TY  - JOUR
AU  - Kracher, Daniela
AU  - Reick, Christian H.
AU  - Manzini, Elisa
AU  - Schultz, Martin
AU  - Stein, Olaf
TI  - Climate change reduces warming potential of nitrous oxide by an enhanced Brewer-Dobson circulation
JO  - Geophysical research letters
VL  - 43
IS  - 11
SN  - 0094-8276
CY  - Hoboken, NJ
PB  - Wiley
M1  - FZJ-2016-03522
SP  - 5851 - 5859
PY  - 2016
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000379851800037
DO  - DOI:10.1002/2016GL068390
UR  - https://juser.fz-juelich.de/record/810967
ER  -