Bollettino di Geofisica Teorica e Applicata
OGS Website BGTA homepage
About the Journal
Contacts
To Authors
On-line Submission
Subscriptions
Forthcoming
On-line First
The Historical First Issue
Issues

2020 Vol. 61
Suppl. 1 / 1 / 2 / 3

2019 Vol. 60
1 / 2 / 3 / 4 / Suppl. 1 / Suppl. 2 / Suppl. 3

2018 Vol. 59
1 / 2 / 3 / 4 / Suppl. 1

2017 Vol. 58
1 / 2 / 3 / 4

2016 Vol. 57
1 / 2 / 3 / 4 / Suppl. 1

2015 Vol. 56
1 / 2 / 3 / 4

2014 Vol. 55
1 / 2 / 3 / 4

2013 Vol. 54
1 / 2 / 3 / 4 / Suppl. 1 / Suppl. 2

2012 Vol. 53
1 / 2 / 3 / 4

2011 Vol. 52
1 / 2 / 3 / 4 / Suppl. 1

2010 Vol. 51
1 / 2-3 / 4 / Suppl. 1

2009 Vol. 50
1 / 2 / 3 / 4

2008 Vol. 49
1 / 2 / 3-4 / Suppl. 1

2007 Vol. 48
1 / 2 / 3 / 4

2006 Vol. 47
1-2 / 3 / 4

2005 Vol. 46
1 / 2-3 / 4

2004 Vol. 45
1-2 / 3 / 4 / Suppl. 1 / Suppl. 2

2003 Vol. 44
1 / 2 / 3-4

2002 Vol. 43
1-2 / 3-4

2001 Vol. 42
1-2 / 3-4

2000 Vol. 41
1 / 2 / 3-4

1999 Vol. 40
1 / 2 / 3-4

1998 Vol. 39
1 / 2 / 3 / 4

1997 Vol. 38
1-2 / 3-4

1995 Vol. 37
145 / 146 / 147 / 148 / Suppl. 1

1994 Vol. 36
141-144 / Suppl. 1

1993 Vol. 35
137-138 / 139 / 140

1992 Vol. 34
133 / 134-135 / 136

1991 Vol. 33
129 / 130-131 / 132

 
 

Vol. 50, n.2, June 2009
pp. 129-144

Post-glacial readjustment, sea-level variations, subsidence and erosion along Italian coasts

P. STOCCHI, L. GIROMETTI, G. SPADA, M. ANZIDEI AND F. COLLEONI

Received: March 31, 2008; accepted: July 4, 2008

Abstract

Ongoing sea-level variations and vertical land movements, measured by tide gauges as well as by continuous GPS stations in Italy, stem from several factors acting on different spatiotemporal scales. Contrary to tectonic and anthropogenic effects, characterized by a heterogeneous signal, the melting of the late-Pleistocene ice sheets results in a smooth long-wavelength pattern of sea-level variation and vertical deformation across the Mediterranean, mostly driven by the melt water load. In this work, we define upper and lower bounds of the effects of glacial isostatic adjustment (GIA) on current sea-level variations and vertical movements along the coasts of Italy. For various mantle viscosity profiles, we explore to what extent the spatial variability of the observed rates may be attributed to a delayed isostatic recovery of both solid Earth and geoid. We find that long-wavelength patterns of sea level change are tuned by GIA, and that the coastal retreat in Italy is broadly correlated with the expected present-day rates of sea-level variations.

Download PDF complete



back to table of contents