Research papers of the week – July 24, 2023

Damian Tondaś; Kamil Kaźmierski; Jan Kapłon

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing

Ministerial score = 140.0
Journal Impact Factor (2023) = 5.5 (Q1)

Ground deformations can be determined via various measurement methods, such as levelling, laser scanning, satellite navigation systems, synthetic aperture radar, and many others. In this article, the authors present cross-validation displacement monitoring results obtained via real-time (RT) and near real-time (NRT) global navigation satellite system calculation scenarios. To verify and validate the quality of RT and NRT long-term displacements, an independent postprocessing (P-P) service was established. The study area was located in the Upper Silesian coal mining region in Poland. The verification procedure for the RT and NRT systems included a demonstration of the achieved accuracy, the time span required to detect a significant displacement, and the determination of the minimum detectable value of deformation. Regarding the P-P data source, the NRT service had root mean square (RMS) errors of approximately 2 and 4 mm for the horizontal components, while the RT errors ranged from 5 to 10 mm. In the vertical direction, the NRT strategy had RMS errors of 5–6 mm, while the RT service achieved the accuracy of 10 mm. The minimum detectable values of deformation for the NRT procedure were 5, 7, and 11 mm in the northern, eastern, and up directions, respectively. For the RT system, the significant values were determined to be 10 and 15 mm for the horizontal and 20 mm for the vertical components.

DOI:10.1109/JSTARS.2023.3290673

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