This title appears in the Scientific Report :
2016
Please use the identifier:
http://dx.doi.org/10.1002/2016GL068390 in citations.
Please use the identifier: http://hdl.handle.net/2128/16071 in citations.
Climate change reduces warming potential of nitrous oxide by an enhanced Brewer-Dobson circulation
Climate change reduces warming potential of nitrous oxide by an enhanced Brewer-Dobson circulation
The Brewer-Dobson circulation (BDC), which is an important driver of the stratosphere-troposphere exchange, is expected to accelerate with climate change. One particular consequence of this acceleration is the enhanced transport of nitrous oxide (N2O) from its sources at the Earth's surface tow...
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Personal Name(s): | Kracher, Daniela (Corresponding author) |
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Reick, Christian H. / Manzini, Elisa / Schultz, Martin / Stein, Olaf | |
Contributing Institute: |
Jülich Supercomputing Center; JSC Troposphäre; IEK-8 |
Published in: | Geophysical research letters, 43 (2016) 11, S. 5851 - 5859 |
Imprint: |
Hoboken, NJ
Wiley
2016
|
DOI: |
10.1002/2016GL068390 |
Document Type: |
Journal Article |
Research Program: |
Computational Science and Mathematical Methods Tropospheric trace substances and their transformation processes |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/16071 in citations.
The Brewer-Dobson circulation (BDC), which is an important driver of the stratosphere-troposphere exchange, is expected to accelerate with climate change. One particular consequence of this acceleration is the enhanced transport of nitrous oxide (N2O) from its sources at the Earth's surface toward its main sink region in the stratosphere, thus inducing a reduction in its lifetime. N2O is a potent greenhouse gas and the most relevant currently emitted ozone-depleting substance. Here we examine the implications of a reduced N2O lifetime in the context of climate change. We find a decrease in its global warming potential (GWP) and, due to a decline in the atmospheric N2O burden, also a reduction in its total radiative forcing. From the idealized transient global warming simulation we can identify linear regressions for N2O sink, lifetime, and GWP with temperature rise. Our findings are thus not restricted to a particular scenario. |