Optical techniques for remote and in-situ characterization of particles pertinent to GEOTRACES

Emmanuel Boss, Lionel Guidi, Mary Jo Richardson, Lars Stemmann, Wilford Gardner, James K.B. Bishop, Robert F. Anderson, Robert M. Sherrell

Research output: Contribution to journalArticlepeer-review

37 Scopus citations


Field and laboratory characterization of marine particles is laborious and expensive. Proxies of particle properties have been developed that allow researchers to obtain high frequency distributions of such properties in space or time. We focus on optical techniques used to characterize marine particles in-situ, with a focus on GEOTRACES-relevant properties, such as bulk properties including particle mass, cross-sectional area, particle size distribution, particle shape information, and also single particle optical properties, such as individual particle type and size. We also address the use of optical properties of particles to infer particulate organic or inorganic carbon. In addition to optical sensors we review advances in imaging technology and its use to study marine particles in situ. This review addresses commercially available technology and techniques that can be used as a proxy for particle properties and the associated uncertainties with particular focus to open ocean environments, the focus of GEOTRACES.

Original languageAmerican English
Pages (from-to)43-54
Number of pages12
JournalProgress in Oceanography
StatePublished - Apr 1 2015

ASJC Scopus subject areas

  • Aquatic Science
  • Geology


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