Coda wave attenuation in the northwestern Iran, using short time Fourier transform
Abstract The present study tries to explore the characteristics of seismic coda wave energy attenuation in northwestern Iranian plateau. For this purpose, coda waves from more than 1600 small crustal events with magnitudes ranging from ML 2 to 5 and epicenteral distances of less than 150 km have bee...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Jafarian Vernosfaderani, Seyyedeh Leila [verfasserIn] Heidari, Reza [verfasserIn] Mirzaei, Noorbakhsh [verfasserIn] Rahimi, Habib [verfasserIn] Meshinchi-Asl, Mirsatar [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2019 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
Enthalten in: Journal of seismology - Dordrecht [u.a.] : Springer Science + Business Media B.V, 1997, 23(2019), 5 vom: 09. Aug., Seite 1085-1095 |
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| Übergeordnetes Werk: |
volume:23 ; year:2019 ; number:5 ; day:09 ; month:08 ; pages:1085-1095 |
| Links: |
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| DOI / URN: |
10.1007/s10950-019-09856-9 |
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| Katalog-ID: |
SPR014927934 |
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| 245 | 1 | 0 | |a Coda wave attenuation in the northwestern Iran, using short time Fourier transform |
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| 520 | |a Abstract The present study tries to explore the characteristics of seismic coda wave energy attenuation in northwestern Iranian plateau. For this purpose, coda waves from more than 1600 small crustal events with magnitudes ranging from ML 2 to 5 and epicenteral distances of less than 150 km have been used. Joint least squares method was used to estimate coda wave quality factor Qc based on the single backscattering model. In the first step, the frequency-dependent Qc values were estimated by a Butterworth band-pass filter, BPF, at central frequencies of 1.5, 3, 6, 12, and 24 Hz in different lapse times of 30 to 90 s. Moreover, in order to study the amplitude decay with time in certain frequency ranges as another approach, short time Fourier transform (STFT) has been used to separate different composed signals of an earthquake waveform in time-frequency domain. The results show the frequency-dependent Qc as (110 to 158)f(0.87 to 0.91) and (73 to 179)f(0.81 to 0.93) for BPF and STFT approaches in different lapse time windows, respectively, where f is between 1.5 and 24 Hz. Obtained quality factor values exhibit relatively consistent and similar results for both BPF and STFT models. Due to lower standard deviations, STFT model shows slightly more accurate values for Qc. However, frequency-dependent measurements showed better coefficient correlation in BPF model. | ||
| 650 | 4 | |a Scattering attenuation |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Intrinsic attenuation |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Short time Fourier transform |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Quality factor |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Coda wave |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Northwestern Iran |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Heidari, Reza |e verfasserin |4 aut | |
| 700 | 1 | |a Mirzaei, Noorbakhsh |e verfasserin |4 aut | |
| 700 | 1 | |a Rahimi, Habib |e verfasserin |4 aut | |
| 700 | 1 | |a Meshinchi-Asl, Mirsatar |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Journal of seismology |d Dordrecht [u.a.] : Springer Science + Business Media B.V, 1997 |g 23(2019), 5 vom: 09. Aug., Seite 1085-1095 |w (DE-627)271177985 |w (DE-600)1479210-2 |x 1573-157X |7 nnns |
| 773 | 1 | 8 | |g volume:23 |g year:2019 |g number:5 |g day:09 |g month:08 |g pages:1085-1095 |
