sdfopen /grove3/iesuw/ccm1/CCM1-CNTROLPI-MONE0510.nc
enable print hov.height-lat.prt
set grid off
set grads off
set t 1 
set z 1 12 
define uave=ave(u,lon=-180,lon=180)
set x 1
set grads off
set clevs -25 -20 -15 -10 -7.5 -5 -4 -3 -2 -1 0 1 2 3 4 5 7.5 10 15 20 25 30 40 50 60 70 80 
d uave 
draw ylab height (sigma level) 
draw xlab latitude 
draw title Zonal Cross-section of U (January,lon=-180 to 180)
print
disable print