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NORSAR Location Calibrations and Time Delay Corrections.

机译:NORsaR位置校准和延时校正。

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Deviations from theoretical expected values are observed both for slowness and travel time for P-signals crossing the array. These observed anomalies are presented. At NORSAR these are corrected for both when performing beamforming and when locating events. The method used is explained and the effect of these corrections both on signal detectability and event location is shown to be quite profound. Some simple crust models,plane dipping Moho and a Moho which is a curved interface,are tested and found to be able to explain as a maximum 25% of the observed squared deviations. (Author)

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