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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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one publication added to basket [36293]

Extreme sea level events in the coastal waters of western Estonia Suursaar, Ü.; Kullas, T.; Otsmann, M.; Kõuts, T. (2003). Extreme sea level events in the coastal waters of western Estonia. J. Sea Res. 49(4): 295-303. https://dx.doi.org/10.1016/s1385-1101(03)00022-4 In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101; e-ISSN 1873-1414, meer Ook verschenen in: Ohlson, M.; Omstedt, A.; Turner, D. (Ed.) (2003). Proceedings of the 22nd Conference of the Baltic Oceanographers (CBO), Stockholm, Sweden, 25-29 November 2001. Journal of Sea Research, 49(4). Elsevier: Amsterdam. 227-374 pp., meer

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Beschikbaar in	Auteurs
VLIZ: Non-open access 56704 [ aanvragen ]

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Trefwoorden

ANE, Baltic, Riga Gulf ANE, Estonia, Narva Bay ANE, Estonia, Paernu Bay ANE, Estonia, West-Estonian Archipelago Atmospheric forcing Modelling Physics > Mechanics > Fluid mechanics > Hydrodynamics Surges > Surface water waves > Storm surges Temporal variations > Long-term changes > Sea level changes ANE, Baltic, Gulf of Riga [Marine Regions]; ANE, Estonia, Narva Bay [Marine Regions]; ANE, Estonia, Parnu Bay [Marine Regions]; ANE, Estonia, Vainameri Archipelago [Marine Regions] Marien/Kust

Author keywords

sea level; 2D models; storm surges; oscillations; resonance; Baltic Sea

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Auteurs		Top
Suursaar, Ü. Kullas, T. Otsmann, M. Kõuts, T.

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Abstract

Extraordinarily low and high sea level events are analysed on the basis of historical data and their mechanisms of occurrence are studied with the 1 km grid size 2D hydrodynamic model in the two almost tideless semi-enclosed sub-basins of the Baltic Sea, the Gulf of Riga and the Väinameri. The sea level is modelled with realistic meteorological forcing and comparison data from 1999 and 2001. Resonance properties of the sub-basins are studied and their possible role in the formation of extraordinary sea level events is discussed. While the extremely low levels (-1.23 m below the mean sea level) in the Estonian coastal waters do not generally originate locally, the high levels (up to 2.53 m above the mean as measured in the Pärnu Bay) are short-term and local. They occur in combination with several forcing and morphometrical factors and are localised in the shallow and narrow bays exposed to the direction of the strongest possible storm winds, SW and W. Model simulations show that extremely high and low sea levels in some small bays of western Estonia can exceed the corresponding values in the Pärnu Bay.

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