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A comprehensive handbook on state-of-the-art DAS technology and applications Distributed Acoustic Sensing (DAS) is a technology that records sound and vibration signals along a fiber optic cable. Its advantages of high resolution, continuous, and real-time measurements mean that DAS systems have been rapidly adopted for a range of applications, including hazard mitigation, energy industries, geohydrology, environmental monitoring, and civil engineering. Distributed Acoustic Sensing in Geophysics: Methods and Applications presents experiences from both industry and academia on using DAS in a range of geophysical applications. Volume highlights include: * DAS concepts, principles, and measurements * Comprehensive review of the historical development of DAS and related technologies * DAS applications in hydrocarbon, geothermal, and mining industries * DAS applications in seismology * DAS applications in environmental and shallow geophysics The American Geophysical Union promotes discovery in Earth and space science for the benefit of humanity. Its publications disseminate scientific knowledge and provide resources for researchers, students, and professionals.
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212 The Early Earth: Accretion and DifferentiationJames Badro and Michael Walter (Eds.)
213 Global Vegetation Dynamics: Concepts and Applications in the MC1 ModelDominique Bachelet and David Turner (Eds.)
214 Extreme Events: Observations, Modeling and EconomicsMario Chavez, Michael Ghil, and Jaime Urrutia‐Fucugauchi (Eds.)
215 Auroral Dynamics and Space WeatherYongliang Zhang and Larry Paxton (Eds.)
216 Low‐Frequency Waves in Space PlasmasAndreas Keiling, Dong‐Hun Lee, and Valery Nakariakov (Eds.)
217 Deep Earth: Physics and Chemistry of the Lower Mantle and CoreHidenori Terasaki and Rebecca A. Fischer (Eds.)
218 Integrated Imaging of the Earth: Theory and ApplicationsMax Moorkamp, Peter G. Lelievre, Niklas Linde, and Amir Khan (Eds.)
219 Plate Boundaries and Natural HazardsJoao Duarte and Wouter Schellart (Eds.)
220 Ionospheric Space Weather: Longitude and Hemispheric Dependences and Lower Atmosphere ForcingTimothy Fuller‐Rowell, Endawoke Yizengaw, Patricia H. Doherty, and Sunanda Basu (Eds.)
221 Terrestrial Water Cycle and Climate Change Natural and Human‐Induced ImpactsQiuhong Tang and Taikan Oki (Eds.)
222 Magnetosphere‐Ionosphere Coupling in the Solar SystemCharles R. Chappell, Robert W. Schunk, Peter M. Banks, James L. Burch, and Richard M. Thorne (Eds.)
223 Natural Hazard Uncertainty Assessment: Modeling and Decision SupportKarin Riley, Peter Webley, and Matthew Thompson (Eds.)
224 Hydrodynamics of Time‐Periodic Groundwater Flow: Diffusion Waves in Porous MediaJoe S. Depner and Todd C. Rasmussen (Auth.)
225 Active Global SeismologyIbrahim Cemen and Yucel Yilmaz (Eds.)
226 Climate ExtremesSimon Wang (Ed.)
227 Fault Zone Dynamic ProcessesMarion Thomas (Ed.)
228 Flood Damage Survey and Assessment: New Insights from Research and PracticeDaniela Molinari, Scira Menoni, and Francesco Ballio (Eds.)
229 Water‐Energy‐Food Nexus – Principles and PracticesP. Abdul Salam, Sangam Shrestha, Vishnu Prasad Pandey, and Anil K Anal (Eds.)
230 Dawn–Dusk Asymmetries in Planetary Plasma EnvironmentsStein Haaland, Andrei Rounov, and Colin Forsyth (Eds.)
231 Bioenergy and Land Use ChangeZhangcai Qin, Umakant Mishra, and Astley Hastings (Eds.)
232 Microstructural Geochronology: Planetary Records Down to Atom ScaleDesmond Moser, Fernando Corfu, James Darling, Steven Reddy, and Kimberly Tait (Eds.)
