Fenglin Niu - Presentations

Presentations of Fenglin Niu

2007

Q.-F. Chen, F. Niu, Seismic evidence for a distinctly anisotropic innermost inner core, AGU Fall meeting, 10-14 December, 2007, San Francisco, California, USA.
E. Vanacore, F. Niu, Searching for Seismic Signatures of a Plume Source at the Base of the Mantle below the Galapagos Island Hotspot, AGU Fall meeting, 10-14 December, 2007, San Francisco, California, USA.
J. Li, Q.-F., Chen, E. Vanacore, F. Niu, Topography of the 660-km discontinuity beneath northeast China : Implications for a retrograde motion of the subducting Pacific slab, AGU Fall meeting, 10-14 December, 2007, San Francisco, California, USA.
F. Niu, P. Silver, T. Daley, E. Majer, Prerupture Dilatancy Observed from Active Source Monitoring at the Parkfield SAFOD Drill Site, AGU Fall meeting, 10-14 December, 2007, San Francisco, California, USA.
T. M. Daley, F. Niu, P. G. Silver, E. L. Majer, S. M. Benson, Continuous Crosswell Seismic Measurement: Applications to Monitoring of Stress and CO 2, AGU Fall meeting, 10-14 December, 2007, San Francisco, California, USA.
X. Cheng, F. Niu, P. G. Silver, R. M. Nadeau Seismic imaging of scatterer migration using waveform data of repeating earthquakes, AGU Fall meeting, 10-14 December, 2007, San Francisco, California, USA.
T. Taira, P. G. Silver, F. Niu, and R. M. Nadeau, Dynamic Weakening of the San Andreas Fault by the 2004 Sumatra-Andaman Earthquake, AGU Fall meeting, 10-14 December, 2007, San Francisco, California, USA.
L. Li, Q.-F. Chen, X. Cheng, F. Niu, Spatial clustering and repeating of seismic events observed along the 1976 Tangshan fault, North China, AGU Fall meeting, 10-14 December, 2007, San Francisco, California, USA.
M. S. Miller, F. Niu, A. Levander, Upper mantle structure beneath the Caribbean – South American plate boundary from surface wave tomography, AGU Fall meeting, 10-14 December, 2007, San Francisco, California, USA.
M, Growdon, G. Pavlis, F. Niu, Shear Wave Splitting Observations on the Caribbean-South American Plate Boundary: Evidence for Vertically Coherent Deformation Induced by Trench Rollback, AGU Fall meeting, 10-14 December, 2007, San Francisco, California, USA.
S. A. Clark, A. Levander, F. Niu, C. A. Zelt, M. Sobiesiak, and M. B. Magnani, Seismic Evidence for a Vertical Tear in the South American Lithosphere Offshore Venezuela, AGU Fall meeting, 10-14 December, 2007, San Francisco, California, USA.
A. Levander, F. Niu, M. S. Miller, Y. Zhai, K. Liu, USArray Receiver Function Images of the Lithosphere in the Western U.S., AGU Fall meeting, 10-14 December, 2007, San Francisco, California, USA.
Y. Ma, F. Niu, H. Zhou, Y. Chen, Joint inversion of teleseismic receiver functions and Rayleigh wave dispersion for crustal and upper mantle structures: a comparison of linear and nonlinear inversions, AGU Fall meeting, 10-14 December, 2007, San Francisco, California, USA.
J. Huang, S. Ni, F. Niu, R. Fu, Source mechanism of the 2006 M5.1 Wen'an Earthquake determined from a joint inversion of local and teleseismic broadband waveform data, AGU Fall meeting, 10-14 December, 2007, San Francisco, California, USA.
A. Levander, F. Niu, and M. S. Miller, Receiver function images of the lithosphere in the western U.S., GSA Annual Meeting, October 28-31 2007, Denver, USA.
A. Levander, F. Niu, C. A. Zelt, M. S. Miller, S. Clark, M. Bezada, M. Sobiesiak, G. Pavlis, M. Schmitz, Images of continental lithospheric bending, tearing, and rebound in the southeastern Caribbean plate boundary, GSA Annual Meeting, October 28-31 2007, Denver, USA.
M. S. Miller, F. Niu, Localized seismic scatterers near the core-mantle boundary beneath the Caribbean Sea : evidence from PKP precursors, S31B-01, AGU Joint Assembly, May 22-25, Acapulco, Mexico.
S. A. Clark, A. Levander, C. A. Zelt, F. Niu, M. Sobiesiak, Wide-angle velocity modeling and receiver functions imaging a lithospheric shear tear in the southeast Caribbean-South America plate boundary, S44A-07, AGU Joint Assembly, May 22-25, Acapulco, Mexico.
M. S. Miller, F. Niu, Small-scale seismic heterogeneity near the inner core boundary: evidence from Indonesian earthquakes, SSA Annual meeting, April 11-13, 2007, Annual Meeting, Kona, Hawaii, USA.
F. Niu, The distinct uppermost and innermost of the inner core, Massachusetts Institute of Technology, April 4, 2007, Boston, USA.
F. Niu, P. G. Silver, T. Daley, E.L. Majer, Continuous in-situ measurement of stress-induced travel time variation at Parkfield, EarthScope National Meeting, March 27–30, 2007, Monterey, CA., USA.

