Item talk:Q312347

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{

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   "name": "A review of the microtremor horizontal-to-vertical spectral ratio (MHVSR) method",
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     "name": "Journal of Seismology",
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   "datePublished": "2022",
   "dateModified": "2022-09-02",
   "abstract": "The single-station microtremor horizontal-to-vertical spectral ratio (MHVSR) method was initially proposed to retrieve the site amplification function and its resonance frequencies produced by unconsolidated sediments overlying high-velocity bedrock. Presently, MHVSR measurements are predominantly conducted to obtain an estimate of the fundamental site frequency at sites where a strong subsurface impedance contrast exists. Of the earthquake site characterization methods presented in this special issue, the MHVSR method is the furthest behind in terms of consensus towards standardized guidelines and commercial use. The greatest challenges to an international standardization of MHVSR acquisition and analysis are (1) the\u00a0what\u00a0\u2014 the underlying composition of the microtremor wavefield is site-dependent, and thus, the appropriate theoretical (forward) model for inversion is still debated; and (2) the\u00a0how\u00a0\u2014 many factors and options are involved in the data acquisition, processing, and interpretation stages. This paper reviews briefly a historical development of the MHVSR technique and the physical basis of an MHVSR (the\u00a0what). We then summarize recommendations for MHVSR acquisition and analysis (the\u00a0how). Specific sections address MHVSR interpretation and uncertainty assessment.",
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