Estimation of scattering and intrinsic attenuation based on multiple lapse time window analysis in Sikkim Himalayan region, India

Attenuation of seismic wave energy was estimated in and around the source region of the Sikkim earthquake of 18 September, 2011 using aftershocks. The main shock had a moment magnitude 6.9 and after this main shock, approximately 283 aftershocks with a magnitude distribution ranging from 1.02 to 5.0...
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Autor*in:	Kumar, Sushil [verfasserIn] Singh, Priyamvada [verfasserIn] Singh, Pitam [verfasserIn] Shekhar, Chandra [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2018

Schlagwörter:	Sikkim earthquake aftershocks Scattering and intrinsic attenuation coefficients Multiple lapse time window analysis Python library functions Hazard assessment

Übergeordnetes Werk:	Enthalten in: Physics of the earth and planetary interiors - Amsterdam [u.a.] : Elsevier Science, 1967, 284, Seite 1-9
Übergeordnetes Werk:	volume:284 ; pages:1-9

DOI / URN:	10.1016/j.pepi.2018.09.006

Katalog-ID:	ELV00108075X

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100	1		\|a Kumar, Sushil \|e verfasserin \|4 aut
245	1	0	\|a Estimation of scattering and intrinsic attenuation based on multiple lapse time window analysis in Sikkim Himalayan region, India
264		1	\|c 2018
336			\|a nicht spezifiziert \|b zzz \|2 rdacontent
337			\|a Computermedien \|b c \|2 rdamedia
338			\|a Online-Ressource \|b cr \|2 rdacarrier
520			\|a Attenuation of seismic wave energy was estimated in and around the source region of the Sikkim earthquake of 18 September, 2011 using aftershocks. The main shock had a moment magnitude 6.9 and after this main shock, approximately 283 aftershocks with a magnitude distribution ranging from 1.02 to 5.0 were recorded by 8 temporary broad band seismometers. In the present study, the relative contributions of scattering attenuation and intrinsic absorption are estimated by multiple lapse time window analysis under the hypothesis of isotropic scattering and a uniform distribution of scatterers in the crustal part of the study area. The coda wave attenuation is also estimated using single backscattering method. All of the attenuation parameters are estimated as a function of frequency in the range 1–16 Hz. The results show that scattering attenuation is greater than intrinsic absorption for all of the frequencies. The relative contribution of scattering attenuation decreases with increasing frequency. Around the 1–4 Hz frequency band, scattering attenuation primarily contributes to seismic wave attenuation in the Sikkim region. The estimated values of seismic albedo ranges from 0.65 to 0.79; as seismic albedo is higher than 0.5 for all frequencies, it is concluded that the medium in the Sikkim Himalayas is highly heterogeneous and tectonically active. Our knowledge of the attenuation mechanism of the Sikkim region is enhanced by the application of the multiple lapse time window analysis method, and results can be useful for the hazard assessment.
