Regional weather forest fire danger scales

In this paper a new methodological approach to the problem of calculating regional weather forest fire danger scales is presented.It was developed upon the analysis of the foreign forest fire danger laws, instructions and publications of Russian Federation as well as other countries.Russian methodological approaches to the problem of calculating regional weather forest fire danger scales have been investigated.The main methodological flaw of the currently employed methods is that they make it impossible to compare the projected amount of forest fires for different forest fire protection departments that share the same fire danger class.Since the fire danger classes are used to regulate the functioning of forest fire protection departments, we conclude that their functioning under the current approach is not effective.We have proposed a new criterion for the construction of regional fire danger scales: an average number of igniting forest fires per day of the fire season.Universal ranges for the number of igniting forest fires per day, corresponding to the fire danger classes, have been constructed for the forestries of the Russian Federation.A new methodological approach to the determining of the fire season periods within the fire season has been created.Periods of maximum and minimum forest fires number have been defined.A new algorithm that uses approximated functional relation to calculate regional scales has been constructed.Using the developed approach, we have calculated regional weather forest fire danger scales for the forestries of the Primorsky region.This method will allow a more effective functioning of the forest fire protection departments during the forest fire season.It will also provide a way to compare the workload of different forest fire departments by projecting the maximum number of igniting forest fires.

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