2006

F. Niu, Constraints on seismic anisotropy of the innermost inner core from observations of antipode PKIIKP phases,U41D-06, AGU Fall Meeting, December 11-16, 2006, San Francisco, California, USA.

E. Vanacore, F. Niu, Imaging mid-mantle structure beneath South America using S to P converted waveforms, S41E-04, AGU Fall meeting, December 11-16, 2006, San Francisco, California, USA.
J. Hawthorne, F. Niu, Mapping the D" Discontinuity beneath Northern Pacific and Aleutians with USArray and California Seismic Networks, U41A-0809, AGU Fall meeting, December 11-16, 2006, San Francisco, California, USA.
Y. He, A. Levander, F. Niu, Waveform Inversion of the Teleseismic Wavefield, S51A-1253, AGU Fall meeting, December 11-16, 2006, San Francisco, California, USA.
Y. Fukao, M. Obayashi, T. Nakakuki, T. Irifune, D. Yamazaki, F. Niu, A Mechanism of Slab Stagnation in The Mantle Transition Zone, U11A-06, AGU Fall meeting, December 11-16, 2006, San Francisco, California, USA.
X. Cheng, F. Niu, P.G. Silver, T. Daley, E.L. Majer. Continuous in-situ measurement of stress-induced travel time variation at Parkfield NG42A-04, AGU Fall meeting, December 11-16, 2006, San Francisco, California, USA.
B. Wang, P. Zhu, Y. Chen, F. Niu, B. Wang, Continuous in-situ measurement of stress-induced travel time variation with coda interferometry, S44B-04, AGU Fall meeting, December 11-16, 2006, San Francisco, California, USA.
T. Taira, P.G. Silver, F. Niu, R.M. Nadeau, Direct Detection of Temporal Variations in Seismic Scatterers at Seismogenic Depth Attributed to the 2004 Parkfield Earthquake, S23C-0185, AGU Fall meeting, December 11-16, 2006, San Francisco, California, USA.
M. Bezada, F. Niu, T. Baldwin, G. Pavlis, F. Vernon, H Rendon, C. Zelt, M. Schmitz. A. Levander, Crustal Thickness Variations along the Southeastern Caribbean Plate Boundary from Teleseismic and Active Source Seismic Data, T43D-1674, AGU Fall meeting, December 11-16, 2006, San Francisco, California, USA.
S. Clark, F. Niu, A. Levander, Tearing the lithosphere: Diachronous slab detachment along the Venezuelan margin from BOLIVAR seismic data, T42C-06, AGU Fall meeting, December 11-16, 2006, San Francisco, California, USA.
M. Growdon, G. Pavlis, F. Niu, Mantle Structure at Tectonic Corners: an Investigation of Venezuela and SE Alaska Using Shear-wave Splitting Measurements, T43D-1681, AGU Fall meeting, December 11-16, 2006, San Francisco, California, USA.
F. Niu, Array Seismology: Imaging Structure, Stress and Processes, Institute of Earthquake Science, China Earthquake Administration, October 26, Beijing, China.
S. Grand, Y. Chen, H. Kawakatsu, J. Ni, F. Niu, M. Obayashi, S. Tanaka., NorthEast China Extended SeiSmic Array (NECESSArray): Deep Subduction, Mantle Dynamics and Continental Evolution beneath Northeast China, AGU Western Pacific Geophysics Meeting, INVITED, July 24-26, 2006, Beijing, China.
F. Niu, Seismic discontinuities/scatterers in the mid-mantle, State University of New York at Stony Brook, July 24, 2006, Stony Brook, NY, USA.
F. Niu, Thickness of a cratonic lithosphere, Institute of Earthquake Science, China Earthquake Administration, June 27, 2006, Beijing, China.
F. Niu, G. Pavlis, F. Vernon, H. Rendon, Crustal thickness variations in the Southeastern Caribbean and Venezuela: Implications for continental growth, IRIS annual workshop, June 8-10, 2006, Tucson, Arizona, USA.
F. Niu, East-west hemispherical dichotomy of seismic structures at the top of the inner core - a cold war? New Mexico State University, February 26, 2006, Las Cruces, NM, USA.

