Atmospheric Kr-81 as an Integrator of Cosmic-Ray Flux on the Hundred-Thousand-Year Time Scale

doi:10.1029/2019GL086381

GSTDTAP > 气候变化

DOI	10.1029/2019GL086381
	Atmospheric Kr-81 as an Integrator of Cosmic-Ray Flux on the Hundred-Thousand-Year Time Scale
	Zappala, J. C.1; Baggenstos, D.2,3; Gerber, C.2,3,4; Jiang, W.1,5; Kennedy, B. M.6; Lu, Z-T 1,5; Masarik, J.7; Mueller, P.1; Purtschert, R.2,3; Visser, A.8
	2020-02-16
发表期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2020
卷号	47 期号:3
文章类型	Article
语种	英语
国家	USA; Switzerland; Australia; Peoples R China; Slovakia
英文摘要	The atmospheric abundance of Kr-81 is a global integrator of cosmic rays. It is insensitive to climate shifts, geographical variations, and short-term solar cycle activity, making it an ideal standard to test models of cosmic-ray flux on the time scale of 105 years. Here we present the first calculation of absolute Kr-81 production rates in the atmosphere, and a measurement of the atmospheric Kr-81/Kr abundance via the Atom Trap Trace Analysis method. The measurement result significantly deviates from previously reported values. The agreement between measurement and model prediction supports the current understanding of the production mechanisms. Additionally, the calculated Kr-81 atmospheric inventory over the past 1.5 Myr provides a more accurate input function for radiokrypton dating.
领域	气候变化
收录类别	SCI-E
WOS记录号	WOS:000529107400047
WOS关键词	COSMOGENIC-NUCLIDE PRODUCTION ; GEOMAGNETIC-FIELD INTENSITY ; ICE CORE ; SOLAR MODULATION ; PRODUCTION-RATES ; TRACE ; RADIONUCLIDES ; VARIABILITY ; ISOTOPE ; NUCLEAR
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/279639
专题	气候变化
作者单位	1.Argonne Natl Lab, Phys Div, Lemont, IL 60439 USA; 2.Univ Bern, Phys Inst, Climate & Environm Phys, Bern, Switzerland; 3.Univ Bern, Oeschger Ctr Climate Change Res, Bern, Switzerland; 4.CSIRO Land & Water, Glen Osmond, SA, Australia; 5.Univ Sci & Technol China, CAS Ctr Excellence Quantum Informat & Quantum Phy, Hefei Natl Lab Phys Sci Microscale, Hefei, Peoples R China; 6.Lawrence Berkeley Natl Lab, Earth Sci Div, Berkeley, CA USA; 7.Comenius Univ, Dept Nucl Phys, Bratislava, Slovakia; 8.Lawrence Livermore Natl Lab, Nucl & Chem Sci Div, Livermore, CA 94550 USA
推荐引用方式 GB/T 7714	Zappala, J. C.,Baggenstos, D.,Gerber, C.,et al. Atmospheric Kr-81 as an Integrator of Cosmic-Ray Flux on the Hundred-Thousand-Year Time Scale[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(3).
APA	Zappala, J. C..,Baggenstos, D..,Gerber, C..,Jiang, W..,Kennedy, B. M..,...&Visser, A..(2020).Atmospheric Kr-81 as an Integrator of Cosmic-Ray Flux on the Hundred-Thousand-Year Time Scale.GEOPHYSICAL RESEARCH LETTERS,47(3).
MLA	Zappala, J. C.,et al."Atmospheric Kr-81 as an Integrator of Cosmic-Ray Flux on the Hundred-Thousand-Year Time Scale".GEOPHYSICAL RESEARCH LETTERS 47.3(2020).