Hi Paul, It does sound like an issue with the visualization software. NetCDF is both the data model and the storage file format; the data in the file is what was written to it. No post-processing or adjustment is applied, it is assumed that that will be handled upstream when the data is read from the file. I do not have any experience with the tools you list, but I would be surprised if they do not offer some way of setting the longitudinal scale. That is just supposition, however; you might try contacting their support queues and see if they can offer a solution to this. Without looking at the data, however, I would tentatively agree with the data provider that the issue is the visualization software, not the data itself. This is supported by what I know about netCDF, as well as the fact it opens properly in Panoply and HDFView. It is also explained by the different degree scales, as you point out. I hope this helps, have a great day, -Ward > Hi, > > My name is Paul and I work at the National Snow and Ice Data Center. We > recently received some test swath data from NASA in .nc format. When > I open the data in Panoply and HDFView, it displays fine. However, > when using ArcGIS, QGIS, and GDAL, we are having trouble with the > longitude. The data are displaying exactly 180 degrees difference from > where it should be even though the metadata in Panoply and HDFView > are correct. It appears ArcGIS, QGIS, and GDAL are using a 0 to 360 > degrees scale, rather than -180 to 180, and starts the longitude at the > International Date Line. Thus, when the files are read by these tools, > they are displayed incorrectly. > > Have you seen anything like this in the past? The data providers are > claiming it's the software and not the data but I would like to get your > opinion . Unfortunately, the files are rather large so I cannot email > but have attached a screenshot. The .nc file should be over Japan but > appears over the Atlantic. > > Thanks, > > Paul Moth > User Services Office > National Snow and Ice Data Center > University of Colorado at Boulder > > Ticket Details =================== Ticket ID: XFZ-751322 Department: Support netCDF Priority: Normal Status: Closed =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.
NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.