Re: [idvusers] No gridded data found

• To: Sara Loureiro Solla <sara.solla@xxxxxxxxxxxxx>
• Subject: Re: [idvusers] No gridded data found
• From: Brian Mapes <bmapes@xxxxxxxxxxxxxxx>
• Date: Mon, 22 Aug 2016 14:30:37 +0000

X,y,t might have to be called Lon,lat,time?

Brian Mapes
This message was typed on a cell phone, please forgive its terseness and any 
errors. 

> On Aug 22, 2016, at 7:46 AM, Sara Loureiro Solla <sara.solla@xxxxxxxxxxxxx> 
> wrote:
> 
> Hello everyone!
> 
> I am having trouble opening a *.nc file using IDV. The error I encounter is " 
> No gridded data found". I found some posts about the same problem in the 
> idvusers list, but I cannot find a proper solution.
> 
> I create a nc file using python 2.7 and netCDF4.1.2.4 module. The dimensions 
> and the variables related to them are created this way:
> 
> Dimensions:
> dataout.createDimension('t', None)
> dataout.createDimension('y', 361)
> dataout.createDimension('x', 720)
> dataout.createDimension('z', 1)
> 
> Variables:
> lat = self.dataout.createVariable('y', 'f4',( 'y',), zlib=True)
> lat.units = 'degrees_north'
> lon = self.dataout.createVariable('x', 'f4', ('x',), zlib=True)
> lon.units = 'degrees_east'
> time = self.dataout.createVariable('t', 'f4', ('t',), zlib=True)
> time.units = 'hours'
> time.calendar = 'gregorian'
> vertical = self.dataout.createVariable('z','f4',('z',),zlib=True)
> vertical.units = 'hPa'
> vertical.positive = 'down'
> 
> Variable filling:
> lat[:] = np.arange(-90,90.5,.5)
> lon[:] = np.arange(-180,180,.5)
> time[:] = 80
> vertical[:] = 850
> 
> According to ncdump my file has the follow coordinate variable data:
> t = 180 ;
> z = 850 ;
> y = -90, -89.5, -89, -88.5 ...... 85.5, 86, 86.5, 87, 87.5, 88, 88.5, 89, 
> 89.5, 90 ;
> x = -180, -179.5, -179, ...... 178, 178.5, 179, 179.5 ;
> 
> Any idea about what could lead to the "no gridded data found" error?
> 
> Thank you very much!
> Sara
> 
> Sara Loureiro Solla
> Junior Metocean Modeller
> BMT ARGOSS
> 
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• References:
  • [idvusers] No gridded data found
    • From: Sara Loureiro Solla