Space-time analysis of informational properties of GPS time series recorded at the Campi Flegrei caldera (Italy)

Tripaldi, Simona; Lovallo, Michele; Filippucci, Marilena; Telesca, Luciano

doi:10.1016/j.jvolgeores.2022.107734

Cited by 3 publications

(2 citation statements)

References 52 publications

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“…Although there is no evidence of spatial variation in the primary deformation source inferred from GPS data analysis (De Martino et al., 2021), changes in the deformation rate since 2012 have been recently observed (see, e.g., Tripaldi et al., 2022). This change of the Phlegrean deformation field is also confirmed by the InSAR measurements carried out in the area, compared with the measurements provided by precise leveling lines and cGNSS stations belonging to the Neapolitan Volcanoes (Polcari et al., 2022).…”

Section: Discussionmentioning

confidence: 99%

New Insights on Ground Deformation at Campi Flegrei Caldera Inferred From Kinematics and Dynamics Investigation of Borehole Tilt

Falanga

Aquino

Lauro

et al. 2023

Earth and Space Science

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The study of the ground deformation in active calderas provides valuable indications of the ongoing dynamical processes. In this framework, we analyze the borehole tiltmeter data recorded at Campi Flegrei (Southern Italy) from their first installation (1 April 2015), in order to retrieve the kinematics of the ground deformation and its main anomalies. Our approach involves the nonlinear dynamics analysis aimed at the identification of the degrees of freedom of the system and thus its complexity. Starting from the second part of the year 2020, the behavior of the dynamical system becomes collective, and a locally significant deviation of the deformative pattern from the background trend is observed. In particular, a series of 15 slow tilt variations (like jumps lasting a few days) appears in the ground deformation. They are associated with a very low‐dimensional system likely generated by a local second‐order source. The latter is related to fluid migration and it is superimposed on the primary one located in Pozzuoli town and driving the current uplift of Campi Flegrei. The effects of such a local, second‐order stress field are, indeed, evident in the area of the volcanic dome of Mt. Olibano, where they are measured as tilt steps. The superposition of primary and second‐order sources of deformation acting contemporaneously can justify the recent variations in geophysical and geochemical parameters. Our approach based on the joint dynamical and kinematical analyses of the tiltmeter data can be applied to other volcanic/tectonic areas or extended to other geophysical and geochemical variables.

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Section: Discussionmentioning

confidence: 99%

New Insights on Ground Deformation at Campi Flegrei Caldera Inferred From Kinematics and Dynamics Investigation of Borehole Tilt

Falanga

Aquino

Lauro

et al. 2023

Earth and Space Science

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show abstract

“…A time code online calibration system based on real-time satellite common-view technology was constructed [10]. Currently on the market, satellite timing devices generally use a temperature-compensated crystal oscillator as the local clock and use the second pulse as the reference to tame the clock, this method has a lower frequency stability and accuracy, which limits the improvement of the frequency calibration and time-frequency synchronization accuracy [11]. In this paper, a miniature rubidium atomic clock with high frequency stability and accuracy is proposed as the local clock of the satellite timing device.…”

Section: Introductionmentioning

confidence: 99%

Research on time-frequency synchronization algorithm and timing device of BDS satellite common-view

Li,

Yu,

Zhu

et al. 2024

Third International Conference on High Performance Computing and Communication Engineering (HPCCE 2023)

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Revealing traits of phytopathogenic status induced by Xylella Fastidiosa in olive trees by analysing multifractal and informational patterns of MODIS satellite evapotranspiration data

Telesca,

Abate,

Faridani

et al. 2023

Physica A: Statistical Mechanics and its Applications

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Space-time analysis of informational properties of GPS time series recorded at the Campi Flegrei caldera (Italy)

Cited by 3 publications

References 52 publications

New Insights on Ground Deformation at Campi Flegrei Caldera Inferred From Kinematics and Dynamics Investigation of Borehole Tilt

New Insights on Ground Deformation at Campi Flegrei Caldera Inferred From Kinematics and Dynamics Investigation of Borehole Tilt

Research on time-frequency synchronization algorithm and timing device of BDS satellite common-view

Revealing traits of phytopathogenic status induced by Xylella Fastidiosa in olive trees by analysing multifractal and informational patterns of MODIS satellite evapotranspiration data

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