Sentence examples for estimated station from inspiring English sources
We estimated station corrections after applying the correction for abnormal seismic intensity distribution and adjusting M as previously described.
The high precision of estimated station coordinates and Earth rotation parameters (ERP) obtained from satellite geodetic techniques is based on the precise determination of the satellite orbit.
In this paper, we discussed the improvement in the expectation of seismic intensity by replacing ARV by an empirically estimated station correction.
Figure 6 shows the estimated station coordinate offsets for the YEBES40M station in Spain, as well as the motions due to solid Earth tides as predicted by the model in the IERS 2010 Conventions (Petit and Luzum 2010).
In the previous section, we demonstrated that simply the replacement of ARV by empirically estimated station corrections leads to an improvement in the accuracy of expected seismic intensities for the current JMA EEW, even when other empirical relations (Eqs. (1), (2), (3), (4), and (6)) are unchanged.
To identify a more accurate solution for site effects than that provided by the site amplification factor ARV based on topographic data in the JMA EEW algorithm, we estimated station corrections by comparing the attenuation relation with observed seismic intensities from recent earthquakes.
Fig. 5 Epicenters of earthquakes used in estimating station corrections for all dataset.
Fig. 6 Distribution of the data with respect to fault distance and Mw when estimating station corrections for all datasets.
The station corrections were extracted on the conditions that the station has at least three earthquake records when estimating station corrections using Eq. (7).
Kiyomoto et al. (2010) used the attenuation relation of JMA EEW's logic to estimate station corrections; but only at 5% of all stations.
However, when estimating station corrections, we had to limit observed seismic intensities to those ≥2.5, mainly to reduce the distance dependence of PGVobs/PGV700exp.
