追忆唐•亨伯格教授：地震学大师和非凡导师（英汉对照）

《追忆唐·亨伯格教授：地震学大师和非凡导师》是为了纪念杰出的地震学家、从事地震学研究的研究生和研究人员的良师益友——唐·亨伯格教授。《追忆唐·亨伯格教授：地震学大师和非凡导师》包括了用中英双语撰写的来自著名同事的两篇序言和一篇前言，以及亨伯格教授生前指导的学生的19篇文章。在这些文章中，读者可以找到他的学生参与的许多突破性成果，并体会亨伯格教授在整个职业生涯中遵循的科学哲学和指导方法。在他的指导下，多位学生已经取得了成功，并在自己的研究经历中不断践行他的理念。亨伯格教授提出的地震波形建模已成为限制从内核到地壳的地球结构以及快速量化地震时空破裂行为的关键方法，如今已在地震学科被广泛采用。这些文章证明了亨伯格教授谦逊的科研态度、永葆好奇的求知精神，以及他对解译地震记录的巨大热情，这使他深受研究生和同事们的喜爱。

目录
Chapter 1.Donald V.Helmberger’s art and science of waveforms 1
第1章 唐亨伯格的波形科学与艺术 6
Chapter 2.A graduate student experience with Professor Donald V.Helmberger 11
第2章 一段同唐亨伯格教授的研究生经历 20
Chapter 3.A strange symbiosis: Seismic ray theory and Saturday touch footba ll
—Donald V.Helmberger as a graduate advisor 28
第3章 地震射线理论与周六触身式橄榄球的奇异结合——作为研究生导师的唐亨伯格 34
Chapter 4.Recollections of my mentor，Donald V.Helmberger 39
第4章 回忆我的导师：唐亨伯格 44
Chapter 5.Graduate studies with Donald V.Helmberger 48
第5章 跟随唐亨伯格的研究生学习 52
Chapter 6.Memories of Donald V.Helmberger: Mentor and seismologist extraordinaire 55
第6章 追忆唐亨伯格：杰出的导师和地震学家 60
Chapter 7.How Donald V.Helmberger inspired me 64
第7章 我的人生引路者：唐亨伯格 67
Chapter 8.Working and playing with Don:Memories of Donald V.Helmberger 70
第8章 寓教于乐：追忆唐亨伯格 74
Chapter 9.Donald V.Helmberger memoir—exceptional seismologist，teacher，mentor，friend 77
第9章 唐亨伯格回忆录：杰出的地震学家、教师、导师和朋友 81
Chapter 10.Data and curiosity: Workingwith mentor Donald V.Helmberger 84
第10章 数据和好奇心: 与导师唐亨伯格一起工作 91
Chapter 11.My journey to the center of the Earth: A tribute to Professor Donald V.Helmberger 97
第11章 我的地心之旅：致敬唐亨伯格教授 107
Chapter 12.In memory of Donald V.Helmberger 116
第12章 纪念唐亨伯格 122
Chapter 13.Donald V.Helmberger the Mentor 127
第13章 恩师唐亨伯格 136
Chapter 14.The Lost and the Found:Memories of Donald V.Helmberger 144
第14章 朝花夕拾：回忆唐亨伯格 148
Chapter 15.My seismology journey with Donald V.Helmberger 152
第15章 我和唐亨伯格的地震学之旅 158
Chapter 16.Deep diving with Donald V.Helmberger 163
第16章 跟随唐(Don)悠游于地球深处 169
Chapter 17.A grand master of seismology and mentoring 174
第17章 伟大的地震学家和学术导师 178
Chapter 18.Exploring Earth’s boundaries with Donald V.Helmberger 181
第18章 与唐亨伯格一起探索地球的边界 187
Chapter 19.Donald V.Helmberger，the master mentor: Testimonials from former international students 192
第19章 唐亨伯格，桃李满天下的一代宗师：来自他过去的国际学生的感言 204

