We analyse high rate (20 Hz) altimeter derived sea level information, both from Synthetic Aperture Radar (SAR) altimetry missions and Low Resolution Mode missions, in an inner sea and coastal environment. They are compared versus measured and high resolution model data. After a compact description of the relevant physical processes affecting the local sea level values, we focus on three specific passes on the Adriatic Sea, East of Italy. Our main finding is that altimeters and models provide both valuable, partially overlapping, but complementary, information to be exploited in parallel with a double purpose: to progressively approach the truth and to ensure the parallel improvement of both sources. From altimeter data there is a very strong suggestion that the spatial, and implicitly temporal, variability of the fields is much higher than shown by models. The reasons are discussed.

Synergic use of altimeter and model sea level data in inner and coastal seas / Cavaleri, Luigi; Bertotti, Luciana; Ferrarin, Christian; Passaro, Marcello; Pezzutto, Paolo; Pomaro, Angela. - In: REMOTE SENSING OF ENVIRONMENT. - ISSN 0034-4257. - 261:(2021). [10.1016/j.rse.2021.112500]

Synergic use of altimeter and model sea level data in inner and coastal seas

Passaro Marcello;Pomaro Angela
Ultimo
2021

Abstract

We analyse high rate (20 Hz) altimeter derived sea level information, both from Synthetic Aperture Radar (SAR) altimetry missions and Low Resolution Mode missions, in an inner sea and coastal environment. They are compared versus measured and high resolution model data. After a compact description of the relevant physical processes affecting the local sea level values, we focus on three specific passes on the Adriatic Sea, East of Italy. Our main finding is that altimeters and models provide both valuable, partially overlapping, but complementary, information to be exploited in parallel with a double purpose: to progressively approach the truth and to ensure the parallel improvement of both sources. From altimeter data there is a very strong suggestion that the spatial, and implicitly temporal, variability of the fields is much higher than shown by models. The reasons are discussed.
2021
Coastal water altimetry; Model and altimetry data comparison; Synergy between altimeter and model data; Geophysical variability; Physics of coastal processes
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Synergic use of altimeter and model sea level data in inner and coastal seas / Cavaleri, Luigi; Bertotti, Luciana; Ferrarin, Christian; Passaro, Marcello; Pezzutto, Paolo; Pomaro, Angela. - In: REMOTE SENSING OF ENVIRONMENT. - ISSN 0034-4257. - 261:(2021). [10.1016/j.rse.2021.112500]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1671028
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