650		4	\|a Sikkim earthquake aftershocks
650		4	\|a Scattering and intrinsic attenuation coefficients
650		4	\|a Multiple lapse time window analysis
650		4	\|a Python library functions
650		4	\|a Hazard assessment
700	1		\|a Singh, Priyamvada \|e verfasserin \|4 aut
700	1		\|a Singh, Pitam \|e verfasserin \|4 aut
700	1		\|a Shekhar, Chandra \|e verfasserin \|4 aut
773	0	8	\|i Enthalten in \|t Physics of the earth and planetary interiors \|d Amsterdam [u.a.] : Elsevier Science, 1967 \|g 284, Seite 1-9 \|h Online-Ressource \|w (DE-627)306661365 \|w (DE-600)1500666-9 \|w (DE-576)081986920 \|x 1872-7395 \|7 nnns
773	1	8	\|g volume:284 \|g pages:1-9
912			\|a GBV_USEFLAG_U
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912			\|a GBV_ILN_2021
912			\|a GBV_ILN_2025
912			\|a GBV_ILN_2027
912			\|a GBV_ILN_2034
912			\|a GBV_ILN_2038
912			\|a GBV_ILN_2044
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912			\|a GBV_ILN_2056
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912			\|a GBV_ILN_2061
912			\|a GBV_ILN_2064
912			\|a GBV_ILN_2065
912			\|a GBV_ILN_2068
912			\|a GBV_ILN_2111
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912			\|a GBV_ILN_4323
912			\|a GBV_ILN_4324
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912			\|a GBV_ILN_4333
912			\|a GBV_ILN_4334
912			\|a GBV_ILN_4335
912			\|a GBV_ILN_4338
912			\|a GBV_ILN_4393
936	b	k	\|a 38.70 \|j Geophysik: Allgemeines
936	b	k	\|a 39.53 \|j Planeten
951			\|a AR
952			\|d 284 \|h 1-9

Indexfelder

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matchkey_str	article:18727395:2018----::siainfcteignitiscteutobsdnutpeastmwnoaay
hierarchy_sort_str	2018
bklnumber	38.70 39.53
publishDate	2018
allfields	10.1016/j.pepi.2018.09.006 doi (DE-627)ELV00108075X (ELSEVIER)S0031-9201(17)30336-9 DE-627 ger DE-627 rda eng 550 520 DE-600 38.70 bkl 39.53 bkl Kumar, Sushil verfasserin aut Estimation of scattering and intrinsic attenuation based on multiple lapse time window analysis in Sikkim Himalayan region, India 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Attenuation of seismic wave energy was estimated in and around the source region of the Sikkim earthquake of 18 September, 2011 using aftershocks. The main shock had a moment magnitude 6.9 and after this main shock, approximately 283 aftershocks with a magnitude distribution ranging from 1.02 to 5.0 were recorded by 8 temporary broad band seismometers. In the present study, the relative contributions of scattering attenuation and intrinsic absorption are estimated by multiple lapse time window analysis under the hypothesis of isotropic scattering and a uniform distribution of scatterers in the crustal part of the study area. The coda wave attenuation is also estimated using single backscattering method. All of the attenuation parameters are estimated as a function of frequency in the range 1–16 Hz. The results show that scattering attenuation is greater than intrinsic absorption for all of the frequencies. The relative contribution of scattering attenuation decreases with increasing frequency. Around the 1–4 Hz frequency band, scattering attenuation primarily contributes to seismic wave attenuation in the Sikkim region. The estimated values of seismic albedo ranges from 0.65 to 0.79; as seismic albedo is higher than 0.5 for all frequencies, it is concluded that the medium in the Sikkim Himalayas is highly heterogeneous and tectonically active. Our knowledge of the attenuation mechanism of the Sikkim region is enhanced by the application of the multiple lapse time window analysis method, and results can be useful for the hazard assessment. Sikkim earthquake aftershocks Scattering and intrinsic attenuation coefficients Multiple lapse time window analysis Python library functions Hazard assessment Singh, Priyamvada verfasserin aut Singh, Pitam verfasserin aut Shekhar, Chandra verfasserin aut Enthalten in Physics of the earth and planetary interiors Amsterdam [u.a.] : Elsevier Science, 1967 284, Seite 1-9 Online-Ressource (DE-627)306661365 (DE-600)1500666-9 (DE-576)081986920 1872-7395 nnns volume:284 pages:1-9 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO SSG-OPC-GEO SSG-OPC-AST GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.70 Geophysik: Allgemeines 39.53 Planeten AR 284 1-9
