Ideas and perspectives: Southwestern tropical Atlantic coral growth response to atmospheric circulation changes induced by ozone depletion in Antarctica

Recent Southern Hemisphere (SH) atmospheric circulation, predominantly driven by stratospheric ozone depletion over Antarctica, has caused changes in climate across the extratropics. Here, we present evidence that the Brazilian coast (southwestern Atlantic) may have been impacted from both wind and...

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Bibliographic Details
Published in:Biogeosciences
Main Authors: Evangelista, Heitor, Wainer, Ilana, Sifeddine, Abdelfettah, Corrège, Thierry, Cordeiro, Renato C., Lamounier, Saulo, Godiva, Daniely, Shen, Chuan-Chou, Le Cornec, Florence, Turcq, Bruno, Lazareth, Claire E., Hu, Ching-Yi
Format: Article in Journal/Newspaper
Language:English
Published: Copernicus Publications 2016
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article
Verlagsveröffentlichung
Antarc*
Antarctica
Online Access:https://doi.org/10.5194/bg-13-2379-2016
https://noa.gwlb.de/receive/cop_mods_00013542
https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00013498/bg-13-2379-2016.pdf
https://bg.copernicus.org/articles/13/2379/2016/bg-13-2379-2016.pdf
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Summary:Recent Southern Hemisphere (SH) atmospheric circulation, predominantly driven by stratospheric ozone depletion over Antarctica, has caused changes in climate across the extratropics. Here, we present evidence that the Brazilian coast (southwestern Atlantic) may have been impacted from both wind and sea-surface temperature changes derived from this process. Skeleton analysis of massive coral species living in shallow waters off Brazil are very sensitive to air–sea interactions, and seem to record this impact. Growth rates of Brazilian corals show a trend reversal that fits the ozone depletion evolution, confirming that ozone impacts are far reaching and potentially affect coastal ecosystems in tropical environments.

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