Very large fluxes of methane measured above Bolivian seasonal wetlands

James L. France, Mark F. Lunt, Marcos Andrade, Isabel Moreno, Anita L. Ganesan, Thomas Lachlan-Cope, Rebecca E. Fisher, David Lowry, Robert J. Parker, Euan G. Nisbet, Anna E. Jones

Research output: Contribution to journalArticlepeer-review

Abstract

Methane (CH4) mole fractions from the large semiseasonal Llanos de Moxos wetlands (∼70,000 km2) in northern Bolivia were measured by aircraft flights and ground sampling during early March 2019 (late wet season). Daily fluxes of CH4 determined from the measurements using box models and inverse modeling were between 168 (± 50) and 456 (± 145) mg CH4 m-2 d-1 for the areas overflown, very high compared with those of previous Amazon basin studies. If the seasonality of the CH4 emissions is comparable to other parts of the Amazon Basin, the region could contribute as much as 8% of annual Amazonian CH4 emissions.

Original languageEnglish
Article numbere2206345119
JournalProceedings of the National Academy of Sciences of the United States of America
Volume119
Issue number32
DOIs
StatePublished - 9 Aug 2022

Bibliographical note

Funding Information:
ACKNOWLEDGMENTS. This work was part of Methane Observations and Yearly Assessments, the United Kingdom’s global methane budget study. The Natural Environment Research Council supported this work through grants to E.G.N. (NE/ N016238/1 and NE/S00159X/1), A.E.J. (NE/N015584/1 and NE/N015916/1), R.E.F. (NE/V000780/1), and R.J.P. (NE/N018079/1), and through Fellowship NE/L010992/1 to A.L.G. This research used the Advanced Leicester Information and Computational Environment at the University of Leicester for the GOSAT retrievals. We thank the Japanese Aerospace Exploration Agency, National Institute for Environmental Studies, and the Ministry of Environment for the GOSAT data. We acknowledge very helpful discussions with John Miller, Luciana Gatti, and Emanuel Gloor. We especially thank Ambassador Ross Denny and the UK Foreign, Commonwealth & Development Office. We are very grateful to the pilots, Mark Beasley and Andy van Kints, and Dan Beeden for logistics.

Publisher Copyright:
© 2022 the Author(s).

Keywords

  • climate
  • greenhouse gases
  • methane
  • wetlands

Fingerprint

Dive into the research topics of 'Very large fluxes of methane measured above Bolivian seasonal wetlands'. Together they form a unique fingerprint.

Cite this