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Table 2 Summary and description of climatic, socioeconomic and biophysical variables employed in the study

From: Uncovering current pyroregions in Italy using wildfire metrics

Variables

Codes and units

Description and source

Climatic

 Average max. temperature

Temp_max [°C]

Calculated from MOD11A2 V6, 8-day Land Surface Temperature at 1 km of spatial resolution. Temp_mean is the average from 2007 to 2017 and Temp_max is the average maximum yearly temperature within this period

 Average mean temperature

Temp_mean [°C]

 

 Evapotranspiration

ET_mean [kg/m2]

Average for 2007–2017, calculated from MOD16A2 V6, 8-day Evapotranspiration composite at 500 m of spatial resolution

 Longest drought period

Longest_drought_period [days]

The average longest drought within the period of investigation (2007–2017)

Biophysical

 NDVI mean

NDVI_mean

Average for 2007–2017 calculated from MOD09A1 V6, 8-day Surface Spectral Reflectance composite at 500 m of spatial resolution

 NDWI mean

NDWI_mean

 Elevation

elev.mean [m asl]

Zonal mean derived from NASA SRTM DEM at 90 m of spatial resolution, v4.1 (Jarvis et al. 2008)

 Slope

slope.deg [degrees]

 Latitude

Latitude][decimal degrees]

Latitudinal location of the centroid for each NUTS3 province

 Density of rivers

river.density [km/ha]

Derived from the CCM2 River and Catchment Database for Europe V 2.1. River density was calculated only considering the main rivers

 Mean distance to coast

coast.dist.mean [km]

 Artificial surfaces

Artif.surf [%]

Percentage occupied by artificial surfaces (Level 1) according to Corine Land Cover 2012 (CLC 2012)

 Arable lands

Arable.land [%]

Percentage occupied by arable lands, permanent crops, pastures and heterogeneous agricultural areas (Level 2) according to CLC 2012

 Permanent crops

Perm.crop [%]

 Pastures

Pastures [%]

 Heterogeneous agricultural areas

Agric.areas [%]

 Broad leaved forests

Broad.leaved.for [%]

Percentage occupied by broad-leaved, conifer and mixed forests (Level 3) according to CLC 2012

 Conifer forests

Conif.for [%]

 Mixed forest

Mixed.for [%]

 Shrub/herbaceous vegetation association

Shr.herb.veg [%]

Percentage occupied by scrub/herbaceous vegetation associations and areas with little or no vegetation (Level 2) according to CLC 2012

 Little or no vegetation

little.no.veg [%]

Socioeconomic

 Population density

pop.dens [inhab/km2]

Eurostat [demo_r_d3dens] data from 2012

 Level of employment

Perc.employed [%]

Eurostat [nama_10r_3empers] data from 2012

 Gross Domestic Product

GDP [1000 EUR/km2]

Eurostat [nama_10r_3gdp] data from 2012

 Density of tourist establishments

dens.tour.establ [#/km2]

Includes hotels; holiday and other short-stay accommodations; camping grounds, recreational vehicle parks and trailer parks. Eurostat [tour_cap_nuts3] data from 2011

 People with basic education

Perc.people.basic.educ [%]

Percentage of people with basic educational level (0–2). Istat [DICA_GRADOISTR1] data from 2011

  1. NDVI Normalized Difference Vegetation Index, NDWI Normalized Difference Water Index