spam (version 0.11)

USprecip: Monthly total precipitation (mm) for April 1948 in the contiguous United States

Description

This is a useful spatial data set of moderate to large size consisting of 11918 locations. See www.image.ucar.edu/GSP/Data/US.monthly.met/ for the source of these data.

source

www.image.ucar.edu/GSP/Data/US.monthly.met/

References

Johns, C., Nychka, D., Kittel, T., and Daly, C. (2003). Infilling sparse records of spatial fields. Journal of the American Statistical Association, 98, 796-806.

See Also

RMprecip

Examples

# plot
library(fields)

data(USprecip)
par(mfcol=c(2,1))
quilt.plot(USprecip[,1:2],USprecip[,3])
US( add=TRUE, col=2, lty=2)
quilt.plot(USprecip[,1:2],USprecip[,4])
US( add=TRUE, col=2, lty=2)