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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

The Pattern of Sediment Dispersion in the Front Sector of the Stenhouse and Ajax Glaciers, Visca Anchorage, King George Island, Antarctica

作     者:Beatriz Ferraz Scigliano Kátia Kellem da Rosa Ana Teresa Cordeiro Cid Bastos Elisabete de Santis Braga 

作者机构: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 

出 版 物:《International Journal of Geosciences》 (地球科学国际期刊(英文))

年 卷 期:2014年第5卷第12期

页      面:1509-1520页

学科分类:1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

主  题:Remote Sensing Glaciomarine Circulation Suspended Sediment 

摘      要: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.

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