<br clear="all">Computation of stratospheric heat flux kms-1 using NCEP/NCAR reanalysis data for a single level<br><br>'reinit'<br>'sdfopen F:\windows\ncep\ncep2\datanceplevel\<a href="http://air.2008.nc">air.2008.nc</a>'<br>
'sdfopen F:\windows\ncep\uwnd\<a href="http://vwnd.2008.nc">vwnd.2008.nc</a>'<br>'enable print 4575N_08_10h0360.gmf'<br>'set lat 45 75'<br>'set lon 0 360'<br>'set lev 10'<br>'set mproj scaled'<br>
'set parea 1.5 10 1.5 7'<br>'set grads off'<br>'set grid off'<br>'set ccolor 1'<br>'set cthick 8'<br>'set cstyle 1'<br>'set cmark 0'<br>'set strsiz 0.2'<br>'draw string 3.3 5.8 10hPa'<br>
*'set vrange -100 500 50'<br>'set xlopts 1 4 0.20'<br>'set ylopts 1 4 0.20'<br>'set time 3feb2008 14mar2008'<br><br>* zonal average<br><br>'define at=ave(air.1,lon=0,lon=360)'<br>'define av=ave(vwnd.2,lon=0,lon=360)'<br>
*departure from the zonal average<br><br>'define ate=air.1-at'<br>'define avw=vwnd.2-av'<br>'define az=ate*avw'<br><br>*zonalmean overbar [v*T*]<br>'set lon 60'<br>'define as=mean(az,lon=0,lon=360)'<br>
<br><br>* latitude weighting<br>'define a1=cos(lat*0.01744)'<br>'define a2=mean(a1,lat=45,lat=75)'<br>'define aa=as*a2'<br>'define ac=mean(aa,lat=45,lat=75)/mean(a2,lat=45,lat=75)' <br>'d ac'<br>
'draw ylab K m/s'<br>'print'<br>'disable print'<br>'!gxeps -c -i 4575N_08_10h0360.gmf -o 4575N_08_10h0360.eps'<br><br>Regrads<br>-- <br>Resmi E A<br>Research Scholar<br>Cochin university of science and technology<br>
Cochin-16<br><br>