Tropical–Antarctic connections of an explosive cyclone in southern Brazil: rainfall stable isotope ratios and atmospheric analysis
This study analyzes the stable isotopic ratio (δ18O) and the synoptic characteristics of a precipitation event that occurred in the southernmost state of Brazil, Rio Grande do Sul, a region sensitive to explosive cyclogenesis in years with enhanced tropic-pole interactions. The main objective was to...
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ftarcticportal:oai:generic.eprints.org:2719 2023-12-10T09:39:02+01:00 Tropical–Antarctic connections of an explosive cyclone in southern Brazil: rainfall stable isotope ratios and atmospheric analysis Reis, Pedro Amaral Aquino, Francisco Eliseu Schossler, Venisse Bernardo, Ronaldo Torma Simões, Jefferson Cardia 2020-06 application/pdf http://library.arcticportal.org/2719/ http://library.arcticportal.org/2719/1/A2002003.pdf en eng Polar Research Institute of China - PRIC http://library.arcticportal.org/2719/1/A2002003.pdf Reis, Pedro Amaral and Aquino, Francisco Eliseu and Schossler, Venisse and Bernardo, Ronaldo Torma and Simões, Jefferson Cardia (2020) Tropical–Antarctic connections of an explosive cyclone in southern Brazil: rainfall stable isotope ratios and atmospheric analysis. Advances in Polar Science, 31 (2). pp. 103-111. Atmosphere Article PeerReviewed 2020 ftarcticportal 2023-11-15T23:54:41Z This study analyzes the stable isotopic ratio (δ18O) and the synoptic characteristics of a precipitation event that occurred in the southernmost state of Brazil, Rio Grande do Sul, a region sensitive to explosive cyclogenesis in years with enhanced tropic-pole interactions. The main objective was to evaluate the influence of tropical and Antarctic climate systems on the event. Cavity ring-down spectroscopy was used for the water isotopic analysis, and NCEP CFSv2 data were employed for the synoptic analysis of rainfall over a 48-h period. An Amazonian isotopic signature on precipitated water was identified. A strong, low-level meridional flow from the Amazon Basin, combined with the development of a frontal system, resulted in intense cyclogenesis that generated an explosive cyclone. Article in Journal/Newspaper Advances in Polar Science Antarc* Antarctic Polar Science Polar Science Arctic Portal Library Antarctic |
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Arctic Portal Library |
op_collection_id |
ftarcticportal |
language |
English |
topic |
Atmosphere |
spellingShingle |
Atmosphere Reis, Pedro Amaral Aquino, Francisco Eliseu Schossler, Venisse Bernardo, Ronaldo Torma Simões, Jefferson Cardia Tropical–Antarctic connections of an explosive cyclone in southern Brazil: rainfall stable isotope ratios and atmospheric analysis |
topic_facet |
Atmosphere |
description |
This study analyzes the stable isotopic ratio (δ18O) and the synoptic characteristics of a precipitation event that occurred in the southernmost state of Brazil, Rio Grande do Sul, a region sensitive to explosive cyclogenesis in years with enhanced tropic-pole interactions. The main objective was to evaluate the influence of tropical and Antarctic climate systems on the event. Cavity ring-down spectroscopy was used for the water isotopic analysis, and NCEP CFSv2 data were employed for the synoptic analysis of rainfall over a 48-h period. An Amazonian isotopic signature on precipitated water was identified. A strong, low-level meridional flow from the Amazon Basin, combined with the development of a frontal system, resulted in intense cyclogenesis that generated an explosive cyclone. |
format |
Article in Journal/Newspaper |
author |
Reis, Pedro Amaral Aquino, Francisco Eliseu Schossler, Venisse Bernardo, Ronaldo Torma Simões, Jefferson Cardia |
author_facet |
Reis, Pedro Amaral Aquino, Francisco Eliseu Schossler, Venisse Bernardo, Ronaldo Torma Simões, Jefferson Cardia |
author_sort |
Reis, Pedro Amaral |
title |
Tropical–Antarctic connections of an explosive cyclone in southern Brazil: rainfall stable isotope ratios and atmospheric analysis |
title_short |
Tropical–Antarctic connections of an explosive cyclone in southern Brazil: rainfall stable isotope ratios and atmospheric analysis |
title_full |
Tropical–Antarctic connections of an explosive cyclone in southern Brazil: rainfall stable isotope ratios and atmospheric analysis |
title_fullStr |
Tropical–Antarctic connections of an explosive cyclone in southern Brazil: rainfall stable isotope ratios and atmospheric analysis |
title_full_unstemmed |
Tropical–Antarctic connections of an explosive cyclone in southern Brazil: rainfall stable isotope ratios and atmospheric analysis |
title_sort |
tropical–antarctic connections of an explosive cyclone in southern brazil: rainfall stable isotope ratios and atmospheric analysis |
publisher |
Polar Research Institute of China - PRIC |
publishDate |
2020 |
url |
http://library.arcticportal.org/2719/ http://library.arcticportal.org/2719/1/A2002003.pdf |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Advances in Polar Science Antarc* Antarctic Polar Science Polar Science |
genre_facet |
Advances in Polar Science Antarc* Antarctic Polar Science Polar Science |
op_relation |
http://library.arcticportal.org/2719/1/A2002003.pdf Reis, Pedro Amaral and Aquino, Francisco Eliseu and Schossler, Venisse and Bernardo, Ronaldo Torma and Simões, Jefferson Cardia (2020) Tropical–Antarctic connections of an explosive cyclone in southern Brazil: rainfall stable isotope ratios and atmospheric analysis. Advances in Polar Science, 31 (2). pp. 103-111. |
_version_ |
1784893997726040064 |