气候变化领域集成服务门户(CCPortal): Arctic black carbon during PAMARCMiP 2018 and previous aircraft experiments in spring

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DOI	10.5194/acp-21-15861-2021
	Arctic black carbon during PAMARCMiP 2018 and previous aircraft experiments in spring
	Ohata S.; Koike M.; Yoshida A.; Moteki N.; Adachi K.; Oshima N.; Matsui H.; Eppers O.; Bozem H.; Zanatta M.; Herber A.B.
发表日期	2021
ISSN	1680-7316
起始页码	15861
结束页码	15881
卷号	21 期号:20
英文摘要	Vertical profiles of the mass concentration of black carbon (BC) were measured at altitudes up to 5 km during the PAMARCMiP (Polar Airborne Measurements and Arctic Regional Climate Model simulation Project) aircraft-based field experiment conducted around the northern Greenland Sea (Fram Strait) during March and April 2018 from operation base Station Nord (81.6'N, 16.7'W). Median BC mass concentrations in individual altitude ranges were 7-18 ng m-3 at standard temperature and pressure at altitudes below 4.5 km. These concentrations were systematically lower than previous observations in the Arctic in spring, conducted by ARCTAS-A in 2008 and NETCARE in 2015, and similar to those observed during HIPPO3 in 2010. Column amounts of BC for altitudes below 5 km in the Arctic (>66.5'N; COLBC), observed during the ARCTAS-A and NETCARE experiments, were higher by factors of 4.2 and 2.7, respectively, than those of the PAMARCMiP experiment. These differences could not be explained solely by the different locations of the experiments. The year-to-year variation of COLBC values generally corresponded to that of biomass burning activities in northern midlatitudes over western and eastern Eurasia. Furthermore, numerical model simulations estimated the year-to-year variation of contributions from anthropogenic sources to be smaller than 30 %-40 %. These results suggest that the year-to-year variation of biomass burning activities likely affected BC amounts in the Arctic troposphere in spring, at least in the years examined in this study. The year-to-year variations in BC mass concentrations were also observed at the surface at high Arctic sites Ny-Ålesund and Utqiävik (formerly known as Barrow, the location of Barrow Atmospheric Baseline Observatory), although their magnitudes were slightly lower than those in COLBC. Numerical model simulations in general successfully reproduced the observed COLBC values for PAMARCMiP and HIPPO3 (within a factor of 2), whereas they markedly underestimated the values for ARCTAS-A and NETCARE by factors of 3.7-5.8 and 3.3-5.0, respectively. Because anthropogenic contributions account for nearly all of the COLBC (82 %-98 %) in PAMARCMiP and HIPPO3, the good agreement between the observations and calculations for these two experiments suggests that anthropogenic contributions were generally well reproduced. However, the significant underestimations of COLBC for ARCTAS-A and NETCARE suggest that biomass burning contributions were underestimated. In this study, we also investigated plumes with enhanced BC mass concentrations, which were affected by biomass burning emissions, observed at 5 km altitude. Interestingly, the mass-averaged diameter of BC (core) and the shell-to-core diameter ratio of BC-containing particles in the plumes were generally not very different from those in other air samples, which were considered to be mostly aged anthropogenic BC. These observations provide a useful basis to evaluate numerical model simulations of the BC radiative effect in the Arctic region in spring. © 2021 The Author(s).
语种	英语
scopus关键词	airborne survey; altitude; biomass burning; black carbon; concentration (composition); midlatitude environment; spring (season); Arctic; Arctic Ocean; Fram Strait; Greenland Sea; Norwegian Sea
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/246460
作者单位	Institute for Space-Earth Environmental Research, Nagoya University, Aichi, Nagoya, Japan; Institute for Advanced Research, Nagoya University, Aichi, Nagoya, Japan; Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, Tokyo, Japan; National Institute of Polar Research, Tachikawa, Tokyo, Japan; Department of Atmosphere, Ocean, and Earth System Modeling Research, Meteorological Research Institute, Tsukuba, Japan; Graduate School of Environmental Studies, Nagoya University, Nagoya, Japan; Johannes Gutenberg University of Mainz, Institute for Atmospheric Physics, Mainz, Germany; Particle Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany; Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI), Bremerhaven, Germany; LISA, UMR CNRS 7583, Université Paris-Est-Créteil, IPSL, Créteil, France
推荐引用方式 GB/T 7714	Ohata S.,Koike M.,Yoshida A.,et al. Arctic black carbon during PAMARCMiP 2018 and previous aircraft experiments in spring[J],2021,21(20).
APA	Ohata S..,Koike M..,Yoshida A..,Moteki N..,Adachi K..,...&Herber A.B..(2021).Arctic black carbon during PAMARCMiP 2018 and previous aircraft experiments in spring.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(20).
MLA	Ohata S.,et al."Arctic black carbon during PAMARCMiP 2018 and previous aircraft experiments in spring".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.20(2021).