Interannual variability in tropospheric nitrous oxide
Observations of tropospheric N2O mixing ratio show significant variability on interannual timescales (0.2 ppb, 1 standard deviation). We found that interannual variability in N2O is weakly correlated with that in CFC-12 and SF6 for the northern extratropics and more strongly correlated for the south...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | en_US |
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American Geophysical Union
2014
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| Online Access: | http://hdl.handle.net/1721.1/85643 https://orcid.org/0000-0001-5925-3801 |
| _version_ | 1826203370430398464 |
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| author | Thompson, R. L. Dlugokencky, E. Chevallier, F. Ciais, P. Dutton, G. S. Elkins, J. W. Langenfelds, R. L. Prinn, Ronald G. Weiss, R. F. Tohjima, Y. O'Doherty, Simon Krummel, P. B. Fraser, P. J. Steele, L. P. |
| author2 | Massachusetts Institute of Technology. Center for Global Change Science |
| author_facet | Massachusetts Institute of Technology. Center for Global Change Science Thompson, R. L. Dlugokencky, E. Chevallier, F. Ciais, P. Dutton, G. S. Elkins, J. W. Langenfelds, R. L. Prinn, Ronald G. Weiss, R. F. Tohjima, Y. O'Doherty, Simon Krummel, P. B. Fraser, P. J. Steele, L. P. |
| author_sort | Thompson, R. L. |
| collection | MIT |
| description | Observations of tropospheric N2O mixing ratio show significant variability on interannual timescales (0.2 ppb, 1 standard deviation). We found that interannual variability in N2O is weakly correlated with that in CFC-12 and SF6 for the northern extratropics and more strongly correlated for the southern extratropics, suggesting that interannual variability in all these species is influenced by large-scale atmospheric circulation changes and, for SF6 in particular, interhemispheric transport. N2O interannual variability was not, however, correlated with polar lower stratospheric temperature, which is used as a proxy for stratosphere-to-troposphere transport in the extratropics. This suggests that stratosphere-to-troposphere transport is not a dominant factor in year-to-year variations in N2O growth rate. Instead, we found strong correlations of N2O interannual variability with the Multivariate ENSO Index. The climate variables, precipitation, soil moisture, and temperature were also found to be significantly correlated with N2O interannual variability, suggesting that climate-driven changes in soil N2O flux may be important for variations in N2O growth rate. |
| first_indexed | 2024-09-23T12:35:31Z |
| format | Article |
| id | mit-1721.1/85643 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T12:35:31Z |
| publishDate | 2014 |
| publisher | American Geophysical Union |
| record_format | dspace |
| spelling | mit-1721.1/856432022-10-01T09:56:49Z Interannual variability in tropospheric nitrous oxide Thompson, R. L. Dlugokencky, E. Chevallier, F. Ciais, P. Dutton, G. S. Elkins, J. W. Langenfelds, R. L. Prinn, Ronald G. Weiss, R. F. Tohjima, Y. O'Doherty, Simon Krummel, P. B. Fraser, P. J. Steele, L. P. Massachusetts Institute of Technology. Center for Global Change Science Prinn, Ronald G. Observations of tropospheric N2O mixing ratio show significant variability on interannual timescales (0.2 ppb, 1 standard deviation). We found that interannual variability in N2O is weakly correlated with that in CFC-12 and SF6 for the northern extratropics and more strongly correlated for the southern extratropics, suggesting that interannual variability in all these species is influenced by large-scale atmospheric circulation changes and, for SF6 in particular, interhemispheric transport. N2O interannual variability was not, however, correlated with polar lower stratospheric temperature, which is used as a proxy for stratosphere-to-troposphere transport in the extratropics. This suggests that stratosphere-to-troposphere transport is not a dominant factor in year-to-year variations in N2O growth rate. Instead, we found strong correlations of N2O interannual variability with the Multivariate ENSO Index. The climate variables, precipitation, soil moisture, and temperature were also found to be significantly correlated with N2O interannual variability, suggesting that climate-driven changes in soil N2O flux may be important for variations in N2O growth rate. European Research Council (EU Seventh Research Framework Programme (grant agreement 283576, MACC-II)) Research Council of Norway (contract 193774, SOGG-EA) 2014-03-14T18:08:53Z 2014-03-14T18:08:53Z 2013-08 2013-06 Article http://purl.org/eprint/type/JournalArticle 00948276 http://hdl.handle.net/1721.1/85643 Thompson, R. L., E. Dlugokencky, F. Chevallier, P. Ciais, G. Dutton, J. W. Elkins, R. L. Langenfelds, et al. “Interannual Variability in Tropospheric Nitrous Oxide.” Geophys. Res. Lett. 40, no. 16 (August 28, 2013): 4426–4431. https://orcid.org/0000-0001-5925-3801 en_US http://dx.doi.org/10.1002/grl.50721 Geophysical Research Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Geophysical Union Other univ. web domain |
| spellingShingle | Thompson, R. L. Dlugokencky, E. Chevallier, F. Ciais, P. Dutton, G. S. Elkins, J. W. Langenfelds, R. L. Prinn, Ronald G. Weiss, R. F. Tohjima, Y. O'Doherty, Simon Krummel, P. B. Fraser, P. J. Steele, L. P. Interannual variability in tropospheric nitrous oxide |
| title | Interannual variability in tropospheric nitrous oxide |
| title_full | Interannual variability in tropospheric nitrous oxide |
| title_fullStr | Interannual variability in tropospheric nitrous oxide |
| title_full_unstemmed | Interannual variability in tropospheric nitrous oxide |
| title_short | Interannual variability in tropospheric nitrous oxide |
| title_sort | interannual variability in tropospheric nitrous oxide |
| url | http://hdl.handle.net/1721.1/85643 https://orcid.org/0000-0001-5925-3801 |
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