Providing Waverider Buoys with Metrological Data. Problems and Solutions

D. G. Gryazin

Concern CSRI “Elektropribor”, JSC, Saint-Petersburg, Russian Federation

ITMO University, Saint-Petersburg, Russian Federation

e-mail: gdg@mt.IFMO.ru

Abstract

Metrological aspects of measuring sea waves by waverider buoys are considered in the paper. Various methods of calibration and the systematic problems in studying accuracy of the sea wave measurements by the waverider buoys are discussed. The difficulties arising in determining metrological characteristics of such measurements are mentioned. It is noted that the device primary transducer is the buoy itself. Absence of accurate determination of a wave height as well as considerable amount of methodical errors in the wave measurements by the buoys makes the task of their providing with metrological data nontrivial. Foreign experience in solving similar problems is analyzed; definition of the known calibration tests, their advantages and drawbacks is given. The components of the errors taking place in the wave measurements by the waverider buoys are analyzed. The Shtorm waverider buoy developed by CSRI “Elektropribor” as well as the methods and means of its calibration are described. Expediency of assessing accuracy of the sea wave statistical characteristics’ measurements by the waverider buoys at the sea test areas is grounded. It is shown that the method of such tests is approved by comparing the measurements performed by three wave gauges at the Black Sea Hydrophysical Polygon, RAS. Having been analyzed, the results of comparisons are represented. The obtained experience permits to define the means providing stability of metrological characteristics obtained by the waverider buoys.

Keywords

sea wave, waverider buoy, measurement, metrology

Acknowledgements

The study was carried out with a financial support of RFBR grant No.17-08-00010.

Original russian text

Original Russian Text © D. G. Gryazin, 2018, published in MORSKOY GIDROFIZICHESKIY ZHURNAL, Vol. 34, Iss. 2, pp. 156–164 (2018)

For citation

Gryazin, D.G., 2018. Providing Waverider Buoys with Metrological Data. Problems and Solutions. Physical Oceanography, 25(2), pp. 144-152. doi:10.22449/1573-160X-2018-2-144-152

DOI

10.22449/1573-160X-2018-2-144-152

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