233 Global Flood Hazard: Applications in Modeling, Mapping and ForecastingGuy Schumann, Paul D. Bates, Giuseppe T. Aronica, and Heiko Apel (Eds.)
234 Pre‐Earthquake Processes: A Multidisciplinary Approach to Earthquake Prediction StudiesDimitar Ouzounov, Sergey Pulinets, Katsumi Hattori, and Patrick Taylor (Eds.)
235 Electric Currents in Geospace and BeyondAndreas Keiling, Octav Marghitu, and Michael Wheatland (Eds.)
236 Quantifying Uncertainty in Subsurface SystemsCeline Scheidt, Lewis Li, and Jef Caers (Eds.)
237 Petroleum EngineeringMoshood Sanni (Ed.)
238 Geological Carbon Storage: Subsurface Seals and Caprock IntegrityStephanie Vialle, Jonathan Ajo‐Franklin, and J. William Carey (Eds.)
239 Lithospheric DiscontinuitiesHuaiyu Yuan and Barbara Romanowicz (Eds.)
240 Chemostratigraphy Across Major Chronological ErasAlcides N. Sial, Claudio Gaucher, Muthuvairavasamy Ramkumar, and Valderez Pinto Ferreira (Eds.)
241 Mathematical Geoenergy:Discovery, Depletion, and RenewalPaul Pukite, Dennis Coyne, and Daniel Challou (Eds.)
242 Ore Deposits: Origin, Exploration, and ExploitationSophie Decree and Laurence Robb (Eds.)
243 Kuroshio Current: Physical, Biogeochemical and Ecosystem DynamicsTakeyoshi Nagai, Hiroaki Saito, Koji Suzuki, and Motomitsu Takahashi (Eds.)
244 Geomagnetically Induced Currents from the Sun to the Power GridJennifer L. Gannon, Andrei Swidinsky, and Zhonghua Xu (Eds.)
245 Shale: Subsurface Science and EngineeringThomas Dewers, Jason Heath, and Marcelo Sánchez (Eds.)
246 Submarine Landslides: Subaqueous Mass Transport Deposits From Outcrops to Seismic ProfilesKei Ogata, Andrea Festa, and Gian Andrea Pini (Eds.)
247 Iceland: Tectonics, Volcanics, and Glacial FeaturesTamie J. Jovanelly
248 Dayside Magnetosphere InteractionsQiugang Zong, Philippe Escoubet, David Sibeck, Guan Le, and Hui Zhang (Eds.)
249 Carbon in Earth’s InteriorCraig E. Manning, Jung‐Fu Lin, and Wendy L. Mao (Eds.)
250 Nitrogen Overload: Environmental Degradation, Ramifications, and Economic CostsBrian G. Katz
251 Biogeochemical Cycles: Ecological Drivers and Environmental ImpactKaterina Dontsova, Zsuzsanna Balogh‐Brunstad, and Gaël Le Roux (Eds.)
252 Seismoelectric Exploration: Theory, Experiments, and ApplicationsNiels Grobbe, André Revil, Zhenya Zhu, and Evert Slob (Eds.)
253 El Niño Southern Oscillation in a Changing ClimateMichael J. McPhaden, Agus Santoso, and Wenju Cai (Eds.)
254 Dynamic Magma EvolutionFrancesco Vetere (Ed.)
255 Large Igneous Provinces: A Driver of Global Environmental and Biotic ChangesRichard. E. Ernst, Alexander J. Dickson, and Andrey Bekker (Eds.)
256 Coastal Ecosystems in Transition: A Comparative Analysis of the Northern Adriatic and Chesapeake BayThomas C. Malone, Alenka Malej, and Jadran Faganeli (Eds.)
