MEASUREMENTS OF DIFFUSIVE SUBLAYER THICKNESSES IN THE OCEAN BY ALABASTER DISSOLUTION, AND THEIR IMPLICATIONS FOR THE MEASUREMENTS OF BENTHIC FLUXES
Academic Article
Overview
Research
Identity
Additional Document Info
Other
View All
Overview
abstract
A simple method to compare flow levels consists of measurements of gypsum dissolution rates inside benthic chambers and on the sea floor. The measurement of the diffusion-controlled dissolution rate of gypsum allows the estimation of the diffusive sublayer thickness and the time-averaged bottom stress on the seafloor. This method had previously been intercalibrated with the stress sensor method in flumes and inside benthic chambers. We describe here free-vehicle deployments of alabaster plates on the bottom of the ocean which gave results consistent with hydrodynamic theory. -from Authors