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Keynote Speeches
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Biogeochemical-Argo: Status and Implementation Plan Wednesday 9th @ 1610-1650, Conference Hall Kenneth Johnson* , Monterey Bay Aquarium Research Institute Herve Claustre, Monterey Bay Aquarium Research Institute Presenter Email: johnson@mbari.org |
Biogeochemical-Argo is the extension of the Argo array of profiling floats to include floats that are equipped with biogeochemical sensors for pH, oxygen, nitrate, chlorophyll, suspended particles, and downwelling irradiance. Robust sensors now allow profiling floats to observe biogeochemical properties with sufficient accuracy for climate studies throughout the global ocean, including seasonally ice-covered waters. The floats have enough power to operate for as much as 7 years, enabling seasonal and interannual changes in biogeochemical processes to be resolved. This talk will provide a summary of sensor performance and the significant scientific results that have been obtained with biogeochemical sensors on profiling floats. It will also provide an update on plans to implement a global array of floats. Computer and statistical models indicate an array of 1000 biogeochemical floats will provide a transformative impact on our knowledge of oceanic biogeochemical and carbon cycles. With a mean float lifetime near 4 years, a sustained array requires approximately 250 replacements each year. A detailed Biogeochemical-Argo Science and Implementation Plan is available at http://biogeochemical-argo.org/.
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