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Artikel ; Online: Surface Velocities and Strain-Rates in the Euro-Mediterranean Region From Massive GPS Data Processing

Enrico Serpelloni / Adriano Cavaliere / Leonardo Martelli / Francesco Pintori / Letizia Anderlini / Alessandra Borghi / Daniele Randazzo / Sergio Bruni / Roberto Devoti / Paolo Perfetti / Stefano Cacciaguerra

Frontiers in Earth Science, Vol

2022  Band 10

Abstract: In this work we present and discuss new geodetic velocity and strain-rate fields for the Euro-Mediterranean region obtained from the analysis of continuous GNSS stations. We describe the procedures and methods adopted to analyze raw GPS observations from ...

Abstract In this work we present and discuss new geodetic velocity and strain-rate fields for the Euro-Mediterranean region obtained from the analysis of continuous GNSS stations. We describe the procedures and methods adopted to analyze raw GPS observations from >4000 stations operating in the Euro-Mediterranean, Eurasian and African regions. The goal of this massive analysis is the monitoring of Earth’s crust deformation in response to tectonic processes, including plate- and micro-plate kinematics, geodynamics, active tectonics, earthquake-cycle, but also the study of a wide range of geophysical processes, natural and anthropogenic subsidence, sea-level changes, and hydrology. We describe the computational infrastructure, the methods and procedures adopted to obtain a three-dimensional GPS velocity field, which is used to obtain spatial velocity gradients and horizontal strain-rates. We then focus on the Euro-Mediterranean region, where we discuss the horizontal and vertical velocities, and spatial velocity gradients, obtained from stations that have time-series lengths longer than 6 and 7 years, which are found to be the minimum spans to provide stable and reliable velocity estimates in the horizontal and vertical components, respectively. We compute the horizontal strain-rate field and discuss deformation patterns and kinematics along the major seismogenic belts of the Nubia-Eurasia plate boundary zone in the Mediterranean region. The distribution and density of continuous GNSS stations in our geodetic solution allow us to estimate the strain-rate field at a spatial scale of ∼27 km over a large part of southern Europe, with the exclusion of the Dinaric mountains and Balkans.
Schlagwörter GNSS data processing ; time series analysis ; horizontal strain rates ; vertical ground velocities ; Euro-Mediterranean region ; Science ; Q
Thema/Rubrik (Code) 551
Sprache Englisch
Erscheinungsdatum 2022-06-01T00:00:00Z
Verlag Frontiers Media S.A.
Dokumenttyp Artikel ; Online
Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

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