Editing Slack tide (section)

==Dodge tides==
Some localities have unusual tidal characteristics, such as [[Gulf St Vincent]], South Australia, where the amplitudes of the main semi-diurnal tide constituents are almost identical.  At [[neap tide]]s the semi-diurnal tide is virtually absent, resulting in the phenomenon known as a "dodge tide"<ref>[http://www.bom.gov.au/oceanography/projects/ntc/NTC_glossary.pdf Australian Government > Bureau of Meteorology > National Tidal Unit Glossary] Accessed 13 March 2015.</ref><ref>[http://www.bom.gov.au/oceanography/projects/ntc/dodge/dodge.shtml Australian Government > Bureau of Meteorology > Dodge tide] Accessed 13 March 2015.</ref>—a day-long period of slack water—occurring twice a month; this effect is accentuated near the equinoxes when the diurnal component also vanishes, resulting in a period of 2–3 days of slack water.<ref>Bye, J. A. T. (1976): Physical oceanography of Gulf St Vincent and Investigator Strait. In: [[Charles Rowland Twidale|Twidale, C. R.]], Tyler, M. J. & Webb, B. P. (Eds.), ''Natural history of the Adelaide Region''. Royal Society of SA Inc., Adelaide.</ref><ref>Bye, J.A.T. & Kämpf, J. (2008): Physical oceanography. '''In:''' Shepherd, S.A., Bryars, S., Kirkegaard, I.R., Harbison, P. & Jennings, J. T. (Eds.): ''Natural history of Gulf St Vincent''. Royal Society of South Australia Inc., Adelaide.</ref><ref>[http://msi.nga.mil/MSISiteContent/StaticFiles/NAV_PUBS/APN/Chapt-09.pdf ''The American Practical Navigator'', Chapter 9:Tides and Tidal Currents], pages 134-5. Accessed 3 September 2011.</ref>