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. 2016 Sep 8;11(9):e0162464. doi: 10.1371/journal.pone.0162464

Table 1. Summary of data sources for the variables used in the analysis.

Index Variable Data description Year Data source
All Continuous urban area Built up surfaces and open spaces 2010 Landsat ETM+ / 25.10.2010
Exposure 1 Land Surface Temperature (LST) Land surface temperature 2002 Landsat ETM+ / 21.03.2002
2 Land Surface Temperature (LST) Land surface temperature 2005 Landsat TM / 03.03.2005
3 Land Surface Temperature (LST) Land surface temperature 2009 Landsat TM / 16.03.2009
Sensitivity 1 Elderly population Inhabitants per hectarea above 60 years old 2002 Instituto Nacional de Estadística de Chile (Censo de Población y Vivienda 2002)
2 Very young population Inhabitants per hectarea below 5 years old 2002 Instituto Nacional de Estadística de Chile (Censo de Población y Vivienda 2002)
3 Disabled population Inhabitants per hectarea handicapped 2002 Instituto Nacional de Estadística de Chile (Censo de Población y Vivienda 2002)
4 Family structure Inhabitants per hectarea single 2002 Instituto Nacional de Estadística de Chile (Censo de Población y Vivienda 2002)
5 Education level Inhabitants per hectarea with lower education 2002 Instituto Nacional de Estadística de Chile (Censo de Población y Vivienda 2002)
6 Unemployment Inhabitants per hectarea without a permanent employment 2002 Instituto Nacional de Estadística de Chile (Censo de Población y Vivienda 2002)
Adaptive Capacity 1 Access to communication technologies Households with mobile phone, landline telephone, internet connection and computer 2002 Instituto Nacional de Estadística de Chile (Censo de Población y Vivienda 2002)
2 Access to water supply Households per hectarea without water provision within the house 2002 Instituto Nacional de Estadística de Chile (Censo de Población y Vivienda 2002)
3 Material Index Number of houses per hectarea with light materials in external walls 2002 Instituto Nacional de Estadística de Chile (Censo de Población y Vivienda 2002)
4 Access to medical services Distance (m) of the centroid of the built up area in the census block to the nearest health care centre 2013 http://www.mapcruzin.com/free-chile-country-city-place-gis-shapefiles.htm
5 Roads km/km2 of roads per census tract 2013 http://www.mapcruzin.com/free-chile-country-city-place-gis-shapefiles.htm
6 Normalized Difference Vegetation Index (NDVI) NDVI values 2002-2005-2009 Landsat TM / 16.03.2009