File auxFile = TestData.file(this, "O3NO2-noZ.xml");
FileUtils.copyFileToDirectory(file, mosaic);
FileUtils.copyFileToDirectory(auxFile, mosaic);
file = new File(mosaic, "O3NO2-noZ.nc");
final Hints hints= new Hints(Hints.DEFAULT_COORDINATE_REFERENCE_SYSTEM, CRS.decode("EPSG:4326", true));
hints.put(Utils.AUXILIARY_FILES_PATH, new File(mosaic,"O3NO2-noZ.xml").getAbsolutePath()); // impose def
// Get format
final AbstractGridFormat format = (AbstractGridFormat) GridFormatFinder.findFormat(file.toURI().toURL(),hints);
final NetCDFReader reader = (NetCDFReader) format.getReader(file.toURI().toURL(), hints);