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dc.coverage.spatial Tierra del Fuego es
dc.coverage.spatial Argentina es 2013-09-12T16:41:28Z 2013-09-12T16:41:28Z 2010
dc.description.abstract 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. en
dc.format.extent p. 29-41 es
dc.language en es
dc.title Lake-level variations of Lago Fagnano, Tierra del Fuego: observations, modelling and interpretation en
dc.type Articulo es
sedici.identifier.uri es
sedici.identifier.doi 10.3274/JL10-69-1-03
sedici.identifier.issn 1129-5767 es
sedici.creator.person Richter, Andreas Jorg es
sedici.creator.person Hormaechea, José Luis es
sedici.creator.person Dietrich, Reinhard es
sedici.creator.person Perdomo, Raúl Aníbal es
sedici.creator.person Fritsche, Mathias es
sedici.creator.person Del Cogliano, Daniel es
sedici.creator.person Liebsch, Gunter es
sedici.creator.person Mendoza, Luciano Pedro Oscar es
sedici.subject.materias Geofísica es
sedici.subject.decs Hidrodinámica es
sedici.subject.decs Lagos es
sedici.subject.decs Marea es
sedici.subject.decs Seiche es
sedici.description.fulltext true es Facultad de Ciencias Astronómicas y Geofísicas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Journal of Limnology es
sedici.relation.journalVolumeAndIssue vol. 69, no. 1 es

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Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)