Impact of Anthropogenic CO 2 on the CaCO 3 System in the Oceans
NSF National Center for Atmospheric Research · University of Southern California · +4 more institutions
Abstract
Rising atmospheric carbon dioxide (CO2) concentrations over the past two centuries have led to greater CO2 uptake by the oceans. This acidification process has changed the saturation state of the oceans with respect to calcium carbonate (CaCO3) particles. Here we estimate the in situ CaCO3 dissolution rates for the global oceans from total alkalinity and chlorofluorocarbon data, and we also discuss the future impacts of anthropogenic CO2 on CaCO3 shell-forming species. CaCO3 dissolution rates, ranging from 0.003 to 1.2 micromoles per kilogram per year, are observed beginning near the aragonite saturation horizon. The total water column CaCO3 dissolution rate for the global oceans is approximately 0.5 +/- 0.2…
Citation impact
- FWCI
- 50.56
- Percentile
- 100%
- References
- 43
Authors
7- RARichard A. FeelyCorresponding
NSF National Center for Atmospheric Research, University of Southern California, Pohang University of Science and Technology, Southern California Earthquake Center, California State University, San Marcos, NOAA Pacific Marine Environmental Laboratory
- CLChristopher L. Sabine
NSF National Center for Atmospheric Research, University of Southern California, Pohang University of Science and Technology, Southern California Earthquake Center, California State University, San Marcos, NOAA Pacific Marine Environmental Laboratory
- KLKitack Lee
NSF National Center for Atmospheric Research, University of Southern California, Pohang University of Science and Technology, Southern California Earthquake Center, California State University, San Marcos, NOAA Pacific Marine Environmental Laboratory
- WBW. Berelson
NSF National Center for Atmospheric Research, University of Southern California, Pohang University of Science and Technology, Southern California Earthquake Center, California State University, San Marcos, NOAA Pacific Marine Environmental Laboratory
- JKJoanie Kleypas
NSF National Center for Atmospheric Research, University of Southern California, Pohang University of Science and Technology, Southern California Earthquake Center, California State University, San Marcos, NOAA Pacific Marine Environmental Laboratory
Topics & keywords
- Aragonite
- Dissolution
- Calcium carbonate
- Alkalinity
- Carbon dioxide
- Saturation (graph theory)
- Carbonate
- Ocean acidification
- Life below water