MicroSoar: A New Instrument for Measuring Microscale Turbulence from Rapidly Moving Submerged Platforms Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/hh63t214g

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • A new high-frequency turbulence measuring instrument, MicroSoar, has been developed, tested, and used to make scalar variance dissipation rate measurements. MicroSoar was mounted on the undercarriage of SeaSoar, a depth-programmable winged platform, and towed by a ship, at speeds up to 7 kt, in a depth range of the sea surface to 120 m. Sensors carried by MicroSoar were a fast thermistor, a pressure sensor, a microscale capillary conductivity sensor, and a three-axis accelerometer. With appropriate assumptions about the local T–S relation, measurements of microscale conductivity fluctuations can often be used to directly determine temperature variance dissipation rate (χ[subscript]T), the Cox number (C[subscript]x), and the scalar diathermal turbulent diffusivity (K[subscript]T). Compared to conventional quasi-free-fall tethered vertically profiling instruments, MicroSoar's major advantage lies in its ability to sample large fluid volumes and large geographic areas in a short time, and to provide, rapidly and simply, two-dimensional (horizontal–vertical) representations of the distribution of oceanic mixing rates.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Dillon, T. M., J. A. Barth, A. Y. Erofeev, G. H. May, H. W. Wijesekera, 2003: MicroSoar: A New Instrument for Measuring Microscale Turbulence from Rapidly Moving Submerged Platforms. Journal of Atmospheric and Oceanic Technology, 20, 1671–1684.
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Replaces
Additional Information
  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2012-02-20T17:48:49Z No. of bitstreams: 1 BarthJA.CEOAS.MicroSoarNewInstrument.pdf: 946267 bytes, checksum: 3bb80f725690da5fb549a7733892f7ee (MD5)
  • Journal of Atmospheric and Oceanic Technology
  • Vol. 20 no. 11.
  • description.provenance : Made available in DSpace on 2012-02-20T17:48:49Z (GMT). No. of bitstreams: 1 BarthJA.CEOAS.MicroSoarNewInstrument.pdf: 946267 bytes, checksum: 3bb80f725690da5fb549a7733892f7ee (MD5) Previous issue date: 2003-11

Relationships

Parents:

This work has no parents.

Last modified

Downloadable Content

Download PDF

Items