INVENTÁRIO DE LAGOS GLACIAIS NAS ILHAS NELSON E REI GEORGE, ANTÁRTICA MARÍTIMA

This study presents the first glacial lake inventory for Nelson and King George Island forelands, Maritime Antarctica. Landsat, Digital Globe, Planet Scope and Sentinel 2 data and Google Earth mapping were applied in lake identification. The geomorphometric characteristics were obtained with TanDEM-...

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Published in:Caminhos de Geografia
Main Authors: Araujo Gonçalves de Oliveira, Manoela, Petsch, Carina, Kellem da Rosa, Kátia, Vieira, Rosemary, Mattos Costa, Rafaela, Perondi, Cleiva, Cardia Simões, Jefferson
Format: Article in Journal/Newspaper
Language:Portuguese
Published: EDUFU - Editora da Universidade Federal de Uberlândia 2021
Subjects:
SIG
GIS
Online Access:https://seer.ufu.br/index.php/caminhosdegeografia/article/view/54688
https://doi.org/10.14393/RCG228054688
id ftunivfuberland:oai:ojs.www.seer.ufu.br:article/54688
record_format openpolar
spelling ftunivfuberland:oai:ojs.www.seer.ufu.br:article/54688 2023-05-15T13:39:21+02:00 INVENTÁRIO DE LAGOS GLACIAIS NAS ILHAS NELSON E REI GEORGE, ANTÁRTICA MARÍTIMA Araujo Gonçalves de Oliveira, Manoela Petsch, Carina Kellem da Rosa, Kátia Vieira, Rosemary Mattos Costa, Rafaela Perondi, Cleiva Cardia Simões, Jefferson 2021-04-05 application/pdf https://seer.ufu.br/index.php/caminhosdegeografia/article/view/54688 https://doi.org/10.14393/RCG228054688 por por EDUFU - Editora da Universidade Federal de Uberlândia https://seer.ufu.br/index.php/caminhosdegeografia/article/view/54688/31390 https://seer.ufu.br/index.php/caminhosdegeografia/article/view/54688 doi:10.14393/RCG228054688 Copyright (c) 2021 Manoela Araujo Gonçalves de Oliveira, Carina Petsch, Kátia Kellem da Rosa, Rosemary Vieira, Rafaela Mattos Costa, Cleiva Perondi, Jefferson Cardia Simões Caminhos de Geografia; Vol. 22 No. 80 (2021): Abril; 119-132 Caminhos de Geografia; Vol. 22 Núm. 80 (2021): Abril; 119-132 Caminhos de Geografia; v. 22 n. 80 (2021): Abril; 119-132 1678-6343 Áreas livres de gelo Ambiente marginal ao gelo Paraglacial SIG Forelands Ice-marginal environment Paraglacia GIS info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado pelos pares 2021 ftunivfuberland https://doi.org/10.14393/RCG228054688 2022-07-11T09:22:48Z This study presents the first glacial lake inventory for Nelson and King George Island forelands, Maritime Antarctica. Landsat, Digital Globe, Planet Scope and Sentinel 2 data and Google Earth mapping were applied in lake identification. The geomorphometric characteristics were obtained with TanDEM-X and REMA. There are 56 glacial lakes covering areas of 320.000 in Nelson Island, and 144 lakes covering areas of 2.016.169 in King George Island. There lakes are primarily located in coastal sectors (0-40m elevation) and lower slopes (0-20%) terrains in islands. There are lakes in forelands related to recent (i.g. ice-marginal and ice-contact lakes in proglacial areas presented in Admiralty and King George Bay) and old deglaciation (e.g. Harmony, Stanbury, Fildes, Potter, Weaver and Barton Peninsula). The lakes were not identified in Northern sectors of the islands. The characterization of the lakes can assist in the explanation of possible differences of secular evolution of the lakes, therefore the sprouting of lakes in the sectors frontals of glaciers shows how much these are unstable to the heating in the region, and of this form we can infer on the dynamics of each one of them. O presente trabalho apresenta o primeiro inventário dos lagos glaciais nas áreas livres de gelo nas ilhas Rei George e Nelson, Antártica Marítima. Foram usadas imagens Landsat, Digital Globe, Planet Scope e Sentinel 2 para vetorização e mapeamento dos lagos através do Google Earth. Para a análise geomorfométrica foram utilizados os MDE Tandem-X e REMA. Há 56 lagos na ilha Nelson e 