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10.1007/s10950-019-09856-9 doi (DE-627)SPR014927934 (SPR)s10950-019-09856-9-e DE-627 ger DE-627 rakwb eng 550 ASE 38.38 bkl Jafarian Vernosfaderani, Seyyedeh Leila verfasserin aut Coda wave attenuation in the northwestern Iran, using short time Fourier transform 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The present study tries to explore the characteristics of seismic coda wave energy attenuation in northwestern Iranian plateau. For this purpose, coda waves from more than 1600 small crustal events with magnitudes ranging from ML 2 to 5 and epicenteral distances of less than 150 km have been used. Joint least squares method was used to estimate coda wave quality factor Qc based on the single backscattering model. In the first step, the frequency-dependent Qc values were estimated by a Butterworth band-pass filter, BPF, at central frequencies of 1.5, 3, 6, 12, and 24 Hz in different lapse times of 30 to 90 s. Moreover, in order to study the amplitude decay with time in certain frequency ranges as another approach, short time Fourier transform (STFT) has been used to separate different composed signals of an earthquake waveform in time-frequency domain. The results show the frequency-dependent Qc as (110 to 158)f(0.87 to 0.91) and (73 to 179)f(0.81 to 0.93) for BPF and STFT approaches in different lapse time windows, respectively, where f is between 1.5 and 24 Hz. Obtained quality factor values exhibit relatively consistent and similar results for both BPF and STFT models. Due to lower standard deviations, STFT model shows slightly more accurate values for Qc. However, frequency-dependent measurements showed better coefficient correlation in BPF model. Scattering attenuation (dpeaa)DE-He213 Intrinsic attenuation (dpeaa)DE-He213 Short time Fourier transform (dpeaa)DE-He213 Quality factor (dpeaa)DE-He213 Coda wave (dpeaa)DE-He213 Northwestern Iran (dpeaa)DE-He213 Heidari, Reza verfasserin aut Mirzaei, Noorbakhsh verfasserin aut Rahimi, Habib verfasserin aut Meshinchi-Asl, Mirsatar verfasserin aut Enthalten in Journal of seismology Dordrecht [u.a.] : Springer Science + Business Media B.V, 1997 23(2019), 5 vom: 09. Aug., Seite 1085-1095 (DE-627)271177985 (DE-600)1479210-2 1573-157X nnns volume:23 year:2019 number:5 day:09 month:08 pages:1085-1095 https://dx.doi.org/10.1007/s10950-019-09856-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OPC-GGO SSG-OPC-GEO SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 38.38 ASE AR 23 2019 5 09 08 1085-1095 |
| spelling |
10.1007/s10950-019-09856-9 doi (DE-627)SPR014927934 (SPR)s10950-019-09856-9-e DE-627 ger DE-627 rakwb eng 550 ASE 38.38 bkl Jafarian Vernosfaderani, Seyyedeh Leila verfasserin aut Coda wave attenuation in the northwestern Iran, using short time Fourier transform 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The present study tries to explore the characteristics of seismic coda wave energy attenuation in northwestern Iranian plateau. For this purpose, coda waves from more than 1600 small crustal events with magnitudes ranging from ML 2 to 5 and epicenteral distances of less than 150 km have been used. Joint least squares method was used to estimate coda wave quality factor Qc based on the single backscattering model. In the first step, the frequency-dependent Qc values were estimated by a Butterworth band-pass filter, BPF, at central frequencies of 1.5, 3, 6, 12, and 24 Hz in different lapse times of 30 to 90 s. Moreover, in order to study the amplitude decay with time in certain frequency ranges as another approach, short time Fourier transform (STFT) has been used to separate different composed signals of an earthquake waveform in time-frequency domain. The results show the frequency-dependent Qc as (110 to 158)f(0.87 to 0.91) and (73 to 179)f(0.81 to 0.93) for BPF and STFT approaches in different lapse time windows, respectively, where f is between 1.5 and 24 Hz. Obtained quality factor values exhibit relatively consistent and similar results for both BPF and STFT models. Due to lower standard deviations, STFT model shows slightly more accurate values for Qc. However, frequency-dependent measurements showed better coefficient correlation in BPF model. Scattering attenuation (dpeaa)DE-He213 Intrinsic attenuation (dpeaa)DE-He213 Short time Fourier transform (dpeaa)DE-He213 Quality factor (dpeaa)DE-He213 Coda wave (dpeaa)DE-He213 Northwestern Iran (dpeaa)DE-He213 Heidari, Reza verfasserin aut Mirzaei, Noorbakhsh verfasserin aut Rahimi, Habib verfasserin aut Meshinchi-Asl, Mirsatar verfasserin aut Enthalten in Journal of seismology Dordrecht [u.a.] : Springer Science + Business Media B.V, 1997 23(2019), 5 vom: 09. Aug., Seite 1085-1095 (DE-627)271177985 (DE-600)1479210-2 1573-157X nnns volume:23 year:2019 number:5 day:09 month:08 pages:1085-1095 https://dx.doi.org/10.1007/s10950-019-09856-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OPC-GGO SSG-OPC-GEO SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 38.38 ASE AR 23 2019 5 09 08 1085-1095 |