257 Hydrogeology, Chemical Weathering, and Soil FormationAllen Hunt, Markus Egli, and Boris Faybishenko (Eds.)
258 Solar Physics and Solar WindNour E. Raouafi and Angelos Vourlidas (Eds.)
259 Magnetospheres in the Solar SystemRomain Maggiolo, Nicolas André, Hiroshi Hasegawa, and Daniel T. Welling (Eds.)
260 Ionosphere Dynamics and ApplicationsChaosong Huang and Gang Lu (Eds.)
261 Upper Atmosphere Dynamics and EnergeticsWenbin Wang and Yongliang Zhang (Eds.)
262 Space Weather Effects and ApplicationsAnthea J. Coster, Philip J. Erickson, and Louis J. Lanzerotti (Eds.)
263 Mantle Convection and Surface ExpressionsHauke Marquardt, Maxim Ballmer, Sanne Cottaar, and Jasper Konter (Eds.)
264 Crustal Magmatic System Evolution: Anatomy, Architecture, and Physico‐Chemical ProcessesMatteo Masotta, Christoph Beier, and Silvio Mollo (Eds.)
265 Global Drought and Flood: Observation, Modeling, and PredictionHuan Wu, Dennis P.Lettenmaier, Qiuhong Tang, and Philip J Ward (Eds.)
266 Magma Redox GeochemistryRoberto Moretti and Daniel R. Neuville (Eds.)
267 Wetland Carbon and Environmental ManagementKen W. Krauss, Zhiliang Zhu, and Camille L. Stagg (Eds.)
268 Distributed Acoustic Sensing in Geophysics: Methods and ApplicationsYingping Li, Martin Karrenbach, and Jonathan B. Ajo‐Franklin (Eds.)
Yingping LiMartin KarrenbachJonathan B. Ajo‐Franklin
Editors
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Library of Congress Cataloging‐in‐Publication DataNames: Li, Yingping, editor. | Karrenbach, Martin, editor. | Ajo-Franklin, Jonathan, editor.Title: Distributed acoustic sensing in geophysics : methods and applications / Yingping Li, Martin Karrenbach, Jonathan Ajo-Franklin, editor.Description: First edition. | Hoboken, NJ : Wiley-American Geophysical Union, [2021] | Series: Geophysical monograph series | Includes bibliographical references.Identifiers: LCCN 2021015330 (print) | LCCN 2021015331 (ebook) | ISBN 9781119521792 (cloth) | ISBN 9781119521822 (adobe pdf) | ISBN 9781119521778 (epub)Subjects: LCSH: Geophysics—Methodology. | Optical fiber detectors. | Imaging systems in geophysics. | Microseisms. | Tomography.Classification: LCC QC808.5 .D57 2021 (print) | LCC QC808.5 (ebook) | DDC 681/.25—dc23LC record available at https://lccn.loc.gov/2021015330LC ebook record available at https://lccn.loc.gov/2021015331
Cover Design: WileyCover Image: © Jonathan Ajo‐Franklin
Fan AiSchool of Optical and Electronic InformationNational Engineering Laboratory for Next Generation Internet Access SystemHuazhong University of Science and TechnologyWuhan, China
Jonathan B. Ajo‐FranklinDepartment of Earth, Environmental and Planetary SciencesRice UniversityHouston, Texas, USAandEnergy Geosciences DivisionLawrence Berkeley National LaboratoryBerkeley, California, USA
Jonathan A. BaldwinU.S. Army Corps of EngineersWashington, District of Columbia, USA
Biondo L. BiondiDepartment of GeophysicsStanford UniversityStanford, California, USAandInstitute for Computational and Mathematical EngineeringStanford, California, USA
Joel Le CalvezSchlumbergerHouston, Texas, USA
Timothy Robert CarrDepartment of Geology and GeographyWest Virginia UniversityMorgantown, West Virginia, USA
Athena ChalariSilixa Ltd.Elstree, UK
