Summarizing the GRF’s correlation structure

variog_cloud <- variog(
  coords = parana$coords, 
  data = parana$data,
  option = "cloud", 
  max.dist = 400
)

str(variog_cloud[c("u", "v")])

## List of 2
##  $ u: num [1:8776] 282 320 330 318 283 ...
##  $ v: num [1:8776] 5535 9663 10270 10156 8126 ...