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Indicator Assessment
Modelled three-monthly fire danger levels in Europe for 1961-1990 and 2071-2100 and change between these periods
Fire risk depends on many factors of a different nature that change over time (e.g. weather, fuel load, fuel type and condition, forest management practices, socio-economic context). Historic fire series can be used to support statements on trends but, unfortunately, long and consistent time series of fire events are rarely available in Europe. In addition, by looking at the historic fire series alone, it is difficult to get a clear picture and recognize the effect of climate on fire potential. In contrast, meteorological fire danger indices, which are designed to rate the component of fire risk that depends on weather conditions, can be usefully employed to analyse fire trends in a consistent way over longer periods. These indices, normally applied on a daily basis, can be summarised on a seasonal basis to rate the overall fire potential of a given year (seasonal fire severity) due to meteorological conditions. The index of Seasonal Severity Rating (SSR) has been derived from daily values of Van Wagner's Fire Weather Index (FWI), Van Wagner (1987), the fire danger assessment method most widely applied throughout the world (San Miguel-Ayanz et al., 2003). Results of a recent study on SSR development are shown in Figure 1.
The average trend for 1958-2006 was computed for all the grid cells, but it was statistically significant for only 21 % of the cases (15 % positive and 6 % negative), which appear to be concentrated in specific geographical areas.
Projections were derived for the IPCC SRES scenario A2, processing data from the PRUDENCE data archive, namely the daily-high resolution data (12 km) from the HIRHAM model run by DMI, for the time periods 1960-1990 (control) and 2070-2100 (projections) (see Figure 2). In agreement with a similar assessment performed for North America (Flannigan et al., 2005), the results for Europe confirm a significant increase of fire potential, an enlargement of the fire-prone area and a lengthening of the fire season.
No context has been specified
No targets have been specified
No related policy documents have been specified
http://www.eea.europa.eu/publications/eea_report_2008_4/pp193-207CC2008_ch8_Data_gaps.pdf
No methodology references available.
http://www.eea.europa.eu/publications/eea_report_2008_4/pp193-207CC2008_ch8_Data_gaps.pdf
http://www.eea.europa.eu/publications/eea_report_2008_4/pp193-207CC2008_ch8_Data_gaps.pdf
No uncertainty has been specified
For references, please go to https://www.eea.europa.eu/data-and-maps/indicators/forest-fire-danger/forest-fire-danger-assessment-published or scan the QR code.
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