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Methods for biogeochemical studies of sea ice : the state of the art, caveats, and recommendations

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Title: Methods for biogeochemical studies of sea ice : the state of the art, caveats, and recommendations
Authors: Miller, Lisa A. Browse this author
Fripiat, Francois Browse this author
Else, Brent G.T. Browse this author
Bowman, Jeff S. Browse this author
Brown, Kristina A. Browse this author
Collins, R. Eric Browse this author
Ewert, Marcela Browse this author
Fransson, Agneta Browse this author
Gosselin, Michel Browse this author
Lannuzel, Delphine Browse this author
Meiners, Klaus M. Browse this author
Michel, Christine Browse this author
Nishioka, Jun Browse this author →KAKEN DB
Nomura, Daiki Browse this author →KAKEN DB
Papadimitriou, Stathys Browse this author
Russell, Lynn M. Browse this author
Sørensen, Lise Lotte Browse this author
Thomas, David N. Browse this author
Tison, Jean-Louis Browse this author
van Leeuwe, Maria A. Browse this author
Vancoppenolle, Martin Browse this author
Wolff, Eric W. Browse this author
Zhou, Jiayun Browse this author
Issue Date: 23-Jan-2015
Publisher: University of California Press
Journal Title: Elementa : Science of the Anthropocene
Volume: 3
Start Page: 38
Publisher DOI: 10.12952/journal.elementa.000038
Abstract: Over the past two decades, with recognition that the ocean’s sea-ice cover is neither insensitive to climate change nor a barrier to light and matter, research in sea-ice biogeochemistry has accelerated significantly, bringing together a multi-disciplinary community from a variety of fields. This disciplinary diversity has contributed a wide range of methodological techniques and approaches to sea-ice studies, complicating comparisons of the results and the development of conceptual and numerical models to describe the important biogeochemical processes occurring in sea ice. Almost all chemical elements, compounds, and biogeochemical processes relevant to Earth system science are measured in sea ice, with published methods available for determining biomass, pigments, net community production, primary production, bacterial activity, macronutrients, numerous natural and anthropogenic organic compounds, trace elements, reactive and inert gases, sulfur species, the carbon dioxide system parameters, stable isotopes, and water-ice-atmosphere fluxes of gases, liquids, and solids. For most of these measurements, multiple sampling and processing techniques are available, but to date there has been little intercomparison or intercalibration between methods. In addition, researchers collect different types of ancillary data and document their samples differently, further confounding comparisons between studies. These problems are compounded by the heterogeneity of sea ice, in which even adjacent cores can have dramatically different biogeochemical compositions. We recommend that, in future investigations, researchers design their programs based on nested sampling patterns, collect a core suite of ancillary measurements, and employ a standard approach for sample identification and documentation. In addition, intercalibration exercises are most critically needed for measurements of biomass, primary production, nutrients, dissolved and particulate organic matter (including exopolymers), the CO2 system, air-ice gas fluxes, and aerosol production. We also encourage the development of in situ probes robust enough for long-term deployment in sea ice, particularly for biological parameters, the CO2 system, and other gases.
Type: article
Appears in Collections:水産科学院・水産科学研究院 (Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 野村 大樹

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