Instrumentation Requirements for Small Scale Towed Temperature Measurements.

Abstract

Measurements of horizontal ocean temperature structure are difficult to obtain by towing sensors from research vessels because the tow cable induces sensor platform motions which contaminate the data. In this report, temperature data which previously were acquired in the thermocline with special care are used to specify the acceptable level of motion and to prescribe appropriate sensor noise levels. In the swell-induced ship motion band, for example, the rms vertical displacements of the sensors should be less than several centimeters and temperature sensors should resolve fluctuations of one millidegree Celsius in regions of high (approx 0.1 C/m) temperature gradient.

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Document Details

Document Type
Technical Report
Publication Date
Mar 28, 1984
Accession Number
ADA139897

Entities

People

  • J. P. Dugan
  • W. D. Morris

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Bandwidth
  • Classification
  • Conductivity
  • Energy Levels
  • Frequency
  • Instrumentation
  • Internal Waves
  • Measurement
  • Microstructure
  • Oceans
  • Sargasso Sea
  • Security
  • Ship Motion
  • Standards
  • Temperature Gradients
  • Thermoclines
  • Towed Bodies

Readers

  • Acoustics.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers
  • Thermal Physics or Thermal Science.