Matches in SemOpenAlex for { <https://semopenalex.org/work/W2617162912> ?p ?o ?g. }
Showing items 1 to 79 of
79
with 100 items per page.
- W2617162912 abstract "Unexploded ordnances (UXO) in training ranges cause a significant risk to theenvironment and human activity after the abandonment of training fields. It was recentlyproposed (VanDeMark et al., 2012; VanDeMark et al., 2013) to detect and locate theoccurrence of OXUs during firing exercise through microseismic monitoring, to allowtheir rapid removal. In this contribution, the location problem is addressed. The proposedmethod is based on the inversion of surface wave arrival times recorded by seismicsensors buried around the range. The method consists in minimizing, by the least-squaresmethod, the difference between observed and predicted arrival times of the surface wavegenerated from UXO impacts. Due to the non-linearity of the problem, the velocitymodel and the initial hypocenters are iteratively updated until the residuals betweenpredicted and observed arrival times fall within a prescribed limit. The location algorithmis based on the approach of Block (1994) and Giroux (2001) but with surface wavestraveltimes computed on triangular meshes instead P and S waves on rectangular grids.The algorithm was tested with synthetic data which consist of the arrival times ofsurfaces waves generated by the ray tracing code under heterogeneous velocity. Eachsource of arrival time has thus a known coordinate hypocentre and origin time. Thevelocity model was estimated by 20 calibrations shots whose origin time and locations atthe free surface are known. Tests were conducted but applying varying quantities of noiseon the synthetic arrival times in each seismic sensor. The results obtained show that theprevious approach is feasible; it is possible to locate the UXO's hypocenters with goodaccuracy (error of the hypocenter location reached 1-2 meter) under low noise condition(3%). However, under strong noise (15%) the accuracy of localisation decreasessignificantly (error of the hypocenter location reached 40 m). This notwithstanding, errorof location depends on the ray-station coverage within the grid and the initial velocitymodel depend upon the number of calibration shot." @default.
- W2617162912 created "2017-06-05" @default.
- W2617162912 creator A5046999996 @default.
- W2617162912 creator A5082069042 @default.
- W2617162912 creator A5088413880 @default.
- W2617162912 date "2015-03-22" @default.
- W2617162912 modified "2023-09-27" @default.
- W2617162912 title "Joint hypocenter-velocity inversion of surface wave arrival times tolocate hypocenter of unexploded ordnance munition (UXO)" @default.
- W2617162912 hasPublicationYear "2015" @default.
- W2617162912 type Work @default.
- W2617162912 sameAs 2617162912 @default.
- W2617162912 citedByCount "0" @default.
- W2617162912 crossrefType "journal-article" @default.
- W2617162912 hasAuthorship W2617162912A5046999996 @default.
- W2617162912 hasAuthorship W2617162912A5082069042 @default.
- W2617162912 hasAuthorship W2617162912A5088413880 @default.
- W2617162912 hasConcept C111357193 @default.
- W2617162912 hasConcept C127313418 @default.
- W2617162912 hasConcept C127413603 @default.
- W2617162912 hasConcept C13280743 @default.
- W2617162912 hasConcept C165205528 @default.
- W2617162912 hasConcept C1893757 @default.
- W2617162912 hasConcept C22212356 @default.
- W2617162912 hasConcept C2775977338 @default.
- W2617162912 hasConcept C3017552255 @default.
- W2617162912 hasConcept C41008148 @default.
- W2617162912 hasConcept C54187759 @default.
- W2617162912 hasConcept C62649853 @default.
- W2617162912 hasConcept C7266685 @default.
- W2617162912 hasConcept C76155785 @default.
- W2617162912 hasConcept C77928131 @default.
- W2617162912 hasConcept C78542244 @default.
- W2617162912 hasConcept C83176761 @default.
- W2617162912 hasConcept C84174578 @default.
- W2617162912 hasConceptScore W2617162912C111357193 @default.
- W2617162912 hasConceptScore W2617162912C127313418 @default.
- W2617162912 hasConceptScore W2617162912C127413603 @default.
- W2617162912 hasConceptScore W2617162912C13280743 @default.
- W2617162912 hasConceptScore W2617162912C165205528 @default.
- W2617162912 hasConceptScore W2617162912C1893757 @default.
- W2617162912 hasConceptScore W2617162912C22212356 @default.
- W2617162912 hasConceptScore W2617162912C2775977338 @default.
- W2617162912 hasConceptScore W2617162912C3017552255 @default.
- W2617162912 hasConceptScore W2617162912C41008148 @default.
- W2617162912 hasConceptScore W2617162912C54187759 @default.
- W2617162912 hasConceptScore W2617162912C62649853 @default.
- W2617162912 hasConceptScore W2617162912C7266685 @default.
- W2617162912 hasConceptScore W2617162912C76155785 @default.
- W2617162912 hasConceptScore W2617162912C77928131 @default.
- W2617162912 hasConceptScore W2617162912C78542244 @default.
- W2617162912 hasConceptScore W2617162912C83176761 @default.
- W2617162912 hasConceptScore W2617162912C84174578 @default.
- W2617162912 hasLocation W26171629121 @default.
- W2617162912 hasOpenAccess W2617162912 @default.
- W2617162912 hasPrimaryLocation W26171629121 @default.
- W2617162912 hasRelatedWork W1591107305 @default.
- W2617162912 hasRelatedWork W1788230743 @default.
- W2617162912 hasRelatedWork W1841892066 @default.
- W2617162912 hasRelatedWork W1883831855 @default.
- W2617162912 hasRelatedWork W1974521758 @default.
- W2617162912 hasRelatedWork W2016084590 @default.
- W2617162912 hasRelatedWork W2025626905 @default.
- W2617162912 hasRelatedWork W2094277696 @default.
- W2617162912 hasRelatedWork W2100659704 @default.
- W2617162912 hasRelatedWork W2119314129 @default.
- W2617162912 hasRelatedWork W2120016751 @default.
- W2617162912 hasRelatedWork W2125178622 @default.
- W2617162912 hasRelatedWork W2387913061 @default.
- W2617162912 hasRelatedWork W2553781797 @default.
- W2617162912 hasRelatedWork W2580557777 @default.
- W2617162912 hasRelatedWork W2914005799 @default.
- W2617162912 hasRelatedWork W344871787 @default.
- W2617162912 hasRelatedWork W79548787 @default.
- W2617162912 hasRelatedWork W2490196321 @default.
- W2617162912 hasRelatedWork W300050406 @default.
- W2617162912 isParatext "false" @default.
- W2617162912 isRetracted "false" @default.
- W2617162912 magId "2617162912" @default.
- W2617162912 workType "article" @default.