spelling	10.1016/j.pepi.2018.09.006 doi (DE-627)ELV00108075X (ELSEVIER)S0031-9201(17)30336-9 DE-627 ger DE-627 rda eng 550 520 DE-600 38.70 bkl 39.53 bkl Kumar, Sushil verfasserin aut Estimation of scattering and intrinsic attenuation based on multiple lapse time window analysis in Sikkim Himalayan region, India 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Attenuation of seismic wave energy was estimated in and around the source region of the Sikkim earthquake of 18 September, 2011 using aftershocks. The main shock had a moment magnitude 6.9 and after this main shock, approximately 283 aftershocks with a magnitude distribution ranging from 1.02 to 5.0 were recorded by 8 temporary broad band seismometers. In the present study, the relative contributions of scattering attenuation and intrinsic absorption are estimated by multiple lapse time window analysis under the hypothesis of isotropic scattering and a uniform distribution of scatterers in the crustal part of the study area. The coda wave attenuation is also estimated using single backscattering method. All of the attenuation parameters are estimated as a function of frequency in the range 1–16 Hz. The results show that scattering attenuation is greater than intrinsic absorption for all of the frequencies. The relative contribution of scattering attenuation decreases with increasing frequency. Around the 1–4 Hz frequency band, scattering attenuation primarily contributes to seismic wave attenuation in the Sikkim region. The estimated values of seismic albedo ranges from 0.65 to 0.79; as seismic albedo is higher than 0.5 for all frequencies, it is concluded that the medium in the Sikkim Himalayas is highly heterogeneous and tectonically active. Our knowledge of the attenuation mechanism of the Sikkim region is enhanced by the application of the multiple lapse time window analysis method, and results can be useful for the hazard assessment. Sikkim earthquake aftershocks Scattering and intrinsic attenuation coefficients Multiple lapse time window analysis Python library functions Hazard assessment Singh, Priyamvada verfasserin aut Singh, Pitam verfasserin aut Shekhar, Chandra verfasserin aut Enthalten in Physics of the earth and planetary interiors Amsterdam [u.a.] : Elsevier Science, 1967 284, Seite 1-9 Online-Ressource (DE-627)306661365 (DE-600)1500666-9 (DE-576)081986920 1872-7395 nnns volume:284 pages:1-9 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO SSG-OPC-GEO SSG-OPC-AST GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.70 Geophysik: Allgemeines 39.53 Planeten AR 284 1-9
allfields_unstemmed	10.1016/j.pepi.2018.09.006 doi (DE-627)ELV00108075X (ELSEVIER)S0031-9201(17)30336-9 DE-627 ger DE-627 rda eng 550 520 DE-600 38.70 bkl 39.53 bkl Kumar, Sushil verfasserin aut Estimation of scattering and intrinsic attenuation based on multiple lapse time window analysis in Sikkim Himalayan region, India 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Attenuation of seismic wave energy was estimated in and around the source region of the Sikkim earthquake of 18 September, 2011 using aftershocks. The main shock had a moment magnitude 6.9 and after this main shock, approximately 283 aftershocks with a magnitude distribution ranging from 1.02 to 5.0 were recorded by 8 temporary broad band seismometers. In the present study, the relative contributions of scattering attenuation and intrinsic absorption are estimated by multiple lapse time window analysis under the hypothesis of isotropic scattering and a uniform distribution of scatterers in the crustal part of the study area. The coda wave attenuation is also estimated using single backscattering method. All of the attenuation parameters are estimated as a function of frequency in the range 1–16 Hz. The results show that scattering attenuation is greater than intrinsic absorption for all of the frequencies. The relative contribution of scattering attenuation decreases with increasing frequency. Around the 1–4 Hz frequency band, scattering attenuation primarily contributes to seismic wave attenuation in the Sikkim region. The estimated values of seismic albedo ranges from 0.65 to 0.79; as seismic albedo is higher than 0.5 for all frequencies, it is concluded that the medium in the Sikkim Himalayas is highly heterogeneous and tectonically active. Our knowledge of the attenuation mechanism of the Sikkim region is enhanced by the application of the multiple lapse time window analysis method, and results can be useful for the hazard assessment. Sikkim earthquake aftershocks Scattering and intrinsic attenuation coefficients Multiple lapse time window analysis Python library functions Hazard assessment Singh, Priyamvada verfasserin aut Singh, Pitam verfasserin aut Shekhar, Chandra verfasserin aut Enthalten in Physics of the earth and planetary interiors Amsterdam [u.a.] : Elsevier Science, 1967 284, Seite 1-9 Online-Ressource (DE-627)306661365 (DE-600)1500666-9 (DE-576)081986920 1872-7395 nnns volume:284 pages:1-9 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO SSG-OPC-GEO SSG-OPC-AST GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.70 Geophysik: Allgemeines 39.53 Planeten AR 284 1-9
