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Absolute Sea Level Surface Modeling for the Mediterranean from Satellite Altimeter and Tide Gauge Measurements (CROSBI ID 241561)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Grgić, Marijan ; Nerem, Robert Steven ; Bašić, Tomislav Absolute Sea Level Surface Modeling for the Mediterranean from Satellite Altimeter and Tide Gauge Measurements // Marine geodesy, 40 (2017), 4; 239-258. doi: 10.1080/01490419.2017.1342726

Podaci o odgovornosti

Grgić, Marijan ; Nerem, Robert Steven ; Bašić, Tomislav

engleski

Absolute Sea Level Surface Modeling for the Mediterranean from Satellite Altimeter and Tide Gauge Measurements

Changes in the height of the ocean can be described through the relative and absolute sea level changes depending on the geodetic reference the sea level records are related to. Satellite altimetry provides absolute sea level (ASL) measurements related to the global geodetic reference, whereas tide gauges provide relative sea level (RSL) measurements related to the adjacent land. This study aims at computing the ASL surfaces for different time epochs from combined satellite altimeter and tide gauge records. A method of sea level data fusion is proposed to enable modeling of the impact of present and future sea level changes on the coast. Sea surface modeling was investigated for ten different gridding methods commonly used for the interpolation of altimeter data over the open ocean and extrapolation over the coastal zones. The performance of gridding methods was assessed based on the comparison of the gridded altimeter data and corrected tide gauge measurements. Finally, the sea level surfaces related to the GRS80 global reference ellipsoid were computed for the Mediterranean Sea over the altimeter period. In addition, the current sea level trends were estimated from both sea level measurements.

Absolute sea level, extrapolation methods, interpolation methods, offshore reference frame, satellite altimetry validation, sea level modeling, tide gauge data integration, vertical land movement

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Podaci o izdanju

40 (4)

2017.

239-258

objavljeno

0149-0419

10.1080/01490419.2017.1342726

Povezanost rada

Geologija, Geodezija, Računarstvo

Poveznice
Indeksiranost