Subsurface mapping by ambient noise tomography: Difference between revisions

Revision as of 16:14, 2 October 2023

Revision as of 16:30, 2 October 2023

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Part 1: Source of Ambient Noise

1. Brief classification of seismic source

6 1.1 typesType of seismic waves

8 1.2 RegularFrequency variationrange of ambient noise

2. Nature of ambient noise: passive/background noise

2.1 Active/Artificial Noise

2.2 Passive/Natural Noise

3. Variation of Ambient Noise

3.1 Cause of variation

1. Active source

9 3.2 CommonPeriodic frequencychange of ambient noise

2. Passive source

74. LimitationDifficulty ofin usingcollecting ambient noise

3. Natural source

4. Artificial source

5. Factor that alter the seismic velocity

6. types of seismic waves

7. Limitation of using ambient noise

8. Regular variation of ambient noise

9. Common frequency of ambient noise

Part 2: Seismic Velocity Structure Modelling

1. Data collection method

1.1 Tools of collection

2. Subsurface Introduction

1.2 Available online source

3. Cross correlation and green's function

2. Theory of ambient noise correlation

4. Modelling technique

2.1 cross correlation

3. Cross correlation and2.2 green's function

3. Subsurface structure correlation with velocity imaging

3.1 Explorationexample of subsurface structure

3.2 linkage of structure with velocity zone

3.2.1 low-velocity zone

3.2.2 high-velocity zone

Part 3: Application of Subsurface Mapping

1. Exploration of underground mines

1. Volcano Monitoring

2. LandslideVolcano Monitoring

13. VolcanoLandslide Monitoring

3. Exploration of subsurface structure