Impact of Anthropogenic CO 2 on the CaCO 3 System in the Oceans

Author:

Feely Richard A.12345,Sabine Christopher L.12345,Lee Kitack12345,Berelson Will12345,Kleypas Joanie12345,Fabry Victoria J.12345,Millero Frank J.12345

Affiliation:

1. Pacific Marine Environmental Laboratory, National Oceanic and Atmospheric Administration, Seattle, WA 98115–6349, USA.

2. School of Environmental Science and Engineering, Pohang University of Science and Technology, San 31, Nam-gu, Hyoja-dong, Pohang, 790–784, Republic of Korea.

3. Department of Earth Sciences, University of Southern California, Los Angeles, Los Angeles, CA 90089–0740, USA.

4. Environmental and Societal Impacts Group, National Center for Atmospheric Research, Boulder, CO 80307–3000, USA.

5. Department of Biological Sciences, California State University San Marcos, San Marcos, CA 92096–0001, USA.

Abstract

Rising atmospheric carbon dioxide (CO 2 ) concentrations over the past two centuries have led to greater CO 2 uptake by the oceans. This acidification process has changed the saturation state ofthe oceans with respect to calcium carbonate (CaCO 3 ) particles. Here we estimate the in situ CaCO 3 dissolution rates for the global oceans from total alkalinity and chlorofluorocarbon data, and we also discuss the future impacts of anthropogenic CO 2 on CaCO 3 shell–forming species. CaCO 3 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 CaCO 3 dissolution rate for the global oceans is approximately 0.5 ± 0.2 petagrams of CaCO 3 -C per year, which is approximately 45 to 65% of the export production of CaCO 3 .

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference53 articles.

1. C. L. Sabineet al., in The Global Carbon Cycle: Integrating Humans, Climate, And The Natural World. SCOPE 62, C. B. Field, M. R. Raupach Eds. (Island Press, Washington, DC, 2004), pp. 17–46.

2. C. Prenticeet al., in Climate Change 2001: The Scientific Basis, Contribution of Working Group I to the Third Assessment Report of the Intergovernmental Panel on Climate Change, J. Houghton et al., Eds. (Cambridge Univ. Press, New York, 2001), pp. 183–238.

3. Ocean chemistry of the fossil fuel CO2signal: The haline signal of “business as usual”

4. Anthropogenic carbon and ocean pH

5. B. A. Seibel, V. J. Fabry, in Climate Change and Biodiversity: Synergistic Impacts, L. Hannah, T. Lovejoy, Eds. (Conservation International, Washington, DC, 2003), pp. 59–67.

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3