<div>I am trying to open up two files one with a zonal wind componant and the other with the meridional wind componant to use to make a trajectory via <a href="http://traj.gs">traj.gs</a> script.</div>
<div> </div>
<div>Here is the .ctl file for the zonal wind:</div>
<div> </div>
<div>DSET <a href="http://uwndavg2001.nc">uwndavg2001.nc</a><br>OPTIONS template<br>DTYPE netcdf<br>XDEF longitude 144 linear 0.0 2.5<br>YDEF latitude 73 linear -90 2.5<br>TDEF time 1 linear 0z1Jan2001 1dy</div>
<div> </div>
<div>Here is the .ctl file for the meridional wind:</div>
<div> </div>
<div>DSET <a href="http://vwndavg2001.nc">vwndavg2001.nc</a><br>OPTIONS template<br>DTYPE netcdf<br>XDEF longitude 144 linear 0.0 2.5<br>YDEF latitude 73 linear -90 2.5<br>TDEF time 1 linear 0z1Jan2001 1dy</div>
<div> </div>
<div>The variables for both are U and V respectively. However since the meridional file is open second the meridional wind becomes defined as V.2. Therefore, I have to redefine V=V.2. However when I run GrADS script <a href="http://traj.gs">traj.gs</a> I get the following message:</div>
<div> </div>
<div> </div>
<div>Please open file and draw a chart</div>
<div> </div>
<div>How can I avoid this message and run <a href="http://traj.gs">traj.gs</a> successfully?</div>
<div> </div>
<div>Thanks,</div>
<div> </div>
<div>Jason</div>