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

TY - JOUR

T1 - Optical techniques for remote and in-situ characterization of particles pertinent to GEOTRACES

AU - Boss, Emmanuel

AU - Guidi, Lionel

AU - Richardson, Mary Jo

AU - Stemmann, Lars

AU - Gardner, Wilford

AU - Bishop, James K.B.

AU - Anderson, Robert F.

AU - Sherrell, Robert M.

N1 - Funding Information: This paper arose from the 3rd GEOTRACES Data-Model Synergy Workshop in November 2011 at Universitat Autònoma de Barcelona, Spain. Additional support for that workshop came from SCOR, through support to SCOR from the US NSF (Grant OCE-0938349 and OCE-1243377 ) and from a US NSF grant to the US GEOTRACES Project Office ( OCE-0850963 ) and US NSF support for J Bishop ( OCE 0964888 ). We thank Heidi Sosik and an anonymous reviewer for comments and editing suggestions, which significantly improved an earlier version of this manuscript. Publisher Copyright: © 2014 Elsevier Ltd.

PY - 2015/4/1

Y1 - 2015/4/1

N2 - 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.

AB - 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.

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U2 - https://doi.org/10.1016/j.pocean.2014.09.007

DO - https://doi.org/10.1016/j.pocean.2014.09.007

M3 - Article

SN - 0079-6611

VL - 133

SP - 43

EP - 54

JO - Progress in Oceanography

JF - Progress in Oceanography

ER -