Yuan‐Zhong ChenSchool of Information and Communication EngineeringUniversity of Electronic Science and Technology of ChinaChengdu, ChinaandBGP Inc.China National Petroleum CorporationZhuozhou, China
Robert G. ClappDepartment of GeophysicsStanford UniversityStanford, California, USA
Thomas ColemanSilixa LLC.,Missoula, Montana, USA
Julia CorreaEnergy Geosciences DivisionLawrence Berkeley National LaboratoryBerkeley, California, USAandCentre for Exploration GeophysicsCurtin UniversityPerth, AustraliaandCO2CRC LimitedMelbourne, Australia
Thomas M. DaleyEnergy Geosciences DivisionLawrence Berkeley National LaboratoryBerkeley, California, USA
Shan DouVisier Inc. Vancouver, British Columbia, Canada
Yuting DuanShell Technology CenterHouston, Texas, USA
Andreas EllmauthalerHalliburtonHouston, Texas, USA
Cunzheng FanSchool of Optical and Electronic InformationNational Engineering Laboratory for Next Generation Internet Access SystemHuazhong University of Science and TechnologyWuhan, China
Mahmoud FarhadiroushanSilixa Ltd.Elstree, UK
Kurt L. FeiglDepartment of GeoscienceUniversity of Wisconsin–MadisonMadison, Wisconsin, USA
Shengwen FengKey Laboratories of Transducer TechnologyInstitute of SemiconductorsChinese Academy of SciencesBeijing, ChinaandCollege of Materials Science and Opto‐Electronic TechnologyUniversity of Chinese Academy of SciencesBeijing, China
Dante FrattaDepartment of Civil and Environmental EngineeringUniversity of Wisconsin–MadisonMadison, Wisconsin, USA
Barry M. FreifeldClass VI Solutions Inc. Oakland, California, USA
Stanislav GlubokovskikhCentre for Exploration GeophysicsCurtin UniversityPerth, AustraliaandCO2CRC LimitedMelbourne, Australia
Guang‐Min HuSchool of Information and Communication EngineeringUniversity of Electronic Science and Technology of ChinaChengdu, China
Jian‐Hua HuangBGP Inc.China National Petroleum CorporationZhuozhou, China
Fantine HuotDepartment of GeophysicsStanford UniversityStanford, California, USA
Payam Kavousi GhahfarokhiDepartment of Geology and GeographyWest Virginia UniversityMorgantown, West Virginia, USA
Martin KarrenbachOptaSense Inc. (A LUNA Company)Brea, California, USA
Denis KiyashchenkoShell Technology CenterHouston, Texas, USA
Chelsea E. LancelleDepartment of Civil and Environmental EngineeringUniversity of Wisconsin–PlattevillePlatteville, Wisconsin, USA
Michel J. LeBlancHalliburtonHouston, Texas, USA
Fang LiKey Laboratories of Transducer TechnologyInstitute of SemiconductorsChinese Academy of SciencesBeijing, ChinaandCollege of Materials Science and Opto‐Electronic TechnologyUniversity of Chinese Academy of SciencesBeijing, China
Fei LiBGP Inc.China National Petroleum CorporationZhuozhou, China
Hao LiSchool of Optical and Electronic InformationNational Engineering Laboratory for Next Generation Internet Access SystemHuazhong University of Science and TechnologyWuhan, China
Xiaolei LiOVLINK Inc.Wuhan, China
Yan‐Peng LiBGP Inc.China National Petroleum CorporationZhuozhou, China
Yingping LiBlueSkyDas (formerly Shell)Houston, Texas, USA
Nathaniel J. LindseyFiberSenseSydney, Australia
Deming LiuSchool of Optical and Electronic InformationNational Engineering Laboratory for Next Generation Internet Access SystemHuazhong University of Science and TechnologyWuhan, China
