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| Titel |
Long-term variability of storm surge frequency in the Venice Lagoon: an update thanks to 18th century sea level observations |
| VerfasserIn |
F. Raicich |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Sciences ; 15, no. 3 ; Nr. 15, no. 3 (2015-03-11), S.527-535 |
| Datensatznummer |
250119369
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| Publikation (Nr.) |
 copernicus.org/nhess-15-527-2015.pdf |
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| Zusammenfassung |
| Sea level observations made in the Venice Lagoon between 1751 and 1792 have
been recovered, consisting of two time series of daily data on high and low
waters in Venice and Chioggia. From comparisons with modern observations, the
quality of the 18th century data appears to be good enough to allow a useful
analysis. A composite time series of daily mean sea level is obtained by
merging the 18th century data and 1872–2004 observations in Venice Punta
della Salute. The absence of reliable information on vertical references
prevents the connection of the two 18th century time series with each other
and with modern observations. However, daily sea level anomalies relative to
the mean sea level enable us to recognize storm surge events that appear to
occur more frequently in the second half of the 18th century than in the late
19th and 20th centuries, particularly during the 1751–1769 period. The
record-breaking storm surge of 4 November 1966 turns out to be a remarkable
event even in comparison to the events extracted from the 18th century time
series. Further work is required to fill the gap between the old and modern
observations. |
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