Simulação bidimensional do fluxo da Geleira Lange, Ilha Rei George, Antártica
DOI:
https://doi.org/10.5540/tema.2003.04.02.0159Abstract
As bacias de drenagem glacial na Ilha Rei George recuaram mais que um quilômetro durante os últimos 40 anos, perdendo em torno de 7% da cobertura de gelo original. Esta redução ocorreu concomitantemente com o aumento da temperatura atmosférica em torno de 1.1 ºC. Neste trabalho, apresenta-se no contexto de diferenças finitas, um modelo numérico para simulação do fluxo da geleira de descarga Lange (Ilha Rei George, Antártica). Estima-se o estado de equilíbrio e as respostas morfológicas para mudanças na taxa de acumulação de gelo. O modelo computa a distribuição de velocidades ao longo da linha central longitudinal principal usando a lei do fluxo do gelo para calcular a deformação interna sem deslizamento basal e as respostas às mudanças na acumulação líquida. Os resultados sugerem uma geleira próximo ao estado estcionário.Downloads
Published
How to Cite
Issue
Section
License
Authors who publish in this journal agree to the following terms:
Authors retain copyright and grant the journal the right of first publication, with the work simultaneously licensed under the Creative Commons Attribution License that allows the sharing of the work with acknowledgment of authorship and initial publication in this journal.
Authors are authorized to assume additional contracts separately, for non-exclusive distribution of the version of the work published in this journal (eg, publish in an institutional repository or as a book chapter), with acknowledgment of authorship and initial publication in this journal.
Authors are allowed and encouraged to publish and distribute their work online (eg, in institutional repositories or on their personal page) at any point before or during the editorial process, as this can generate productive changes as well as increase impact and the citation of the published work (See The effect of open access).
This is an open access journal which means that all content is freely available without charge to the user or his/her institution. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the
author. This is in accordance with the BOAI definition of open access
Intellectual Property
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License under attribution BY.