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[THREDDS #IQR-260651]: Thredds NetCDF Subset Image Error
- Subject: [THREDDS #IQR-260651]: Thredds NetCDF Subset Image Error
- Date: Mon, 23 Nov 2015 09:46:43 -0700
Danny,
Thanks for the detailed report. I can see the problematic output just looking
at the basic netcdf4 output using Python, so there's clearly a bug here. I've
opened an issue over on GitHub and you can keep an eye on it for further
updates here: https://github.com/Unidata/thredds/issues/301
The only workaround I can offer, unfortunately, is to continue using netcdf3
output, until we can run down why the files are coming out incorrect.
Ryan
> I have been using the Thredds data server to download satellite images.
> Sometimes I download a lot of images, so I use the NetCDF subset service
> and recently decided to use the netcdf4 files rather than the NetCDF
> files because they are much faster to download. Since I tried to use
> the NetCDF4 files, I have been running into some strange behaviour.
> Some of the data that comes out of the NetCDF4 files is scrambled -
> almost like it has the wrong dx or the wrong image width or something.
> The best I can figure is that something happens when the longitude of the
> western boundary is east of -140 degrees - all images come out scrambled.
> This is not entirely consistent - sometimes it happens even west of
> -140 degrees. I have attached some screenshots of what is happening.
Ticket Details
===================
Ticket ID: IQR-260651
Department: Support THREDDS
Priority: Urgent
Status: Closed