sdfopen /grove3/iesuw/ccm1/CCM1-CNTROLPI-MONE0510.nc 
enable print xy.time.prt
set grid off
set grads off

*define area and time averages

*set time 1 12 to index through all months
set t 1 12 

*nino34 = monthly average over nino 3.4 region
define nino34=aave(ts,lon=-170,lon=-120,lat=-5,lat=5)

*avgSST = annual average over nino 3.4 region
define avgSST= ave(nino34,t=1,t=12)


*plot

set y 1

*set xaxis labels to be 1 - 12 (month number)
set xaxis 1 12 1

*turn grads label off
set grads off

*set line marker for nino34 plot to be closed circles
set cmark 3 

*draw monthly averages (line plot)
d nino34


*set line marker for ann average (horiz. line to be solid, no markers)
*and draw 
set cmark 0
d avgSST

*draw axis labels and title
draw ylab Nino 3.4 Region SST (5N-5S, 170W-120W) 
draw xlab time 
draw title  Nino 3.4 Region SST Time Series (Horiz. Line = Ann Avg) 

print
disable print