[Qgis-user] QGIS UTM projection of longitudes > 180 degrees

[Eric Fielding]

I have some geophysical data (subducting slab depth) that is stored in NetCDF
raster format (from this download site 
https://earthquake.usgs.gov/data/slab/models.php
<https://earthquake.usgs.gov/data/slab/models.php>  ). I am working with the
file that is for Mexico and Central America in a regular WGS84
longitude-latitude grid (CRS EPSG:4326), and it has the longitudes all as
positive numbers, i.e. from 254 to 279 degrees. When I load this in QGIS and
plot it in the original EPSG:4326 projection, it plots in the positive
longitude as expected. When I try to use the on-the-fly CRS transformation
to plot the map in UTM zone 14 (EPSG:32614), the raster does not plot. I
have other data in CRS 4326 (raster and vector) that has negative longitudes
and that plots in the UTM zone 14 map view. When I do plots with the Generic
Mapping Tools (GMT) software, it does not care whether the longitudes are
negative or > 180 degrees. Do I need to shift my gridded data to have the
negative longitudes to work with it in QGIS? 



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