Search Results - "Ni, Sidao"

Seismic ocean thermometry by Wu, Wenbo, Zhan, Zhongwen, Peng, Shirui, Ni, Sidao, Callies, Jörn

“…Hearing the heat Most of the excess heat that causes global warming is absorbed by the oceans. Quantifying that heat increase is challenging because it…”
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Velocity and density characteristics of subducted oceanic crust and the origin of lower-mantle heterogeneities by Wang, Wenzhong, Xu, Yinhan, Sun, Daoyuan, Ni, Sidao, Wentzcovitch, Renata, Wu, Zhongqing

“…Seismic heterogeneities detected in the lower mantle were proposed to be related to subducted oceanic crust. However, the velocity and density of subducted…”
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Two Effective Degrees of Freedom Can Represent the Dominant Features of Global Rayleigh Wave Dispersion Maps by Zhang, Han, Ni, Sidao, Liu, Lijun, Schmandt, Brandon

“…Objectively exploring global variations in crust and upper mantle structure helps constrain fundamental aspects of Earth's plate tectonic and convective…”
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Inferring Earth's discontinuous chemical layering from the 660-kilometer boundary topography by Wu, Wenbo, Ni, Sidao, Irving, Jessica C E

“…Topography, or depth variation, of certain interfaces in the solid Earth can provide important insights into the dynamics of our planet interior. Although the…”
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Identification of Rare Multiple Core‐Mantle Boundary Reflections PmKP Up To P7KP With Deep Learning by Dong, Sheng, Chen, Yulin, Zhang, Baolong, Ni, Sidao, Chen, Xiaofei, Wang, Yi

“…The core‐mantle boundary (CMB) marks the most dramatic changes in physical properties within the Earth, and plays a critical role in the understanding of the…”
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Generation mechanism of the 26 s and 28 s tremors in the Gulf of Guinea from statistical analysis of magnitudes and event intervals by Chen, Yongyan, Xie, Jun, Ni, SiDao

“…•Magnitude of the 26 s and 28 s signals are like the Gutenberg-Richter relation.•Interval time distributions of the 26 s and 28 s signals conform to a Poisson…”
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An SEM-DSM three-dimensional hybrid method for modelling teleseismic waves with complicated source-side structures by Wu, Wenbo, Ni, Sidao, Zhan, Zhongwen, Wei, Shengji

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Multipathing Rayleigh Waves From Long‐Distance Noise Cross Correlation Along an Ocean‐Continent Boundary (Alaska to California) by Xia, Yingjie, Ni, Sidao, Tape, Carl

“…Seismic interferometry can reliably extract interstation surface waves in homogeneous or smooth media. We test the validity of this technique in the case of…”
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A persistent localized microseismic source near the Kyushu Island, Japan by Zeng, Xiangfang, Ni, Sidao

“…Very strong signals with apparent velocity higher than Rayleigh wave velocity are observed on noise correlation functions (NCFs) between seismic stations in…”
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Crustal rheology from focal depths in the North China Basin by Dong, Yibing, Ni, Sidao, Yuen, David A., Li, Zhiwei

“…In order to investigate earthquakes in the lower crust of North China Basin (NCB), we develop a new method of resolving very accurately the focal depth for…”
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Crustal radial anisotropy beneath Cameroon from ambient noise tomography by Ojo, Adebayo Oluwaseun, Ni, Sidao, Li, Zhiwei

“…To increase the understanding of crustal deformation and crustal flow patterns due to tectonic processes in Cameroon, we study the lateral variability of the…”
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The Pawnee earthquake as a result of the interplay among injection, faults and foreshocks by Chen, Xiaowei, Nakata, Nori, Pennington, Colin, Haffener, Jackson, Chang, Jefferson C., He, Xiaohui, Zhan, Zhongwen, Ni, Sidao, Walter, Jacob I.

“…The Pawnee M5.8 earthquake is the largest event in Oklahoma instrument recorded history. It occurred near the edge of active seismic zones, similar to other…”
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Small-scale layered structures at the inner core boundary by Zhang, Baolong, Ni, Sidao, Wu, Wenbo, Shen, Zhichao, Wang, Wenzhong, Sun, Daoyuan, Wu, Zhongqing

“…The fine-scale seismic features near the inner core boundary (ICB) provide critical insights into the thermal, chemical, and geodynamical interactions between…”
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Source locations of teleseismic P, SV, and SH waves observed in microseisms recorded by a large aperture seismic array in China by Liu, Qiaoxia, Koper, Keith D., Burlacu, Relu, Ni, Sidao, Wang, Fuyun, Zou, Changqiao, Wei, Yunhao, Gal, Martin, Reading, Anya M.

“…Transversely polarized seismic waves are routinely observed in ambient seismic energy across a wide range of periods, however their origin is poorly understood…”
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Shallow magma chamber under the Wudalianchi Volcanic Field unveiled by seismic imaging with dense array by Li, Zhiwei, Ni, Sidao, Zhang, Baolong, Bao, Feng, Zhang, Senqi, Deng, Yang, Yuen, David A.

“…The Wudalianchi Volcano Field (WDF) is a typical intraplate volcano in northeast China with generation mechanism not yet well understood. As its last eruption…”
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Sensitivities of diffracted PKKPab waves to the velocity structures in the lowermost mantle by Chen, Yulin, Ni, Sidao, Zhang, Baolong, Zhao, Li, Song, Xiaodong, Wang, Yi

“…SUMMARY Diffractions of PKKPab (${\rm{PKKP}}_{{\rm{ab}}}^{{\rm{diff}}}$) along the core mantle boundary (CMB) have been observed well beyond its cutoff…”
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Multi-instrument observations of microseisms generated by typhoon Kalmaegi (2014) over the Northwestern Pacific by Lin, Jianmin, Fang, Sunke, Xu, Wen, Ni, Sidao, Zhang, Han, Yang, Ting

“…•We investigated microseisms induced by Kalmaegi with multi-instrument observations.•A novel frequency-domain beamforming method was proposed to track…”
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Automatic determination of focal depth with the optimal period of Rayleigh wave amplitude spectra at local distances by He, Xiaohui, Zhang, Peizhen, Ni, Sidao, Chu, Risheng, Wu, Wenbo, Zheng, Kaiyue

“…SUMMARY Focal depth of earthquakes is essential for studies of seismogenic processes and seismic hazards. In regions with dense seismic networks, focal depth…”
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Detections of ultralow velocity zones in high-velocity lowermost mantle linked to subducted slabs by Su, Yulong, Ni, Sidao, Zhang, Baolong, Chen, Yulin, Wu, Wenbo, Li, Mingming, Sun, Heping, Hou, Mingqiang, Cui, Xiaoming, Sun, Daoyuan

“…Ultralow velocity zones revealed by seismological observations at the core–mantle boundary lend clues to the physico-chemical characteristics and dynamic…”
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Seismological Constraints on the Small‐Scale Heterogeneity in the Lowermost Mantle Beneath East Asia and Implication for Its Mineralogical Origin by Zhang, Baolong, Ni, Sidao, Sun, Daoyuan

“…Previous seismological studies have focused on the large‐scale heterogeneity of the D″ layer beneath East Asia. Here, we use high‐frequency PcP precursors…”
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