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Fall 2011 Writing 20:Ocean Acidification August 31, 2011 Lecture 1:

Fall 2011 Writing 20:Ocean Acidification August 31, 2011 Lecture 1: “Introduction to Ocean Acidification”. Some of this lecture obtained from http://aslo.org/lectures/11_005/11_005_rfeely_sdoney.html. Outline. Overview of “The Other CO 2 Problem” The chemistry Measuring and monitoring

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Fall 2011 Writing 20:Ocean Acidification August 31, 2011 Lecture 1:

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  1. Fall 2011 Writing 20:Ocean Acidification August 31, 2011 Lecture 1: “Introduction to Ocean Acidification” Some of this lecture obtained from http://aslo.org/lectures/11_005/11_005_rfeely_sdoney.html

  2. Outline • Overview of “The Other CO2 Problem” • The chemistry • Measuring and monitoring • Local influences on ocean acidification

  3. Pg = petagram = 1012 g

  4. pH ↓ 0.1 since industrial revolution From Doney et al. 2009

  5. Uncertainties

  6. Outline • Overview of “The Other CO2 Problem” • The chemistry • Measuring and monitoring • Local influences on ocean acidification

  7. pH scale pH = - log [H+] Acid is a substance that donates H+ ionsBase is a chemical that accepts H+ ions

  8. Two key biological processes relevant to acid-base chemistry in the oceans: • Calcium carbonate (CaCO3) production • Photosynthesis (carbon fixation)

  9. Role of Photosynthesis

  10. Additional Terminology DIC pCO2 B TA different pH terms

  11. Outline • Overview of “The Other CO2 Problem” • The chemistry • Measuring and monitoring • Local influences on ocean acidification

  12. Note: pH scale is reversed

  13. Outline • Overview of “The Other CO2 Problem” • The chemistry • Measuring and monitoring • Local influences on ocean acidification

  14. http://www.whoi.edu/OCB-OA/FAQs/ http://www.pmel.noaa.gov/co2/story/Ocean+Acidification http://oceanacidification.wordpress.com/ http://tos.org/oceanography/issues/issue_archive/22_4.html http://www.us-ocb.org/publications/OCB_OA_rept.pdf http://www.whoi.edu/sites/OceanAcidificationMeeting

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