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About me
About me
我在1991年從國立臺灣大學地質系畢業後，因考慮到個人在地球物理領域較感興趣，於是選擇和當時仍位在臺大校園（現今的全球變遷中心）的中央研究院地球所郭本垣研究員和臺大海洋研究所海洋地質和地球物理組的喬凌雲教授修習碩士，研究有關東南印度洋脊的澳洲-南極錯亂帶（Australia-Antarctica Discordance, AAD) ，其海床地形和大地水準面呈現明顯下陷負異常的動力成因。
1993年6月取得碩士學位後到美國布朗大學地質科學系（現今改名為地球，環境與行星科學系）攻讀地球物理的博士學位，指導教授為Donald Forsyth，主要從事中洋脊以及附近年輕海洋岩石圈速度以及非均向震波速度構造的分析與模擬以及板內地震群震源特性和成因。
1998年5月取得博士學位後，同年8月到美國普林斯頓大學地質科學系擔任理論地震學家Tony Dahlen 和Guust Nolet 教授的博士後研究員，發展並驗證體波有限頻寬算核理論（或暱稱為香蕉-甜甜圈理論）以及應用於全球層析成像(seismic tomography)的研究，直到2001年1月，於2001年2月回到臺大地質科學系任教至今。
在近30年的學術生涯中，我的研究主要在於探索地球內部的震波速度變化、衰減（attenuation）特性和非均向性（anisotropy）形態等物理性質，藉以了解地球內部構造的演化和背後驅動的動力機制。
使用的資料主要來自於全球的永久地震網或是各研究區域短期臨時架設的密集地震測站，包括陸地以及海底地震儀所記錄到的地震波形記錄以及連續的周遭噪訊，透過各種反演成像或是正演模擬的技術，例如震波走時波線或有限頻寬層析成像，直達P和S波以及尾波振幅衰減趨勢，遠震接收函數分析、剪力波分離測量，表面波相速度頻散曲線反演等方法。
研究區域的範圍大到全球整個地函，小至南臺灣隱沒-碰撞過渡帶區域，深度則是從淺部地殼到地函-地核邊界，包含太平洋海床、台灣、北美、加拿大西南邊、紐西蘭、加勒比海、冰島、芬諾斯勘迪亞地盾、南加州、西藏、琉球俯衝帶、華北、亞速爾群島熱點、東太平洋隆起等區域。
My primary research interest lies in the field of Geophysics, with a particular focus on seismic structure and earthquake source studies. My work encompasses a wide range of topics, including the investigation of seismic velocity structures, attenuation, and anisotropy of the Earth's interior. These studies utilize seismic waves, ambient noise, and seismic tomography/imaging as key data sources and essential tools to probe the Earth's internal structure and earthquake source characteristics, thereby enhancing our understanding of plate tectonics, mantle dynamics, rupture processes, and fault mechanisms.
Over the last three decades, my research has spanned a broad range of tectonic environments worldwide, including the Pacific seafloor, Taiwan, southwestern Canada, New Zealand, the Caribbean, Iceland, the Fennoscandian Shield, Southern California, Tibet, the Ryukyu subduction zone, North China, the Azores hotspot, and the East Pacific Rise. This global engagement reflects a sustained effort to understand seismic structures and activities across a variety of tectonic regimes—from subduction zones and continental collision belts to oceanic spreading centers and intraplate settings.
A major ongoing inititative is SALUTE (Southern Array for the Lithosphere and Uplift of Taiwan Experiment), a large-scale amphibious broadband seismic array aimed at imaging the lithospheric architecture and active tectonic processes underlying Southern Taiwan and its eastern offshore regions. This area represents a geodynamically complex and atypical transition from continental subduction to arc-continent collision. SALUTE integrates dense deployments of land-based and ocean-bottom seismometers, providing a robust foundation for collaborative investigations into crustal and upper mantle structure, orogenic processes, regional seismicity, and associated seismic hazards.