Chapter 1. Donald V. Helmberger，s art and science of waveforms
　　Charles Langston*
　　Center for Earthquake Research and Information， University of Memphis， Memphis， TN 38152， USA
　　Correspondence:clangstnamemphis.edu
　　Citation:Langston CA (2022）. Donald V. Helmberger’s art and science of waveforms. Earthq Sci 35(1）:3-5 doi:10.1016/j.eqs.2022.01.001
　　I arrived at the Caltech Seismo Lab early in May 1972. The faculty and graduate students had the run of an old mansion (Donnelly Lab） that was slightly tattered around the edges but conducive to both all-night work sessions and goofing off since it still had well-kept grounds that included a tennis court. Most of the graduate students occupied the large dining room on the first floor and we hunted out our advisors， when needed， by trying their offices around the rest of the house， checking out the tennis courts， or visiting the coffee pot in the basement.
　　Since I arrived several months before the Fall 1972 semester， I was fortunate to be allowed to start working on graduate research. Don was assigned to be my advisor and I visited him in his second-floor office for a first encounter. He got down to business rather quickly by asking me point blank “why do you want to study geophysics?” I was totally unprepared for this question and， in fact， was probably unprepared for any other question as well. While an undergrad at Case Western Reserve， I had developed a burning hate for computer work but an intense love for geology. For some reason， I also did not like seismology， maybe because it was too esoteric， and vowed never to become a seismologist. So， I sat there stunned in front of this seismologist and finally mumbled something about wanting to study the Earth. I think Don just looked at me for a moment probably thinking that here was a guy without a whole lot of promise but that he would run me through some paces over the summer to see what would happen.
　　My first impression of Don was that here was a real scientist doing inscrutable things that I would really like to understand. He was very young， obviously confident and a bit stand-offish， but seemed to be a straight-ahead nice guy without a big ego. After that initial check-out question there was never a time where Don treated me (or any of his other students）other than an equal colleague. I think that this kind of behavior was what made the lab an incredible learning environment. To be treated as an equal meant that a student had to work hard to catch up with the faculty to earn that place of equality， at least in our own minds.
　　Don had me looking at seismograms that first summer. He had finished a short paper with an undergraduate intern on the arrival times of regional Pn and PL waves (York and Helmberger， 1973） and wanted to extend that project to determine crustal and upper mantle structure from the waveforms. of course， I had no idea what to do but picked up some useful skills in digitizing analog seismograms that I used later in my thesis work. It would take another 7 years to complete this program of modeling Pnl waves through his work with staff member Gladys Engen (Helmberger and Engen， 1980）. Even so， that open-ended dive into seismological research from Don’s new perspective of using waveform shapes and amplitudes has stuck with me over my entire career. While staring at the wiggles on the paper that first summer I wondered if there were other ways of recording seismic data that would give an analyst direct knowledge of the properties of the seismic waves so they could be understood much more quickly. This question stewed for many years in my own research and has resulted in some very interesting new techniques in array seismology (e.g.， Langston and Liang， 2008; Langston， 2021）. I fully attribute this to the questions that Don exposed me to that first summer.
　　Don was too young to be considered a father figure to his students at that time. Even so， as I look back to his mentoring， it struck me that he had one characteristic that my own father displayed. That characteristic was allowing freedom. Don allowed me and his other students freedom to pursue our work wherever it led. As graduate student life settled in， Don never dictated what should be done or when it should be done， we simply (and energetically） followed the science hunt to wherever it went. This was an incredible gift which the ensuing years have validated over and over seeing how faculty at other institutions treat (or mistreat） their students.
　　The curriculum at the Lab was unusual in that every course was “Advanced” There was no preparation with lower-level courses that you often find in other university programs. That first year Don taught Advanced Seismology 261a and shared Advanced Seismology 261c with Dave Harkrider. There were no books， just notes which the students dutifully transcribed from the blackboard. Don’s lectures were quite thorough and addressed the theory behind his cutting-edge science. During that first qua