Abstract

CATRY, Filipe Xavier; ALMEIDA, Rui Manuel  and  REGO, Francisco Castro. Production of Visibility Maps for Continental Portugal and their Use in the Surveillance of Forest Fires: L'Importance de son Utilisation dans la Surveillance Contre des Incendies Forestiers. Silva Lus. [online]. 2004, vol.12, n.2, pp.227-241. ISSN 0870-6352.

In Portugal, the National Lookout Posts Network (RNPV) represents one of the main forest fire monitoring systems at the state level, currently consisting of 237 lookout posts distributed from the north to south of the country. To plan correctly and manage efficiently this network, integrated in a wider monitoring system, the knowledge of the territory covered by the lookout posts is essential, this being necessary to produce visibility maps. However, despite its recognized importance, the production of this type of cartography is practically inexistent in our country, and the information that these maps provide is not used for planning and management purposes. With the objective to contribute to the support of the planning of the terrestrial monitoring system in general and to the management of the NLPN in particular, we present and discuss methodologies to produce a national visibility map and a national monitoring priority map, and we analyze the results.

Keywords : National Lookout Posts Network; GIS; management planning.

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