2005

F. Niu, W. D. Mooney, Crustal Structure beneath China Inferred from Receiver Function and Apparent SS wave Splitting, T41A-1272, AGU Fall meeting, 5-9 December, 2005, San Francisco, California, USA.
E. A. Vanacore, F. Niu, Search for mid-mantle discontinuities at approximately 1000 km depth in South America using S to P conversions and SS precursors, S41C-1009, AGU Fall meeting, 5-9 December, 2005, San Francisco, California, USA.
X. Cheng, F. Niu, P. G. Silver, S. Horiuchi, K. Takai, Repeat microearthquakes observed in western Nagano, Japan and implications to rupture dynamics, S43A-1054, AGU Fall meeting, 5-9 December, 2005, San Francisco, California, USA.
P. G. Silver, F. Niu, T. M. Daley, E. L. Majer, Developing a Methodology for Observing Stress-Induced Temporal Variations in Travel Time: A Progress Report, INVITED, NG32A-03, AGU Fall meeting, 5-9 December, 2005, San Francisco, California, USA.
A. T. Arogunmati, C. A. Zelt, A. Levander, F. Niu, Seismic Structure of the Leeward Antilles Arc and Growth of the South American continent, T11B-0389, AGU Fall meeting, 5-9 December, 2005, San Francisco, California, USA.
T. Taira, P. G. Silver, F. Niu, R. M. Nadeau, A Simultaneous Imaging Method of Multiple Scattering Modes for Detecting a Fault-Zone Heterogeneous Structure of the San Andreas Fault, Parkfield, California, T21A-0445, AGU Fall meeting, 5-9 December, 2005, San Francisco, California, USA.
S. Ham, A. Levander, F. Niu, Kirchhoff Migration of Synthetic Receiver Functions: Subducting Slabs and Mantle Discontinuities, T33B-0537, AGU Fall meeting, 5-9 December, 2005, San Francisco, California, USA.
A. Levander, F. Niu, S. Ham, M. Obayashi, Imaging the Subducting Pacific Slab Beneath Southwestern Japan, T41F-07, AGU Fall meeting, 5-9 December, 2005, San Francisco, California, USA.
F. Niu, Crustal and mantle seismic structure beneath southern Africa: Thickness of the Tectosphere, Tohoku University, July 4, 2005, Sendai, Japan.
F. Niu, Inner core anisotropy and hemisphericity, Earthquake Research Institute, University of Tokyo, July 8, 2005, Tokyo, Japan.

A. Levander, F. Niu, S. Ham, Pre-Stack Kirchhoff Depth Migrated Images of the Upper Mantle, INVITED, Joint Meeting of AGU, SEG, NABS and SPD/AAS, 23-27 May, 2005, New Orleans, USA,

P. G. Silver, F. Niu, T. Daley, E Majer, Developing a Methodology for Measuring Stress Transients at Seismogenic Depth, Joint Meeting of AGU, SEG, NABS and SPD/AAS, 23-27 May, 2005, New Orleans, USA
T. Taira, P. G. Silver, F. Niu, and R. M. Nadeau, Multimode Imaging of Seismic Coda Waves for Detecting the Fault-zone Heterogeneous Structure of the San Andreas Fault at Parkfield, California, SSA Annual Meeting, April 27 - 29, 2005, Incline Village, Nevada, USA.
F. Niu, X. Cheng, P. G. Silver, R. M. Nadeau, Temporal variations in the scattered wavefield associated with the 1993 Parkfield aseismic transient event: a comparison between borehole and surface instruments, Earthscope National Meeting, March 29-31, 2005, Santa Ana Pueblo, New Mexico, USA.
T. Taira, P. G. Silver, F. Niu, and R. M. Nadeau, Detection of a fault-zone heterogeneous structure of the San Andreas Fault, CA, using a multimode imaging of seismic coda waves, Earthscope National Meeting, March 29-31, 2005, Santa Ana Pueblo, New Mexico, USA.

2004

F. Niu, A. Levander, M. Obayashi, P to S scattered-wave imaging of the subducting slabs beneath Japan, AGU Fall meeting, 13-17 December, 2004, San Francisco, California, USA.

S. Ham, F. Niu, A. Levander, M. Obayashi,Mantle discontinuities beneath Japan determined from CCP stacking of receiver functions, AGU Fall meeting, 13-17 December, 2004, San Francisco, California, USA.

