Identifying wave and turbulence components in wind-driven shallow basins

Krisztián Homoródi, J. Józsa, Tamás Krámer, Giuseppe Ciraolo, Carmelo Nasello

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Wind-induced waves play an important role in shallow lake hydro- and sediment dynamics. That is why field measurements are important for the validation of their estimation methods, especially in shallow waters. In the first part of the present paper a method is introduced to improve the interpretation of the measured data, applicable both for pressure and velocity data. Replacing the turbulence-affected tail of the measured spectrum with a fitted power function causes a considerable 8-10% difference in the derived bulk wave parameters so this procedure is worth to be done. In the second part an appropriate technique to obtain wave features from 3D velocity time series will be described. The applicability of the presented velocity-based estimation method will be proved by the analysis of field measurements. By velocity decomposition used for the reconstruction of wave features one could also analyse the depth-related differences in the turbulence accompanying the wave motion.

Original languageEnglish
Pages (from-to)87-95
Number of pages9
JournalPeriodica Polytechnica: Civil Engineering
Volume56
Issue number1
DOIs
Publication statusPublished - 2012

Fingerprint

Turbulence
turbulence
basin
estimation method
Lakes
Time series
Sediments
shallow water
time series
decomposition
Decomposition
lake
sediment
Water

Keywords

  • Lagoon
  • Shallow lake
  • Turbulence
  • Velocity decomposition
  • Wave measurement
  • Wave motion

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Geotechnical Engineering and Engineering Geology

Cite this

Identifying wave and turbulence components in wind-driven shallow basins. / Homoródi, Krisztián; Józsa, J.; Krámer, Tamás; Ciraolo, Giuseppe; Nasello, Carmelo.

In: Periodica Polytechnica: Civil Engineering, Vol. 56, No. 1, 2012, p. 87-95.

Research output: Contribution to journalArticle

Homoródi, Krisztián ; Józsa, J. ; Krámer, Tamás ; Ciraolo, Giuseppe ; Nasello, Carmelo. / Identifying wave and turbulence components in wind-driven shallow basins. In: Periodica Polytechnica: Civil Engineering. 2012 ; Vol. 56, No. 1. pp. 87-95.
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