Spectral analysis of seabed elevation from the Danish Wadden Sea

Bedforms both reflect and influence shallow water hydrodynamics and sediment dynamics. A correct characterization of their spatial distribution and dimensions is required for the understanding, assessment and prediction of numerous coastal processes. A method to parameterize geometrical characteristics using two-dimensional (2D) spectral analysis is presented and tested on seabed elevation data from the Knudedyb tidal inlet in the Danish Wadden Sea, where large compound bedforms are found. The bathymetric data were divided into 20x20 m areas on which a 2D spectral analysis was applied. The most energetic peak of the 2D spectrum was found and its energy, frequency and direction were calculated. A power-law was fitted to the average of slices taken through the 2D spectrum; its slope and y-intercept were calculated. Using these results the test area was morphologically classified into 4 distinct morphological regions. The most energetic peak and the slope and intercept of the power-law showed high values above the crest of the primary bedforms and scour holes, low values in areas without bedforms, and intermediate values in areas with secondary bedforms. The secondary bedform dimensions and orientations were calculated. An area of 700x700 m was used to determine the characteristics of the primary bedforms. However, they were less distinctively characterized compared to the secondary bedforms due to relatively large variations in their orientations and wavelengths. The method is thus appropriate for morphological classification of the seabed and for bedform characterization, being most efficient in areas characterized by bedforms with regular dimensions and directions.

The role of the Church and the folk in the development of the early drama in New Mexico.

Thesis--Univ. of Pennsylvania.

Catalogue of works on anthropology, ethnology, primitive society, etc., etc. : also mythology and folk-lore including a portion of the Library of Sir H. H. Risley.

Mode of access: Internet.

Cumner's son : and other South Sea folk /

Mode of access: Internet.

Complete songs and poems of Robert Tannahill, with life and notes.

Includes index.

The songs of Burns : b with symphonies and accompaniments /

"Centenary edition ..."

Thirty songs /

Piano/vocal score.

The year's entertainments ... a collection of recitations, dialogues, songs, exercises, etc., arranged as programs for special days and occasions, providing for each month of the school year,

Mode of access: Internet.

Masonick melodies : being a choice selection of the most approved masonick songs, duets, glees, catches, cannons, hymns, odes, dirges, and choruses, appropriate to all Masonick occasions: the whole set to musick ... /

Shoemaker

Music, cantelenas, songs, etc., from an early fifteenth century manuscript ...

"Twelve of these songs are in English and four in French."

The effort of the Danish kings to recover the English crown after the death of Harthacnut,

Mode of access: Internet.

Canadian singers and their songs : a collection of portraits and autograph poems /

Mode of access: Internet.

The gift of black folk; the Negroes in the making of America,

Mode of access: Internet.