Lake-level variations of Lago Fagnano, Tierra del Fuego: observations, modelling and interpretation

The lake-level variations of Lago Fagnano, the largest lake in Tierra del Fuego, southernmost South America, on time scales from a few minutes to three years are investigated using a geodetic approach and applying the tools of time series analysis. Based on pressure tide gauge records at three locat...

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Detalles Bibliográficos
Autores principales: Richter, Andreas Jorg, Hormaechea, José Luis, Dietrich, Reinhard, Perdomo, Raúl Aníbal, Fritsche, Mathias, Del Cogliano, Daniel Héctor, Liebsch, Gunter, Mendoza, Luciano Pedro Oscar
Formato: Articulo
Lenguaje:Inglés
Publicado: 2010
Materias:
Geofísica
Tierra del Fuego
Hidrodinámica
Argentina
Lagos
Marea
Seiche
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/29408
http://www.jlimnol.it/index.php/jlimnol/article/view/jlimnol.2010.29
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-29408
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Geofísica
Tierra del Fuego
Hidrodinámica
Argentina
Lagos
Marea
Seiche
spellingShingle Geofísica
Tierra del Fuego
Hidrodinámica
Argentina
Lagos
Marea
Seiche
Richter, Andreas Jorg
Hormaechea, José Luis
Dietrich, Reinhard
Perdomo, Raúl Aníbal
Fritsche, Mathias
Del Cogliano, Daniel Héctor
Liebsch, Gunter
Mendoza, Luciano Pedro Oscar
Lake-level variations of Lago Fagnano, Tierra del Fuego: observations, modelling and interpretation
topic_facet Geofísica
Tierra del Fuego
Hidrodinámica
Argentina
Lagos
Marea
Seiche
description The lake-level variations of Lago Fagnano, the largest lake in Tierra del Fuego, southernmost South America, on time scales from a few minutes to three years are investigated using a geodetic approach and applying the tools of time series analysis. Based on pressure tide gauge records at three locations in the lake precise lake-level time series are derived. The analysis of the observed variations in space, time and frequency domain leads to the separation of the principal force-response mechanisms. We show that the lake-level variations in Lago Fagnano can be described essentially as a combination of lake-level shift and tilt and of surface seiches. Regarding the lake-level response to air-pressure forcing, a significant departure from the inverse barometer model is found. Surface seiches dynamics are particularly intensive in Lago Fagnano pointing towards exceptionally low dissipative friction. An undisturbed series of seiches lasting eleven days is presented; and at least eleven longitudinal modes are identified. Based on the characterisation of the main contributions in space and time as well as their relation to the driving forces, a model for the transfer of the lake-level variations at a reference point to an arbitrary location in the lake with an accuracy of 1 cm is developed.
format Articulo
Articulo
author Richter, Andreas Jorg
Hormaechea, José Luis
Dietrich, Reinhard
Perdomo, Raúl Aníbal
Fritsche, Mathias
Del Cogliano, Daniel Héctor
Liebsch, Gunter
Mendoza, Luciano Pedro Oscar
author_facet Richter, Andreas Jorg
Hormaechea, José Luis
Dietrich, Reinhard
Perdomo, Raúl Aníbal
Fritsche, Mathias
Del Cogliano, Daniel Héctor
Liebsch, Gunter
Mendoza, Luciano Pedro Oscar
author_sort Richter, Andreas Jorg
title Lake-level variations of Lago Fagnano, Tierra del Fuego: observations, modelling and interpretation
title_short Lake-level variations of Lago Fagnano, Tierra del Fuego: observations, modelling and interpretation
title_full Lake-level variations of Lago Fagnano, Tierra del Fuego: observations, modelling and interpretation
title_fullStr Lake-level variations of Lago Fagnano, Tierra del Fuego: observations, modelling and interpretation
title_full_unstemmed Lake-level variations of Lago Fagnano, Tierra del Fuego: observations, modelling and interpretation
title_sort lake-level variations of lago fagnano, tierra del fuego: observations, modelling and interpretation
publishDate 2010
url http://sedici.unlp.edu.ar/handle/10915/29408
http://www.jlimnol.it/index.php/jlimnol/article/view/jlimnol.2010.29
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