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Asia/Pacific metrology programme gauge block comparison - 1993/94

Author: Brown, N ; Ecom, TB ; Howick, E ; Kruger, O ; Lan, Y ; Ling-Tang, SL ; Matsumoto, H ; Pusaka, J ; Singhal, RP ; Xu, Y Date: 1996 A comparison of gauge blocks has been carried out in the Asia/Pacific Region as part of an international comparison decided on by the Comite Consultatif pour la Definition du Metre. Ten national standards laboratories measured a set of five ... Read more
Detection of sinkhole precursors through SAR interferometry: radar and geological considerations

Author: Theron, Andre ; Engelbrecht, Jeanine ; Kemp, J ; Kleynhans, Waldo ; Turnbull, T Date: Jun 2017 Sinkholes are an unpredictable geohazard that endanger life and property in dolomitic terrains. Sinkholes are a significant threat in Gauteng, South Africa’s most populated and urbanized province. Small-scale surface subsidence is frequently ... Read more
Monitoring surface deformation associated with groundwater abstraction in the Western Cape using SAR Interferometry

Author: Theron, Andre ; Engelbrecht, Jeanine Date: Oct 2018 Aquifers are able to contain significant amounts of water, which is typically stored in the pore spaces between sand particles or in the fissures and matrix of rocks. This groundwater is an increasingly important source of water in many parts ... Read more
PolinSAR coherence optimisation for deformation measurement in an agricultural region

Author: Engelbrecht, Jeanine ; Inggs, M Date: Oct 2015 Surface deformation due to underground mining poses risks to health and safety as well as infrastructure and the environment. Consequently, the need for long-term operational monitoring systems exists. Differential interferometry (dInSAR) ... Read more
Subsidence feature discrimination using deep convolutional neral networks in synthetic aperture radar imagery

Author: Schwegmann, Colin P ; Kleynhans, Waldo ; Engelbrecht, Jeanine ; Mdakane, Lizwe W ; Meyer, Rory GV Date: Jul 2017 Effective detection and discrimination of surface deformation features in Synthetic Aperture Radar imagery is one of the most important applications of the data. Areas that undergo surface deformation can pose health and safety risks which ... Read more

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Browsing by Subject "Interferometry"

Browsing by Subject "Interferometry"

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