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10.1007/s10950-019-09856-9 doi (DE-627)SPR014927934 (SPR)s10950-019-09856-9-e DE-627 ger DE-627 rakwb eng 550 ASE 38.38 bkl Jafarian Vernosfaderani, Seyyedeh Leila verfasserin aut Coda wave attenuation in the northwestern Iran, using short time Fourier transform 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The present study tries to explore the characteristics of seismic coda wave energy attenuation in northwestern Iranian plateau. For this purpose, coda waves from more than 1600 small crustal events with magnitudes ranging from ML 2 to 5 and epicenteral distances of less than 150 km have been used. Joint least squares method was used to estimate coda wave quality factor Qc based on the single backscattering model. In the first step, the frequency-dependent Qc values were estimated by a Butterworth band-pass filter, BPF, at central frequencies of 1.5, 3, 6, 12, and 24 Hz in different lapse times of 30 to 90 s. Moreover, in order to study the amplitude decay with time in certain frequency ranges as another approach, short time Fourier transform (STFT) has been used to separate different composed signals of an earthquake waveform in time-frequency domain. The results show the frequency-dependent Qc as (110 to 158)f(0.87 to 0.91) and (73 to 179)f(0.81 to 0.93) for BPF and STFT approaches in different lapse time windows, respectively, where f is between 1.5 and 24 Hz. Obtained quality factor values exhibit relatively consistent and similar results for both BPF and STFT models. Due to lower standard deviations, STFT model shows slightly more accurate values for Qc. However, frequency-dependent measurements showed better coefficient correlation in BPF model. Scattering attenuation (dpeaa)DE-He213 Intrinsic attenuation (dpeaa)DE-He213 Short time Fourier transform (dpeaa)DE-He213 Quality factor (dpeaa)DE-He213 Coda wave (dpeaa)DE-He213 Northwestern Iran (dpeaa)DE-He213 Heidari, Reza verfasserin aut Mirzaei, Noorbakhsh verfasserin aut Rahimi, Habib verfasserin aut Meshinchi-Asl, Mirsatar verfasserin aut Enthalten in Journal of seismology Dordrecht [u.a.] : Springer Science + Business Media B.V, 1997 23(2019), 5 vom: 09. Aug., Seite 1085-1095 (DE-627)271177985 (DE-600)1479210-2 1573-157X nnns volume:23 year:2019 number:5 day:09 month:08 pages:1085-1095 https://dx.doi.org/10.1007/s10950-019-09856-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OPC-GGO SSG-OPC-GEO SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 38.38 ASE AR 23 2019 5 09 08 1085-1095 |
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10.1007/s10950-019-09856-9 doi (DE-627)SPR014927934 (SPR)s10950-019-09856-9-e DE-627 ger DE-627 rakwb eng 550 ASE 38.38 bkl Jafarian Vernosfaderani, Seyyedeh Leila verfasserin aut Coda wave attenuation in the northwestern Iran, using short time Fourier transform 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The present study tries to explore the characteristics of seismic coda wave energy attenuation in northwestern Iranian plateau. For this purpose, coda waves from more than 1600 small crustal events with magnitudes ranging from ML 2 to 5 and epicenteral distances of less than 150 km have been used. Joint least squares method was used to estimate coda wave quality factor Qc based on the single backscattering model. In the first step, the frequency-dependent Qc values were estimated by a Butterworth band-pass filter, BPF, at central frequencies of 1.5, 3, 6, 12, and 24 Hz in different lapse times of 30 to 90 s. Moreover, in order to study the amplitude decay with time in certain frequency ranges as another approach, short time Fourier transform (STFT) has been used to separate different composed signals of an earthquake waveform in time-frequency domain. The results show the frequency-dependent Qc as (110 to 158)f(0.87 to 0.91) and (73 to 179)f(0.81 to 0.93) for BPF and STFT approaches in different lapse time windows, respectively, where f is between 1.5 and 24 Hz. Obtained quality