Journal Articles
Journal Articles
Finite-Frequency Travel-Time Tomography
Finite-Frequency Travel-Time Tomography
Oldest-1
Kang, H., Kim, Y., Hung, S., Lin, P. P., Isse, T., Kawakatsu, H., Lee, S., Utada, H., Takeuchi, N., Shiobara, H., Sugioka, H., & Kim, S. (2023). Seismic velocity structure of upper mantle beneath the oldest pacific seafloor: Insights from finite‐frequency tomography. Geochemistry, Geophysics, Geosystems, 24(9). https://doi.org/10.1029/2022gc010833
Western Canada
Chen, Y., Gu, Y. J., & Hung, S.-H. (2017). Finite-frequency p-wave tomography of the western canada sedimentary basin: Implications for the lithospheric evolution in Western Laurentia. Tectonophysics, 698, 79–90. https://doi.org/10.1016/j.tecto.2017.01.006
Chen, Y., Y. J. Gu, S.-H. Hung (2018). A new appraisal of lithospheric structures of the Cordillera-Craton boundary region in western Canada, Tectonics, 37, 3207–3228. https://doi.org/10.1029/2018TC004956.
Chen, Y., Y. J. Gu, C. A., Currie, S. T., Johnson, S.-H. Hung, A. J. Schaeffer, and P. Audet (2019). Seismic evidence for a mantle suture and implications for the origin of the Canadian Cordillera, Nature Communications 10, 2249.
Chen, Y., Y. J. Gu, C. A., L. M. Heaman, L. Wu, E. Saygin, and S.-H. Hung (2020). Reconciling seismic structures and Late Cretaceous kimberlite magmatism in northern Alberta, Canada, Geology, 48(9), 872–876. https://doi.org/10.1130/g47163.1
Southwestern Fennoscandian Shield
Kolstrup, M. L., Hung, S.-H., & Maupin, V. (2015). Multiscale, finite-frequency P and s tomography of the upper mantle in the southwestern Fennoscandian Shield. Geophysical Journal International, 202(1), 190–218. https://doi.org/10.1093/gji/ggv130
Central Tibet (Hi-CLIMB Experiment)
Hung, S.-H., Chen, W.-P., & Chiao, L.-Y. (2011). A data-adaptive, multiscale approach of finite-frequency, traveltime tomography with special reference to P and S wave data from Central Tibet. Journal of Geophysical Research, 116(B6). https://doi.org/10.1029/2010jb008190
Hung, S.-H., W.-P. Chen, L.-Y. Chiao, and T.-L. Tseng (2010), First multi-scale, finite-frequency tomography illuminates 3-D anatomy of the Tibetan Plateau, Geophys. Res. Lett., 37, L06304, doi:10.1029/2009GL041875.
Chen, W.-P., S.-H. Hung, T.-L. Tseng, M. Brudzinski, Z. Yang, and R. L. Nowack (2012), Rheology of the continental lithosphere: Progress and new perspectives, Gondwana Res., doi:10.1016/j.gr.2011.07.013.
China
Obrebski, M., Allen, R. M., Zhang, F., Pan, J., Wu, Q., & Hung, S. (2012). Shear wave tomography of China using joint inversion of body and surface wave constraints. Journal of Geophysical Research: Solid Earth, 117(B1). https://doi.org/10.1029/2011jb008349
Guo, Z., K. Wang, Y. Yang, Y. Tang, Y. Chen, and S.-H. Hung (2018). The origin and mantle dynamics of quaternary intraplate volcanism in Northeast China from joint inversion of surface wave and body wave, J. Geophys. Res.: Solid Earth, 123, 2410–2425. https://doi.org/10.10022017JB014948
Finite-Frequency (Banana-Doughnut) Theory
Finite-Frequency (Banana-Doughnut) Theory
Dahlen, F. A., Hung, S.-H., & Nolet, G. (2000). Fréchet kernels for finite-frequency traveltimes—I. Theory. Geophysical Journal International, 141(1), 157–174. https://doi.org/10.1046/j.1365-246X.2000.00070.x
Hung, S.-H., Dahlen, F. A., & Nolet, G. (2000). Fréchet kernels for finite-frequency traveltimes—II. Examples. Geophysical Journal International, 141(1), 175–203. https://doi.org/10.1046/j.1365-246X.2000.00072.x
Anisotropy Tomography
Anisotropy Tomography
Southern California
Lin, Y., Zhao, L., & Hung, S. (2014). Full‐Wave Multiscale Anisotropy Tomography in Southern California. Geophysical Research Letters, 41(24), 8809–8817. https://doi.org/10.1002/2014gl061855
Receiver Function
Receiver Function
Taiwan
Goyal, A., & Hung, S. H. (2021). Lateral Variations of Moho Depth and Average Crustal Properties Across the Taiwan Orogen From H‐V Stacking of P and S Receiver Functions. Geochemistry, Geophysics, Geosystems, 22(3). https://doi.org/10.1029/2020gc009527
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