Ocean Acidification Victoria J. Fabry and Andrew G. Dickson Scripps Institution of Oceanography and...
-
Upload
mervyn-bond -
Category
Documents
-
view
213 -
download
0
Transcript of Ocean Acidification Victoria J. Fabry and Andrew G. Dickson Scripps Institution of Oceanography and...
![Page 1: Ocean Acidification Victoria J. Fabry and Andrew G. Dickson Scripps Institution of Oceanography and California State University San Marcos fabry@csusm.edu.](https://reader036.fdocuments.in/reader036/viewer/2022070409/56649e7f5503460f94b82a59/html5/thumbnails/1.jpg)
Ocean AcidificationOcean Acidification
Victoria J. Fabry and Andrew G. DicksonScripps Institution of Oceanography
and California State University San Marcos
![Page 2: Ocean Acidification Victoria J. Fabry and Andrew G. Dickson Scripps Institution of Oceanography and California State University San Marcos fabry@csusm.edu.](https://reader036.fdocuments.in/reader036/viewer/2022070409/56649e7f5503460f94b82a59/html5/thumbnails/2.jpg)
Atmospheric CO2 concentration at Mauna Loa Observatory, Hawaii
![Page 3: Ocean Acidification Victoria J. Fabry and Andrew G. Dickson Scripps Institution of Oceanography and California State University San Marcos fabry@csusm.edu.](https://reader036.fdocuments.in/reader036/viewer/2022070409/56649e7f5503460f94b82a59/html5/thumbnails/3.jpg)
Atmospheric CO2 concentration at Mauna Loa Observatory, Hawaii
Ocean pH at the Hawaii Ocean
Time-Series Site
![Page 4: Ocean Acidification Victoria J. Fabry and Andrew G. Dickson Scripps Institution of Oceanography and California State University San Marcos fabry@csusm.edu.](https://reader036.fdocuments.in/reader036/viewer/2022070409/56649e7f5503460f94b82a59/html5/thumbnails/4.jpg)
Effect of adding CO2 to seawater
increase in dissolved CO2
increases bicarbonate
decreases carbonate
hydrogen ion concentration increases
CO2 CO32 H2O Ä 2HCO3
pH = –log [H+] decreases
and the saturation state of calcium carbonate decreases
↔
![Page 5: Ocean Acidification Victoria J. Fabry and Andrew G. Dickson Scripps Institution of Oceanography and California State University San Marcos fabry@csusm.edu.](https://reader036.fdocuments.in/reader036/viewer/2022070409/56649e7f5503460f94b82a59/html5/thumbnails/5.jpg)
CO2 concentration in the atmosphere
Measured
![Page 6: Ocean Acidification Victoria J. Fabry and Andrew G. Dickson Scripps Institution of Oceanography and California State University San Marcos fabry@csusm.edu.](https://reader036.fdocuments.in/reader036/viewer/2022070409/56649e7f5503460f94b82a59/html5/thumbnails/6.jpg)
CO2 concentration in the atmosphere
Measured
IPCC scenarioA1FI
![Page 7: Ocean Acidification Victoria J. Fabry and Andrew G. Dickson Scripps Institution of Oceanography and California State University San Marcos fabry@csusm.edu.](https://reader036.fdocuments.in/reader036/viewer/2022070409/56649e7f5503460f94b82a59/html5/thumbnails/7.jpg)
1765 280 ppm
Aragonite saturation state(from corals’ point of view)
Extremely low Optimal
![Page 8: Ocean Acidification Victoria J. Fabry and Andrew G. Dickson Scripps Institution of Oceanography and California State University San Marcos fabry@csusm.edu.](https://reader036.fdocuments.in/reader036/viewer/2022070409/56649e7f5503460f94b82a59/html5/thumbnails/8.jpg)
2010 390 ppm
Extremely low Optimal
Aragonite saturation state(from corals’ point of view)
![Page 9: Ocean Acidification Victoria J. Fabry and Andrew G. Dickson Scripps Institution of Oceanography and California State University San Marcos fabry@csusm.edu.](https://reader036.fdocuments.in/reader036/viewer/2022070409/56649e7f5503460f94b82a59/html5/thumbnails/9.jpg)
2040 495 ppm
Extremely low Optimal
Aragonite saturation state(from corals’ point of view)
![Page 10: Ocean Acidification Victoria J. Fabry and Andrew G. Dickson Scripps Institution of Oceanography and California State University San Marcos fabry@csusm.edu.](https://reader036.fdocuments.in/reader036/viewer/2022070409/56649e7f5503460f94b82a59/html5/thumbnails/10.jpg)
2080 788 ppm
Extremely low Optimal
Aragonite saturation state(from corals’ point of view)
![Page 11: Ocean Acidification Victoria J. Fabry and Andrew G. Dickson Scripps Institution of Oceanography and California State University San Marcos fabry@csusm.edu.](https://reader036.fdocuments.in/reader036/viewer/2022070409/56649e7f5503460f94b82a59/html5/thumbnails/11.jpg)
1997 2008
Science, 2009
![Page 12: Ocean Acidification Victoria J. Fabry and Andrew G. Dickson Scripps Institution of Oceanography and California State University San Marcos fabry@csusm.edu.](https://reader036.fdocuments.in/reader036/viewer/2022070409/56649e7f5503460f94b82a59/html5/thumbnails/12.jpg)
![Page 13: Ocean Acidification Victoria J. Fabry and Andrew G. Dickson Scripps Institution of Oceanography and California State University San Marcos fabry@csusm.edu.](https://reader036.fdocuments.in/reader036/viewer/2022070409/56649e7f5503460f94b82a59/html5/thumbnails/13.jpg)
Sabine et al. (2004) & Doney (2006)
Distribution of excess CO2 in the oceans