Hi Rick,
Here is the variable summary:
Variable: ref
Type: byte
Total Size: 39942400 bytes
39942400 values
Number of Dimensions: 2
Dimensions and sizes: [y | 6320] x [x | 6320]
Coordinates:
Number Of Attributes: 2
missing_value : -99
units : dBz
I was able to get around the issue by using a byte2flt conversion for the variable, but I was just wondering if there was a better way to read the byte data from the file so this conversion is not necessary?
Thanks for your help,
Lisa
--------------------------------------------
On Wed, 11/27/13, Rick Brownrigg <brownrig@ucar.edu> wrote:
Subject: Re: [ncl-talk] Unsigned/Signed bytes in NCL
To: "Lisa Alexander" <lisa_s_a@yahoo.ca>
Cc: ncl-talk@ucar.edu
Received: Wednesday, November 27, 2013, 12:43 PM
Hi,
Are you saying that when NCL opens your file, it believes
the variable in question is of type unsigned-byte?
What does the output of
"printVarSummary(…yourVariable…)" look like?
Rick
On Nov 27, 2013, at 10:27 AM, Lisa Alexander <lisa_s_a@yahoo.ca>
wrote:
> Hello,
>
> I am a new user to NCL. I am using NCL version 6.1.2.
> I have been having some trouble with NCL in reading
byte data from netCDF files. I have a variable that I am
trying to read that has all positive values (reflectivity),
but the missing_value is -99. NCL seems to only want to read
it as a unsigned byte (0 to 255) which means the variable
shows a non-uniform error message.
>
> Is there any way to get NCL to read the data as a
signed byte type so that the -99 values are valid in the
data set?
>
> Thanks for your help,
> Lisa
>
>
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Received on Wed Nov 27 10:54:33 2013
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