Investigation of a sound speed profilograph characteristics and correction of measurement results

by

A.N. Grekov, N.A. Grekov, Y.E. Shishkin

Institute of Natural and Technical Systems, Russian Federation, Sevastopol, Lenin St., 28

E-mail: ngrekov@nm.ru

DOI:10.33075/2220-5861-2017-4-24-30

UDC 551.46.08

Abstract:

   The metrological and space-time sound velocity characteristics of the profilograph are considered in the article. The sound speed sensor is considered in detail, its water exchange in the measuring base at various immersion velocities has been studied. A dynamic correction of the vertical profiles, connected with the movement of the device, has been carried out. The profiles of sound velocity in which their vertical stratification of the order of several centimeters are given. Recommendations on the use of the instrument in full-scale conditions from the shipboard are given.

Keywords: temperature, sound speed, method, salinity, error, modeling, dynamic characteristics, gradient.

Full text in PDF (RUS)

LIST OF REFERENCES

  1. IOC, SCOR and IAPSO, 2010: The international thermodynamic equation of seawater – 2010: Calculation and use of thermodynamic properties. Intergovernmental Oceanographic Commission, Manuals and Guides No. 56, UNESCO (English), 196 p.
  2. Leroy C.C., Robinson S.P., Goldsmith M.J. A new equation for the accurate calculation of sound speed in all oceans. The Journal of the Acoustical Society of America. 2008. Vol. 124. No 5. pp. 2774–2782.
  3. Grekov A.N., Grekov N.A., Sychev E.N. Profilografy skorosti zvuka i algoritm opredelenija plotnosti vody dlja okeanograficheskogo diapazona. Sistemy kontrolja okruzhajushhej sredy. Sevastopol’: IPTS. 2017. Vol. 8 (28). pp. 11–15.
  4. Christian de Moustier. Removal of nested heave loops from depth profiles of seawater conductivity and temperature. 2016. pp. 1–3. 10.1109. OCEANS.2016.7761422.

Loading