144 lagos na ilha Rei George, cobrindo um total de 320.000 m² de área e 2.016.169 m² de área, respectivamente. Os lagos se distribuem principalmente nos setores costeiros com baixas declividades (0-20%) e elevações (0-40m) nas áreas expostas das ilhas. Os lagos são formados em setores recentemente em deglaciarização (os lagos de contato com o gelo e marginais ao gelo, como por exemplo, nas áreas proglaciais na baía do Almirantado e Rei George) e ... Article in Journal/Newspaper Antarc* Antarctica Antártica King George Island Nelson Island Portal de Periódicos UFU (Universidade Federal de Uberlândia) Barton ENVELOPE(-58.733,-58.733,-62.233,-62.233) Barton Peninsula ENVELOPE(-58.741,-58.741,-62.227,-62.227) Fildes ENVELOPE(-58.817,-58.817,-62.217,-62.217) George Bay ENVELOPE(-36.239,-36.239,-54.370,-54.370) Glacial Lake ENVELOPE(-129.463,-129.463,58.259,58.259) King George Bay ENVELOPE(-58.066,-58.066,-62.100,-62.100) King George Island Nelson Island ENVELOPE(-59.050,-59.050,-62.300,-62.300) Weaver ENVELOPE(-153.833,-153.833,-86.967,-86.967) Caminhos de Geografia 22 80 119 132
institution Open Polar
collection Portal de Periódicos UFU (Universidade Federal de Uberlândia)
op_collection_id ftunivfuberland
language Portuguese
topic Áreas livres de gelo
Ambiente marginal ao gelo
Paraglacial
SIG
Forelands
Ice-marginal environment
Paraglacia
GIS
spellingShingle Áreas livres de gelo
Ambiente marginal ao gelo
Paraglacial
SIG
Forelands
Ice-marginal environment
Paraglacia
GIS
Araujo Gonçalves de Oliveira, Manoela
Petsch, Carina
Kellem da Rosa, Kátia
Vieira, Rosemary
Mattos Costa, Rafaela
Perondi, Cleiva
Cardia Simões, Jefferson
INVENTÁRIO DE LAGOS GLACIAIS NAS ILHAS NELSON E REI GEORGE, ANTÁRTICA MARÍTIMA
topic_facet Áreas livres de gelo
Ambiente marginal ao gelo
Paraglacial
SIG
Forelands
Ice-marginal environment
Paraglacia
GIS
description This study presents the first glacial lake inventory for Nelson and King George Island forelands, Maritime Antarctica. Landsat, Digital Globe, Planet Scope and Sentinel 2 data and Google Earth mapping were applied in lake identification. The geomorphometric characteristics were obtained with TanDEM-X and REMA. There are 56 glacial lakes covering areas of 320.000 in Nelson Island, and 144 lakes covering areas of 2.016.169 in King George Island. There lakes are primarily located in coastal sectors (0-40m elevation) and lower slopes (0-20%) terrains in islands. There are lakes in forelands related to recent (i.g. ice-marginal and ice-contact lakes in proglacial areas presented in Admiralty and King George Bay) and old deglaciation (e.g. Harmony, Stanbury, Fildes, Potter, Weaver and Barton Peninsula). The lakes were not identified in Northern sectors of the islands. The characterization of the lakes can assist in the explanation of possible differences of secular evolution of the lakes, therefore the sprouting of lakes in the sectors frontals of glaciers shows how much these are unstable to the heating in the region, and of this form we can infer on the dynamics of each one of them. O presente trabalho apresenta o primeiro inventário dos lagos glaciais nas áreas livres de gelo nas ilhas Rei George e Nelson, Antártica Marítima. Foram usadas imagens Landsat, Digital Globe, Planet Scope e Sentinel 2 para vetorização e mapeamento dos lagos através do Google Earth. Para a análise geomorfométrica foram utilizados os MDE Tandem-X e REMA. Há 56 lagos na ilha Nelson e 144 lagos na ilha Rei George, cobrindo um total de 320.000 m² de área e 2.016.169 m² de área, respectivamente. Os lagos se distribuem principalmente nos setores costeiros com baixas declividades (0-20%) e elevações (0-40m) nas áreas expostas das ilhas. Os lagos são formados em setores recentemente em deglaciarização (os lagos de contato com o gelo e marginais ao gelo, como por exemplo, nas áreas proglaciais na baía do Almirantado e Rei George) e ...
