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Oceanography in 2025 Proceedings of a Workshop (2009) / Chapter Skim
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Marine Biogeochemistry in 2025--Kenneth S. Johnson
Pages 130-134

The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.


From page 130...
... These sensor networks will permit ocean scientists to quantitatively observe fundamental biogeochemical processes such as rates of nutrient supply, net community production, physical controls on bloom development (e.g., the Sverdrup Hypothesis) , dynamics of oxygen minimum zones and their impacts on denitrification, and carbon export throughout the ocean with a level of detail hitherto impossible.
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From page 131...
... , the data do not resolve vertical structure and many high latitude areas are not cloud-free. The result is that we have little understanding of how ocean biogeochemistry is changing in response to natural climate oscillations such as El Niño and PDO or to anthropogenic climate changes driven by burning fossil fuels.
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From page 132...
... Numerical models will continuously assimilate this biogeochemical data and offer real time assessments of biogeochemical processes throughout the ocean. Shipboard research will focus primarily on process studies that are conducted within the framework of the background sensor array.
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From page 133...
... deployed on an Apex profiling float near Hawaii. Real Johnson_Figure2.eps time data is available at http://www.mbari.org/chemsensor/floatviz.htm.
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From page 134...
... 2008. Ocean Metabolism Observed with Oxygen Sensors on Profiling Floats in the Pacific.
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Key Terms

  • profiling float
  • carbon export
  • ocean biogeochemistry
  • ocean color
  • sensor response

  • sensor networks
  • oxygen sensors
  • biogeochemical processes
  • apex profiling
  • net community

  • carbon cycle
  • nitrate measurements
  • climate oscillations
  • sensors deployed
  • temporal responses

  • canary islands
  • ocean data
  • satellites excel
  • gas forcing
  • little sensor

  • studies using
  • argo float
  • burning fossil
  • monitor significant
  • past five

  • process studies
  • effect transistor
  • sufficiently affordable
  • observe fundamental
  • selective field


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