources in order to obtain a very
reliable surveillance system. Furthermore, ENVISYS will not wait passively
until a fire occurs, but will, based on remote sensing and meteorological
data, give an early warning by providing maps showing the risk of forest
fires. Other features of the system are tools for the assessment of the
situation, support to the fire combat action and a post-assessment of the
fire consequences.
Forest fire detection is based on data from the visible or thermal infrared
part of the spectrum. The signature in thermal infrared is easiest to detect.
The energy emitted by the fire will create high intensity compared to the
surrounding areas. In the visible part of the spectrum, the smoke from
the fires is most dominating.
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| Visual light image: The
smoke from the fire is clearly visible. |
Thermal infrared image:
The hot fire gives a strong contrast (bright spot on dark background just
below the centre of the image). |
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