A rapid deployment instrument network for temporarily monitoring volcanic SO2 emissions - a study case from Telica volcano
Artikel i vetenskaplig tidskrift, 2014

Volcanic gas emissions play a crucial role in describing geophysical processes; hence measurements of magmatic gases such as SO2 can be used as tracers prior and during volcanic crises. Different measurement techniques based on optical spectroscopy have provided valuable information when assessing volcanic crises. This paper describes the design and implementation of a network of spectroscopic instruments based on Differential Optical Absorption Spectroscopy (DOAS) for remote sensing of volcanic SO2 emissions, which is robust, portable and can be deployed in relative short time. The setup allows the processing of raw data in situ even in remote areas with limited accessibility, and delivers pre-processed data to end-users in near real time even during periods of volcanic crisis, via a satellite link. In addition, the hardware can be used to conduct short term studies of volcanic plumes in remotes areas. The network was tested at Telica, an active volcano located in western Nicaragua, producing what is so far the largest data set of continuous SO2 flux measurements at this volcano.

Författare

Alexander Vladimir Conde Jacobo

Chalmers, Rymd- och geovetenskap, Optisk fjärranalys

Daniel Nilsson

Chalmers, Rymd- och geovetenskap, Optisk fjärranalys

Bo Galle

Chalmers, Rymd- och geovetenskap, Optisk fjärranalys

R. Cartagena

A. Munoz

Geoscientific Instrumentation, Methods and Data Systems

2193-0856 (ISSN) 2193-0864 (eISSN)

Vol. 3 127-134

Ämneskategorier

Meteorologi och atmosfärforskning

DOI

10.5194/gi-3-127-2014