Jorge LopezShell Brasil Petróleo Ltda.Rio de Janeiro, Brazil
Neal LordDepartment of GeoscienceUniversity of Wisconsin–MadisonMadison, Wisconsin, USA
Lilong MaKey Laboratories of Transducer TechnologyInstitute of SemiconductorsChinese Academy of SciencesBeijing, ChinaandCollege of Materials Science and Opto‐Electronic TechnologyUniversity of Chinese Academy of SciencesBeijing, China
Eileen R. MartinDepartment of MathematicsVirginia Polytechnic Institute and State UniversityBlacksburg, Virginia, USA
Keithan MartinDepartment of Geology and GeographyWest Virginia UniversityMorgantown, West Virginia, USA
Albena MateevaShell Technology CenterHouston, Texas, USA
Takashi MizunoSchlumbergerHouston, Texas, USA
Inder MongaEnergy Sciences NetworkLawrence Berkeley National LaboratoryBerkeley, California, USA
Tom ParkerSilixa Ltd.Elstree, UK
Roman PevznerCentre for Exploration GeophysicsCurtin UniversityPerth, AustraliaandCO2CRC LimitedMelbourne, Australia
Daniel RaymerSchlumbergerHouston, Texas, USA
Michelle RobertsonEnergy Geosciences DivisionLawrence Berkeley National LaboratoryBerkeley, California, USA
Verónica Rodríguez TribaldosEnergy Geosciences DivisionLawrence Berkeley National LaboratoryBerkeley, California, USA
Sergey ShatalinSilixa Ltd.Elstree, UK
Qizhen SunSchool of Optical and Electronic InformationNational Engineering Laboratory for Next Generation Internet Access SystemHuazhong University of Science and TechnologyWuhan, China
Konstantin TertyshnikovCentre for Exploration GeophysicsCurtin UniversityPerth, AustraliaandCO2CRC LimitedMelbourne, Australia
Clifford H. ThurberDepartment of GeoscienceUniversity of Wisconsin–MadisonMadison, Wisconsin, USA
Chris TracyEnergy Sciences NetworkLawrence Berkeley National LaboratoryBerkeley, California, USA
Whitney Trainor‐GuittonDepartment of GeophysicsColorado School of MinesGolden, Colorado, USAandW Team GeosolutionsTwin Falls, Idaho, USA
Craig UlrichEnergy Geosciences DivisionLawrence Berkeley National LaboratoryBerkeley, California, USA
Herbert F. WangDepartment of GeoscienceUniversity of Wisconsin–MadisonMadison, Wisconsin, USA
Shi‐Ze WangBGP Inc.China National Petroleum CorporationZhuozhou, China
Mark E. WillisHalliburtonHouston, Texas, USA
Cody WilsonDepartment of Geology and GeographyWest Virginia UniversityMorgantown, West Virginia, USA
Todd WoodEnergy Geosciences DivisionLawrence Berkeley National LaboratoryBerkeley, California, USA
Jun‐Jun WuBGP Inc.China National Petroleum CorporationZhuozhou, China
Xiang WuHalliburton Far East Pte. Ltd.Singapore
Tuanwei XuKey Laboratories of Transducer TechnologyInstitute of SemiconductorsChinese Academy of SciencesBeijing, ChinaandCollege of Materials Science and Opto‐Electronic TechnologyUniversity of Chinese Academy of SciencesBeijing, China
Zhijun YanSchool of Optical and Electronic InformationNational Engineering Laboratory for Next Generation Internet Access SystemHuazhong University of Science and TechnologyWuhan, China
Kaiheng YangKey Laboratories of Transducer TechnologyInstitute of SemiconductorsChinese Academy of SciencesBeijing, ChinaandCollege of Materials Science and Opto‐Electronic TechnologyUniversity of Chinese Academy of SciencesBeijing, China
