A small "In situ" conductivity instrument

Pederson, A.

doi:10.1109/oceans.1973.1161255

Cited by 9 publications

(4 citation statements)

References 6 publications

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“…Our recently developed highly portable CTD profiler satisfies this requirement. Its lightness results from (1) the absence of slip rings in the winch (the recording equipment is mounted in the hub and rotates with the drum), (2) a conductivity probe [Pederson, 1973] that is 20 cm long and weighs less than 1 kg, and (3) the use of a hand-powered winch, which is feasible because of the light probe.…”

Section: A Lightweight Ctdmentioning

confidence: 99%

The barrow submarine canyon: A drain for the Chukchi Sea

Garrison¹,

Becker²

1976

J. Geophys. Res.

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Oceanographic measurements made in the spring through holes in the ice in an area off Barrow, where the Barrow Canyon forms a sloping trough from the shallow Chukchi Sea into the deep Beaufort Sea, have revealed two interacting water movements: (1) a flow of highly saline water from the shallow Chukchi Sea into the Beaufort Sea through the Barrow Canyon and (2) an uprising of Atlantic water from the depths of the Beapfort Sea into the Barrow Canyon.

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Section: A Lightweight Ctdmentioning

confidence: 99%

The barrow submarine canyon: A drain for the Chukchi Sea

Garrison¹,

Becker²

1976

J. Geophys. Res.

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“…SBE build standard CTD instruments which produce measurements that are high in both precision and accuracy. The conductivity measurement is performed in a cylindrical glass cell with a volume of 1.51 cm 3 containing three electrodes which ensures that the measurement is only affected by the volume within the cell (Gregg & Hess, 1985;Pederson, 1973;Pederson & Gregg, 1979). To be precise, the cell measures resistance, R cell , which is converted to the conductivity of the water, σ, by taking into account the cell geometry:…”

Section: Effect Of Frazil Entrainment On Conductivity Cellsmentioning

confidence: 99%

“…SBE build standard CTD instruments which produce measurements that are high in both precision and accuracy. The conductivity measurement is performed in a cylindrical glass cell with a volume of 1.51 cm 3 containing three electrodes which ensures that the measurement is only affected by the volume within the cell (Gregg & Hess, 1985; Pederson, 1973; Pederson & Gregg, 1979). To be precise, the cell measures resistance, R cell , which is converted to the conductivity of the water, σ , by taking into account the cell geometry:

{R}_{\mathit{cell}}=\frac{\rho l}{A}=\frac{l}{A\sigma }

with

\rho =\frac{1}{\sigma }

the resistivity of the water, l the effective length of the conductivity cell (which depends on cell length and water velocity though the cell), and A the cross‐sectional area of the sampled water.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Pseudofrazil Particle Entrainment on Salinity Measurements

Richter

Smith

Everts

et al. 2023

Earth and Space Science

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The effect of particles on accurate salinity measurements is relevant to all areas of oceanographic research where high particle concentrations occur (such as suspended sediment in estuaries or swash zones), or very precise salinity or density calculations are necessary (such as for supercooling measurements). Any particles in the ocean water will contribute to the density of the water parcel and influence measurements of density as well as salinity calculated from conductance measurements (e.g.,

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“…The primary instrument used to gather data during the MIZPAC 77 cruise was a hand-lowered CTD developed by the Applied Physics Laboratory, University of Washington (APL-UW) (Pederson, 1973 These effects were corrected by a computerized calculation.…”

Section: Conductivity-temperature-depth Recorder (Ctd)mentioning

confidence: 99%