factor values exhibit relatively consistent and similar results for both BPF and STFT models. Due to lower standard deviations, STFT model shows slightly more accurate values for Qc. However, frequency-dependent measurements showed better coefficient correlation in BPF model. Scattering attenuation (dpeaa)DE-He213 Intrinsic attenuation (dpeaa)DE-He213 Short time Fourier transform (dpeaa)DE-He213 Quality factor (dpeaa)DE-He213 Coda wave (dpeaa)DE-He213 Northwestern Iran (dpeaa)DE-He213 Heidari, Reza verfasserin aut Mirzaei, Noorbakhsh verfasserin aut Rahimi, Habib verfasserin aut Meshinchi-Asl, Mirsatar verfasserin aut Enthalten in Journal of seismology Dordrecht [u.a.] : Springer Science + Business Media B.V, 1997 23(2019), 5 vom: 09. Aug., Seite 1085-1095 (DE-627)271177985 (DE-600)1479210-2 1573-157X nnns volume:23 year:2019 number:5 day:09 month:08 pages:1085-1095 https://dx.doi.org/10.1007/s10950-019-09856-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OPC-GGO SSG-OPC-GEO SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 38.38 ASE AR 23 2019 5 09 08 1085-1095 |
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10.1007/s10950-019-09856-9 doi (DE-627)SPR014927934 (SPR)s10950-019-09856-9-e DE-627 ger DE-627 rakwb eng 550 ASE 38.38 bkl Jafarian Vernosfaderani, Seyyedeh Leila verfasserin aut Coda wave attenuation in the northwestern Iran, using short time Fourier transform 2019 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The present study tries to explore the characteristics of seismic coda wave energy attenuation in northwestern Iranian plateau. For this purpose, coda waves from more than 1600 small crustal events with magnitudes ranging from ML 2 to 5 and epicenteral distances of less than 150 km have been used. Joint least squares method was used to estimate coda wave quality factor Qc based on the single backscattering model. In the first step, the frequency-dependent Qc values were estimated by a Butterworth band-pass filter, BPF, at central frequencies of 1.5, 3, 6, 12, and 24 Hz in different lapse times of 30 to 90 s. Moreover, in order to study the amplitude decay with time in certain frequency ranges as another approach, short time Fourier transform (STFT) has been used to separate different composed signals of an earthquake waveform in time-frequency domain. The results show the frequency-dependent Qc as (110 to 158)f(0.87 to 0.91) and (73 to 179)f(0.81 to 0.93) for BPF and STFT approaches in different lapse time windows, respectively, where f is between 1.5 and 24 Hz. Obtained quality factor values exhibit relatively consistent and similar results for both BPF and STFT models. Due to lower standard deviations, STFT model shows slightly more accurate values for Qc. However, frequency-dependent measurements showed better coefficient correlation in BPF model. Scattering attenuation (dpeaa)DE-He213 Intrinsic attenuation (dpeaa)DE-He213 Short time Fourier transform (dpeaa)DE-He213 Quality factor (dpeaa)DE-He213 Coda wave (dpeaa)DE-He213 Northwestern Iran (dpeaa)DE-He213 Heidari, Reza verfasserin aut Mirzaei, Noorbakhsh verfasserin aut Rahimi, Habib verfasserin aut Meshinchi-Asl, Mirsatar verfasserin aut Enthalten in Journal of seismology Dordrecht [u.a.] : Springer Science + Business Media B.V, 1997 23(2019), 5 vom: 09. Aug., Seite 1085-1095 (DE-627)271177985 (DE-600)1479210-2 1573-157X nnns volume:23 year:2019 number:5 day:09 month:08 pages:1085-1095 https://dx.doi.org/10.1007/s10950-019-09856-9 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER SSG-OPC-GGO SSG-OPC-GEO SSG-OPC-ASE GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 38.38 ASE AR 23 2019 5 09 08 1085-1095 |
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Scattering attenuation Intrinsic attenuation Short time Fourier transform Quality factor Coda wave Northwestern Iran |
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Jafarian Vernosfaderani, Seyyedeh Leila @@aut@@ Heidari, Reza @@aut@@ Mirzaei, Noorbakhsh @@aut@@ Rahimi, Habib @@aut@@ Meshinchi-Asl, Mirsatar @@aut@@ |
