Variance in the Accuracy of Tidal Levels with Increasing Data Length

Auteurs-es

  • D. R. Metters Flinders University

Mots-clés :

niveau des marées, longueur du jeu de données, effets en eaux peu profondes, époque du système de référence verticale de la marée, inférence

Résumé

Le niveau de la plus haute mer astronomique (PHMA) est dérivé de jeux de données sur le niveau de la mer d'une longueur suffisante pour englober le cycle nodal lunaire. La PHMA a été déterminée pour 14 sites, à partir d’ensembles de données de 35, 90, 180 et 400 jours. La différence entre la PHMA basée sur des jeux de données courts et sur des jeux de données de 20 ans indique que les jeux de données courts ont donné une différence moyenne de 0,22 à 0,24 m. L'augmentation de la longueur à 400 jours a diminué la différence à 0,06 m. Les sites avec une forme diurne ont donné une plus grande différence de 0,4 à 0,9 mètres. L’inférence déduction des composantes de la marée en eau peu profonde à partir du site à long terme le plus proche a réduit la différence à 0,15 à 0,19 m.

Biographie de l'auteur-e

D. R. Metters, Flinders University

Daryl Metters is a Senior Scientist in the Queensland Government Hydraulics Laboratory within the Queensland Government Department of Environment and Science. Daryl has a BSc (Hons) in Marine Science from Flinders University. Daryl has worked in the National Tidal Centre, Australian Bureau of Meteorology as a Tidal analyst, and as Manager Spatial Information (Tidal services) in Maritime Safety Queensland. His work includes monitoring sea levels and tidal levels in Australia and the South Pacific region, data management and operational aspects of tide gauge and wave monitoring networks in Queensland.

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Publié-e

2022-05-30

Comment citer

Metters, D. R. (2022). Variance in the Accuracy of Tidal Levels with Increasing Data Length. The International Hydrographic Review, (27), 23–34. Consulté à l’adresse https://journals.lib.unb.ca/index.php/ihr/article/view/33131

Numéro

No. 27 (2022)

Rubrique

Articles

Licence

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 Anders, F.J. and Byrnes, M.R.(1991). “Accuracy of shoreline change rates as determined from maps and aerial photographs”, Shore and Beach, 59, pp. 17-26.

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Foley, J.D., van Dam, A., Feiner, S. K. and Hughes, J.F. (1990), Computer Graphics – Principles and Practice, 2nd ed., Addison-Wesley, Reading, MA.

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Smith, A. (1988). Colour photomapping. Report NRC-01-512. National Research Centre. Ottawa, Canada.

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desJardins, M. (2005). How to succeed in postgraduate  study, Applied Ecology Research Group, University of Canberra, viewed 26 April 2009, http://aerg.canberra.edu.au/jardins.t.htm.

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