Instytut Budownictwa Wodnego
Polskiej Akademii Nauk

Essay #3843 details

ATTRIBUTEVALUE
typeA
database id3843
titleCo-variability of bars in a multi-bar near-shore zone determined with Canonical Correlation Analysis (CCA)
authorsRóżyński G.1
affiliations
pages91 — 106
full text linkhttp://www.ibwpan.gda.pl/storage/app/media/ahem/ahem48no2str091.pdf
abstractsNearshore bed variations of the southem Baltic shore were investigated with the aim of detecting co-variability among bed forms of a multi-bar system. The studied area is located at IBW PAN Coastal Research Station at Lubiatowo. The beach consists of fine sand of median grain equal to 0.22 mm, is mildly sloping and boasts multiple (usually 4) bars, which is typical for the coast in the southem Baltic. Data on bed topography were collected along 27 lines, equally spanned every 100 m, since 1987 to 1999, usually twice a year. Fairly high alongshore bed homogeneity made it possible to choose one representative profile for which the CCA method was employed. The method demonstrated considerable potential for detecting co-variability of bed features in the nearshore zone. The results show that some 80% of variability in the region of the offshore slope of the outermost bar can be attributed to variations of Dean equilibrium profiles. The portion of variability of the two innermost bars due to variations of equilibrium profiles equals 40%. Horizontal counter-movements of outer and inner bars can be responsible for same 20%. The remaining 40% should be related to highly variable short time scale phenomena like breakers and wave driven currents in the vicinity of inner bars.
attributes [reviewed] [scientific]
languageen
points6
PART OF
typeC
database id3841
year2001
seriesArchives of Hydro-Engineering and Environmental Mechanics
issueVol. 48, No. 2
publisherWydawnictwo IBW PAN
placeGdańsk

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