Coastal tide gauge calibration: a case study at Macquarie Island using GPS buoy techniques.
Tide gauges remain the fundamental instrument used to measure water level in the coastal environment. Issues surrounding the calibration and vertical datum control of tide gauges are therefore fundamental in studies involving the determination of absolute sea level and its variation over time. Macqu...
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Online Access: | https://eprints.utas.edu.au/9932/ https://eprints.utas.edu.au/9932/1/Tide_gauge_calibration_2008_Watson.pdf https://doi.org/10.2112/07-0844.1 |
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ftunivtasmania:oai:eprints.utas.edu.au:9932 2023-05-15T13:36:47+02:00 Coastal tide gauge calibration: a case study at Macquarie Island using GPS buoy techniques. Watson, CS Coleman, R Handsworth, R 2008-07 application/pdf https://eprints.utas.edu.au/9932/ https://eprints.utas.edu.au/9932/1/Tide_gauge_calibration_2008_Watson.pdf https://doi.org/10.2112/07-0844.1 en eng https://eprints.utas.edu.au/9932/1/Tide_gauge_calibration_2008_Watson.pdf Watson, CS, Coleman, R and Handsworth, R 2008 , 'Coastal tide gauge calibration: a case study at Macquarie Island using GPS buoy techniques.' , Journal of Coastal Research, vol. 24, no. 4 , pp. 1071-1079 , doi:10.2112/07-0844.1 <http://dx.doi.org/10.2112/07-0844.1>. cc_utas Acoustic tide gauge sea level GPS buoy calibration methodology Article PeerReviewed 2008 ftunivtasmania https://doi.org/10.2112/07-0844.1 2020-05-30T07:23:44Z Tide gauges remain the fundamental instrument used to measure water level in the coastal environment. Issues surrounding the calibration and vertical datum control of tide gauges are therefore fundamental in studies involving the determination of absolute sea level and its variation over time. Macquarie Island, located in Australian sub- Antarctic waters (54°30' S, 158°57' E), represents one of the few possible locations in the Southern Ocean to observe sea level using traditional tide gauge techniques. The wave and atmospheric climatology of the region, coupled with a rugged coastline, makes the operation of a modern tide gauge installation extremely difficult. To overcome many of these difficulties, researchers use an acoustic gauge operated within an inclined shaft that is drilled through a coastal rocky outcrop. The calibration requirements of the gauge are therefore problematic and require special consideration to enable the accurate calculation of mean sea level and its change over time. We present results from a novel application of a GPS-equipped buoy to achieve an in situ calibration of the tide gauge, solving for scale, vertical offset, and sea state-dependent bias parameters. The methodology provides a new, high precision technique using available instrumentation, allowing users to maximise the oceanographic and geodetic value of tide gauge observations. Article in Journal/Newspaper Antarc* Antarctic Macquarie Island Southern Ocean University of Tasmania: UTas ePrints Antarctic Southern Ocean Journal of Coastal Research 244 1071 1079 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
English |
topic |
Acoustic tide gauge sea level GPS buoy calibration methodology |
spellingShingle |
Acoustic tide gauge sea level GPS buoy calibration methodology Watson, CS Coleman, R Handsworth, R Coastal tide gauge calibration: a case study at Macquarie Island using GPS buoy techniques. |
topic_facet |
Acoustic tide gauge sea level GPS buoy calibration methodology |
description |
Tide gauges remain the fundamental instrument used to measure water level in the coastal environment. Issues surrounding the calibration and vertical datum control of tide gauges are therefore fundamental in studies involving the determination of absolute sea level and its variation over time. Macquarie Island, located in Australian sub- Antarctic waters (54°30' S, 158°57' E), represents one of the few possible locations in the Southern Ocean to observe sea level using traditional tide gauge techniques. The wave and atmospheric climatology of the region, coupled with a rugged coastline, makes the operation of a modern tide gauge installation extremely difficult. To overcome many of these difficulties, researchers use an acoustic gauge operated within an inclined shaft that is drilled through a coastal rocky outcrop. The calibration requirements of the gauge are therefore problematic and require special consideration to enable the accurate calculation of mean sea level and its change over time. We present results from a novel application of a GPS-equipped buoy to achieve an in situ calibration of the tide gauge, solving for scale, vertical offset, and sea state-dependent bias parameters. The methodology provides a new, high precision technique using available instrumentation, allowing users to maximise the oceanographic and geodetic value of tide gauge observations. |
format |
Article in Journal/Newspaper |
author |
Watson, CS Coleman, R Handsworth, R |
author_facet |
Watson, CS Coleman, R Handsworth, R |
author_sort |
Watson, CS |
title |
Coastal tide gauge calibration: a case study at Macquarie Island using GPS buoy techniques. |
title_short |
Coastal tide gauge calibration: a case study at Macquarie Island using GPS buoy techniques. |
title_full |
Coastal tide gauge calibration: a case study at Macquarie Island using GPS buoy techniques. |
title_fullStr |
Coastal tide gauge calibration: a case study at Macquarie Island using GPS buoy techniques. |
title_full_unstemmed |
Coastal tide gauge calibration: a case study at Macquarie Island using GPS buoy techniques. |
title_sort |
coastal tide gauge calibration: a case study at macquarie island using gps buoy techniques. |
publishDate |
2008 |
url |
https://eprints.utas.edu.au/9932/ https://eprints.utas.edu.au/9932/1/Tide_gauge_calibration_2008_Watson.pdf https://doi.org/10.2112/07-0844.1 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Macquarie Island Southern Ocean |
genre_facet |
Antarc* Antarctic Macquarie Island Southern Ocean |
op_relation |
https://eprints.utas.edu.au/9932/1/Tide_gauge_calibration_2008_Watson.pdf Watson, CS, Coleman, R and Handsworth, R 2008 , 'Coastal tide gauge calibration: a case study at Macquarie Island using GPS buoy techniques.' , Journal of Coastal Research, vol. 24, no. 4 , pp. 1071-1079 , doi:10.2112/07-0844.1 <http://dx.doi.org/10.2112/07-0844.1>. |
op_rights |
cc_utas |
op_doi |
https://doi.org/10.2112/07-0844.1 |
container_title |
Journal of Coastal Research |
container_volume |
244 |
container_start_page |
1071 |
op_container_end_page |
1079 |
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1766083929829277696 |