气候变化领域集成服务门户(CCPortal): Millennial-Scale Changes in Terrestrial and Marine Nitrous Oxide Emissions at the Onset and Termination of Marine Isotope Stage 4

CCPortal

DOI	10.1029/2020GL089110
	Millennial-Scale Changes in Terrestrial and Marine Nitrous Oxide Emissions at the Onset and Termination of Marine Isotope Stage 4
	Menking J.A.; Brook E.J.; Schilt A.; Shackleton S.; Dyonisius M.; Severinghaus J.P.; Petrenko V.V.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:22
英文摘要	Ice core measurements of the concentration and stable isotopic composition of atmospheric nitrous oxide (N2O) 74,000–59,000 years ago constrain marine and terrestrial emissions. The data include two major Dansgaard-Oeschger (D-O) events and the N2O decrease during global cooling at the Marine Isotope Stage (MIS) 5a-4 transition. The N2O increase associated with D-O 19 (~73–71.5 ka) was driven by equal contributions from marine and terrestrial emissions. The N2O decrease during the transition into MIS 4 (~71.5–67.5 ka) was caused by gradual reductions of similar magnitude in both marine and terrestrial sources. A 50 ppb increase in N2O concentration at the end of MIS 4 was caused by gradual increases in marine and terrestrial emissions between ~64 and 61 ka, followed by an abrupt increase in marine emissions at the onset of D-O 16/17 (59.5 ka). This suggests that the importance of marine versus terrestrial emissions in controlling millennial-scale N2O fluctuations varied in time. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	Atmospheric chemistry; Nitrogen oxides; Atmospheric nitrous oxide; Global cooling; Ice core; Marine emissions; Marine isotope stages; Nitrous oxide emissions; Stable isotopic compositions; Isotopes; concentration (composition); cooling; Dansgaard-Oeschger cycle; emission inventory; isotopic composition; marine atmosphere; marine isotope stage; nitrous oxide
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169381
作者单位	College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR, United States; Department of Geosciences, Princeton University, Princeton, NJ, United States; Department of Earth and Environmental Sciences, University of Rochester, Rochester, NY, United States; Scripps Institution of Oceanography, La Jolla, CA, United States
推荐引用方式 GB/T 7714	Menking J.A.,Brook E.J.,Schilt A.,et al. Millennial-Scale Changes in Terrestrial and Marine Nitrous Oxide Emissions at the Onset and Termination of Marine Isotope Stage 4[J],2020,47(22).
APA	Menking J.A..,Brook E.J..,Schilt A..,Shackleton S..,Dyonisius M..,...&Petrenko V.V..(2020).Millennial-Scale Changes in Terrestrial and Marine Nitrous Oxide Emissions at the Onset and Termination of Marine Isotope Stage 4.Geophysical Research Letters,47(22).
MLA	Menking J.A.,et al."Millennial-Scale Changes in Terrestrial and Marine Nitrous Oxide Emissions at the Onset and Termination of Marine Isotope Stage 4".Geophysical Research Letters 47.22(2020).