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A raster of Global Aridity Index version 3

Source: R/eSTZwritR.R
GAI-cont.Rd

This data set is from Zomer et al. 2022, and modified by sub-setting to the contiguous USA. Zomer, Robert J., Jianchu Xu, and Antonio Trabucco. "Version 3 of the global aridity index and potential evapotranspiration database." Scientific Data 9.1 (2022): 409.

Format

A raster data set

GAI

GAI stored as an integer, needs divided by 10000 to receover decimal places.

Examples

r <- terra::rast(
 file.path(
   system.file(package="eSTZwritR"),  "extdata", 'GAI-cont.tif'
 )
)
terra::plot(r/10000, col = terra::map.pal('ryg'))

# rainforests swamp the palette!
terra::plot(sqrt(r/10000), col = terra::map.pal('ryg'))

 # better visualization of mid points
terra::plot(log(r/10000), col = terra::map.pal('ryg'))

# better vis of low end