Catalog of worldwide tidal bore occurrences and characteristics

Bartsch-Winkler, Susan; Lynch, D. K.

doi:10.3133/cir1022

Cited by 23 publications

(24 citation statements)

References 10 publications

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“…Famous examples of tidal bores include the Hangzhou (or Hangchow) bore on the Qiantang river (China), the Amazon river bore called pororoca (Brazil), 1 the tidal bore on the Seine river 1 One of the first accounts of the pororoca was by the Frenchman Charles-Marie LA CONDAMINE (1701- A tidal bore may affect shipping industries. For example, the mascaret of the Seine river had had a sinister reputation (Fig.…”

Section: Introductionmentioning

confidence: 99%

Physical modelling of the flow field in an undular tidal bore

Miahr

2005

Journal of Hydraulic Research

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A tidal bore may form in a converging channel with a funnel shape when the tidal range exceeds 6-9 m. The advancing surge has a major impact on the estuarine ecosystem. Physical modelling of an undular bore has been conducted based upon a quasi-steady flow analogy. The experimental data highlight rapid flow redistributions between successive wave troughs and crests as well as large bottom shear stress variations. The results suggest a sediment transport process combining scour beneath wave troughs associated with upward matter dispersion between a trough and the following wave crest. The process is repeated at each trough and significant sediment transport takes place with deposition in upstream intertidal zones. The conceptual model is supported by field observations showing murky waters after the bore passage and long-lasting chaotic waves. RÉSUMÉUn mascaret peut se former dans un canal convergent en forme d'entonnoir quand la hauteur de marée excède 6-9 m. La vague qui avance a un impact important sur l'écosystème de l'estuaire. La modélisation physique d'un mascaret ondulé a été réalisée en se basant sur l'analogie avec un écoulement quasi-stationnaire. Les données expérimentales mettent en lumière des redistributions rapides d'écoulement entre les creux et les crêtes successives des vagues ainsi que des variations importantes du cisaillement au fond. Les résultats suggèrent un processus de transport sédimentaire combinant un affouillement de sédiment sous les creux associé à une dispersion ascendante de matière entre un creux et la crête de vague suivante. Le processus est répété à chaque creux et un transport significatif de sédiment a lieu avec dépôt dans les zones intertidales amont. Le modèle conceptuel est étayé par des observations en nature montrant des eaux troubles après le passage d'un mascaret et des vagues chaotiques durables.

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Section: Introductionmentioning

confidence: 99%

Physical modelling of the flow field in an undular tidal bore

Miahr

2005

Journal of Hydraulic Research

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“…To the south, the mouth of Chiang Jiang (Yangtze) River (near 1409) has a tide-dominated estuary. The highest reported tidal bores in the world occur within the Hangzhou Estuary (1421), where bore heights approach 3 m ( Bartsch-Winkler and Lynch, 1988).…”

Section: Yellow Sea (13)mentioning

confidence: 99%

Highest tides of the world

Archer¹,

Hubbard²

2003

Extreme Depositional Environments: Mega End Members in Geologic Time

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“…This is shown by an attempt by Bartsch-Winkler and Lynch to predict the locations of undocumented tidal bores in remote and inaccessible regions [61]. Information on all sixty-seven known tidal bores was gathered by means of an exhaustive literature search and questionnaires sent to appropriate earth scientists and agencies around the world so that the characteristics of the areas in which the phenomenon occurs could be determined.…”

Section: Hidden Correlationsmentioning

confidence: 99%

The Creation of New Knowledge by Information Retrieval and Classification

Davies

1989

Journal of Documentation

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Knowledge can be created by drawing inferences from what is already known. Often some of the requisite information is lacking and has to be gathered by whatever research techniques are appropriate, e.g. experiments, surveys etc. Even if the information has all been published already, unless it is retrieved no inferences will be drawn from it and consequently there will exist some knowledge that is implicit in the literature and yet is not known by anyone. This ‘undiscovered public knowledge’, as it is termed by Swanson, may exist in the following forms: (i) a hidden refutation or qualification of a hypothesis; (ii) an undrawn conclusion from two or more premises; (iii) the cumulative evidence of weak, independent tests; (iv) solutions to analogous problems; (v) hidden correlations between factors. Methods of classification may also play a direct role in the creation of original knowledge. Novel solutions to problems may be discovered by generating different combinations of the basic features of the solutions, as is done in morphological analysis. Alternatively a natural classification may identify gaps in existing knowledge. This paper reviews previous work on producing knowledge by information retrieval or classification and describes techniques by which hidden knowledge may be retrieved, e.g. serendipity in browsing, use of appropriate search strategies and, possibly in the future, methods based on Farradane's relational indexing or artificial intelligence.

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Catalog of worldwide tidal bore occurrences and characteristics

Cited by 23 publications

References 10 publications

Physical modelling of the flow field in an undular tidal bore

Physical modelling of the flow field in an undular tidal bore

Highest tides of the world

The Creation of New Knowledge by Information Retrieval and Classification

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