NDLI: Stability of an artificially nourished beach, Balaena Bay, Wellington Harbour, New Zealand

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Stability of an artificially nourished beach, Balaena Bay, Wellington Harbour, New Zealand

Content Provider	Scilit
Author	Carter, Lionel Mitchell, John S.
Copyright Year	1985
Description	Balaena Bay, Wellington Harbour, New Zealand, has a small pocket beach that was covered originally by pebbles and cobbles. In February and October 1982, the beach was nourished with sandy granular gravel, the stability of which was monitored until February 1984. Although isolated from oceanic swell, the new beach readily responded to locally generated wind waves which induced both northwards and southwards longshore drift. The net effect was erosion of the southern beach, aggradation over the central beach, and minor fluctuations at the northern end. Yet despite this mobility nearly all the nourishment sediment was retained in the littoral zone. Beach volumes, calculated for each survey, varied little and sediment distribution patterns revealed negligable transport of nourishment sediment to adjacent beaches and offshore areas. Stability is further confirmed by compositional data which record no preferential loss of the sandstone, argillite, and quartz components. The only compositional changes were the incorporation into the new beach of small (< 10%) quantities of sediment derived from the old beach surface and from biogenic productivity.
Related Links	http://www.tandfonline.com/doi/pdf/10.1080/00288330.1985.9516117?needAccess=true
Ending Page	552
Page Count	18
Starting Page	535
ISSN	00288330
e-ISSN	11758805
DOI	10.1080/00288330.1985.9516117
Journal	New Zealand Journal of Marine and Freshwater Research
Issue Number	4
Volume Number	19
Language	English
Publisher	Informa UK Limited
Publisher Date	1985-12-01
Access Restriction	Open
Subject Keyword	Journal: New Zealand Journal of Marine and Freshwater Research Oceanography Beach Stability Nourishment Sediment Transport Coastal Morphology Beach Gravel Sediment Composition Wind Waves Pocket Beach Balaena Bay Wellington Harbour
Content Type	Text
Resource Type	Article
Subject	Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Water Science and Technology

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