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dc.contributor.author
Santamaria Aguilar, Sara
dc.contributor.author
Schuerch, Mark
dc.contributor.author
Vafeidis, Athanasios T.
dc.contributor.author
Carretero, Silvina Claudia
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dc.date.available
2018-06-22T19:49:54Z
dc.date.issued
2017-11
dc.identifier.citation
Santamaria Aguilar, Sara; Schuerch, Mark; Vafeidis, Athanasios T.; Carretero, Silvina Claudia; Long-term trends and variability of water levels and tides in Buenos Aires and Mar del Plata, Argentina; Frontiers Research Foundation; Frontiers in Marine Science; 4; NOV; 11-2017; 1-15
dc.identifier.issn
2296-7745
dc.identifier.uri
http://hdl.handle.net/11336/49741
dc.description.abstract
We present an analysis of the long-term trends and variability of extreme water and tidal levels and the main tidal constituents using long-term records from two tide gauges in the wider region of the Rio de la Plata estuary: Buenos Aires (1905-2013) and Mar del Plata (1956-2013). We find significant long-term trends in both tidal levels and the main tidal constituents (M2, S2, K1, O1, and the overtide M4) from a running harmonic analysis in both locations. The tidal range decreased on average 0.63 mm y-1, as a result of an increase of the low water levels and a decrease of the high water levels. We also find a secular decrease in the amplitude of the semi-diurnal constituents and an increase of the diurnal ones, but of different magnitudes at each location, which suggests that different processes are producing these changes. In Buenos Aires, an increase of river discharge into the estuary seems to reduce the tidal range by hampering the propagation of the tidal wave into the estuary, whereas no influence of river discharge on water and tidal levels can be detected in Mar del Plata. We believe that other factors such as thermohaline changes or the rise of mean sea-level may be responsible for the observed tidal range decrease. Despite the tidal long-term trends, we find no significant trends in the meteorological component of the tide-gauge records other than an increase in the mean sea-level. In addition, we explore teleconnections between the variability of the meteorological component of the tide-gauge records and climate drivers.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Frontiers Research Foundation
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Argentina
dc.subject
Buenos Aires
dc.subject
Mar del Plata
dc.subject
Sea-Level
dc.subject
Secular Trends
dc.subject
Tide
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Variability
dc.subject
Water Level
dc.subject.classification
Oceanografía, Hidrología, Recursos Hídricos
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dc.subject.classification
Ciencias de la Tierra y relacionadas con el Medio Ambiente
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Long-term trends and variability of water levels and tides in Buenos Aires and Mar del Plata, Argentina
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2018-06-22T15:05:07Z
dc.journal.volume
4
dc.journal.number
NOV
dc.journal.pagination
1-15
dc.journal.pais
Suiza
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dc.description.fil
Fil: Santamaria Aguilar, Sara. Christian Albrechts Universität zu Kiel; Alemania
dc.description.fil
Fil: Schuerch, Mark. University of Cambridge; Reino Unido
dc.description.fil
Fil: Vafeidis, Athanasios T.. Christian Albrechts Universität zu Kiel; Alemania
dc.description.fil
Fil: Carretero, Silvina Claudia. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Frontiers in Marine Science
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.3389/fmars.2017.00380
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/articles/10.3389/fmars.2017.00380/full
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