Special Publication No. 9 Permanent Committee for Tides and Mean Sea Level   Preface   Contents   Introduction   1.  Tides, sea level, and water currents   2.  Tide gauges   3.  Survey and levelling   4.  Current meters   5.  Australian standard ports   6.  Digital data handling   7.  Contact list, useful links, and bibliography   7.1  Australian authorities 7.2  Links 7.3  Further reading     Download a printable version of SP-9 (PDF~1.4 Meg)