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For this purpose, coda waves from more than 1600 small crustal events with magnitudes ranging from ML 2 to 5 and epicenteral distances of less than 150 km have been used. Joint least squares method was used to estimate coda wave quality factor Qc based on the single backscattering model. In the first step, the frequency-dependent Qc values were estimated by a Butterworth band-pass filter, BPF, at central frequencies of 1.5, 3, 6, 12, and 24 Hz in different lapse times of 30 to 90 s. Moreover, in order to study the amplitude decay with time in certain frequency ranges as another approach, short time Fourier transform (STFT) has been used to separate different composed signals of an earthquake waveform in time-frequency domain. The results show the frequency-dependent Qc as (110 to 158)f(0.87 to 0.91) and (73 to 179)f(0.81 to 0.93) for BPF and STFT approaches in different lapse time windows, respectively, where f is between 1.5 and 24 Hz. Obtained quality factor values exhibit relatively consistent and similar results for both BPF and STFT models. Due to lower standard deviations, STFT model shows slightly more accurate values for Qc. However, frequency-dependent measurements showed better coefficient correlation in BPF model.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Scattering attenuation</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Intrinsic attenuation</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Short time Fourier transform</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Quality factor</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Coda wave</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Northwestern Iran</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Heidari, Reza</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mirzaei, Noorbakhsh</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Rahimi, Habib</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Meshinchi-Asl, Mirsatar</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Journal of seismology</subfield><subfield code="d">Dordrecht [u.a.] : Springer Science + Business Media B.V, 1997</subfield><subfield code="g">23(2019), 5 vom: 09. 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Jafarian Vernosfaderani, Seyyedeh Leila |
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Jafarian Vernosfaderani, Seyyedeh Leila ddc 550 bkl 38.38 misc Scattering attenuation misc Intrinsic attenuation misc Short time Fourier transform misc Quality factor misc Coda wave misc Northwestern Iran Coda wave attenuation in the northwestern Iran, using short time Fourier transform |
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550 ASE 38.38 bkl Coda wave attenuation in the northwestern Iran, using short time Fourier transform Scattering attenuation (dpeaa)DE-He213 Intrinsic attenuation (dpeaa)DE-He213 Short time Fourier transform (dpeaa)DE-He213 Quality factor (dpeaa)DE-He213 Coda wave (dpeaa)DE-He213 Northwestern Iran (dpeaa)DE-He213 |
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ddc 550 bkl 38.38 misc Scattering attenuation misc Intrinsic attenuation misc Short time Fourier transform misc Quality factor misc Coda wave misc Northwestern Iran |
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ddc 550 bkl 38.38 misc Scattering attenuation misc Intrinsic attenuation misc Short time Fourier transform misc Quality factor misc Coda wave misc Northwestern Iran |
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Coda wave attenuation in the northwestern Iran, using short time Fourier transform |
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coda wave attenuation in the northwestern iran, using short time fourier transform |
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Coda wave attenuation in the northwestern Iran, using short time Fourier transform |
| abstract |
