GNGTS 2013 - Atti del 32° Convegno Nazionale

Tab. 1 – Location of the stations. Name of Station Latitude Longitude Elevation Dharchula 29.845 80.532 929 Didihat 29.801 80.252 1644 Lohaghat 29.404 80.083 1640 Munsiari 30.066 80.293 2105 Narayan Ashram 29.970 80.655 2535 Pithoragarh 29.584 80.212 1576 Thal 29.841 80.173 1576 Sobla 30.068 80.293 2105 Tejam 29.950 80.120 951 Result and discussion. By using extended coda normalization method of Yoshimoto et al. (1993) as described in previous section. Frequency dependent Q P and Q S are estimated for the Kumaun Himalaya which can be obtained from the slope of the linear fitted lines for different frequencies. The estimated values of Q P and Q S with coefficient of determination are presented in Tab. 2 and Fig. 2. Tab. 2 – Average value of Q P and Q S at different central frequencies. Frequency (Hz) Q P Q S R p 2 (%) R s 2 (%) 1.5 34.09 87.00 95 69 3 61.00 173.92 91 63 6 105.77 379.76 78 57 12 126.07 416.63 66 76 24 205.44 530.39 72 79 Q = Q 0 f n Q p = (24 ± 3) f (0.9 ± 0.3) Q s = (64 ± 3) f (1.04 ± 0.07) Fig. 2 – Q P and Q S fits. 142 GNGTS 2013 S essione 1.1