An Introduction to Surface Wave Analysis Michael E. Pasyanos - IRIS

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<strong>Surface</strong> <strong>Wave</strong> Model - Results
Examples get_dispersion 23.522499 45.503201 Getting dispersion values from surface wave model lat = 23.5224990000000 lon = 45.5032010000000 avg nblk= 1 nfreq = 15 10 RAYLEIGH Freq (mHz) Period (s) Group Vel (km/s) Phase Vel (km/s) 5.0000 200.0000 -99.0000 0.0400 4.5560 0.0300 7.5000 133.3333 3.6787 0.0400 4.1909 0.0300 10.0000 100.0000 3.7663 0.0400 4.0654 0.0300 12.5000 80.0000 3.7896 0.0400 4.0049 0.0300 15.0000 66.6667 3.8010 0.0400 3.9687 0.0300 17.5000 57.1429 3.7885 0.0400 3.9434 0.0300 20.0000 50.0000 3.6876 0.0400 3.9173 0.0300 22.5000 44.4444 3.6096 0.0400 3.8846 0.0300 25.0000 40.0000 3.5748 0.0400 3.8535 0.0300 27.5000 36.3636 3.4627 0.0400 3.8212 0.0300 30.0000 33.3333 3.3749 0.0400 3.7834 0.0300 32.5000 30.7692 3.3130 0.0400 3.7456 0.0300 35.0000 28.5714 3.2361 0.0400 3.7075 0.0300 37.5000 26.6667 3.1533 0.0400 3.6684 0.0300 40.0000 25.0000 3.0424 0.0400 3.6269 0.0300 LOVE Freq (mHz) Period (s) Group Vel (km/s) Phase Vel (km/s) 7.5000 133.3333 -99.0000 0.0600 4.6965 0.0400 10.0000 100.0000 4.2473 0.0600 4.5931 0.0400 12.5000 80.0000 4.0981 0.0600 4.5036 0.0400 15.0000 66.6667 4.0472 0.0600 4.4231 0.0400 17.5000 57.1429 3.9942 0.0600 4.3620 0.0400 20.0000 50.0000 3.9145 0.0600 4.3057 0.0400 22.5000 44.4444 3.8609 0.0600 4.2554 0.0400 25.0000 40.0000 3.7287 0.0600 4.2044 0.0400 27.5000 36.3636 3.6923 0.0600 4.1535 0.0400 30.0000 33.3333 3.7505 0.0600 4.1119 0.0400 get_dispersion 29.17556 47.69333 Getting dispersion values from surface wave model lat = 29.1755600000000 lon = 47.6933300000000 avg nblk= 1 nfreq = 15 10 RAYLEIGH Freq (mHz) Period (s) Group Vel (km/s) Phase Vel (km/s) 5.0000 200.0000 -99.0000 0.0400 4.5539 0.0300 7.5000 133.3333 3.8017 0.0400 4.2537 0.0300 10.0000 100.0000 3.9035 0.0400 4.1443 0.0300 12.5000 80.0000 3.9397 0.0400 4.1014 0.0300 15.0000 66.6667 3.8425 0.0400 4.0644 0.0300 17.5000 57.1429 3.7577 0.0400 4.0246 0.0300 20.0000 50.0000 3.7232 0.0400 3.9861 0.0300 22.5000 44.4444 3.6562 0.0400 3.9517 0.0300 25.0000 40.0000 3.5130 0.0400 3.9121 0.0300 27.5000 36.3636 3.3422 0.0400 3.8624 0.0300 30.0000 33.3333 3.1968 0.0400 3.8045 0.0300 32.5000 30.7692 3.0621 0.0400 3.7428 0.0300 35.0000 28.5714 2.8974 0.0400 3.6751 0.0300 37.5000 26.6667 2.7815 0.0400 3.6040 0.0300 40.0000 25.0000 2.6532 0.0400 3.5327 0.0300 LOVE Freq (mHz) Period (s) Group Vel (km/s) Phase Vel (km/s) 7.5000 133.3333 -99.0000 0.0600 4.7466 0.0400 10.0000 100.0000 4.4932 0.0600 4.6999 0.0400 12.5000 80.0000 4.2743 0.0600 4.6317 0.0400 15.0000 66.6667 4.0344 0.0600 4.5447 0.0400 17.5000 57.1429 3.8634 0.0600 4.4478 0.0400 20.0000 50.0000 3.7098 0.0600 4.3528 0.0400 22.5000 44.4444 3.5095 0.0600 4.2558 0.0400 25.0000 40.0000 3.4041 0.0600 4.1586 0.0400 27.5000 36.3636 3.2392 0.0600 4.0659 0.0400 30.0000 33.3333 3.1273 0.0600 3.9727 0.0400
Page 1 and 2: An Introduction to Surface Wave Ana
Page 3 and 4: Section 1 - Background on Surface W
Page 5 and 6: Group Velocity vs. Phase Velocity S
Page 7 and 8: Rayleigh Waves Designated LR = “L
Page 9 and 10: Rayleigh Waves vs. Love Waves Unrot
Page 11 and 12: Higher Modes Higher mode exist, but
Page 13 and 14: Dispersion Variations: Crustal Thic
Page 15 and 16: Sensitivity kernels Sensitivity ker
Page 17 and 18: Applications Joint inversion of sur
Page 19 and 20: Recent Tectonic History of Middle E
Page 21 and 22: Surface Wave Results for the Middle
Page 23 and 24: Section 2 - Surface Wave Analysis -
Page 25 and 26: Multiple-Filter Analysis PGSWMFA =
Page 27 and 28: Ambient Noise Analysis Has the pote
Page 29 and 30: Consistency between group and phase
Page 31 and 32: Phase Velocity Measurements Two-sta
Page 33 and 34: Seismic Tomography - Importance of
Page 35 and 36: Getting from dispersion maps and di
Page 37 and 38: Inversion vs. grid search The inver
Page 39 and 40: Results can be combined to produce
Page 41 and 42: Tradeoffs among various parameters
Page 43 and 44: One approach employed in Pasyanos a
Page 45 and 46: Summary § § § § § The analysis
Page 47: Surface Wave Model - Coverage Paths
Page 51 and 52: Tools Comparing between dispersion
Page 53 and 54: Introduction Crustal models like CR
Page 55 and 56: Parameterization Lateral Parameteri
Page 57 and 58: Varying the starting model After cr
Page 59 and 60: We assemble the results to construc
Page 61 and 62: High-resolution regional results fo
Page 63 and 64: Depth slices through the model 50 k
Page 65 and 66: High-resolution regional results fo
Page 67 and 68: The resulting model recovers the di

An Introduction to Surface Wave Analysis Michael E. Pasyanos - IRIS

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