• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 44
  • 39
  • 3
  • Tagged with
  • 1278
  • 428
  • 117
  • 78
  • 52
  • 49
  • 44
  • 34
  • 34
  • 29
  • 24
  • 23
  • 22
  • 22
  • 21
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
31

Evolution of Cenozoic ocean composition and temperature from foraminiferal trace element proxies

Lear, Caroline Helen January 2000 (has links)
No description available.
32

Wave transformation and velocity fields in the breaker zone

Adeyemo, M. D. January 1969 (has links)
This thesis is concerned with the quantitative study of the geometrical asymmetry and velocity asymmetry associated with shallow water oscillatory waves. The region of interest in the work is the shallow water zone defined by the depth to wave length ratio d 40-15, including the breaker-zone. Three descriptions of wave asymmetry are defined and examined: 1) wave vertical asymmetry, 2) wave slope asymmetry, and 3) wave horizontal asymmetry. Two methods of defining horizontal velocity asymmetry are investigated, namely: 1) horizontal velocity (magnitude) asymmetry, and 2) horizontal velocity (time) asymmetry. The effects of shoaling, produced by beaches of different slope, on the wave asymmetry and the velocity fields are examined. Six beach slopes in the range 1:4 to 1:18 were employed, and a quantitative correlation was found to exist between the wave slope asymmetry, wave horizontal asymmetry and the wave vertical asymmetry, as well as between the wave asymmetry and the velocity asymmetry. General expressions are given on the basis of existing wave theories for the wave horizontal asymmetry and the horizontal velocity (magnitude) asymmetry. A detailed study was made of the effect of the backwash of the wave on the wave asymmetry and the velocity fields seaward of the breakers. The mechanics of sediment movement under the action of waves is discussed in the light of the time-history of the velocity curves. Finally a preliminary investigation of the effect of the phase-difference of uprush and backwash on the wave motion at the breaker position was made. This involved systematic variation of the incident wave characteristics in order to obtain different breaker types.
33

Oxygen and nitrogen cycling in sediments of the southern North sea

Neubacher, Elke January 2009 (has links)
No description available.
34

Automatic detection and analysis of internal waves on SAR images

Simonin, David January 2005 (has links)
No description available.
35

Centennial-resolution palaeoceanography of the Aegean Sea : 15,000 BP - present

Casford, James S. L. January 2001 (has links)
No description available.
36

Multi layer perceptron neural network algorithms for ocean colour applications in coastal waters

D'Alimonte, Davide January 2004 (has links)
No description available.
37

Exceptionally high sea levels in the Solent

Davies, J. R. January 1980 (has links)
No description available.
38

Data assimilation of HF radar data into coastal wave models

Siddons, Lee Anthony January 2007 (has links)
No description available.
39

Global sea surface height changes from satellite altimetry

Sterlini, Paul Edward January 2001 (has links)
No description available.
40

Longshore sediment transport under waves

Dinsley, C. G. January 2002 (has links)
No description available.

Page generated in 0.0575 seconds