format Article in Journal/Newspaper
author Araujo Gonçalves de Oliveira, Manoela
Petsch, Carina
Kellem da Rosa, Kátia
Vieira, Rosemary
Mattos Costa, Rafaela
Perondi, Cleiva
Cardia Simões, Jefferson
author_facet Araujo Gonçalves de Oliveira, Manoela
Petsch, Carina
Kellem da Rosa, Kátia
Vieira, Rosemary
Mattos Costa, Rafaela
Perondi, Cleiva
Cardia Simões, Jefferson
author_sort Araujo Gonçalves de Oliveira, Manoela
title INVENTÁRIO DE LAGOS GLACIAIS NAS ILHAS NELSON E REI GEORGE, ANTÁRTICA MARÍTIMA
title_short INVENTÁRIO DE LAGOS GLACIAIS NAS ILHAS NELSON E REI GEORGE, ANTÁRTICA MARÍTIMA
title_full INVENTÁRIO DE LAGOS GLACIAIS NAS ILHAS NELSON E REI GEORGE, ANTÁRTICA MARÍTIMA
title_fullStr INVENTÁRIO DE LAGOS GLACIAIS NAS ILHAS NELSON E REI GEORGE, ANTÁRTICA MARÍTIMA
title_full_unstemmed INVENTÁRIO DE LAGOS GLACIAIS NAS ILHAS NELSON E REI GEORGE, ANTÁRTICA MARÍTIMA
title_sort inventário de lagos glaciais nas ilhas nelson e rei george, antártica marítima
publisher EDUFU - Editora da Universidade Federal de Uberlândia
publishDate 2021
url https://seer.ufu.br/index.php/caminhosdegeografia/article/view/54688
https://doi.org/10.14393/RCG228054688
long_lat ENVELOPE(-58.733,-58.733,-62.233,-62.233)
ENVELOPE(-58.741,-58.741,-62.227,-62.227)
ENVELOPE(-58.817,-58.817,-62.217,-62.217)
ENVELOPE(-36.239,-36.239,-54.370,-54.370)
ENVELOPE(-129.463,-129.463,58.259,58.259)
ENVELOPE(-58.066,-58.066,-62.100,-62.100)
ENVELOPE(-59.050,-59.050,-62.300,-62.300)
ENVELOPE(-153.833,-153.833,-86.967,-86.967)
geographic Barton
Barton Peninsula
Fildes
George Bay
Glacial Lake
King George Bay
King George Island
Nelson Island
Weaver
geographic_facet Barton
Barton Peninsula
Fildes
George Bay
Glacial Lake
King George Bay
King George Island
Nelson Island
Weaver
genre Antarc*
Antarctica
Antártica
King George Island
Nelson Island
genre_facet Antarc*
Antarctica
Antártica
King George Island
Nelson Island
op_source Caminhos de Geografia; Vol. 22 No. 80 (2021): Abril; 119-132
Caminhos de Geografia; Vol. 22 Núm. 80 (2021): Abril; 119-132
Caminhos de Geografia; v. 22 n. 80 (2021): Abril; 119-132
1678-6343
op_relation https://seer.ufu.br/index.php/caminhosdegeografia/article/view/54688/31390
https://seer.ufu.br/index.php/caminhosdegeografia/article/view/54688
doi:10.14393/RCG228054688
op_rights Copyright (c) 2021 Manoela Araujo Gonçalves de Oliveira, Carina Petsch, Kátia Kellem da Rosa, Rosemary Vieira, Rafaela Mattos Costa, Cleiva Perondi, Jefferson Cardia Simões
op_doi https://doi.org/10.14393/RCG228054688
container_title Caminhos de Geografia
container_volume 22
container_issue 80
container_start_page 119
op_container_end_page 132
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