Re: writing and reading character arrays to netCDF

Hi Dave,
  Okay, thanks for letting me know. By the way, do logical values
automatically get transmorgified into 1's and 0's when NCL writes them
out to netCDF? I noticed that as well and was a bit mystified as to the
best way to write out logical arrays to netCDF files.

Jonathan

David Brown wrote:
>
> Hi Jonathan,
>
> I have reproduced your problem of have the _FillValue show up as lower
> case 'l'
> when reading the file into NCL, while ncdump shows it as a null
> character.
>
> This is a bug somewhere, probably in NCL. I will investigate.
> -dave
>
>
> On Mar 5, 2009, at 12:39 PM, Jonathan Vigh wrote:
>
>>
>> Greetings,
>> I'm using NCL to write out a character array to a netCDF flie and
>> then read it back in for processing using a different NCL script. Some
>> of the time my arrays are all just _FillValue, which I have set to the
>> null character. However, if I dump the resulting netCDF file after it is
>> written, these show up as lower case Ls (e.g. "l"). When I read the
>> netCDF file back in using my other script, the _FillValue attribute is
>> "l". This causes a warning message because I am trying to assign the
>> read data to a multidimensional array which already has a _FillValue
>> set to the null character. So I get the warning:
>>
>> fatal:Attribute assignment type mismatch
>>
>> Does anyone know about why this is happening? Does netCDF represent the
>> null character as an "l"?
>>
>> Thanks,
>> Jonathan
>>
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Received on Thu Mar 05 2009 - 13:16:57 MST