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Laura Ramajo (Chile), COP20, Lima, December 2014

"I was able to participate in the exhibition stand under the slogan HOT, SOUR AND BREATHLESS sponsored by the Plymouth Marine Lab (UK), the International Atomic Energy Agency (IAEA), Scripps Institution of Oceanography and CMBC (USA), and Centro de Investigación e Innovación para el Cambio Climático (CIICC) of Universidad Santo Tomás (Chile). Delegates and observers from around the world heard about how the increase in atmospheric CO2 is warming, acidifying and de-oxygenating the oceans with the respective ecologic, social and economic consequences."

Abed El Rahman HASSOUN (Lebanon), SOLAS Summer School 2013

"OA-ICC [...] provided for me the opportunity to present my research work to the international ocean research community, to meet experts and colleagues from all over the world and discuss with them about my results, share ideas and build a strong network with peers for future scientific collaborations."

Intercomparison exercises

IAEA Environment Laboratories

Focal point:
Mr Minhan Dai, State Key Laboratory of Marine Environmental Science, China


Facilitate and promote intercomparison of key measured and derived ocean acidification variables to support development of a rigorous unified global data set.

Our approach

Support international intercomparions exercises

Key measurements and indices of ocean acidification are made by different investigators with different techniques. To understand acidification at the global scale, these measurements from different sources must be made consistent and combined into a single global database. In addition, because ocean acidification research is in its infancy there is a clear and increasing need to standardize experimental protocols, such as those used to conduct perturbation experiments in mesocosms. These issues were highlighted in the Guide to Best Practices in Ocean Acidification Research and Data Reporting published in 2010 but more effort is needed to build on this original investment. Hence the OA-ICC supports a number of related intercomparison exercises:

  • Compare software packages that compute carbonate chemistry (in cooperation with the International Ocean Carbon Coordination Project)
  • Compare techniques to measure calcification (in the planning stages)
  • Compare boron isotope measurements, a technique to assess past pH, across labs with shared carbonate samples (in the planning stages)

Useful resources