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GNSS at NSW tide gauges... of CORS!

Citation

Janssen, V and Commins, R and McElroy, S, GNSS at NSW tide gauges... of CORS!, Position, Simon Cooper, Australia, 65, pp. 38-42. (2013) [Magazine Article]


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Copyright 2013 Intermedia Group Pty Ltd.

Official URL: http://www.spatialsource.com.au/

Abstract

Tide gauges measure and record the water level over time. The tide gauge records available from Fort Denison, Sydney Harbour and the Pilot Station, Newcastle in New South Wales (NSW) are two of the longest continuous records in the southern hemisphere. By virtue, these are of considerable national and international importance in relation to sea level rise and climate change research. For the precise determination of any sea level change, it is fundamental to know whether or not the land upon which the tide gauge is located is actually moving. Is the sea level rising or the land falling? Global Navigation Satellite System (GNSS) Continuously Operating Reference Stations (CORS) are the ideal candidates to provide accurate and continuous measurements of land movement at tide gauge locations. This article outlines the high value of augmenting tide gauge records with GNSS CORS. It also provides an insight into the considerable difficulties encountered in the installation of such CORS in sensitive, heritage-listed and harsh marine environments. We focus on the recent construction of two CORS at the aforementioned tide gauges, which have been integrated into the CORSnet-NSW network to deliver high-accuracy positioning infrastructure for NSW.

Item Details

Item Type:Magazine Article
Research Division:Earth Sciences
Research Group:Geophysics
Research Field:Geodesy
Objective Division:Environmental Management
Objective Group:Other environmental management
Objective Field:Other environmental management not elsewhere classified
UTAS Author:Janssen, V (Dr Volker Janssen)
ID Code:90365
Year Published:2013
Deposited By:Geography and Environmental Studies
Deposited On:2014-04-01
Last Modified:2014-06-10
Downloads:250 View Download Statistics

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