Coastal Restoration Trust of New Zealand

Coastal Dune Ecosystem Reference Database

Stability of some New Zealand coastal inlets Journal Paper

Author
Heath, R.A.
Year
1975
Journal / Source
New Zealand Journal of Marine and Freshwater Research
Volume
9
Pages
449-457
Keywords
Tidal flow, tidal compartments, tides, deposition, inlets, estuaries, estuarine
Summary
The relation of tidal compartments to entrance cross-sectional areas is examined for 20 coastal inlets. Sixteen inlets conform to a linear relationship, which is consistent with stable entrances the sizes of which are determined by the ability of the tidal flow to transport sediment. Based on this criterion deposition should be taking place at the entrances of the other four inlets: Wellington, Lyttelton, and Akaroa harbours, and Paterson Inlet. Available data confirm this for Wellington and Lyttelton Harbours.