The Groundwater Project

Distributed Fiber-Optic Hydrogeophysics

Publication year: 2022
Number of pages: 49

ISBN: 978-1-77470-031-0
https://doi.org/10.21083/978-1-77470-031-0

Authors:

Scott W. TylerUniversity of Nevada, USA
John S. SelkerOregon State University, USA
Thom BogaardDelft University of Technology, The Netherlands
Nick van de GiesenDelft University of Technology, The Netherlands
Juan Aquilar-LopezDelft University of Technology, The Netherlands

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Last Update: 26 March 2023
Released: 17 July 2022

Updated: 22 March 2023

Updated: 22 March 2023

Description

In recent years, environmental sensing of the temperature, strain and strain rate has been revolutionized by the development of fiber-optic based measurements. These tools now allow groundwater hydrologists to measure at very high spatial and temporal scales, the temperature of ground and surface water, the rock strain induced by groundwater pumping and land subsidence, and seismic signals for inversion of complex geologic structures.

This book summarizes the theory and examples of the use of Distributed Temperature Sensing (DTS), Distributed Strain Sensing and Distributed Acoustic Sensing (DAS) for subsurface characterization and analysis of groundwater/surface water exchange.

Contents

DEDICATION

TABLE OF CONTENTS

THE GROUNDWATER PROJECT FOREWORD

FOREWORD

PREFACE

ACKNOWLEDGMENTS

1 INTRODUCTION

2 BASIC PRINCIPLES OF FIBER SENSING

3 FIBER OPTIC DISTRIBUTED TEMPERATURE SENSING (DTS)

3.1 DTS Applications in Hydrogeology

4 STRAIN MEASUREMENT

4.1 Brillouin Distributed Strain Sensing (BDSS)

4.2 Strain and Strain Rate Measurement: Distributed Acoustic Sensing (DAS)

5 CONCLUSION: THE FUTURE LOOKS OPTICALLY BRIGHT!

6 EXERCISES

7 REFERENCES

8 EXERCISE SOLUTIONS

9 NOTATIONS

10 ABOUT THE AUTHORS

Interview with Authors