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Re: plotting a time series over a hovmuller plot
Hello Heine,
You could use plot/vs to do this as in the following demo
! define an x-t variable
def axis/x=135e:135w:1/units=longitude xax
def axis/t=1-jan-1985:31-dec-1987:1/units=days tax
def grid/x=xax/t=tax grd
let sst=randu(x[g=grd]+t[g=grd])+x[g=grd]
! and draw it
fill sst
! now define the function of t only (with values in the longitude range)
let ZEROPOINT=180+20*sin(6.28*l[g=sst]/365)
! and overplot it as a dark black line
plot/o/vs/line=13 zeropoint,t[g=grd]
Hope this helps,
Mick Spillane
|____spillane@pmel.noaa.gov____|
|__Room 2070 Bldg#3 NOAA/PMEL__|
|____Phone_:_(206)526-6780_____|
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