ESTIMATION OF THE WANDA GLACIER (SOUTH SHETLANDS) SEDIMENT EROSION RATE USING NUMERICAL MODELLING

Authors

  • Kátia Kellem Rosa Professora na Universidade Federal da Fronteira Sul, Geógrafa mestre, doutoranda em Geociências na Universidade Federal do Rio Grande do Sul
  • Rosemary Vieira Universidade Federal Fluminense
  • Jefferson Cardia Simões Universidade Federal do Rio Grande do Sul. Instituto Nacional da Criosfera.

DOI:

https://doi.org/10.20502/rbg.v13i4.288

Keywords:

Numeric model glacial erosion, glacial sediment production rate, glacial dynamics, climatic variability

Abstract

Glacial sediment yield results from glacial erosion and is influenced by several factors including glacial retreat rate, ice flow velocity and thermal regime. This paper estimates the contemporary subglacial erosion rate and sediment yield of Wanda Glacier (King George Island, South Shetlands). This work also examines basal sediment evacuation mechanisms by runoff and glacial erosion processes during the subglacial transport. This is small temperate glacier that has seen retreating for the last decades. In this work, we examine basal sediment evacuation mechanisms by runoff and analyze glacial erosion processes occurring during subglacial transport. The glacial erosion rate at Wanda Glacier, estimated using a numerical model that consider sediment evacuated to outlet streams, ice flow velocity, ice thickness and glacier area, is 1.1 ton m yr-1.

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Author Biographies

Kátia Kellem Rosa, Professora na Universidade Federal da Fronteira Sul, Geógrafa mestre, doutoranda em Geociências na Universidade Federal do Rio Grande do Sul

Professora da Universidade Federal da Fronteira Sul. Mestre em Geociências na Universidade Federal do Rio Grande do Sul. Doutoranda no Programa de Pós Graduação de Geociências na UFRGS.

Rosemary Vieira, Universidade Federal Fluminense

Doutora e professora na Universidade Federal Fluminense.

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Published

2013-09-16

How to Cite

Rosa, K. K., Vieira, R., & Simões, J. C. (2013). ESTIMATION OF THE WANDA GLACIER (SOUTH SHETLANDS) SEDIMENT EROSION RATE USING NUMERICAL MODELLING. Revista Brasileira De Geomorfologia, 13(4). https://doi.org/10.20502/rbg.v13i4.288

Issue

Vol. 13 No. 4 (2012): OUT - DEZ

Section

Articles

License

Author (s) retain copyright and grant the journal right of first publication with the work simultaneously licensed under the Creative Commons Attribution License that allows sharing the work with recognition of its initial publication in this journal.

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