Vol.50-2-4 CONTENTS

Recent Volcanic Disaster Countermeasures Taken by GSI

Geographical Survey Institute
1. Volcanic Activities in Japan
2. Countermeasures against eruption of Mt. Usu
  2.1 Summary
  2.2 Countermeasures taken by GSI
  2.3 Crustal Deformation Monitoring
    2.3.1 Monitoring by GPS-based Control Station Networks
    2.3.2 Monitoring by GPS Volcanic Deformation Remote Monitoring System (REGMOS)
    2.3.3 Leveling
    2.3.4 Monitoring by SAR (Synthetic Aperture Radar) Image Matching
  2.4 Topographic Variation Survey
  2.5 Topographic Analysis
3. Countermeasures against eruption of Mt. Oyama in Miyake Island
  3.1 Summary
  3.2 Countermeasures taken by GSI
  3.3 Crustal Deformation Monitoring
    3.3.1 Monitoring by GPS-based Control Station Networks
    3.3.2 Monitoring by GPS Volcanic Deformation Remote Monitoring System (REGMOS)
    3.3.3 Leveling
  3.4 Topographic Variation Survey by Airborne SAR and Laser Scanner
  3.5 Topographic Analysis and GIS