Sinem YavuzCentre for Exploration GeophysicsCurtin UniversityPerth, AustraliaandCO2CRC LimitedMelbourne, Australia
Gang YuBGP Inc.China National Petroleum CorporationZhuozhou, ChinaandSchool of Information and Communication EngineeringUniversity of Electronic Science and Technology of ChinaChengdu, China
Siyuan YuanDepartment of GeophysicsStanford UniversityStanford, California, USA
Xiangfang ZengState Key Laboratory of Geodesy and Earth’sDynamics Innovation Academy for Precision Measurement Science and TechnologyChinese Academy of SciencesWuhan, ChinaandDepartment of GeoscienceUniversity of Wisconsin–MadisonMadison, Wisconsin, USA
Wei ZhangSchool of Optical and Electronic InformationNational Engineering Laboratory for Next Generation Internet Access SystemHuazhong University of Science and TechnologyWuhan, China
Reza Barati
Matt Becker
Gary Binder
Biondo L. Biondi
Stefan Buske
Dongjie Cheng
Feng Cheng
Steve Cole
Julia Correa
Thomas M. Daley
Timothy Dean
Yuting Duan
Mahmoud Farhadiroushan
Barry M. Freifeld
Andrew Greenwood
Alireza Haghighat
Ge Jin
John Michael Kendall
Hunter Knox
Ivan Lim Chen Ning
Nathaniel J. Lindsey
Min LouLinquing Luo
Stefan Lüth
Eileen R. Martin
Robert Mellors
Khalid Miah
Douglas Miller
Takashi Mizuno
Gerrit Olivier
Roman Pevzner
Michelle Robertson
Verónica Rodríguez Tribaldos
Bill Roggenthen
Baishali Roy
Ali Sayed
Alireza Shahkarami
Robert Stewart
Aleksei Titov
Whitney Trainor‐Guitton
Milovan Urosevic
Guchang Wang
Herbert F. Wang
Erik Westman
Ethan Williams
Mark E. Willis
Xiangfang Zeng
Ge Zhan
Zhongwen Zhan
Haijiang Zhang
Ran Zhou
Ding Zhu
Tieyuan Zhu
Distributed acoustic sensing (DAS) systems are optoelectronic instruments that measure acoustic interactions (distributed strain or strain rate) along the length of a fiber‐optic sensing cable. DAS observation systems can record sound and vibration signals along several tens of kilometers of sensing optical fiber with fine spatial resolution (1–10 m) and over a wide frequency range (from millihertz to tens of kilohertz). DAS provides a large sensing aperture for acquiring high‐resolution acoustic data in both time and space domains. The advantages of DAS technology have enabled its rapid adoption across a range of applications, including geophysics geohydrology, environmental monitoring, geotechnical and civil engineering (railroad, tunnel, and bridge monitoring), hazard mitigation and prevention, and safety and security fields.
This monograph focuses on various DAS applications in geophysics. The use of DAS in the oil, gas, geothermal, and mining industries for high‐resolution borehole and surface seismic imaging, and microseismic monitoring for hydraulic fractures has accelerated with improvements in the sensitivity of DAS instruments, advances in real‐time big data processing, and flexible and economic deployment of fiber‐optic sensing cables. There is also growing interest in using DAS for critical geophysical infrastructure applications, such as earthquake and near‐surface passive seismic analysis, including the development of tailored or novel numerical techniques. This book aims to engage both the scientific and industrial communities to share their knowledge and experiences of using DAS for novel geophysical applications.