Abstract The present study tries to explore the characteristics of seismic coda wave energy attenuation in northwestern Iranian plateau. For this purpose, coda waves from more than 1600 small crustal events with magnitudes ranging from ML 2 to 5 and epicenteral distances of less than 150 km have been used. Joint least squares method was used to estimate coda wave quality factor Qc based on the single backscattering model. In the first step, the frequency-dependent Qc values were estimated by a Butterworth band-pass filter, BPF, at central frequencies of 1.5, 3, 6, 12, and 24 Hz in different lapse times of 30 to 90 s. Moreover, in order to study the amplitude decay with time in certain frequency ranges as another approach, short time Fourier transform (STFT) has been used to separate different composed signals of an earthquake waveform in time-frequency domain. The results show the frequency-dependent Qc as (110 to 158)f(0.87 to 0.91) and (73 to 179)f(0.81 to 0.93) for BPF and STFT approaches in different lapse time windows, respectively, where f is between 1.5 and 24 Hz. Obtained quality factor values exhibit relatively consistent and similar results for both BPF and STFT models. Due to lower standard deviations, STFT model shows slightly more accurate values for Qc. However, frequency-dependent measurements showed better coefficient correlation in BPF model. |
| abstractGer |
Abstract The present study tries to explore the characteristics of seismic coda wave energy attenuation in northwestern Iranian plateau. For this purpose, coda waves from more than 1600 small crustal events with magnitudes ranging from ML 2 to 5 and epicenteral distances of less than 150 km have been used. Joint least squares method was used to estimate coda wave quality factor Qc based on the single backscattering model. In the first step, the frequency-dependent Qc values were estimated by a Butterworth band-pass filter, BPF, at central frequencies of 1.5, 3, 6, 12, and 24 Hz in different lapse times of 30 to 90 s. Moreover, in order to study the amplitude decay with time in certain frequency ranges as another approach, short time Fourier transform (STFT) has been used to separate different composed signals of an earthquake waveform in time-frequency domain. The results show the frequency-dependent Qc as (110 to 158)f(0.87 to 0.91) and (73 to 179)f(0.81 to 0.93) for BPF and STFT approaches in different lapse time windows, respectively, where f is between 1.5 and 24 Hz. Obtained quality factor values exhibit relatively consistent and similar results for both BPF and STFT models. Due to lower standard deviations, STFT model shows slightly more accurate values for Qc. However, frequency-dependent measurements showed better coefficient correlation in BPF model. |
| abstract_unstemmed |
Abstract The present study tries to explore the characteristics of seismic coda wave energy attenuation in northwestern Iranian plateau. For this purpose, coda waves from more than 1600 small crustal events with magnitudes ranging from ML 2 to 5 and epicenteral distances of less than 150 km have been used. Joint least squares method was used to estimate coda wave quality factor Qc based on the single backscattering model. In the first step, the frequency-dependent Qc values were estimated by a Butterworth band-pass filter, BPF, at central frequencies of 1.5, 3, 6, 12, and 24 Hz in different lapse times of 30 to 90 s. Moreover, in order to study the amplitude decay with time in certain frequency ranges as another approach, short time Fourier transform (STFT) has been used to separate different composed signals of an earthquake waveform in time-frequency domain. The results show the frequency-dependent Qc as (110 to 158)f(0.87 to 0.91) and (73 to 179)f(0.81 to 0.93) for BPF and STFT approaches in different lapse time windows, respectively, where f is between 1.5 and 24 Hz. Obtained quality factor values exhibit relatively consistent and similar results for both BPF and STFT models. Due to lower standard deviations, STFT model shows slightly more accurate values for Qc. However, frequency-dependent measurements showed better coefficient correlation in BPF model. |
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| container_issue |
5 |
| title_short |
Coda wave attenuation in the northwestern Iran, using short time Fourier transform |
| url |
https://dx.doi.org/10.1007/s10950-019-09856-9 |
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| author2 |
Heidari, Reza Mirzaei, Noorbakhsh Rahimi, Habib Meshinchi-Asl, Mirsatar |
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Heidari, Reza Mirzaei, Noorbakhsh Rahimi, Habib Meshinchi-Asl, Mirsatar |
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| doi_str |
10.1007/s10950-019-09856-9 |
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2024-07-04T03:30:12.393Z |
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| score |
7.4018106 |