damrats {AIGIS} | R Documentation |
Based on very approximate empirical analysis, gives the fraction of structures in a block group that would, on average, be damaged if that block group were contained in the perimeter of a wildfire. Note this will be zero for blocks above a certain housing density.
data(damrats)
A vector of length 22133 (equal to the number of block groups). Entry [i] corresponds to block group [i] as referenced in ‘bgvals’ and identified in polytobg[polytobg[,1]==i,]
.
The estimates were derived by linking data from the archived National Interagency Coordination Center (NICC) Incident Management Situation Reports (http://cidi.org/wildfire/) with census data for the number of homes in a polygon, with GIS data on fire perimeters for fires in the NICC archives. They are highly uncertain, with an extremely low R squared.
data(damrats)