Debski, Wojciech (2015) TRMLOC Reference manual version 4.2. Technical Report. ..
|
Text
TRCloc_manual-v4.2.pdf - Submitted Version Download (350kB) | Preview |
Abstract
The spatial location of sources of seismic waves is one of the first tasks when transient waves from natural (uncontrolled) sources are analyzed in many branches of physics, including seismology, oceanology, to name a few. Source activity and its spatial variability in time, the geometry of recording network, the complexity and heterogeneity of wave velocity distribution are all factors influencing the performance of location algorithms and accuracy of the achieved results. While estimating of the earthquake foci location is relatively simple a quantitative estimation of the location accuracy is really a challenging task even if the probabilistic inverse method is used because it requires knowledge of statistics of observational, modelling, and a priori uncertainties. Unfortunatelly, this is usually not a case. In such a situation additional assumptions are necessary which additionally complicate the analysis of linversion uncertainties. It is thus of a greate importance to have a reliable and efficient software tools which could allowed an advanced error analysis possible. In this reference manual we describe such a software, called TRMLOC which fulfiels above requirements with respect to local sesimicity like , for example, in mines. The TRMLOC location software (W.Debski and P.Klejment, 2015) performs efficiently the inversion of seismic (acoustic) first arrival time onsets for hypocenter location using the probabilistic inverse theory approach. It provides the maximum likelihood hypocenter location, enables other hypocenter location estimators to be calculated, and, what is most important, it allows an advanced analysis of location (inversion) uncertainties. This advanced performance is possible due to used numerical algorithm implemented in TRMLOC. This reference provides the most comprehensive description of the TRMLOC software including algorithm description and technical description needed for using the software. Correspondingly, the manual consists of two parts. In the first part the basic concepts and numerical algorithms implemented in TRMLOCare described. The second part is a technical reference manual where all details concerning required parameters, data, file formats, etc. are described. For examples of using TRMLOC readers are refered to research papers (W.Debski and P.Klejment, 2015; Debski, 2015). Especially the former one demonstrates how TRMLOC can be used for the advanced error analysis of location tasks.
| Item Type: | Reports (Technical Report) |
|---|---|
| Application references: | Source Location |
| Subjects: | Methodology > Method and procesing > Source parameter estimation |
| Project: | IS-EPOS project |