Forest Fire Indices in Greece During the Forest Fire Events of Summer 2007
During the summer of 2007 the entire Greek territory was subject to a great number of forest fires, which caused many casualties. The purpose of this paper is to investigate the levels of two prognostic forest fire risk indices, the Angstrom index and the Nesterov index. We used hourly data from five surface stations of the Hellenic National Meteorological Service, obtained from the website of the University of Wyoming, as well as upper level NCEP/NCAR data, for the period June 1st to August 31st, 2007. The analysis showed that both indices reached values indicating a high probability of fire occurrence during the entire examined period. In addition by the end of August the level of the Nesterov index was 18 times higher than the respective threshold limits. Finally, the deviation of certain upper atmospheric parameters from their average values was also examined.
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