Microbial metabolism directly affects trace gases in (sub) polar snowpacks
Concentrations of trace gases trapped in ice are considered to develop uniquely from direct snow/atmosphere interactions at the time of contact. This assumption relies upon limited or no biological, chemical or physical transformations occurring during transition from snow to firn to ice; a process...
Published in: | Journal of The Royal Society Interface |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
The Royal Society
2017
|
Subjects: | |
Online Access: | https://nrl.northumbria.ac.uk/id/eprint/33268/ https://doi.org/10.1098/rsif.2017.0729 https://nrl.northumbria.ac.uk/id/eprint/33268/1/20170729.full.pdf |
id |
ftunivnorthumb:oai:nrl.northumbria.ac.uk:33268 |
---|---|
record_format |
openpolar |
spelling |
ftunivnorthumb:oai:nrl.northumbria.ac.uk:33268 2023-05-15T13:56:54+02:00 Microbial metabolism directly affects trace gases in (sub) polar snowpacks Redeker, Kelly Chong, J. P. J. Aguion, A. Hodson, A. Pearce, David 2017-12-20 text https://nrl.northumbria.ac.uk/id/eprint/33268/ https://doi.org/10.1098/rsif.2017.0729 https://nrl.northumbria.ac.uk/id/eprint/33268/1/20170729.full.pdf en eng The Royal Society https://nrl.northumbria.ac.uk/id/eprint/33268/1/20170729.full.pdf Redeker, Kelly, Chong, J. P. J., Aguion, A., Hodson, A. and Pearce, David (2017) Microbial metabolism directly affects trace gases in (sub) polar snowpacks. Journal of The Royal Society Interface, 14 (137). p. 20170729. ISSN 1742-5689 cc_by_4_0 CC-BY F800 Physical and Terrestrial Geographical and Environmental Sciences Article PeerReviewed 2017 ftunivnorthumb https://doi.org/10.1098/rsif.2017.0729 2022-09-25T06:06:44Z Concentrations of trace gases trapped in ice are considered to develop uniquely from direct snow/atmosphere interactions at the time of contact. This assumption relies upon limited or no biological, chemical or physical transformations occurring during transition from snow to firn to ice; a process that can take decades to complete. Here, we present the first evidence of environmental alteration due to in situ microbial metabolism of trace gases (methyl halides and dimethyl sulfide) in polar snow. We collected evidence for ongoing microbial metabolism from an Arctic and an Antarctic location during different years. Methyl iodide production in the snowpack decreased significantly after exposure to enhanced UV radiation. Our results also show large variations in the production and consumption of other methyl halides, including methyl bromide and methyl chloride, used in climate interpretations. These results suggest that this long-neglected microbial activity could constitute a potential source of error in climate history interpretations, by introducing a so far unappreciated source of bias in the quantification of atmospheric-derived trace gases trapped within the polar ice caps. Article in Journal/Newspaper Antarc* Antarctic Arctic Northumbria University, Newcastle: Northumbria Research Link (NRL) Antarctic Arctic Journal of The Royal Society Interface 14 137 20170729 |
institution |
Open Polar |
collection |
Northumbria University, Newcastle: Northumbria Research Link (NRL) |
op_collection_id |
ftunivnorthumb |
language |
English |
topic |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
spellingShingle |
F800 Physical and Terrestrial Geographical and Environmental Sciences Redeker, Kelly Chong, J. P. J. Aguion, A. Hodson, A. Pearce, David Microbial metabolism directly affects trace gases in (sub) polar snowpacks |
topic_facet |
F800 Physical and Terrestrial Geographical and Environmental Sciences |
description |
Concentrations of trace gases trapped in ice are considered to develop uniquely from direct snow/atmosphere interactions at the time of contact. This assumption relies upon limited or no biological, chemical or physical transformations occurring during transition from snow to firn to ice; a process that can take decades to complete. Here, we present the first evidence of environmental alteration due to in situ microbial metabolism of trace gases (methyl halides and dimethyl sulfide) in polar snow. We collected evidence for ongoing microbial metabolism from an Arctic and an Antarctic location during different years. Methyl iodide production in the snowpack decreased significantly after exposure to enhanced UV radiation. Our results also show large variations in the production and consumption of other methyl halides, including methyl bromide and methyl chloride, used in climate interpretations. These results suggest that this long-neglected microbial activity could constitute a potential source of error in climate history interpretations, by introducing a so far unappreciated source of bias in the quantification of atmospheric-derived trace gases trapped within the polar ice caps. |
format |
Article in Journal/Newspaper |
author |
Redeker, Kelly Chong, J. P. J. Aguion, A. Hodson, A. Pearce, David |
author_facet |
Redeker, Kelly Chong, J. P. J. Aguion, A. Hodson, A. Pearce, David |
author_sort |
Redeker, Kelly |
title |
Microbial metabolism directly affects trace gases in (sub) polar snowpacks |
title_short |
Microbial metabolism directly affects trace gases in (sub) polar snowpacks |
title_full |
Microbial metabolism directly affects trace gases in (sub) polar snowpacks |
title_fullStr |
Microbial metabolism directly affects trace gases in (sub) polar snowpacks |
title_full_unstemmed |
Microbial metabolism directly affects trace gases in (sub) polar snowpacks |
title_sort |
microbial metabolism directly affects trace gases in (sub) polar snowpacks |
publisher |
The Royal Society |
publishDate |
2017 |
url |
https://nrl.northumbria.ac.uk/id/eprint/33268/ https://doi.org/10.1098/rsif.2017.0729 https://nrl.northumbria.ac.uk/id/eprint/33268/1/20170729.full.pdf |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Arctic |
genre_facet |
Antarc* Antarctic Arctic |
op_relation |
https://nrl.northumbria.ac.uk/id/eprint/33268/1/20170729.full.pdf Redeker, Kelly, Chong, J. P. J., Aguion, A., Hodson, A. and Pearce, David (2017) Microbial metabolism directly affects trace gases in (sub) polar snowpacks. Journal of The Royal Society Interface, 14 (137). p. 20170729. ISSN 1742-5689 |
op_rights |
cc_by_4_0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rsif.2017.0729 |
container_title |
Journal of The Royal Society Interface |
container_volume |
14 |
container_issue |
137 |
container_start_page |
20170729 |
_version_ |
1766264489762619392 |