Source: EPSG:9656 — ETRF2000-PL + Baltic 1986 height
compound horizontal + vertical reference system · Area of use: Poland - onshore
+proj=longlat +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +geoidgrids=pl_gugik_geoid2011-PL-KRON86-NH.tif +geoid_crs=WGS84 +vunits=m +no_defs +type=crsMore about EPSG:9656 →