E. Vanacore, F. Niu, H. Kawakatsu, A synthesis on lower mantle reflectors/scatterers and discontinuities beneath the western Pacific subduction zones, AGU Fall meeting, 13-17 December, 2004, San Francisco, California, USA.
A. Perez, F. Niu, Seismic anisotropy in the lower mantle: a comparison of waveform splitting of SKS and SKKS, AGU Fall meeting, 13-17 December, 2004, San Francisco, California, USA.

X. Chen, F. Niu, P.G. Silver, R. M. Nadeau, A search for temporal variations in the scattered wavefield associated with the 1993 Parkfield aseismic transient event: a calibration between borehole and surface instruments, AGU Fall meeting, 13-17 December, 2004, San Francisco, California, USA.
T. Taira, P.G.Silver, F. Niu, R.M. Nadeau, Scattered savefield within the San Andreas Fault system, AGU Fall meeting, 13-17 December, 2004, San Francisco, California, USA.
P.G. Silver, F. Niu, T. Daley, and E. Majer, Developing a methodology for measuring stress transients at seismogenic depth, AGU Fall meeting, 13-17 December, 2004, San Francisco, California, USA.

F. Niu, East-west hemispherical dichotomy of seismic structure at the top of the inner core, Texas A & M University, 9 September 2004, College station, USA.

P.G. Silver, F. Niu, T. Daley, and E. Majer, Developing a Methodology for Measuring Stress-Induced Temnporal Variations in Seismic Velocity: Successful Use of Barometric Pressure and Solid-Earth Tides as Calibration Signal, INVITED, International workshop on Active Monitoring in the Solid Earth Geophysics, 30 June - 3 July 2004, Mizunami, Japan.

F. Niu, Seismic discontinuities/scatterers in the mid-mantle, Beijing University, 13 June 2004, Beijing, China.

L. Wen, W.-C. Yu, F. Niu, The Global Seismographic Network and the Earth's Inner Core, Joint Meeting of AGU,CGU, EEGS and SEG, 17-21 May, 2004, Montreal, Canada.
F. Niu, P.G. Silver, M.D. Behn, Measuring Anisotropy in the Oceanic Upper Mantle from Splitting in SS Waveforms, INVITED, Joint Meeting of AGU,CGU, EEGS and SEG, 17-21 May, 2004, Montreal, Canada.
C.-T. A. Lee, A. Lenardic, C.M. Cooper, F. Niu, A. Levander, On the possible role of chemical boundary layers in regulating the thermal thickness of continents and oceans, Joint Meeting of AGU,CGU, EEGS and SEG, 17-21 May, 2004, Montreal, Canada.
F. Niu, A. Levander, C.M. Cooper, C.-T. A. Lee, A. Lenardic, D.E. James, Depth of the tectosphere beneath Kaapvaal craton,Joint Meeting of AGU,CGU, EEGS and SEG, 17-21 May, 2004, Montreal, Canada.
P.G. Silver, F. Niu, T. Daley, and E. Majer, Developing a Methodology for Measuring Stress-Induced Temporal Variations in Seismic Velocity: Successful Use of Barometric Pressure on Solid-Earth Tides as Calibration Signals, SSA Annual Meeting, 13-16 April, 2004, Palm Springs, California, USA.

2003

F. Niu, H. Kawakatsu and Y. Fukao, Physical property of a chemical heterogeneity in the mid-mantle: seismic evidence for an oceanic crust in the mid-mantle, AGU Fall meeting, 08-12 December, 2003, San Francisco, California, USA.
M. Obayashi, F. Niu, and L. Wen, Can we achieve consistent inner-core models from ISC travel-time data and waveform data? AGU Fall meeting, 08-12 December, 2003, San Francisco, California, USA.
W.-C. Yu, L. Wen, and F. Niu, Anomalous top layer in the inner core beneath the eastern hemisphere, AGU Fall meeting, 08-12 December, 2003, San Francisco, California, USA.
N. Valette-Silver, P.G. Silver, F. Niu, T. Daley, and E. Majer, Developing a methodology for imaging stress transients at seismogenic depth, AGU Fall meeting, 08-12 December, 2003, San Francisco, California, USA.
S. Ham, F. Niu and A. Levander, Effects of lateral heterogeneities on receiver-function imaging: the case of subducting slab, AGU Fall meeting, 08-12 December, 2003, San Francisco, California, USA.
A. Levander and F. Niu, Receiver-function imaging of the crustal and mantle structure beneath South Africa: a comparison of stacking and migration,AGU Fall meeting, 08-12 December, 2003, San Francisco, California, USA.
F. Niu and P.G. Silver, Temporal variations of seismogram similarities: a new approach to the time-varying stress field, INVITED, 2003 IRIS/UNAVCO annual workshop, 19-21 June, 2003, Yosemite, California, USA.
F. Niu, East-west hemispherical dichotomy of seismic structures at the top of the inner core, AGLseminar, 15 August, 2003, Geoscience Department, University of Houston.
F. Niu, P.G. Silve and R.M. Nadeau, Stress-induced migration of seismic scatterers associated with the 1993 Parkfield aseismic transient, XXIII General Assembly of IUGG, 30 June - 11 July, Sapporo, Hokkaido, Japan
F. Niu, H. Kawakatsu and Y. Fukao, Observations and implications of mid-mantle seismic reflectors beneath the Mariana subduction zone, XXIII General Assembly of IUGG, 30 June - 11 July, Sapporo, Hokkaido, Japan.
F. Niu and L. Wen, East-west hemispherical dichotomy of seismic structures at the top of the inner core and its applications, XXIII General Assembly of IUGG, 30 June - 11 July, Sapporo, Hokkaido, Japan.
F. Niu, A search of mid-mantle reflector using USArray, Imaging Science Workshop, April 25-26, 2003, Houston, Texas, USA.

