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izvor podataka: crosbi

: Sea-level changes and crustal movements recorded along the east Adriatic coast (CROSBI ID 88127)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Orlić, Mirko ; Pasarić, Miroslava : Sea-level changes and crustal movements recorded along the east Adriatic coast // Nuovo cimento della Società italiana di fisica. C, 23 (2000), 4; 351-364-x

Podaci o odgovornosti

Orlić, Mirko ; Pasarić, Miroslava

engleski

: Sea-level changes and crustal movements recorded along the east Adriatic coast

Sea-level changes in the Adriatic are investigated on the basis of monthly mean sea levels registered at Croatian tide-gauge stations Rovinj, Bakar, Split and Dubrovnik since the beginning of the 1950s. A comparison of sea-level anomalies with air-pressure anomalies recorded simultaneously at Pula, Rijeka, Split and Dubrovnik reveals a statistically significant relationship: a 1 mbar air-pressure change corresponds to a 1.8-2.0 cm sea-level change. The relationship enables sea-level anomalies to be corrected and, consequently, long term sea-level changes to be determined more reliably. A 20-year cycle observed in both the uncorrected and corrected anomalies is interpreted in terms of the global bidecadal signal and its regional manifestation in the Mediterranean. In order to minimize the effects of the bidecadal cycle, trends are analysed over a 30-year sliding window. The procedure reveals that the trends vary along the Croatian coast from ca. 1 mm/a in the North to zero in the South, with deceleration being visible at all the stations during the early 1970s. The finding is interpreted in terms of a) global sea-level rise, b) regional multidecadal sea-level variability, and c) local tectonic movements. Multidecadal sea-level changes are believed to be related to the natural variations observed in the atmosphere above Europe and/or to the anthropogenic changes of the Mediterranean freshwater budget. Tectonic movements bring about a rising of the middle and south Adriatic coast relatively to the north Adriatic coast at a 1 mm/a speed, with the Bakar area being characterized by anomalous crustal motions.

Upper ocean temperature; Surface-temperature; Variability; Atlantic; Oscillation; Frequencies; Anomalies; Modes; Cycle

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Podaci o izdanju

23 (4)

2000.

351-364-x

objavljeno

0390-5551

Povezanost rada

Geologija