气候变化领域集成服务门户(CCPortal): Interannual variability of terpenoid emissions in an alpine city

CCPortal

DOI	10.5194/acp-22-5603-2022
	Interannual variability of terpenoid emissions in an alpine city
	Kaser, Lisa; Peron, Arianna; Graus, Martin; Striednig, Marcus; Wohlfahrt, Georg; Juran, Stanislav; Karl, Thomas
发表日期	2022
ISSN	1680-7316
EISSN	1680-7324
起始页码	5603
结束页码	5618
卷号	22 期号:8 页码:16
英文摘要	Terpenoid emissions above urban areas are a complex mix of biogenic and anthropogenic emission sources. In line with previous studies we found that summertime terpenoid fluxes in an alpine city were dominated by biogenic sources. Inter-seasonal emission measurements revealed consistency for monoterpenes and sesquiterpenes but a large difference in isoprene between the summers of 2015 and 2018. Standardized emission potentials for monoterpenes and sesquiterpenes were 0.12 nmol m(-2) s(-1) and 3.0 x 10(-3) nmol m(-2) s(-1) in 2015 and 0.11 nmol m(-2) s(-1) and 3.4 x 10(-3) nmol m(-2) s(-1) in 2018, respectively. Observed isoprene fluxes were almost 3 times higher in 2018 than in 2015. This factor decreased to 2.3 after standardizing isoprene fluxes to 30 degrees C air temperature and photosynthetic active radiation (PAR) to 1000 mu mol m(-2) s(-1). Based on emission model parameterizations, increased leaf temperatures can explain some of these differences, but standardized isoprene emission potentials remained higher in 2018 when a heat wave persisted. These data suggest a higher variability of interannual isoprene fluxes than for other terpenes. Potential reasons for the observed differences such as emission parameterization, footprint changes, water stress conditions, and tree trimming are investigated.
学科领域	Environmental Sciences; Meteorology & Atmospheric Sciences
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000787846100001
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/273205
作者单位	University of Innsbruck; University of Innsbruck; Czech Academy of Sciences; Global Change Research Centre of the Czech Academy of Sciences
推荐引用方式 GB/T 7714	Kaser, Lisa,Peron, Arianna,Graus, Martin,et al. Interannual variability of terpenoid emissions in an alpine city[J],2022,22(8):16.
APA	Kaser, Lisa.,Peron, Arianna.,Graus, Martin.,Striednig, Marcus.,Wohlfahrt, Georg.,...&Karl, Thomas.(2022).Interannual variability of terpenoid emissions in an alpine city.ATMOSPHERIC CHEMISTRY AND PHYSICS,22(8),16.
MLA	Kaser, Lisa,et al."Interannual variability of terpenoid emissions in an alpine city".ATMOSPHERIC CHEMISTRY AND PHYSICS 22.8(2022):16.