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...
| Main Authors: | , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2016-04-01
|
| Series: | Biogeosciences |
| Online Access: | http://www.biogeosciences.net/13/2379/2016/bg-13-2379-2016.pdf |
| 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. |
|---|---|
| ISSN: | 1726-4170 1726-4189 |