Defining the seaward extent of New Zealand's coastal zone

Gibbs, Mark T., Hobday, A. J., Sanderson, B., & Hewitt, C. L. (2006) Defining the seaward extent of New Zealand's coastal zone. Estuarine, Coastal and Shelf Science, 66(1-2), pp. 240-254.

View at publisher


The seaward extent of New Zealand's coastal zone (defined here in a biophysical sense as the area of terrigenous influence) was determined from remotely sensed ocean colour and turbidity data. The cross-shore behavior of the colour and turbidity fields were quantified at a number of transects around the coastline and the locations where these fields changed from coastal to oceanic signatures were identified. Results from these analyses suggest that the coastal zone can extend several hundreds of kilometers offshore. Furthermore, the seaward extent determined from these analyses was not correlated to the underlying bathymetry of the continental shelf and slope; features commonly used to define the offshore extent of coastal zones. The estimated seaward limits determined from the analyses of the remotely sensed data were compared to limited available in situ data and predictions from a numerical circulation model. Observations of coastal zooplankton species several hundreds of kilometers offshore suggest good agreement with the predicted seaward extent of coastal zones determined from the remotely sensed data. Offshore transport of surface particles predicted by the circulation model also suggested that pelagic organisms and suspended inorganic particles may be advected offshore at least several hundreds of kilometers.

Impact and interest:

6 citations in Scopus
Search Google Scholar™
6 citations in Web of Science®

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

ID Code: 97771
Item Type: Journal Article
Refereed: Yes
Keywords: Ballast water, Circulation model, Coastal zone, New Zealand, SeaWiFS, coastal water, ocean color, Australasia
DOI: 10.1016/j.ecss.2005.08.015
ISSN: 0272-7714
Copyright Owner: 2006 Academic Press
Deposited On: 29 Jul 2016 06:14
Last Modified: 02 Aug 2016 02:54

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page