статья в журнале

En

Russian Journal of Earth Sciences
eSSN:1681-1208

2025

10.2205/2025ES000952

SVMAKR

The verification of statistical models of sea surface elevations based on the decomposition of the wave profile into degrees of a small parameter (wave steepness) and in terms of multidimensional integrals of wave spectra was carried out. For verification, wave measurement data were used to calculate the skewness and excess kurtosis of surface elevations, as well as the distribution of crests and troughs. Two factors are identified that limit the use of estimates of skewness Aη and excess kurtosis Eη obtained from existing models. First, the model estimates Aη and Eη are always non-negative, although the measurement data show that the lower limit of the ranges in which the skewness and excess kurtosis change is in the region of negative values. Secondly, almost all existing models are one-parameter models, using wave steepness and wave age as predictors; whereas the measured data indicate that there is no clear relationship. The values of Aη and Eη vary greatly for fixed values of the predictors...

SEA SURFACE, STATISTICAL MODELS, SKEWNESS, EXCESS KURTOSIS, CREST DISTRIBUTIONS, TROUGH DISTRIBUTIONS

2025-04-21 11:57:50 (квартал- I)