allfieldsGer	10.1016/j.pepi.2018.09.006 doi (DE-627)ELV00108075X (ELSEVIER)S0031-9201(17)30336-9 DE-627 ger DE-627 rda eng 550 520 DE-600 38.70 bkl 39.53 bkl Kumar, Sushil verfasserin aut Estimation of scattering and intrinsic attenuation based on multiple lapse time window analysis in Sikkim Himalayan region, India 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Attenuation of seismic wave energy was estimated in and around the source region of the Sikkim earthquake of 18 September, 2011 using aftershocks. The main shock had a moment magnitude 6.9 and after this main shock, approximately 283 aftershocks with a magnitude distribution ranging from 1.02 to 5.0 were recorded by 8 temporary broad band seismometers. In the present study, the relative contributions of scattering attenuation and intrinsic absorption are estimated by multiple lapse time window analysis under the hypothesis of isotropic scattering and a uniform distribution of scatterers in the crustal part of the study area. The coda wave attenuation is also estimated using single backscattering method. All of the attenuation parameters are estimated as a function of frequency in the range 1–16 Hz. The results show that scattering attenuation is greater than intrinsic absorption for all of the frequencies. The relative contribution of scattering attenuation decreases with increasing frequency. Around the 1–4 Hz frequency band, scattering attenuation primarily contributes to seismic wave attenuation in the Sikkim region. The estimated values of seismic albedo ranges from 0.65 to 0.79; as seismic albedo is higher than 0.5 for all frequencies, it is concluded that the medium in the Sikkim Himalayas is highly heterogeneous and tectonically active. Our knowledge of the attenuation mechanism of the Sikkim region is enhanced by the application of the multiple lapse time window analysis method, and results can be useful for the hazard assessment. Sikkim earthquake aftershocks Scattering and intrinsic attenuation coefficients Multiple lapse time window analysis Python library functions Hazard assessment Singh, Priyamvada verfasserin aut Singh, Pitam verfasserin aut Shekhar, Chandra verfasserin aut Enthalten in Physics of the earth and planetary interiors Amsterdam [u.a.] : Elsevier Science, 1967 284, Seite 1-9 Online-Ressource (DE-627)306661365 (DE-600)1500666-9 (DE-576)081986920 1872-7395 nnns volume:284 pages:1-9 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO SSG-OPC-GEO SSG-OPC-AST GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.70 Geophysik: Allgemeines 39.53 Planeten AR 284 1-9
allfieldsSound	10.1016/j.pepi.2018.09.006 doi (DE-627)ELV00108075X (ELSEVIER)S0031-9201(17)30336-9 DE-627 ger DE-627 rda eng 550 520 DE-600 38.70 bkl 39.53 bkl Kumar, Sushil verfasserin aut Estimation of scattering and intrinsic attenuation based on multiple lapse time window analysis in Sikkim Himalayan region, India 2018 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Attenuation of seismic wave energy was estimated in and around the source region of the Sikkim earthquake of 18 September, 2011 using aftershocks. The main shock had a moment magnitude 6.9 and after this main shock, approximately 283 aftershocks with a magnitude distribution ranging from 1.02 to 5.0 were recorded by 8 temporary broad band seismometers. In the present study, the relative contributions of scattering attenuation and intrinsic absorption are estimated by multiple lapse time window analysis under the hypothesis of isotropic scattering and a uniform distribution of scatterers in the crustal part of the study area. The coda wave attenuation is also estimated using single backscattering method. All of the attenuation parameters are estimated as a function of frequency in the range 1–16 Hz. The results show that scattering attenuation is greater than intrinsic absorption for all of the frequencies. The relative contribution of scattering attenuation decreases with increasing frequency. Around the 1–4 Hz frequency band, scattering attenuation primarily contributes to seismic wave attenuation in the Sikkim region. The estimated values of seismic albedo ranges from 0.65 to 0.79; as seismic albedo is higher than 0.5 for all frequencies, it is concluded that the medium in the Sikkim Himalayas is highly heterogeneous and tectonically active. Our knowledge of the attenuation mechanism of the Sikkim region is enhanced by the application of the multiple lapse time window analysis method, and results can be useful for the hazard assessment. Sikkim earthquake aftershocks Scattering and intrinsic attenuation coefficients Multiple lapse time window analysis Python library functions Hazard assessment Singh, Priyamvada verfasserin aut Singh, Pitam verfasserin aut Shekhar, Chandra verfasserin aut Enthalten in Physics of the earth and planetary interiors Amsterdam [u.a.] : Elsevier Science, 1967 284, Seite 1-9 Online-Ressource (DE-627)306661365 (DE-600)1500666-9 (DE-576)081986920 1872-7395 nnns volume:284 pages:1-9 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OPC-GGO SSG-OPC-GEO SSG-OPC-AST GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 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_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 38.70 Geophysik: Allgemeines 39.53 Planeten AR 284 1-9
