An evaluation of global tidal models on the inner continental shelf of Argentina, South America
Nowadays several global tidal models, most of them freely available for the community, provide tidal sea level heights practically everywhere around the World Ocean, constituting powerful tools for scientists, oceanographers and users of different areas of geosciences. In addition, most of these glo...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_97816172_v_n_p235_Dragani |
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todo:paper_97816172_v_n_p235_Dragani2023-10-03T16:44:19Z An evaluation of global tidal models on the inner continental shelf of Argentina, South America Dragani, W. D'Onofrio, E. Fiore, M. Grismeyer, W. Oreiro, F. Argentine continental shelf Harmonic constants Modeled tide Observed tide Nowadays several global tidal models, most of them freely available for the community, provide tidal sea level heights practically everywhere around the World Ocean, constituting powerful tools for scientists, oceanographers and users of different areas of geosciences. In addition, most of these global models are frequently used to provide tidal heights at the open boundaries of regional high resolution coastal models. This work is an evaluation of the performance of three of the most recognized global tidal models: FES2004 (Lyard et al., 2006), GOT 4.7, an update of GOT00 (Ray, 1999) and TPXO 7.2, an update of TPXO 6 (Egbert et al., 1994; Egbert and Erofeeva, 2002). The tidal harmonic constants from these models are compared to the ones obtained from ten sea level data series gathered at tidal stations located along the Argentine coast (from the Río de la Plata estuary to Tierra del Fuego) and from twenty data series of sea level heights obtained on the crossing of the satellite tracks from the Ocean Topography Experiment (Topex/Poseidon: T/P) on the Argentine continental shelf (in the period 1992-2002). Four semidiurnal constituents (M2, S2, N2 and K2) and four diurnal ones (K1, O1, P1 and Q1) are studied and the corresponding harmonic vectorial differences of observed sea level and altimeter data series are presented and discussed. The main differences between harmonic amplitudes and phases obtained from observations and from global models are detected in coastal waters of the Río de la Plata (a shallow area characterized by a micro tidal regime). Such differences, in general, significantly decrease towards the south, where the tidal range is greater than 10 m and the tide is practically semidiurnal. © 2011 by Nova Science Publishers, Inc. All rights reserved. Fil:Dragani, W. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. CHAP info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_97816172_v_n_p235_Dragani |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Argentine continental shelf Harmonic constants Modeled tide Observed tide |
| spellingShingle |
Argentine continental shelf Harmonic constants Modeled tide Observed tide Dragani, W. D'Onofrio, E. Fiore, M. Grismeyer, W. Oreiro, F. An evaluation of global tidal models on the inner continental shelf of Argentina, South America |
| topic_facet |
Argentine continental shelf Harmonic constants Modeled tide Observed tide |
| description |
Nowadays several global tidal models, most of them freely available for the community, provide tidal sea level heights practically everywhere around the World Ocean, constituting powerful tools for scientists, oceanographers and users of different areas of geosciences. In addition, most of these global models are frequently used to provide tidal heights at the open boundaries of regional high resolution coastal models. This work is an evaluation of the performance of three of the most recognized global tidal models: FES2004 (Lyard et al., 2006), GOT 4.7, an update of GOT00 (Ray, 1999) and TPXO 7.2, an update of TPXO 6 (Egbert et al., 1994; Egbert and Erofeeva, 2002). The tidal harmonic constants from these models are compared to the ones obtained from ten sea level data series gathered at tidal stations located along the Argentine coast (from the Río de la Plata estuary to Tierra del Fuego) and from twenty data series of sea level heights obtained on the crossing of the satellite tracks from the Ocean Topography Experiment (Topex/Poseidon: T/P) on the Argentine continental shelf (in the period 1992-2002). Four semidiurnal constituents (M2, S2, N2 and K2) and four diurnal ones (K1, O1, P1 and Q1) are studied and the corresponding harmonic vectorial differences of observed sea level and altimeter data series are presented and discussed. The main differences between harmonic amplitudes and phases obtained from observations and from global models are detected in coastal waters of the Río de la Plata (a shallow area characterized by a micro tidal regime). Such differences, in general, significantly decrease towards the south, where the tidal range is greater than 10 m and the tide is practically semidiurnal. © 2011 by Nova Science Publishers, Inc. All rights reserved. |
| format |
CHAP |
| author |
Dragani, W. D'Onofrio, E. Fiore, M. Grismeyer, W. Oreiro, F. |
| author_facet |
Dragani, W. D'Onofrio, E. Fiore, M. Grismeyer, W. Oreiro, F. |
| author_sort |
Dragani, W. |
| title |
An evaluation of global tidal models on the inner continental shelf of Argentina, South America |
| title_short |
An evaluation of global tidal models on the inner continental shelf of Argentina, South America |
| title_full |
An evaluation of global tidal models on the inner continental shelf of Argentina, South America |
| title_fullStr |
An evaluation of global tidal models on the inner continental shelf of Argentina, South America |
| title_full_unstemmed |
An evaluation of global tidal models on the inner continental shelf of Argentina, South America |
| title_sort |
evaluation of global tidal models on the inner continental shelf of argentina, south america |
| url |
http://hdl.handle.net/20.500.12110/paper_97816172_v_n_p235_Dragani |
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