CONTENTS Page ABSTRACT : PREFACE . BACKGROUND . CHAPTER 1 1.1 1.2 1.3 1.4 1.5 GROUND MOTION FROM MIKE SHOT OF OPERATION IVY Plan of the Experimen Choice of Instrument Stations Instrumentation . . e e . 1.4.1 Set Range and Calibration of Accelerometers . 1.4.2 Installation of Instruments . Data Analysis 1.5.1 Accelerations . 1.5.3 Displacements Velocities Discussion of Results Conclusions CHAPTER 2 2.1 2.2 2.3 2.4 2.5 11 . Purpose 1.5.2 1.6 1.7 . ° . . ° GROUND MOTION FROM! CASTLE Purpose Plan of the Experiment Instrumentation . Data Analysis Conclusions . 13 13 13 13 15 15 15 19 19 24 25 27 28 31 31 31 32 32 34 APPENDIX A GROUND-MOTION CURVES, OPERATIONS IVY AND CASTLE. 35 APPENDIX B DATA PROCESSING . 50 B.1 B.2 B.3 B.4 B.5 B.6 B.7 Normal Processing Types of Error . Integration Influence of Errors . . Correction Procedure Example Evaluation e 50 50 51 51 52 52 55