PATH GDAL_DATA GDAL_DRIVER_PATH GDAL_FILENAME_IS_UTF8 GEOTIFF_CSV GISBASE GRASS_HTML_BROWSER GRASS_PROJSHARE GRASS_PYTHON GRASS_SH GRASS_WISH JPEGMEM NLS_LANG OSGEO4W_ROOT PROJ_LIB PYTHONHOME PYTHONPATH QGIS_PREFIX_PATH QT_PLUGIN_PATH QT_RASTER_CLIP_LIMIT VSI_CACHE VSI_CACHE_SIZE O4W_QT_PREFIX O4W_QT_BINARIES O4W_QT_PLUGINS O4W_QT_LIBRARIES O4W_QT_TRANSLATIONS O4W_QT_HEADERS PGEO_DRIVER_TEMPLATE OGR_SKIP