The origin of this book was the 2017 American Geophysical Union (AGU) Fall Meeting, when scientists and engineers from both industry and academia gathered in New Orleans to present their fantastic research outcomes on DAS instrumentations and applications in geophysics and seismology. As DAS technologies have continued to advance, more and more successful geophysical DAS applications have been reported and published in different geophysical and seismological journals, abstracts, and proceedings of technical conferences, such as the AGU, the Society of Exploration Geophysicists (SEG), the European Association of Geoscientists and Engineers (EAGE), the Society of Petroleum Engineers (SPE), and the Seismological Society of America (SSA). However, few DAS books are available on DAS principles, instrumentation, and geophysical applications. Many attendees at the DAS sessions at the 2017 AGU Fall Meeting expressed that there was a need for a book on DAS geophysical applications. We had interesting discussions with many scientists and engineers working on the frontier of DAS geophysical applications about the potential for a book. We specially recognize Biondo L. Biondi, Thomas M. Daley, William Ellsworth, Mahmoud Farhadiroushan, Barry M. Freifeld, Albena Mateeva, Robert Mellors, Clifford H. Thurber, Herbert Wang, and Mark E. Willis, as well as many others for their encouragement.
During the 2017 AGU Fall Meeting in New Orleans, we fortunately got an opportunity to meet with the AGU Books Editor, Dr. Bose, who was already aware of this rapidly growing scientific field. We discussed a potential book on DAS geophysical applications, and she was very supportive and invited us to submit a book proposal for an AGU monograph. With no surprise, this DAS book proposal received very positive comments and constructive suggestions from all reviewers. Several reviewers also asked for an opportunity to submit their own contributions to this monograph. We are grateful to those anonymous reviewers of the book proposal for their positive comments and constructive suggestions that led this book to be initiated.
This monograph is organized into four parts. Part I starts with principles of DAS measurements and instruments. DAS interrogation units transmit a pulse of laser light into the fiber. As this pulse of light travels down the fiber, interactions within the fiber result in light reflections known as backscatter (Rayleigh scattering). Backscatters are determined by tiny strain events within the fiber, which in turn are caused by localized acoustic energy. This backscattered light travels back up the fiber toward the interrogation unit where it is sampled. Part II introduces various DAS applications in the oil and gas, geothermal, and mining industries. Part III looks at DAS applications in seismic monitoring. DAS microseismic monitoring of hydraulic fracturing is an industry application but with passive seismic sources. The microseismic DAS method has been shown to have sufficient sensitivity to record very small magnitude microearthquakes with DAS deployed in boreholes. Microseismic DAS systems can be naturally extended to monitoring larger earthquake activity, and slow deformation of Earth’s structure with large‐scale fiber‐optic networks. Part IV discusses DAS environmental and shallow geophysical applications such as geological carbon dioxide sequestration. The final chapter presents a review of fiber optical sensing applications in geophysics including historical developments and recent advances. The list of over 900 literature references of DAS and related technologies will benefit readers, especially newcomers who have just stepped into this fast-growing field.
We would like to thank the AGU Books Editorial Board for supporting this monograph. Without the efforts from contributing authors it would not have been possible to accomplish this project. We would also like to thank the many volunteer reviewers who spent tremendous amounts of time and effort to ensure that each chapter is of the highest quality. We appreciate Jonathan B. Ajo‐Franklin, Biondo L. Biondi, Mahmoud Farhadiroushan, Albena Mateeva, and Siyuan Yuan for providing their pictures as candidates for the book cover design. Thanks are also extended to the AGU Books editorial team at Wiley, especially Dr. Rituparna Bose, Layla Harden, Noel McGlinchey, Vaishali Rajasekar, Sangaprabha Mohan, Bobby Kilshaw, Nithya Sechin, and Emily Bae, for their organization, management, and cover design.
This monograph will be the first comprehensive handbook for anyone interested in learning DAS principles and applications. We hope that the book will have a wide spectrum of readers – such as geophysicists, seismologists, geologists, and geoscientists; environmental scientists; and graduate and undergraduate students in geophysics and geoscience – with a common interest in DAS geophysical applications. This book also provides a common platform to the scientific and industry communities to share state‐of‐the‐art DAS technology.
Yingping Li
BlueSkyDas (formerly Shell), USA
Martin Karrenbach
OptaSense Inc. (A LUNA Company), USA
Jonathan B. Ajo‐Franklin
Rice University and Lawrence BerkeleyNational Laboratory, USA
