Aerial strategies advance volcanic gas measurements at inaccessible, strongly degassing volcanoes
Artikel i vetenskaplig tidskrift, 2020
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 ability to measure and monitor plumes remotely and to constrain global volatile fluxes from volcanoes. Combining multi-scale measurements from ground-based remote sensing, long-range aerial sampling, and satellites, we present comprehensive gas fluxes-3760 ± [600, 310] tons day-1 CO2 and 5150 ± [730, 340] tons day-1 SO2-for a strong yet previously uncharacterized volcanic emitter: Manam, Papua New Guinea. The CO2/ST ratio of 1.07 ± 0.06 suggests a modest slab sediment contribution to the sub-arc mantle. We find that aerial strategies reduce uncertainties associated with ground-based remote sensing of SO2 flux and enable near-real-time measurements of plume chemistry and carbon isotope composition. Our data emphasize the need to account for time averaging of temporal variability in volcanic gas emissions in global flux estimates.
Författare
E. J. Liu
University of Cambridge
University College London (UCL)
A. Aiuppa
Universita degli Studi di Palermo
A. Alan
Universidad de Costa Rica
Santiago Arellano
Chalmers, Rymd-, geo- och miljövetenskap, Mikrovågs- och optisk fjärranalys
Marcello Bitetto
Universita degli Studi di Palermo
N. Bobrowski
Max-Planck-Gesellschaft
Universität Heidelberg
Simon Carn
Michigan Technological University
R. Clarke
University of Bristol
E. Corrales
Universidad de Costa Rica
J. M. De Moor
Universidad Nacional de Costa Rica
J. A. Diaz
Universidad de Costa Rica
M. Edmonds
University of Cambridge
Tobias P. Fischer
University of New Mexico
J. Freer
University of Saskatchewan
University of Bristol
G. M. Fricke
University of New Mexico
Bo Galle
Chalmers, Rymd-, geo- och miljövetenskap, Mikrovågs- och optisk fjärranalys
G. Gerdes
Gerdes Solutions
G. Giudice
Istituto Nazionale di Geofisica e Vulcanologia
A. Gutmann
Johannes Gutenberg-Universität Mainz
C. Hayer
University of Manchester
I. Itikarai
Rabaul Volcano Observatory
J. Jones
University of New Mexico
E. Mason
University of Cambridge
B. T. McCormick Kilbride
University of Manchester
K. Mulina
Rabaul Volcano Observatory
S. Nowicki
University of New Mexico
K. Rahilly
University of New Mexico
T. Richardson
University of Bristol
J. Rüdiger
Johannes Gutenberg-Universität Mainz
C. I. Schipper
Victoria University
I. M. Watson
University of Bristol
K. Wood
University of Bristol
Science advances
2375-2548 (eISSN)
Vol. 6 44 abb9103Ämneskategorier
Meteorologi och atmosfärforskning
Naturgeografi
Miljövetenskap
DOI
10.1126/sciadv.abb9103
PubMed
33127674