tcorr (expr1, expr2, tdim1, tdim2)
This function produces a spatial map of temporal correlation coefficients.
expr1

a valid GrADS expression that varies in timeexpr2

a valid GrADS expression that varies in time and may also vary in X and Ytdim1

starting time dimension expression tdim2

ending time dimension expression
The expr1
time series is correlated to the time
series at each grid point in expr2
. The result is
a grid of correlation coefficients that matches the X and Y dimensions
of expr2
.
expr1
and expr2
vary only in time, the output is a single value.
scorr
function to do correlation over the spatial domain.
set x 1 set y 1 set z 1 set t 1 100 define elnino = aave(ts,lon=160,lon=80,lat=10,lat=10) set lon 180 180 set lat 90 90 set z 1 set t 1 d tcorr(elnino, slp, t=1, t=100)