Re: time dimension problem

[Zhangfan Xing <xing@xxxxxxxxxxxxxxxxxxxx>]

Jon,

It works now. Thanks a lot.

Zhangfan

On Mon, 3 Dec 2001, Jonathan Callahan wrote:

> Zhangfan,
> 
> I finally found time to work on your problem.  I've posted an
> explanation and a solution in the FAQ pages:
> 
> http://ferret.wrc.noaa.gov/Ferret/LAS/FAQ/yearly_averages.htm
> 
> Let me know if you have further questions.
> 
> 
> -- Jon
> 
> 
> Zhangfan Xing wrote:
> > 
> > Hi, Jon and friends,
> > 
> > I am having problem to get LAS work properly with
> > a netcdf file that represents yearly averages. LAS says:
> > 
> > You specified a time or depth value that is outside the region contained
> > by this dataset.
> > 
> > I searched mail archive, found an old thread and followed suggestions
> > there, but still got same error. The URL of this old thread is
> > http://ferret.wrc.noaa.gov/Ferret/LAS/Mail_Archives/fu_2000/msg00032.html
> > 
> > Attched are relevant parts of my xml file and dump of my netcdf for time.
> > 
> > Thanks in advance.
> > 
> > Zhangfan
> > 
> > --------------------relevant parts of my xml file---------------------
> > 
> >       <jpl_time_mean units="foo" type="t">
> >        <arange start="1980" step="1" size="1"/>
> >       </jpl_time_mean >
> > 
> > --------------------dump of my netcdf for time------------------------
> > 
> > [xing@foo try]$ ncdump -v time Vave.y1980.cdf | more
> > netcdf Vave.y1980 {
> > dimensions:
> >         time = UNLIMITED ; // (1 currently)
> >         depth = 46 ;
> >         lat = 224 ;
> >         lon = 360 ;
> > variables:
> >         float lat(lat) ;
> >                 lat:long_name = "Latitude" ;
> >                 lat:units = "degrees_north" ;
> >                 lat:actual_range = -90.f, 90.f ;
> >         float lon(lon) ;
> >                 lon:long_name = "Longitude" ;
> >                 lon:units = "degrees_east" ;
> >                 lon:actual_range = 0.f, 360.f ;
> >         float depth(depth) ;
> >                 depth:long_name = "depth" ;
> >                 depth:units = "meters" ;
> >                 depth:positive = "down" ;
> >                 depth:actual_range = 0.f, 6000.f ;
> >         float time(time) ;
> >                 time:long_name = "Time in years" ;
> >                 time:units = "years" ;
> >         float Vave(time, depth, lat, lon) ;
> >                 Vave:units = "M/S" ;
> >                 Vave:long_name = "Meridional Velocity" ;
> >                 Vave:missing_value = -1.e+10f ;
> >                 Vave:add_offset = 0.f ;
> >                 Vave:scale_factor = 1.f ;
> > 
> > // global attributes:
> >                 :title = "Annual Mean 1980" ;
> >                 :history = "Converted from MITGCM output\n",
> >     "" ;
> > data:
> > 
> >  time = 1980 ;
> > }
> >
>