The mission of the Centre for Geohazard Observations is to install, maintain, and manage the EOS’s geohazard observation networks in and around Southeast Asia. It aims to achieve high serviceability of the networks to consistently record quality data necessary to the fundamental research conducted by the Observatory.
Supporting Scientific Research
The Centre for Geohazard Observations (CGO) installs, maintains, and manages the Earth Observatory of Singapore’s (EOS) geophysical and other field instrumentation stations and networks spread over several countries in and around Southeast Asia. The CGO also conducts geophysical surveys in aid of research, providing support in various technical matters that include the acquisition, computing, and archiving of geophysical data. The Centre strives to provide an innovative and conducive technological environment for our scientists both in the field and in the laboratory.
In providing effective technical and research support to the Observatory, CGO works closely with the Observatory researchers. Scientific requirements as well as technical and operational constrains are fully considered in all implementation and maintenance plans. CGO also works closely with our Southeast Asia collaborators, aiming to strengthen and expand the relationship to advance the regional geohazard research community.
The Centre is involved in:
The two major continuous Global Positioning System (cGPS) networks in South and Southeast Asia that the CGO maintains are the Sumatran GPS Array (SuGAR) and the Myanmar-India-Bangladesh-Bhutan (MIBB) GPS array. The information collected from these networks can potentially improve tsunami warning systems after a major earthquake event.
Seismic networks monitor earthquakes and volcanic activities in real time and are linked to the cGPS stations. The CGO works closely with other research institutes to operate these networks. Our collaborators include the Philippine Institute of Volcanology and Seismology (PHIVOLCS) and Center of Volcanology and Geological Hazard Mitigation (CVGHM). The Observatory provides important information about current tectonic and volcanic activities, and work with our international collaborators to understand earthquakes and volcanic activity that occur in the region.
Terrestrial LiDAR is a ground-based laser scanning technique that provides real topography in ultra-high resolution for areas spanning up to several kilometres. The CGO has also carried out airborne-LiDAR surveys in Nepal and Myanmar. This technique is ideal for regional high-resolution surveys.
Ground-penetrating Radar (GPR) is a technique that uses high-frequency radio waves to image the subsurface of the Earth. This technique is often used by our scientists to study sediment deposits related to coastal hazards in Southeast Asia.
The infrasound monitoring system employed by EOS was first used to monitor volcanic eruptions from Indonesia. This monitoring system detects low-frequency sound waves, and the data collected will provide information on the location and explosivity of the eruption, allowing our scientists to determine the impact of volcanic ash on air traffic in and around Singapore.
Small Unmanned Aerial Vehicle (UAV) surveys provide detailed information of temporal landscape changes, post-disaster landscape, and potentially high-resolution digital terrain models acquired from aerial photos taken from the drone. Our scientists use a combination of techniques, including images taken from the UAV, to investigate faults and volcanic activities.