许效华

办公电话:
邮箱:
xiaohua-xu@ustc.edu.cn
科研领域:
空间大地测量,卫星遥感。 1. 应变与地震矩累积过程:使用大地测量方法估计断层滑移速率,应变与地震矩累计速率,断层与非断层应变分析,以及相关地震地质灾害。 2. 地表形变观测与模拟:大-中尺度地震与震间形变以及相关断层活动,岩浆活动,地下资源攫取,冰面移动,水文活动相关的地表形变与模拟。 3. 大批量InSAR数据处理:GMTSAR开源软件开发(https://github.com/gmtsar),InSAR相关处理方法,时序分析。
 学术经历

2022-今于中国科学技术大学任特任教授

2021-2022于德州大学奥斯汀分校任副研究员(research associate)

2017-2021于Scripps海洋研究所任博士后 (postdoctoral researcher)

2017年于加州大学圣地亚哥分校获得地球科学博士学位

2012年于中国科学技术大学获得本科地球物理学学士学位

 荣誉奖项

2021 Outstanding Young Research at UTIG

2020 SRL TOP cited paper

2020 SRL TOP downloaded paper

2010 宝钢奖学金

2009 赵九章奖学金

 论文专著

32.  Xu, X., Liu, D., Lavier, L., A Geodetic Approach on Constraining Fault Properties, in review for GRL.

31.  Stephenson, O. L., Liu, Y. K., Yunjun, Z., Simons, M., Rosen, P., & Xu, X., (2022) The Impact of Plate Motions on Long Wavelength InSAR Derived Velocity Fields. Geophysical Research Letters, e2022GL099835.35.

30.  Yin, H. Z., Xu, X., Haase, J. S., Douilly, R., Sandwell, D. T., & de Lepinay, B. M. (2022) Surface Deformation Surrounding the 2021 Mw 7.2 Haiti Earthquake Illuminated by InSAR Observations. Bulletin of the Seismological Society of America.

29.  Ward, L., Guns, K., Smith-Konter, B., Xu, X., Bock, Y., Sandwell., D. (2022) Vertical Postseismic Deformation of the 2019 Ridgecrest Earthquake Sequence, Journal of Geophysical Research: Solid Earth, e2021JB023331.

28.  Guns, K., Xu, X., Bock, Y., Sandwell, D.T., (2022) GNSS-corrected InSAR Displacement Time Series Spanning the 2019 Ridgecrest, CA Earthquake. Geophysical Journal International.

27.  Tong, X., Xu, X., & Chen, S. (2022). Coseismic Slip Model of the 2021 Maduo Earthquake, China from Sentinel-1 InSAR Observation. Remote Sensing, 14(3), 436.

26.  Wang, W., Shearer, P. M., Vidale, J. E., Xu, X., Trugman, D. T., & Fialko, Y. (2022). Tidal modulation of seismicity at the Coso geothermal field. Earth and Planetary Science Letters, 579, 117335.

25. Xu, X., Sandwell, D. T., Klein, E., & Bock, Y. (2021). Integrated Sentinel1 InSAR and GNSS timeseries along the San Andreas fault system. Journal of Geophysical Research: Solid Earth, e2021JB022579.

24.  Hu, X., Bürgmann, R., Xu, X., Fielding, E., & Liu, Z. (2021) Machinelearning characterization of tectonic, hydrological and anthropogenic sources of active ground deformation in California. Journal of Geophysical Research: Solid Earth, e2021JB022373.

23.  Golriz, D., Bock, Y., & Xu, X. (2021). Defining the Coseismic Phase of the Crustal Deformation Cycle With Seismogeodesy. Journal of Geophysical Research: Solid Earth, 126(10), e2021JB022002.

22.  Ward, L. A., SmithKonter, B. R., Xu, X., & Sandwell, D. T. (2021). Seismic Moment Accumulation Response to Lateral Crustal Variations of the San Andreas Fault System. Journal of Geophysical Research: Solid Earth, 126(4), e2020JB021208.

