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...
Published in: | Journal of Coastal Research |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Coastal Education and Research Foundation, Inc
2008
|
Subjects: | |
Online Access: | https://doi.org/10.2112/07-0844.1 http://ecite.utas.edu.au/54517 |
id |
ftunivtasecite:oai:ecite.utas.edu.au:54517 |
---|---|
record_format |
openpolar |
spelling |
ftunivtasecite:oai:ecite.utas.edu.au:54517 2023-05-15T13:40:51+02:00 Coastal Tide Gauge Calibration: A Case Study at Macquarie Island Using GPS Buoy Techniques Watson, CS Coleman, R Handsworth, R 2008 https://doi.org/10.2112/07-0844.1 http://ecite.utas.edu.au/54517 en eng Coastal Education and Research Foundation, Inc http://dx.doi.org/10.2112/07-0844.1 Watson, CS and Coleman, R and Handsworth, R, Coastal Tide Gauge Calibration: A Case Study at Macquarie Island Using GPS Buoy Techniques, Journal of Coastal Research, 24, (4) pp. 1071-1079. ISSN 0749-0208 (2008) [Refereed Article] http://ecite.utas.edu.au/54517 Engineering Geomatic Engineering Geodesy Refereed Article PeerReviewed 2008 ftunivtasecite https://doi.org/10.2112/07-0844.1 2019-12-13T21:27:28Z 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 (5430 S, 15857 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 stateCdependent 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 eCite UTAS (University of Tasmania) Antarctic Southern Ocean Journal of Coastal Research 244 1071 1079 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Engineering Geomatic Engineering Geodesy |
spellingShingle |
Engineering Geomatic Engineering Geodesy Watson, CS Coleman, R Handsworth, R Coastal Tide Gauge Calibration: A Case Study at Macquarie Island Using GPS Buoy Techniques |
topic_facet |
Engineering Geomatic Engineering Geodesy |
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 (5430 S, 15857 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 stateCdependent 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 |
publisher |
Coastal Education and Research Foundation, Inc |
publishDate |
2008 |
url |
https://doi.org/10.2112/07-0844.1 http://ecite.utas.edu.au/54517 |
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 |
http://dx.doi.org/10.2112/07-0844.1 Watson, CS and Coleman, R and Handsworth, R, Coastal Tide Gauge Calibration: A Case Study at Macquarie Island Using GPS Buoy Techniques, Journal of Coastal Research, 24, (4) pp. 1071-1079. ISSN 0749-0208 (2008) [Refereed Article] http://ecite.utas.edu.au/54517 |
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 |
_version_ |
1766141552223059968 |