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The Pattern of Sediment Dispersion in the Front Sector of the Stenhouse and Ajax Glaciers, Visca Anchorage, King George Island, Antarctica
Instituto Oceanográfico da Universidade de Sao Paulo, Laboratório de Nutrientes, Micronutrientes e Elementos Traco nos Oceanos—Praca do Oceanográfico, 191, CEP 055-8-120 Cidade Universitária, Sao Paulo, Brazil
Universidade Federal do Rio Grande do Sul, UFRGS, Centro Polar e Climático—CPC, Departamento de Geografia—Instituto de Geociências, Av. Bento Goncalves, 9500, Porto Alegre, Brazil
Instituto Oceanográfico da Universidade de Sao Paulo, Laboratório de Nutrientes, Micronutrientes e Elementos Traco nos Oceanos—Praca do Oceanográfico, 191, CEP 055-8-120 Cidade Universitária, Sao Paulo, Brazil
Instituto Oceanográfico da Universidade de Sao Paulo, Laboratório de Nutrientes, Micronutrientes e Elementos Traco nos Oceanos—Praca do Oceanográfico, 191, CEP 055-8-120 Cidade Universitária, Sao Paulo, Brazil
- 1 Instituto Oceanográfico da Universidade de Sao Paulo, Laboratório de Nutrientes, Micronutrientes e Elementos Traco nos Oceanos—Praca do Oceanográfico, 191, CEP 055-8-120 Cidade Universitária, Sao Paulo, Brazil
- 2 Universidade Federal do Rio Grande do Sul, UFRGS, Centro Polar e Climático—CPC, Departamento de Geografia—Instituto de Geociências, Av. Bento Goncalves, 9500, Porto Alegre, Brazil
- 3 Instituto Oceanográfico da Universidade de Sao Paulo, Laboratório de Nutrientes, Micronutrientes e Elementos Traco nos Oceanos—Praca do Oceanográfico, 191, CEP 055-8-120 Cidade Universitária, Sao Paulo, Brazil
- 4 Instituto Oceanográfico da Universidade de Sao Paulo, Laboratório de Nutrientes, Micronutrientes e Elementos Traco nos Oceanos—Praca do Oceanográfico, 191, CEP 055-8-120 Cidade Universitária, Sao Paulo, Brazil
International Journal of Geosciences·Volume 05 (2014)·Pages 1509–1520·Published 14 November 2014·DOI10.4236/ijg.2014.512123
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Abstract
This study investigated the dispersal pattern of suspended sediment in the areas near the Stenhouse and Ajax glaciers, Visca Anchorage, Martel Inlet, King George Island, Antarctica. This study was conducted using visible band processing of Quickbird high-resolution spatial images obtained in October 2006. The methodology was also based on the collection and interpretation of data obtained from water samples collected in Admiralty Bay in December 2004. The digital processing of satellite images was performed using a classification method based on the reflectance characteristics of water. The classified images improved visual identification of the dispersion pattern of suspended sediments in the study area. These data were related to the interpretation of analyses conducted on suspended particulate matter (SPM) in the water. The sediment dispersal pattern observed may be associated with glacial erosion processes, their input of meltwater from the front of the glaciers into the study area, detritus flow processes and glaciomarine circulation in the region.
KeywordsRemote SensingGlaciomarine CirculationSuspended Sediment
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