Zobrazeno 1 - 10
of 18
pro vyhledávání: '"RONALDO T. BERNARDO"'
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 96, Iss suppl 2 (2024)
Abstract This study investigated the chemical content of a shallow snow core (4.95 m) named TT 6, collected during a Brazilian traverse of the West Antarctic Ice Sheet in the 2014/2015 Austral summer. Stable isotope ratios (δD and δ18O) and ionic c
Externí odkaz:
https://doaj.org/article/bfe168b6fcf645c99faa64f888f2d67b
Autor:
Heather M. Clifford, Mariusz Potocki, Charles Rodda, Daniel Dixon, Sean Birkel, Michael Handley, Elena Korotkikh, Douglas Introne, Franciele Schwanck, Flavia A. Tavares, Ronaldo T. Bernardo, Filipe G. L. Lindau, Oscar Vilca Gomez, Harrison Jara-Infantes, Victor Bustínza Urviola, L. Baker Perry, Jonathan Maurer, Anton Seimon, Margit Schwikowski, Gino Casassa, Shugui Hou, Andrei V. Kurbatov, Kimberley R. Miner, Jefferson C. Simões, Paul A. Mayewski
Publikováno v:
Journal of Glaciology, Vol 69, Pp 693-707 (2023)
Shallow firn cores, in addition to a near-basal ice core, were recovered in 2018 from the Quelccaya ice cap (5470 m a.s.l) in the Cordillera Vilcanota, Peru, and in 2017 from the Nevado Illimani glacier (6350 m a.s.l) in the Cordillera Real, Bolivia.
Externí odkaz:
https://doaj.org/article/13a615f4cac4472aa5496c671e105092
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 95, Iss suppl 3 (2023)
Abstract A 22.48 m long ice core (BR-IC-4) was collected in the West Antarctic Ice Sheet (at 83°58’59.4” S, 80°07’01.4” W, 1,295 m above the sea level) during the Austral summer of 2004–2005, as a contribution to the International Trans-A
Externí odkaz:
https://doaj.org/article/e5871c23d6b243199f7c84838e8df983
Autor:
JOÃO G. ILHA, JEFFERSON C. SIMÕES, MANOELA B.P. PORTELLA, RONALDO T. BERNARDO, ISAÍAS U. THOEN, GINO CASASSA
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 95, Iss suppl 3 (2023)
Abstract This article compares isotopic, ionic and climatic data from two firn cores from the West Antarctic Ice Sheet (WAIS). The IC-02 (88°01’21.3”S , 82°04’21.7”W) and the IC-05 (82°30’30.8”S , 79°28’02.7”W) closer to the coast
Externí odkaz:
https://doaj.org/article/e8706a2d469841009832688d63170eae
Publikováno v:
Anais da Academia Brasileira de Ciências, Vol 94, Iss suppl 1 (2022)
Abstract This study investigated the water isotopic content (δ18O, δD, d-excess) of the surface snow along a 995 km traverse over the West Antarctic Ice Sheet from the Möller Ice Stream – Institute Ice Stream to the upper reaches of the Pine Isl
Externí odkaz:
https://doaj.org/article/5aeedf7bd5a945b2b59bdf50d9dc68b1
Autor:
Heather M. Clifford, Mariusz Potocki, Charles Rodda, Daniel Dixon, Sean Birkel, Michael Handley, Elena Korotkikh, Douglas Introne, Franciele Schwanck, Flavia A. Tavares, Ronaldo T. Bernardo, Filipe G. L. Lindau, Oscar Vilca Gomez, Harrison Jara-Infantes, Victor Bustínza Urviola, L. Baker Perry, Jonathan Maurer, Anton Seimon, Margit Schwikowski, Gino Casassa, Shugui Hou, Andrei V. Kurbatov, Kimberley R. Miner, Jefferson C. Simões, Paul A. Mayewski
Publikováno v:
Journal of Glaciology. :1-15
Shallow firn cores, in addition to a near-basal ice core, were recovered in 2018 from the Quelccaya ice cap (5470 m a.s.l) in the Cordillera Vilcanota, Peru, and in 2017 from the Nevado Illimani glacier (6350 m a.s.l) in the Cordillera Real, Bolivia.
Autor:
Heloisa Helena Karnas Hoefel, Marcia Arsego, Daniela Silva dos Santos Schneider, Margareth Pfitsher, Célia Rabaioli, Ronaldo T. Bernardo, Alexia Carla Wachholz Dossa, Andréa Alfaya Acuña, Carmen Eulalia Pozzer, Maria Edutânia Skroski Castro, Jeane Aparecida Gonzatti, Terezinha Neide Oliveira
Publikováno v:
American Journal of Infection Control. 47:1352-1357
Background Traditional resources, such as bundles, can help experts define essential steps of health product processing to prevent infections. The present study developed bundle content construction and validation criteria for central sterile supply
Autor:
Ronaldo T. Bernardo, Paul Andrew Mayewski, Jefferson Cardia Simões, Michael Handley, Franciele Schwanck
Publikováno v:
Geosciences = Geociências. 38:131-146
Esse trabalho apresenta 30 anos de deposição de doze elementos-traço (Al, Bi, Cd, Ce, Co, Cr, La, Li, Na, Pr, S e V) analisados por espectrometria de massas no testemunho de gelo Mount Johns (79°55'28" S, 94°23'18" O e 91,20 m de profundidade).
Autor:
Luciano Marquetto, Gino Casassa, Ronaldo T. Bernardo, Nicoli P. Gerhard, Flavia A. Tavares, Jefferson Cardia Simões
Publikováno v:
Pesquisas em Geociências; v. 47, n. 2 (2020): Pesquisas em Geociências; e094026
O testemunho de firn IC-02 (88°01’21,3"S e 82°04’21,7"W), atingindo 41,82 m de profundidade, foi coletado no manto de gelo da Antártica Oriental, durante uma travessia científica chileno-brasileira no verão austral de 2004/2005. Este estudo
Autor:
Isaías Ullmann Thoen, Nicoli P. Gerhard, Flavia A. Tavares, Jefferson Cardia Simões, Ronaldo T. Bernardo, Gino Casassa
Publikováno v:
Pesquisas em Geociências; v. 47, n. 3 (2020): Pesquisas em Geociências; e094947
Este trabalho investiga o conteúdo iônico dos 28,73 m superiores do testemunho BR-IC-2 (88°01'21,3"S; 82°04'21,7"W), coletado durante a travessia antártica chileno-brasileira no verão austral de 2004/05. As concentrações dos íons majoritári