INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (9518, 'EPSG', 9518, '+proj=longlat +datum=WGS84 +vunits=m +no_defs +type=crs', 'COMPD_CS["WGS 84 + EGM2008 height",GEOGCS["WGS 84",DATUM["WGS_1984",SPHEROID["WGS 84",6378137,298.257223563,AUTHORITY["EPSG","7030"]],AUTHORITY["EPSG","6326"]],PRIMEM["Greenwich",0,AUTHORITY["EPSG","8901"]],UNIT["degree",0.0174532925199433,AUTHORITY["EPSG","9122"]],AUTHORITY["EPSG","4326"]],VERT_CS["EGM2008 height",VERT_DATUM["EGM2008 geoid",2005,AUTHORITY["EPSG","1027"]],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AXIS["Gravity-related height",UP],AUTHORITY["EPSG","3855"]],AUTHORITY["EPSG","9518"]]');