Synoptic Analysis of a Decade of Daily Measurements of SO2 Emission in the Troposphere from Volcanoes of the Global Ground-Based Network for Observation of …

S Arellano, B Galle, F Apaza, G Avard… - Earth System …, 2020 - essd.copernicus.org
Volcanic plumes are common and far-reaching manifestations of volcanic activity during and
between eruptions. Observations of the rate of emission and composition of volcanic plumes …

Aerial strategies advance volcanic gas measurements at inaccessible, strongly degassing volcanoes

EJ Liu, A Aiuppa, A Alan, S Arellano, M Bitetto… - Science …, 2020 - science.org
Volcanic emissions are a critical pathway in Earth's carbon cycle. Here, we show that aerial
measurements of volcanic gases using unoccupied aerial systems (UAS) transform our …

Diffusion height and order of sulfur dioxide and bromine monoxide plumes from the Hunga Tonga–Hunga Ha'apai volcanic eruption

Q Li, Y Qian, Y Luo, L Cao, H Zhou, T Yang, F Si… - Remote Sensing, 2023 - mdpi.com
A violent volcanic eruption attracting considerable attention occurred on 15 January 2022
near the South Pacific island nation of Tonga. To investigate its environmental impact, we …

Quantifying BrO and SO2 distributions in volcanic plumes—Recent advances in imaging Fabry-Pérot interferometer correlation spectroscopy

A Nies, J Heimann, C Fuchs, J Kuhn… - Frontiers in Earth …, 2023 - frontiersin.org
Bromine monoxide (BrO) and sulphur dioxide (SO2) are two gases frequently observed in
volcanic plumes by spectroscopic techniques capable of continuous gas monitoring like, eg …

Long-range transport and microscopy analysis of Sangay volcanic ashes in Ecuador

D Moran-Zuloaga, W Merchan-Merchan… - Air Quality, Atmosphere …, 2024 - Springer
This study aims to conduct a spatiotemporal analysis of the long-range transportation of
volcanic ashes that originates from the eruption of the Sangay volcano and reached …

[HTML][HTML] Observation and modelling of ozone-destructive halogen chemistry in a passively degassing volcanic plume

L Surl, T Roberts, S Bekki - Atmospheric Chemistry and Physics, 2021 - acp.copernicus.org
Volcanoes emit halogens into the atmosphere that undergo complex chemical cycling in
plumes and cause destruction of ozone. We present a case study of the Mount Etna plume in …

[HTML][HTML] A new accurate retrieval algorithm of bromine monoxide columns inside minor volcanic plumes from Sentinel-5P TROPOMI observations

S Warnach, H Sihler, C Borger… - Atmospheric …, 2023 - amt.copernicus.org
Bromine monoxide (BrO) is a key radical in the atmosphere, influencing the chemical state of
the atmosphere, most notably the abundance of ozone (O 3). O 3 depletion caused by the …

[HTML][HTML] Halogen activation in the plume of Masaya volcano: field observations and box model investigations

J Rüdiger, A Gutmann, N Bobrowski… - Atmospheric …, 2021 - acp.copernicus.org
Volcanic emissions are a source of halogens in the atmosphere. Rapid reactions convert the
initially emitted hydrogen halides (HCl, HBr, and HI) into reactive species such as BrO, Br 2 …

Using Wavelet Coherence to Aid the Retrieval of Volcanic SO2 from UV Spectra

C Barrington, B Taisne, F Costa - Remote Sensing, 2023 - mdpi.com
Changes in the emission rate of volcanic sulphur dioxide (SO 2) are crucial parameters for
identifying volcanic unrest and forecasting the eruptive activity. Ground-based ultraviolet …

[HTML][HTML] High-spectral-resolution Fabry-Pérot interferometers overcome fundamental limitations of present volcanic gas remote sensing techniques

J Kuhn, N Bobrowski, G Boudoire… - Frontiers in Earth …, 2023 - frontiersin.org
Remote sensing (RS) of volcanic gases has become a central tool for studying volcanic
activity. For instance, ultraviolet (UV) skylight spectroscopy with grating spectrographs (GS) …