Articles | Volume 10, issue 3
Biogeosciences, 10, 1937–1941, 2013
https://doi.org/10.5194/bg-10-1937-2013

Special issue: Arctic ocean acidification: pelagic ecosystem and biogeochemical...

Biogeosciences, 10, 1937–1941, 2013
https://doi.org/10.5194/bg-10-1937-2013

Technical note 20 Mar 2013

Technical note | 20 Mar 2013

Technical Note: The determination of enclosed water volume in large flexible-wall mesocosms "KOSMOS"

J. Czerny, K. G. Schulz, S. A. Krug, A. Ludwig, and U. Riebesell J. Czerny et al.
  • GEOMAR – Helmholtz Centre for Ocean Research Kiel, 24105 Kiel, Germany

Abstract. The volume of water enclosed inside flexible-wall mesocosm bags is hard to estimate using geometrical calculations and can be strongly variable among bags of the same dimensions. Here we present a method for precise water volume determination in mesocosms using salinity as a tracer. Knowledge of the precise volume of water enclosed allows establishment of exactly planned treatment concentrations and calculation of elemental budgets.

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