2002

F. Niu and H. Kawakatsu, Strong seismic reflectors at mid-mantle depth beneath the Mariana and Indonesia subduction zones, AGU Fall meeting, 05-10 December, 2002, San Francisco, California, USA.
P.G. Silver, F. Niu, and R.M. Nadeau, Stress-Induced Migration of Seismic Scatterers Associated with the 1993 Parkfield Aseismic Transient, AGU Fall meeting, 05-10 December, 2002, San Francisco, California, USA.
W.-C. Yu, L. Wen, and F. Niu, Seismic velocity and attenuation structures at the top 400 km of the inner core, AGU Fall meeting, 05-10 December, 2002, San Francisco, California, USA.
W.-C. Yu, L. Wen, and F. Niu, Seismic structures in the inner and outer core constrained by the PKP observations near the caustic distance range, AGU Spring meeting, 28-31 May, 2002, Washington, DC, USA.
F. Niu and L. Wen, Hemispherical dichotomy at the top 400 km of the inner core, AGU Spring meeting, 28-31 May, 2002, Washington, DC, USA.
F. Niu, S.C. Solomon, P.G. Silver, D. Suetsugu, and H. Inoue, Mantle Transition-zone Structure beneath the South Pacific Superswell and Evidence for a Mantle Plume underlying the Society Hotspot, 14th Annual IRIS Meeting, 12-16 June, 2002, Hawaii, USA.
W.-C. Yu, L. Wen, and F. Niu, Seismic structures in the inner and outer core constrained by the PKP observations near the caustic distance range, AGU Spring meeting, 28-31 May, 2002, Washington, DC, USA.

2001

F. Niu, S.C. Solomon, P.G. Silver, D. Suetsugu, and H. Inoue, Mantle Transition-zone Structure beneath the South Pacific Superswell and Evidence for a Mantle Plume underlying the Society Hotspot, AGU Fall meeting, 10-14 December, 2001, San Francisco, California, USA.
P.G. Silver, F. Niu, R.M. Nadeau, and T.V. McEvilly, A Search for Temporal Variations in Wave-Propagation Characteristics Associated with the 1993 Parkfield Aseismic Transient, AGU Fall meeting, 10-14 December, 2001, San Francisco, California, USA.
D.E. James, F. Niu, and J. Rokosky, Implications for Crustal Formation of the Kaapvaal Craton From High-resolution Broadband Array Studies, AGU Fall meeting, 10-14 December, 2001, San Francisco, California, USA.
T. Saita, D. Suetsugu, H. Takenaka, F. Niu, R.M. Nadeau, and T.V. McEvilly, Transition zone thickness beneath the South Pacific Superswell as inferred from the ScS reverberation and PS-converted waves, AGU Fall meeting, 10-14 December, 2001, San Francisco, California, USA.
F. Niu, L. Wen, P.G. Silver, D.E. James, Sharp lateral transition of seismic velocity at the base of the mantle beneath southwest of Southern Africa, AGU Spring meeting, 29 May - 02 June, 2001, Boston, Massachusetts, USA.
F. Niu, L. Wen, P.G. Silver, D.E. James, Sharp lateral transition of seismic velocity at the base of the mantle beneath southwest of Southern Africa, AGU Spring meeting, 29 May - 02 June, 2001, Boston, Massachusetts, USA.
L. Wen and F. Niu, The top of the inner core: the seismic velocity and attentuation structures and their implications, AGU Spring meeting, 29 May - 02 June, 2001, Boston, Massachusetts, USA.

Back to Home