Webinar speaker: Dr. Eric Mortenson, Postdoctoral Researcher at Commonwealth Scientific and Industrial Research Organization (CSIRO), Hobart, Australia
Description: The Southern Ocean accounts for nearly half of the global ocean’s sink of anthropogenic carbon. Despite this important contribution, many climate models do not represent the mesoscale features that characterize the region due to limited spatial resolution. Here we apply a high-resolution ocean model that incorporates biogeochemistry with high-emission (RCP8.5) forcing in order to identify regions of pronounced change due to carbon uptake into the near future. We find that the annual uptake of carbon in the Southern Ocean south of 40° S is projected to double over the first half of the 21st century. The changes due to the increase in carbon will lead to acidification and lowering of aragonite saturation. We will present regions where changes to carbon system variables are respectively more and less pronounced to inform the siting of near-future observations.
The GOA-ON webinar series has four sponsoring organizations:
- (1) GOA-ON, the Global Ocean Acidification Observing Network,
- (2) NOAA, the United States National Oceanic & Atmospheric Administration,
- (3) IAEA OA-ICC, the International Atomic Energy Agency – Ocean Acidification International Coordination Centre, and
- (4) IOC-UNESCO – the Intergovernmental Oceanographic Commission of the United Nations Educational, Scientific and Cultural Organization For more information, please visit www.goa-on.org
GOA-ON, YouTube, 14 July 2021. Text and video.