Monitoring system for Krakatau
BANDUNG (JP): To develop a physical or mathematical model of a volcanic system, scientists rely on monitoring systems to continuously provide them integrated information.
Waluyo, a seismologist and volcanologist at the Physics Department of the School of Mathematics and Physics of the Gadjah Mada University, led geodynamic research in the Sunda Strait under the Integrated Special Research program. He speaks about some aspects of his research:
Q : How is your research conducted in the Sunda Strait?
A : We carry out this research in stages. The first stage is telemetry hardware consisting of a multi-canal data-recording system (data logger). This is important because the mountain is far away and difficult to reach. Long distance measuring that can be commanded from our base station in Carita is needed. We have installed a permanent calibrated sensor at Anak Rakata as well as in other locations which we deem right.
Q : What does the telemetry system measure?
A : The parameter measured is mainly seismic. Also, the temperature parameters that can be used to study the heat flow pattern. Our system can basically be divided into two main systems: the measuring system that is installed at the location of the sensor and the recording system at our base station in Carita. Both systems are connected with each other through radio communication. At present this equipment is able to measure and record 16 data in 10 seconds. The intervals of measurement can be set automatically through the base station.
Q : What is expected from the results of the research?
A : The earth research cannot promise something directly applicable. However, from the data obtained, the knowledge of a pattern or mechanism taking place in the center of the Earth can be used as a reference to predict the danger of geological threats. Thus, mitigation activities of disasters can be done. An important thing is that with the existence of natural laboratories like in Krakatau, Merapi or other locations in the country, we hope that Indonesia will take a prominent place in earth science. Applied earth science, such s looking for natural resources, is not the objective of our research at Krakatau. However, no less important is the opportunity for us to try out our discoveries on hard terrain like a volcano. If it passes the test on heavy terrain, such telemetry equipment can be used for other purposes. I think Indonesia is lucky to have many natural laboratories. In many western countries, they do not have similar natural laboratories, so they actively conduct earth research in Indonesia.