INSERT into spatial_ref_sys (srid, auth_name, auth_srid, proj4text, srtext) values (8051, 'EPSG', 8051, '+vunits=ft +no_defs +type=crs', 'VERT_CS["MSL depth (ft)",VERT_DATUM["Mean Sea Level",2005,AUTHORITY["EPSG","5100"]],UNIT["foot",0.3048,AUTHORITY["EPSG","9002"]],AXIS["Depth",DOWN],AUTHORITY["EPSG","8051"]]');