The Technical Concept of Differential Optical Absorption Spectroscopy for SO2 Gas Spectrum Monitoring on Volcanic Ash of Gunung Anak Krakatau volcano
Authors
Ardian Ulvan, Muhamad Rifky Maulana, Mona Arif Muda Batubara, Nora Aditiyan, Melvi
Corresponding Author
Melvi
Available Online 4 June 2021.
- DOI
- https://doi.org/10.2991/aer.k.210603.023How to use a DOI?
- Keywords
- Krakatau, Krakatoa, DOAS, volcanic ash, SO2, early warning system
- Abstract
- Gunung Anak Krakatau is one of the active volcanoes in Indonesia. In October – December 2018, it erupted 156 times by releasing incandescent materials and toxic gases in the form of sulphur dioxide (SO2), carbon dioxide (CO2), and hydrogen sulphide (H2S) at 2 km radius. The release of SO2 gas indicates that magma is approaching the surface and puts the volcano on alert status. Finally on 22 December 2018 the continued eruption caused the flank collapse on some part of the volcano, triggered a tsunami that stroke the coastal of Lampung and Banten. This work investigated the SO2 gas monitoring technology using Differential Optical Absorption Spectroscopy (DOAS). The study specifically concerns on the working principles of DOAS, optimization of DOAS with optical bandpass filters and amplifiers, as well as the implementation architecture design of DOAS from Gunung Anak Krakatau Volcano to Hargo Pancuran Monitoring Station. Based on this study, the DOAS can be used to monitor SO2 gas by using a catadioptric telescope and the optimization works for UG11 as an optical bandpass filter and Raman Amplifier as the amplifier.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Ardian Ulvan AU - Muhamad Rifky Maulana AU - Mona Arif Muda Batubara AU - Nora Aditiyan AU - Melvi PY - 2021 DA - 2021/06/04 TI - The Technical Concept of Differential Optical Absorption Spectroscopy for SO₂ Gas Spectrum Monitoring on Volcanic Ash of Gunung Anak Krakatau volcano BT - Proceedings of the International Conference on Sustainable Biomass (ICSB 2019) PB - Atlantis Press SP - 137 EP - 143 SN - 2352-5401 UR - https://doi.org/10.2991/aer.k.210603.023 DO - https://doi.org/10.2991/aer.k.210603.023 ID - Ulvan2021 ER -