Tectonic crustal deformation of Corinth Gulf, Greece, based on primary geodetic data

Lazos, Ilias

doi:10.13168/agg.2020.0030

Cited by 8 publications

(6 citation statements)

References 71 publications

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“…The Gulf of Corinth is among the most tectonically active regions of Greece (e.g. Moretti et al, 2003;Gaki-Papanastassiou et al, 2007;Jolivet et al, 2013;Charalampakis et al, 2014;Lazos et al, 2020). It lies in the central part of Greece and segregates the Peloponnese, to the south, and Central Greece, to the north.…”

Section: Field Trip Focus and Designmentioning

confidence: 99%

Virtual field trips as a tool for indirect geomorphological experience: a case study from the southeastern part of the Gulf of Corinth, Greece

et al. 2021

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Abstract. Field trips are an essential part for geoscience students, as the field is intrinsic for understanding what they are taught in the classroom. Yet, distance learning has never been more necessary than today. Despite their significance in the students' education, field trips cannot be performed under the present conditions with the COVID-19 pandemic. Educators are called to find, use and evolve various tools in order to offer students quality education, with an effort to eliminate the drawbacks of the lack of physical contact and “live” field work. Virtual field trips are one such tool through which one can virtually see any place on the globe by means of a computer, tablet, or even mobile phone, without physically visiting it. In this paper, we present the results of a virtual field trip developed for students following the Geomorphology course of the Faculty of Geology and Geoenvironment, National and Kapodistrian University of Athens; it can, however, be used from other universities with similar courses not only in Greece but also in other countries as well. The purpose of this study is the evaluation of virtual field trips, both as an alternative to and/or substitute for in situ field work and as a means of preparation for live field trips, by taking into consideration the students' views through an anonymous questionnaire. Our findings suggest that virtual field trips are useful for geoscience students, and they provide a good alternative during restriction periods, and although they can under no circumstances substitute real field trips, they can be a valuable additional tool when preparing for a live field trip.

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Section: Field Trip Focus and Designmentioning

confidence: 99%

Virtual field trips as a tool for indirect geomorphological experience: a case study from the southeastern part of the Gulf of Corinth, Greece

et al. 2021

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Section: Study Areamentioning

confidence: 99%

Virtual field trips as a tool for indirect geomorphological experience: A case study from the southeast part of the Gulf of Corinth, Greece

Evelpidou¹,

Karkani²,

Saitis³

et al. 2021

Preprint

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Abstract. Field trips are an essential part for geoscience students, as the field is intrinsic for understanding what they are taught in the classroom. Yet, distance learning has never been more necessary than today. Despite their significance in the students’ education, field trips cannot be performed under the present conditions with the COVID-19 pandemic. Educators are called to find, use and evolve various tools in order to offer students quality education, with an effort to eliminate the drawbacks of the lack of physical contact and “live” field work. Virtual field trips are one such tool, through which one can virtually see any place in the globe by means of a computer, tablet, or even mobile phone, without physically visiting it. In this paper, we present the results of a virtual field trip developed for students following Geomorphology course of the Faculty of Geology and Geo-environment, National and Kapodistrian University of Athens; it can, however, be used from other universities with similar courses, not only in Greece, but in other countries as well. The purpose of this study is the evaluation of virtual field trips, both as an alternative and/or substitute of in situ field work and as a means of preparation for “live” field trips, by taking into consideration the students’ views, through an anonymous questionnaire. Our findings suggest that virtual fieldtrips are useful for geoscience students, and they provide a good alternative during restriction periods, and although they can under no circumstances substitute real field trips, they can be a valuable additional tool when preparing for a live field trip.

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“…GNSS is a powerful technique for geodetic observations with precision of about 1 and 3 mm in horizontal and vertical component, respectively, as reported in [12,13]. Relative precision of GNSS geodetic observations can reach 10 −7 to 10 −8 for baselines of tens to hundreds of kilometers and can reach 10 −9 for the baselines of thousands of kilometers [14].…”

Section: Materials 21 Application Of Gnss Analysis In Crust Monitoringmentioning

confidence: 97%

Estimation of Ground Subsidence Deformation Induced by Underground Coal Mining with GNSS-IR

Tan

et al. 2022

Remote Sensing

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In this paper, GNSS interferometric reflectometry (GNSS-IR) is firstly proposed to estimate ground surface subsidence caused by underground coal mining. Ground subsidence on the main direction of a coal seam is described by using the probability integral model (PIM) with unknown parameters. Based on the laws of reflection in geometric optics, model of GNSS signal-to-noise (SNR) observation for the tilt surface, which results from differential subsidence of ground points, is derived. Semi-cycle SNR observations fitting method is used to determine the phase of the SNR series. Phase variation of the SNR series is used to calculate reflector height of ground specular reflection point. Based on the reflector height and ground tilt angle, an iterative algorithm is proposed to determine coefficients of PIM, and thus subsidence of the ground reflection point. By using the low-cost navigational GNSS receiver and antenna, an experimental campaign was conducted to validate the proposed method. The results show that, when the maximum subsidence is 3076 mm, the maximum relative error of the proposed method-based subsidence estimation is 5.5%. This study also suggests that, based on the proposed method, the navigational GNSS instrument can be treated as a new type of sensor for continuously measuring ground subsidence deformation in a cost-effective way.

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Tectonic crustal deformation of Corinth Gulf, Greece, based on primary geodetic data

Cited by 8 publications

References 71 publications

Virtual field trips as a tool for indirect geomorphological experience: a case study from the southeastern part of the Gulf of Corinth, Greece

Virtual field trips as a tool for indirect geomorphological experience: a case study from the southeastern part of the Gulf of Corinth, Greece

Virtual field trips as a tool for indirect geomorphological experience: A case study from the southeast part of the Gulf of Corinth, Greece

Estimation of Ground Subsidence Deformation Induced by Underground Coal Mining with GNSS-IR

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