language	English
source	Enthalten in Physics of the earth and planetary interiors 284, Seite 1-9 volume:284 pages:1-9
sourceStr	Enthalten in Physics of the earth and planetary interiors 284, Seite 1-9 volume:284 pages:1-9
format_phy_str_mv	Article
bklname	Geophysik: Allgemeines Planeten
institution	findex.gbv.de
topic_facet	Sikkim earthquake aftershocks Scattering and intrinsic attenuation coefficients Multiple lapse time window analysis Python library functions Hazard assessment
dewey-raw	550
isfreeaccess_bool	false
container_title	Physics of the earth and planetary interiors
authorswithroles_txt_mv	Kumar, Sushil @@aut@@ Singh, Priyamvada @@aut@@ Singh, Pitam @@aut@@ Shekhar, Chandra @@aut@@
publishDateDaySort_date	2018-01-01T00:00:00Z
hierarchy_top_id	306661365
dewey-sort	3550
id	ELV00108075X
language_de	englisch
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author	Kumar, Sushil
spellingShingle	Kumar, Sushil ddc 550 bkl 38.70 bkl 39.53 misc Sikkim earthquake aftershocks misc Scattering and intrinsic attenuation coefficients misc Multiple lapse time window analysis misc Python library functions misc Hazard assessment Estimation of scattering and intrinsic attenuation based on multiple lapse time window analysis in Sikkim Himalayan region, India
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topic_title	550 520 DE-600 38.70 bkl 39.53 bkl Estimation of scattering and intrinsic attenuation based on multiple lapse time window analysis in Sikkim Himalayan region, India Sikkim earthquake aftershocks Scattering and intrinsic attenuation coefficients Multiple lapse time window analysis Python library functions Hazard assessment
topic	ddc 550 bkl 38.70 bkl 39.53 misc Sikkim earthquake aftershocks misc Scattering and intrinsic attenuation coefficients misc Multiple lapse time window analysis misc Python library functions misc Hazard assessment
topic_unstemmed	ddc 550 bkl 38.70 bkl 39.53 misc Sikkim earthquake aftershocks misc Scattering and intrinsic attenuation coefficients misc Multiple lapse time window analysis misc Python library functions misc Hazard assessment
topic_browse	ddc 550 bkl 38.70 bkl 39.53 misc Sikkim earthquake aftershocks misc Scattering and intrinsic attenuation coefficients misc Multiple lapse time window analysis misc Python library functions misc Hazard assessment
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title	Estimation of scattering and intrinsic attenuation based on multiple lapse time window analysis in Sikkim Himalayan region, India
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title_full	Estimation of scattering and intrinsic attenuation based on multiple lapse time window analysis in Sikkim Himalayan region, India
author_sort	Kumar, Sushil
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author_browse	Kumar, Sushil Singh, Priyamvada Singh, Pitam Shekhar, Chandra
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title_sort	estimation of scattering and intrinsic attenuation based on multiple lapse time window analysis in sikkim himalayan region, india
title_auth	Estimation of scattering and intrinsic attenuation based on multiple lapse time window analysis in Sikkim Himalayan region, India
abstract	Attenuation of seismic wave energy was estimated in and around the source region of the Sikkim earthquake of 18 September, 2011 using aftershocks. The main shock had a moment magnitude 6.9 and after this main shock, approximately 283 aftershocks with a magnitude distribution ranging from 1.02 to 5.0 were recorded by 8 temporary broad band seismometers. In the present study, the relative contributions of scattering attenuation and intrinsic absorption are estimated by multiple lapse time window analysis under the hypothesis of isotropic scattering and a uniform distribution of scatterers in the crustal part of the study area. The coda wave attenuation is also estimated using single backscattering method. All of the attenuation parameters are estimated as a function of frequency in the range 1–16 Hz. The results show that scattering attenuation is greater than intrinsic absorption for all of the frequencies. The relative contribution of scattering attenuation decreases with increasing frequency. Around the 1–4 Hz frequency band, scattering attenuation primarily contributes to seismic wave attenuation in the Sikkim region. The estimated values of seismic albedo ranges from 0.65 to 0.79; as seismic albedo is higher than 0.5 for all frequencies, it is concluded that the medium in the Sikkim Himalayas is highly heterogeneous and tectonically active. Our knowledge of the attenuation mechanism of the Sikkim region is enhanced by the application of the multiple lapse time window analysis method, and results can be useful for the hazard assessment.
