Glacial isostatic adjustment in the northern adriatic region: estimates of the contribution from the Alpine ice sheet
The present-day sea-level variations and vertical movements in the northern Adriatic Sea and in the highly vulnerable Venetian Lagoon result from a number of simultaneously operating contributions. These include Glacial Isostatic Adjustment (GIA), the global, long-term process arising from interacti...
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Online Access: | https://hdl.handle.net/11585/956515 https://doi.org/10.1093/gji/ggad026 https://academic.oup.com/gji/article/233/3/2039/6998561 |
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ftunibolognairis:oai:cris.unibo.it:11585/956515 2024-04-14T08:13:13+00:00 Glacial isostatic adjustment in the northern adriatic region: estimates of the contribution from the Alpine ice sheet Linsalata, Fernando Melini, Daniele Spada, Giorgio Linsalata, Fernando Melini, Daniele Spada, Giorgio 2023 STAMPA https://hdl.handle.net/11585/956515 https://doi.org/10.1093/gji/ggad026 https://academic.oup.com/gji/article/233/3/2039/6998561 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000937511600004 volume:233 issue:3 firstpage:2039 lastpage:2052 numberofpages:14 journal:GEOPHYSICAL JOURNAL INTERNATIONAL https://hdl.handle.net/11585/956515 doi:10.1093/gji/ggad026 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85156117812 https://academic.oup.com/gji/article/233/3/2039/6998561 Loading of the Earth Sea level change Europe Numerical modelling info:eu-repo/semantics/article 2023 ftunibolognairis https://doi.org/10.1093/gji/ggad026 2024-03-21T16:59:58Z The present-day sea-level variations and vertical movements in the northern Adriatic Sea and in the highly vulnerable Venetian Lagoon result from a number of simultaneously operating contributions. These include Glacial Isostatic Adjustment (GIA), the global, long-term process arising from interactions between the cryosphere, the solid Earth and the oceans in response to the melting of continental ice sheets. Although the GIA contribution in northern Adriatic Sea has been the subject of various investigations so far, significant uncertainties still exist, especially related to the extent and chronology of the Wurm Alpine ice sheet and to the rheological profile of the mantle. Here, taking advantage of the recent publication of updated deglaciation chronologies for the far field late-Pleistocene ice sheets and for the near-field alpine ice complex, we produce up-to-date estimates of the present-day rates of GIA-induced relative sea-level variations and vertical displacements in the Venetian Lagoon and in the northern Adriatic Sea, which are compared with GNSS and tide-gauge observations. From high-resolution numerical simulations, we find that GIA is responsible for a complex pattern of geodetic signals across the Po plain and the northern Adriatic Sea. The modeled GIA rates are of the order of fractions of mm yr(-1), generally small - but not negligible - compared to the signals observed at local tide gauges and at GNSS sites in the Po plain and facing the Venetian Lagoon. Our results indicate that, while GIA represents a relatively small component among those responsible for present-day land movements and relative sea-level variations in the northern Adriatic Sea, its contribution needs to be taken into account for a correct interpretation of the observed geodetic variations. Article in Journal/Newspaper Ice Sheet IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) Geophysical Journal International 233 3 2039 2052 |
institution |
Open Polar |
collection |
IRIS Università degli Studi di Bologna (CRIS - Current Research Information System) |
op_collection_id |
ftunibolognairis |
language |
English |
topic |
Loading of the Earth Sea level change Europe Numerical modelling |
spellingShingle |
Loading of the Earth Sea level change Europe Numerical modelling Linsalata, Fernando Melini, Daniele Spada, Giorgio Glacial isostatic adjustment in the northern adriatic region: estimates of the contribution from the Alpine ice sheet |
topic_facet |
Loading of the Earth Sea level change Europe Numerical modelling |
description |
The present-day sea-level variations and vertical movements in the northern Adriatic Sea and in the highly vulnerable Venetian Lagoon result from a number of simultaneously operating contributions. These include Glacial Isostatic Adjustment (GIA), the global, long-term process arising from interactions between the cryosphere, the solid Earth and the oceans in response to the melting of continental ice sheets. Although the GIA contribution in northern Adriatic Sea has been the subject of various investigations so far, significant uncertainties still exist, especially related to the extent and chronology of the Wurm Alpine ice sheet and to the rheological profile of the mantle. Here, taking advantage of the recent publication of updated deglaciation chronologies for the far field late-Pleistocene ice sheets and for the near-field alpine ice complex, we produce up-to-date estimates of the present-day rates of GIA-induced relative sea-level variations and vertical displacements in the Venetian Lagoon and in the northern Adriatic Sea, which are compared with GNSS and tide-gauge observations. From high-resolution numerical simulations, we find that GIA is responsible for a complex pattern of geodetic signals across the Po plain and the northern Adriatic Sea. The modeled GIA rates are of the order of fractions of mm yr(-1), generally small - but not negligible - compared to the signals observed at local tide gauges and at GNSS sites in the Po plain and facing the Venetian Lagoon. Our results indicate that, while GIA represents a relatively small component among those responsible for present-day land movements and relative sea-level variations in the northern Adriatic Sea, its contribution needs to be taken into account for a correct interpretation of the observed geodetic variations. |
author2 |
Linsalata, Fernando Melini, Daniele Spada, Giorgio |
format |
Article in Journal/Newspaper |
author |
Linsalata, Fernando Melini, Daniele Spada, Giorgio |
author_facet |
Linsalata, Fernando Melini, Daniele Spada, Giorgio |
author_sort |
Linsalata, Fernando |
title |
Glacial isostatic adjustment in the northern adriatic region: estimates of the contribution from the Alpine ice sheet |
title_short |
Glacial isostatic adjustment in the northern adriatic region: estimates of the contribution from the Alpine ice sheet |
title_full |
Glacial isostatic adjustment in the northern adriatic region: estimates of the contribution from the Alpine ice sheet |
title_fullStr |
Glacial isostatic adjustment in the northern adriatic region: estimates of the contribution from the Alpine ice sheet |
title_full_unstemmed |
Glacial isostatic adjustment in the northern adriatic region: estimates of the contribution from the Alpine ice sheet |
title_sort |
glacial isostatic adjustment in the northern adriatic region: estimates of the contribution from the alpine ice sheet |
publishDate |
2023 |
url |
https://hdl.handle.net/11585/956515 https://doi.org/10.1093/gji/ggad026 https://academic.oup.com/gji/article/233/3/2039/6998561 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000937511600004 volume:233 issue:3 firstpage:2039 lastpage:2052 numberofpages:14 journal:GEOPHYSICAL JOURNAL INTERNATIONAL https://hdl.handle.net/11585/956515 doi:10.1093/gji/ggad026 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85156117812 https://academic.oup.com/gji/article/233/3/2039/6998561 |
op_doi |
https://doi.org/10.1093/gji/ggad026 |
container_title |
Geophysical Journal International |
container_volume |
233 |
container_issue |
3 |
container_start_page |
2039 |
op_container_end_page |
2052 |
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1796311162032226304 |