Monitoring of Surface Displacements in the Kalochori Area (Thessaloniki, Greece) Using a Local GNSS Network

Ganas, A.; Chousianitis, Konstantinos; Argyrakis, Panagiotis; Tsimi, Ch.; Παπανικολάου, Μόρφω; Papathanassiou, George; Exarchos, K.

doi:10.12681/bgsg.11869

Cited by 4 publications

(2 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This change in the deformation trend was attributed to the natural recharge of the aquifers, due to the cessation of groundwater pumping [14]. A Global Navigation Satellite System (GNSS) study covering the period 2013-2015 showed a mixture of subsidence and uplift displacement pattern [33].…”

Section: Kalochori-sindos Regionmentioning

confidence: 99%

InSAR Campaign Reveals Ongoing Displacement Trends at High Impact Sites of Thessaloniki and Chalkidiki, Greece

et al. 2020

View full text Add to dashboard Cite

We studied the broader area of Thessaloniki in northern Greece and Chalkidiki and performed an InSAR campaign to study the surface deformation phenomena that have been known to exist for at least two decades. Sentinel-1 data (2015–2019) together with drill measurements were exploited to focus on specific sites of interest. Our results indicate an ongoing displacement field. At the region of Kalochori and Sindos—where intense subsidence in the 1990s was previously found to have had a natural surface rebound in the 2000s—a new period of subsidence, caused by the enlivenment of the groundwater overexploitation, was reported. The uplifting trend of Oreokastro is still active and subsidence in Anthemountas graben is ongoing; special focus was set on the Makedonia Airport, where significant displacement is occurring. The study also reveals a new area at Nea Moudania, that was not known previously to deform; another case corresponding to anthropogenic-induced surface displacement. Thessaloniki is surrounded by different persistent displacement phenomena, whose main driving mechanisms are anthropogenic. The sensitivity of the surface displacements to the water trends is highlighted in parts of the study area. Results highlight the plan of a water resources management as a high priority for the area.

show abstract

Section: Kalochori-sindos Regionmentioning

confidence: 99%

InSAR Campaign Reveals Ongoing Displacement Trends at High Impact Sites of Thessaloniki and Chalkidiki, Greece

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Since information regarding the extent of the seismic joint at the foundation level is not currently available, the assumption of a statically independent seismic behavior of the two structures should be checked when flexible-base conditions of the instrumented building are to be examined. The outer dimensions of the instrumented structure are 8.90 × 21.8 m, while the height of each floor is 3.0 m. KLH1 station is mounted on the R/C roof slab of the first floor (Figure 2a) and it is collocated with a GNSS base reference station (Ganas et al 2016, Rovithis et al 2014). This monitoring configuration, composed of the KLH1 accelerometric station and the collocated GNSS station, is shown in Figure 2c.…”

Section: The Kalochori Accelerometric Network (Kan)mentioning

confidence: 99%

Field Monitoring of Strong Ground Motion in Urban Areas: The Kalochori Accelerometric Network (KAN), Database and Web-GIS Portal

et al. 2018

View full text Add to dashboard Cite

The Kalochori Accelerometric Network (KAN) has been operating since 2014 in the urban area of Kalochori, 7 km west of Thessaloniki in Northern Greece. KAN is composed of seven accelerometric stations: three ground stations installed in distinct urban zones (i.e., residential, industrial, and tanks zone); three stations on top of a selected structure within each urban zone; and one free-field station away from the built environment. The stations are documented with installation and operating features, available characteristics of the housing structures, and geotechnical data. A set of 78 earthquakes that have been recorded by KAN between 16 January 2014 and 31 December 2016 are reported, allowing investigation of local site effects on seismic motion, variation of ground surface motion within different urban environments, and evaluation of dynamic response features of the instrumented structures. KAN stations monographs, processed acceleration recordings, and metadata of the recorded earthquakes are available online through a Web-GIS platform. Indicative example applications are discussed for possible data use in the field of soil and structural dynamics. The DOI linked to the complete set of KAN data is 10.6084/m9.figshare.5044804.

show abstract

Distinguishing ionospheric scintillation from multipath in GNSS signals using geodetic receivers

Hancock

Veettil

et al. 2022

GPS Solut

View full text Add to dashboard Cite

Monitoring of Surface Displacements in the Kalochori Area (Thessaloniki, Greece) Using a Local GNSS Network

Abstract: The ground motions in the Kalochori region (well known

Cited by 4 publications

References 9 publications

InSAR Campaign Reveals Ongoing Displacement Trends at High Impact Sites of Thessaloniki and Chalkidiki, Greece

InSAR Campaign Reveals Ongoing Displacement Trends at High Impact Sites of Thessaloniki and Chalkidiki, Greece

Field Monitoring of Strong Ground Motion in Urban Areas: The Kalochori Accelerometric Network (KAN), Database and Web-GIS Portal

Distinguishing ionospheric scintillation from multipath in GNSS signals using geodetic receivers

Contact Info

Product

Resources

About