Performance of modern tide gauges: towards mm-level accuracy
International audience Considerable efforts are being made worldwide to upgrade tide gauge networks using new technologies. Because of the unique location of the Kerguelen Islands, the measurement of sea level there has received particular attention, with up to four systems equipped with modern sens...
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ftunivnantes:oai:HAL:hal-01247934v1 2023-05-15T17:02:03+02:00 Performance of modern tide gauges: towards mm-level accuracy Martin-Miguez, Belen Testut, Laurent Woppelmann, Guy LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Service d'observation SONEL (www.sonel.org) de l'INSU 2012-08-06 https://hal.science/hal-01247934 https://doi.org/10.3989/scimar.03618.18A en eng HAL CCSD Consejo Superior de Investigaciones Científicas info:eu-repo/semantics/altIdentifier/doi/10.3989/scimar.03618.18A hal-01247934 https://hal.science/hal-01247934 doi:10.3989/scimar.03618.18A ISSN: 0214-8358 Scientia Marina https://hal.science/hal-01247934 Scientia Marina, 2012, 76, pp.221-228. ⟨10.3989/scimar.03618.18A⟩ radar pressure gauges sea level changes sea level measurement tide gauges Kerguelen Islands GPS buoy [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2012 ftunivnantes https://doi.org/10.3989/scimar.03618.18A 2023-03-08T07:17:05Z International audience Considerable efforts are being made worldwide to upgrade tide gauge networks using new technologies. Because of the unique location of the Kerguelen Islands, the measurement of sea level there has received particular attention, with up to four systems equipped with modern sensors functioning simultaneously (two pressure tide gauges, a radar tide gauge, and a GPS-equipped buoy). We analysed and compared the sea level data obtained with these systems from 2003 to 2010, together with a time series of tide pole observations. This is the first time that a multi-comparison study with tide gauges has been undertaken over such a long time span and that the stability of modern radar tide gauges has been examined. The multi-comparison enabled us to evaluate the performance of the tide gauges in several frequency ranges, identify errors and estimate their magnitude. The drift of the pressure sensors (up to 8.0 mm/yr) was found to be one of the most relevant sources of systematic error. Other sources of difference such as clock drift, scale error and different locations of the instruments were also detected. After correcting the time series of sea level for these errors we estimated an upper bound for the radar instrumental error in field condition at ~0.3 cm. Article in Journal/Newspaper Kerguelen Islands Université de Nantes: HAL-UNIV-NANTES Kerguelen Kerguelen Islands Scientia Marina 76 S1 221 228 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
radar pressure gauges sea level changes sea level measurement tide gauges Kerguelen Islands GPS buoy [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
radar pressure gauges sea level changes sea level measurement tide gauges Kerguelen Islands GPS buoy [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Martin-Miguez, Belen Testut, Laurent Woppelmann, Guy Performance of modern tide gauges: towards mm-level accuracy |
topic_facet |
radar pressure gauges sea level changes sea level measurement tide gauges Kerguelen Islands GPS buoy [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience Considerable efforts are being made worldwide to upgrade tide gauge networks using new technologies. Because of the unique location of the Kerguelen Islands, the measurement of sea level there has received particular attention, with up to four systems equipped with modern sensors functioning simultaneously (two pressure tide gauges, a radar tide gauge, and a GPS-equipped buoy). We analysed and compared the sea level data obtained with these systems from 2003 to 2010, together with a time series of tide pole observations. This is the first time that a multi-comparison study with tide gauges has been undertaken over such a long time span and that the stability of modern radar tide gauges has been examined. The multi-comparison enabled us to evaluate the performance of the tide gauges in several frequency ranges, identify errors and estimate their magnitude. The drift of the pressure sensors (up to 8.0 mm/yr) was found to be one of the most relevant sources of systematic error. Other sources of difference such as clock drift, scale error and different locations of the instruments were also detected. After correcting the time series of sea level for these errors we estimated an upper bound for the radar instrumental error in field condition at ~0.3 cm. |
author2 |
LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Service d'observation SONEL (www.sonel.org) de l'INSU |
format |
Article in Journal/Newspaper |
author |
Martin-Miguez, Belen Testut, Laurent Woppelmann, Guy |
author_facet |
Martin-Miguez, Belen Testut, Laurent Woppelmann, Guy |
author_sort |
Martin-Miguez, Belen |
title |
Performance of modern tide gauges: towards mm-level accuracy |
title_short |
Performance of modern tide gauges: towards mm-level accuracy |
title_full |
Performance of modern tide gauges: towards mm-level accuracy |
title_fullStr |
Performance of modern tide gauges: towards mm-level accuracy |
title_full_unstemmed |
Performance of modern tide gauges: towards mm-level accuracy |
title_sort |
performance of modern tide gauges: towards mm-level accuracy |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-01247934 https://doi.org/10.3989/scimar.03618.18A |
geographic |
Kerguelen Kerguelen Islands |
geographic_facet |
Kerguelen Kerguelen Islands |
genre |
Kerguelen Islands |
genre_facet |
Kerguelen Islands |
op_source |
ISSN: 0214-8358 Scientia Marina https://hal.science/hal-01247934 Scientia Marina, 2012, 76, pp.221-228. ⟨10.3989/scimar.03618.18A⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3989/scimar.03618.18A hal-01247934 https://hal.science/hal-01247934 doi:10.3989/scimar.03618.18A |
op_doi |
https://doi.org/10.3989/scimar.03618.18A |
container_title |
Scientia Marina |
container_volume |
76 |
container_issue |
S1 |
container_start_page |
221 |
op_container_end_page |
228 |
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1766055279623929856 |