21. Xu, X., Sandwell, D. T., Ward, L. A., Milliner, C.W.D., Smith-Konter, B.R., Fang, P., Bock, Y. (2020) Surface deformation associated with fractures near the 2019 Ridgecrest earthquake sequence, Science, 370(6516), 605-608.

20.  Melgar, D., RuizAngulo, A., PérezCampos, X., Crowell, B. W., Xu, X., CabralCano, E., ... & RodriguezAbreu, L. (2020). Energetic Rupture and Tsunamigenesis during the 2020 Mw 7.4 La Crucecita, Mexico Earthquake. Seismological Research Letters

19.  Ponti, D. J., Blair, J. L., Rosa, C. M., Thomas, K., Pickering, A. J., Akciz, S., ... Xu, X.,  ... & Barth, N. (2020). Documentation of Surface Fault Rupture and GroundDeformation Features Produced by the 4 and 5 July 2019 M w 6.4 and M w 7.1 Ridgecrest Earthquake Sequence. Seismological Society of America, 91(5), 2942-2959.

18.  Goldberg, D. E., Melgar, D., Sahakian, V. J., Thomas, A. M., Xu, X., Crowell, B. W., & Geng, J. (2020). Complex rupture of an immature fault zone: A simultaneous kinematic model of the 2019 Ridgecrest, CA earthquakes. Geophysical Research Letters, 47(3), e2019GL086382.

17. Xu, X., Sandwell, D. T., & SmithKonter, B. (2020). Coseismic displacements and surface fractures from Sentinel1 InSAR: 2019 Ridgecrest earthquakes. Seismological Research Letters.

16.  Williamson, A., Melgar, D.D., Xu, X., Milliner, C.W.D., (2020) The 2018 Palu Tsunami: Coeval Landslide and Coseismic Sources, Seismological Research Letters.

15. Sepúlveda, I., Haase, J. S., Carvajal, M., Xu, X., & Liu, P. L. (2020). Modeling the sources of the 2018 Palu, Indonesia, tsunami using videos from social media. Journal of Geophysical Research: Solid Earth, 125(3), e2019JB018675.

14. Xu, X., Sandwell, D.T. (2019). Towards Absolute Phase Recovery with InSAR: Correcting for Earth Tides, Ionosphere, and Phase Unwrapping Ambiguities, IEEE Transactions on Geoscience and Remote Sensing.

13. Klein, E., Bock, Y., Xu, X., Sandwell, D.T., Golriz, D., Fang, P., Su, L. (2019). Transient deformation in California from two decades of GPS displacements: Implications for a three-dimensional kinematic reference frame, Journal of Geophysical Research Solid Earth.

12. Tymofyeyeva, E., Fialko, Y., Jiang, J., Xu, X., Sandwell, D. T., Bilham, R., Rockwell, T. K., Blanton, C., Burkett, F., Gontz, A., Moafipoor, S. (2019). Slow slip event on the southern San Andreas fault triggered by the 2017 Mw 8.2 Chiapas (Mexico) earthquake, Journal of Geophysical Research Solid Earth.

11. Xu, X., Ward, L., Jiang, J., SmithKonter, B., Tymofyeyeva, E., Lindsey, E. O., ... & Sandwell, D. T. (2018). Surface Creep Rate of the Southern San Andreas Fault Modulated by Stress Perturbations from Nearby Large Events. Geophysical Research Letters.

10. Melgar, D., Ruiz-Angulo, A., Garcia, E. S., Manea, M., Manea, V. C., Xu, X., Ramirez-Herrera, T., ... & Ramirez-Guzmán, L. (2018). Deep embrittlement and complete rupture of the lithosphere during the Mw8.2 Tehuantepec earthquake. Nature Geoscience.

9. Xu, X. (2017). Earthquake Cycle Study with Geodetic Tools. University of California, San Diego.

8.    Wang, K., Xu, X., & Fialko, Y. (2017). Improving Burst Alignment in TOPS Interferometry with Bivariate Enhanced Spectral Diversity. IEEE Geoscience and Remote Sensing Letters, 14(12), 2423-2427.

