<br clear="all">Dear users<br>i would like to calculate the stream function from 1000-10 hPa levels. I am using NCEP/NCAR reanalysis data. i have tried this commands and it works on single level.<br><br>'reinit'<br>
'sdfopen H:\windows\ncep\uwnd\<a href="http://uwnd.2009.nc">uwnd.2009.nc</a>'<br>'sdfopen H:\windows\ncep\uwnd\<a href="http://vwnd.2009.nc">vwnd.2009.nc</a>'<br>'set lat -90 90'<br>'set lon 0 360 '<br>
'set lev 1000'<br>'set time 23jan2009'<br>'set mproj scaled'<br>'set parea 1 10.4 1.5 7.6'<br>'define vor1=hcurl(uwnd,vwnd.2)'<br>'define psi= fish(vor1)'<br>*'d psi'<br>
'define psii=psi-aave(psi,global)'<br>'set gxout shaded'<br>'d psii/1e7'<br><br>Regards<br>-- <br>Resmi E A<br>Research Scholar<br>Cochin university of science and technology<br>Cochin-16<br><br>