Hello,
I work at a data center (NSIDC) in Boulder and we are
reviewing some new NetCDF data that we'll archive. This is
satellite data and is a fairly low level swath product. The
geolocation data (lat/lons) is linked to the science data
within each file.
In HDFView and Panoply the data seems to display fine, but
using ArcGIS, QGIS, and gdal, the data is 180 degrees off.
As an example, a file that is over Japan show up over the
Atlantic in ArcGIS.
One of my team ran some through gdal, here are his comments;
It appears that GDAL has the same problem as ArcGIS, namely
that when I create a GeoTIFF using gdal_translate extracting
any band in VNP10.A2015183.1242.001.2017157163531.nc, the
longitude values for each GCP in the GeoTIFF are 180 degrees
too large.
The first GCP is:
GCP[ 0]: Id=1, Info=
(0.5,0.5) -> (205.183015823364,62.1505355834961,0)
I believe it should be:
GCP[ 0]: Id=1, Info=
(0.5,0.5) -> (25.183015823364,62.1505355834961,0)
We've basically exhausted things to try here. I was told
that you might have some suggestions of things to look at or
try to help determine what is causing this problem.
Any ideas or information is appreciated,
Doug Fowler
--
Doug Fowler, MODIS, VIIRS & ICESat Team Lead
National Snow & Ice Data Center
University of Colorado at Boulder
UCB 449, Boulder, CO 80309
ph (303)735-1357; fax (303)492-2468
email: dfowler@xxxxxxxxx