abstractGer	Attenuation of seismic wave energy was estimated in and around the source region of the Sikkim earthquake of 18 September, 2011 using aftershocks. The main shock had a moment magnitude 6.9 and after this main shock, approximately 283 aftershocks with a magnitude distribution ranging from 1.02 to 5.0 were recorded by 8 temporary broad band seismometers. In the present study, the relative contributions of scattering attenuation and intrinsic absorption are estimated by multiple lapse time window analysis under the hypothesis of isotropic scattering and a uniform distribution of scatterers in the crustal part of the study area. The coda wave attenuation is also estimated using single backscattering method. All of the attenuation parameters are estimated as a function of frequency in the range 1–16 Hz. The results show that scattering attenuation is greater than intrinsic absorption for all of the frequencies. The relative contribution of scattering attenuation decreases with increasing frequency. Around the 1–4 Hz frequency band, scattering attenuation primarily contributes to seismic wave attenuation in the Sikkim region. The estimated values of seismic albedo ranges from 0.65 to 0.79; as seismic albedo is higher than 0.5 for all frequencies, it is concluded that the medium in the Sikkim Himalayas is highly heterogeneous and tectonically active. Our knowledge of the attenuation mechanism of the Sikkim region is enhanced by the application of the multiple lapse time window analysis method, and results can be useful for the hazard assessment.
abstract_unstemmed	Attenuation of seismic wave energy was estimated in and around the source region of the Sikkim earthquake of 18 September, 2011 using aftershocks. The main shock had a moment magnitude 6.9 and after this main shock, approximately 283 aftershocks with a magnitude distribution ranging from 1.02 to 5.0 were recorded by 8 temporary broad band seismometers. In the present study, the relative contributions of scattering attenuation and intrinsic absorption are estimated by multiple lapse time window analysis under the hypothesis of isotropic scattering and a uniform distribution of scatterers in the crustal part of the study area. The coda wave attenuation is also estimated using single backscattering method. All of the attenuation parameters are estimated as a function of frequency in the range 1–16 Hz. The results show that scattering attenuation is greater than intrinsic absorption for all of the frequencies. The relative contribution of scattering attenuation decreases with increasing frequency. Around the 1–4 Hz frequency band, scattering attenuation primarily contributes to seismic wave attenuation in the Sikkim region. The estimated values of seismic albedo ranges from 0.65 to 0.79; as seismic albedo is higher than 0.5 for all frequencies, it is concluded that the medium in the Sikkim Himalayas is highly heterogeneous and tectonically active. Our knowledge of the attenuation mechanism of the Sikkim region is enhanced by the application of the multiple lapse time window analysis method, and results can be useful for the hazard assessment.
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title_short	Estimation of scattering and intrinsic attenuation based on multiple lapse time window analysis in Sikkim Himalayan region, India
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author2	Singh, Priyamvada Singh, Pitam Shekhar, Chandra
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up_date	2024-07-06T20:09:59.808Z
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Estimation of scattering and intrinsic attenuation based on multiple lapse time window analysis in Sikkim Himalayan region, India

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