A Calibration-Free Astrometric Clinometer for Static Monitoring

Chersich, M.; Bolognini, Davide; Curone, Davide; Dacarro, Filippo; Devoti, R.

doi:10.1007/978-3-031-17439-1_4

Cited by 2 publications

(1 citation statement)

References 14 publications

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“…Whereas the dual-frequency station tracks both L1 and L2 carrier signals, the singlefrequency devices are able to track only the L1 carrier from the GPS satellites. However, their capacity for measuring relative positions reaches centimeter-level repeatability for hourly sessions, and millimeter-level repeatability for daily sessions [27] in the post-processing mode if their data are calculated with respect to a reference station placed at a distance not exceeding 10 km [28]. It is worth noting that all of the movements measured at each station refer to the first measured position (time differencing) and that the differential approach over short baselines allows attenuating or eliminating common-mode errors (such as atmospheric biases, antenna phase center offsets and variations, etc.).…”

Section: Methodsmentioning

confidence: 99%

Cost-Effective, Single-Frequency GPS Network as a Tool for Landslide Monitoring

Zuliani

Tunini

Traglia

et al. 2022

Sensors

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The constant monitoring of active landslides, particularly those located in the proximity of populated areas or touristic places, is crucial for early warning and risk-management purposes. The commonly used techniques deploy expensive instrumentation that can be hardly afforded, especially by small mountain communities in which landslide events often occur repeatedly. In recent years, the scientific community, as well as the private sector, have devoted growing effort to reducing the costs of monitoring systems. In this work, we present a monitoring network based on single-frequency Global Positioning System (GPS) sensors that have been activated to monitor an active landslide in the Carnic Alps, North-Eastern Italy. The system, which was composed of 12 single-frequency GPS stations, one seismometric station coupled with a single-frequency GPS instrument for real-time monitoring, and one permanent dual-frequency GPS station located in a stable area, provided daily reports of the landslide motion to the local authorities and administration. We show that this system is a valuable, flexible, and cost-effective tool for quick landslide characterization, and has high potential to be used as a landslide early warning system in case of emergency situations.

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Section: Methodsmentioning

confidence: 99%