Story: Ocean currents and tides

Low tide at Manukau Harbour

Low tide at Manukau Harbour

Estuaries like Manukau Harbour change with the outgoing tide from a coastal inlet to mudflats. Currents in estuaries are mainly generated by tides, and wash sediment in and out along channels visible at low tide.

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GNS Science
Reference: CN22762
Photograph by Lloyd Homer

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How to cite this page:

Craig Stevens and Stephen Chiswell, 'Ocean currents and tides - Fiords, estuaries and river plumes', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/photograph/5937/low-tide-at-manukau-harbour (accessed 24 September 2021)

Story by Craig Stevens and Stephen Chiswell, published 12 Jun 2006