7. Xu, X., Sandwell, D. T., & Bassett, D. (2017). A spectral expansion approach for geodetic slip inversion: implications for the downdip rupture limits of oceanic and continental megathrust earthquakes. Geophysical Journal International, 212(1), 400-411.

6.    Melgar, D., Riquelme, S., Xu, X., Baez, J. C., Geng, J., & Moreno, M. (2017). The first since 1960: A large event in the Valdivia segment of the Chilean Subduction Zone, the 2016 M7. 6 Melinka earthquake. Earth and Planetary Science Letters, 474, 68-75.

5. Xu, X., Sandwell, D. T., Tymofyeyeva, E., González-Ortega, A., & Tong, X. (2017). Tectonic and anthropogenic deformation at the Cerro Prieto geothermal step-over revealed by Sentinel-1A InSAR. IEEE Transactions on Geoscience and Remote Sensing, 55(9), 5284-5292.

4.    Feng, W., Lindsey, E., Barbot, S., Samsonov, S., Dai, K., Li, P., ... & Xu, X. (2017). Source characteristics of the 2015 MW 7.8 Gorkha (Nepal) earthquake and its MW 7.2 aftershock from space geodesy. Tectonophysics, 712, 747-758.

3. Xu, X., Tong, X., Sandwell, D. T., Milliner, C. W., Dolan, J. F., Hollingsworth, J., ... & Ayoub, F. (2016). Refining the shallow slip deficit. Geophysical Journal International, 204(3), 1867-1886.

2.    Galetzka, J., Melgar, D., Genrich, J. F., Geng, J., Owen, S., Lindsey, E. O., Xu, X., ... & Upreti, B. N. (2015). Slip pulse and resonance of the Kathmandu basin during the 2015 Gorkha earthquake, Nepal. Science, 349(6252), 1091-1095.

1.    Lindsey, E. O., Natsuaki, R., Xu, X., Shimada, M., Hashimoto, M., Melgar, D., & Sandwell, D. T. (2015). Lineofsight displacement from ALOS2 interferometry: Mw 7.8 Gorkha Earthquake and Mw 7.3 aftershock. Geophysical Research Letters, 42(16), 6655-6661.


 受邀报告

11.  AGU Fall Meeting 2022, Chicago or Everywhere on-line, (Invited) “Predicting InSAR deformation with GNSS using machine learning”

10.  Southern California Earthquake Center Annual Meeting 2021, On-line, U.S. (Invited) “Mapping faults from space with InSAR: Ridgecrest and beyond”

9.   Geodetic Image Data Workshop on Establishing Community Guidelines and Best Practices for Using Remote Sensing Data in Earthquake Mapping Response, 2021, On-line, U.S. (Invited) “Fractures from InSAR: Real or Unreal?”

8.   University of Texas at Austin, Institute for Geophysics, 2021, Austin, U.S., (Invited) “Probing Earth’s Shallow Crust with Space Geodesy”

7.   University of Houston, Department of Civil and Environmental Engineering, 2021, Houston, U.S., (Invited) “Understanding Earthquake Cycle with Geodetic Tools”

6.   Nanyang Technological University EOS/Math Seminar 2020, Singapore, (Invited) “What can we learn from the surface fractures nearby the Ridgecrest earthquakes?”

5.   University of Science and Technology of China Geophysics Seminar 2020, Hefei, China, (Invited) “What can we learn from the surface fractures nearby the Ridgecrest earthquakes?”

4.   Zhejiang University Earth Department Seminar 2020, Hangzhou, China, (Invited) “What can we learn from the surface fractures nearby the Ridgecrest earthquakes?”

3.   China Earthquake Network Center Seminar 2020, Beijing, China, (Invited) “Imaging surface deformation with InSAR: the Good, the Bad and the Ugly”

2.   NASA/JPL North America Surface Displacement Workshop 2020, CA, U.S. (Invited) “GNSS integration with InSAR, a product or a service?”

1.   NASA Solid Earth Meeting 2019, San Diego, CA, U.S., (Invited) “Sentinel-1 SAR/InSAR: radar for the masses”.