气候变化领域集成服务门户(CCPortal): In situ observation of new particle formation (NPF) in the tropical tropopause layer of the 2017 Asian monsoon anticyclone

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DOI	10.5194/acp-21-11689-2021
	In situ observation of new particle formation (NPF) in the tropical tropopause layer of the 2017 Asian monsoon anticyclone - Part 1: Summary of StratoClim results
	Weigel R.; Mahnke C.; Baumgartner M.; Dragoneas A.; Vogel B.; Ploeger F.; Viciani S.; D'Amato F.; Bucci S.; Legras B.; Luo B.; Borrmann S.
发表日期	2021
ISSN	1680-7316
起始页码	11689
结束页码	11722
卷号	21 期号:15
英文摘要	During the monsoon season of the year 2017 the airborne StratoClim mission took place in Kathmandu, Nepal, with eight mission flights of the M-55 Geophysica in the upper troposphere-lower stratosphere (UTLS) of the Asian monsoon anticyclone (AMA) over northern India, Nepal, and Bangladesh. More than 100 events of new particle formation (NPF) were observed. In total, more than 2g h of flight time was spent under NPF conditions as indicated by the abundant presence of nucleation-mode aerosols, i.e. with particle diameters dp smaller than 15g nm, which were detected in situ by means of condensation nuclei counting techniques. Mixing ratios of nucleation-mode particles (nnm) of up to g1/4g 50g 000g mg-1 were measured at heights of 15-16g km (θg ≈g 370g K). NPF was most frequently observed at g1/4g 12-16g km altitude (θg ≈g 355-380g K) and mainly below the tropopause. Resulting nnm remained elevated (g1/4g 300-2000g mg-1) up to altitudes of g1/4g 17.5g km (θg ≈g 400g K), while under NPF conditions the fraction (f) of sub-micrometre-sized non-volatile residues (dpg >g 10g nm) remained below 50g %. At g1/4g 12-14g km (θg ≈g 355-365g K) the minimum of f (
语种	英语
scopus关键词	aerosol; aerosol formation; anticyclone; coagulation; convection; in situ measurement; mixing ratio; monsoon; nucleation; tropopause; Bangladesh; India; Nepal
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/246675
作者单位	Institut für Physik der Atmosphäre, Johannes Gutenberg University Mainz, Mainz, Germany; Abteilung Partikelchemie, Max-Planck-Institut für Chemie, Mainz, Germany; Zentrum für Datenverarbeitung, Johannes Gutenberg University Mainz, Mainz, Germany; Institute of Energy and Climate Research (IEK-7), Forschungszentrum Jülich, Jülich, Germany; National Institute of Optics, National Research Council (CNR-INO), Florence, Italy; Laboratoire de Météorologie Dynamique, UMR 8539, CNRS - École Normale Spérieure, Université Pierre et Marie Curie, École Polytechnique, Paris, France; Institute for Atmospheric Science, Swiss Federal Institute of Technology, ETH Zurich, Switzerland; Institute of Energy and Climate Research (IEK-8), Forschungszentrum Jülich, Jülich, Germany
推荐引用方式 GB/T 7714	Weigel R.,Mahnke C.,Baumgartner M.,et al. In situ observation of new particle formation (NPF) in the tropical tropopause layer of the 2017 Asian monsoon anticyclone - Part 1: Summary of StratoClim results[J],2021,21(15).
APA	Weigel R..,Mahnke C..,Baumgartner M..,Dragoneas A..,Vogel B..,...&Borrmann S..(2021).In situ observation of new particle formation (NPF) in the tropical tropopause layer of the 2017 Asian monsoon anticyclone - Part 1: Summary of StratoClim results.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(15).
MLA	Weigel R.,et al."In situ observation of new particle formation (NPF) in the tropical tropopause layer of the 2017 Asian monsoon anticyclone - Part 1: Summary of StratoClim results".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.15(2021).