Physical Sciences and Mathematics Commons^™

Observing Biogeochemical Cycles At Global Scales With Profiling Floats And Gliders: Prospects For A Global Array, Kenneth S. Johnson, William M. Berelson, Emmanuel S. Boss, Zanna Chase, Hervé Claustre, Steven R. Emerson, Nicolas Gruber, Arne Körtzinger, Mary Jane Perry, Stephen C. Riser

Marine Sciences Faculty Scholarship

Chemical and biological sensor technologies have advanced rapidly in the past five years. Sensors that require low power and operate for multiple years are now available for oxygen, nitrate, and a variety of bio-optical properties that serve as proxies for important components of the carbon cycle (e.g., particulate organic carbon). These sensors have all been deployed successfully for long periods, in some cases more than three years, on platforms such as profiling floats or gliders. Technologies for pH, pCO 2, and particulate inorganic carbon are maturing rapidly as well. These sensors could serve as the enabling technology for a global …