Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL084145 |
Vortex-Wide Detection of Large Aspherical NAT Particles in the Arctic Winter 2011/12 Stratosphere | |
Woiwode, W.1; Hoepfner, M.1; Bi, L.2; Khosrawi, F.1; Santee, M. L.3 | |
2019-11-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:22页码:13420-13429 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; Peoples R China; USA |
英文摘要 | Micron-sized HNO3-containing particles in polar stratospheric clouds are known to denitrify the polar winter stratosphere and support chemical ozone loss. We show that populations of nitric acid trihydrate (NAT) particles with volume-equivalent median radii of 3-7 mu m can be detected vortex-wide by means of infrared limb sounding. Key for detection are the applied optical characteristics of highly aspherical particles consisting of the beta-NAT phase. Spectroscopic signatures and ambient conditions of detected populations show that these particles play a key role in denitrification of the Arctic winter stratosphere. Complementary gas-phase HNO3 observations indicate collocated highly efficient HNO3 sequestration within days and are consistent with measured spectral signals of populations of large NAT particles. High amounts of condensed gas-phase equivalent HNO3 exceeding 10 ppbv and long persistence of detected populations, despite expected gravitational settling, imply that our understanding of the particles is incomplete. |
英文关键词 | polar winter stratosphere denitrification nitric acid trihydrate infrared limb sounding |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000496647700001 |
WOS关键词 | NITRIC-ACID TRIHYDRATE ; LARGE HNO3-CONTAINING PARTICLES ; OZONE LOSS ; HETEROGENEOUS FORMATION ; SPECTROSCOPIC EVIDENCE ; VAPOR-PRESSURES ; POLAR ; DENITRIFICATION ; ICE ; CLOUDS |
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/225040 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Karlsruhe Inst Technol, Inst Meteorol & Climate Res Atmospher Trace Gases, Karlsruhe, Germany; 2.Zhejiang Univ, Sch Earth Sci, Hangzhou, Zhejiang, Peoples R China; 3.CALTECH, Jet Prop Lab, Pasadena, CA USA |
推荐引用方式 GB/T 7714 | Woiwode, W.,Hoepfner, M.,Bi, L.,et al. Vortex-Wide Detection of Large Aspherical NAT Particles in the Arctic Winter 2011/12 Stratosphere[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(22):13420-13429. |
APA | Woiwode, W.,Hoepfner, M.,Bi, L.,Khosrawi, F.,&Santee, M. L..(2019).Vortex-Wide Detection of Large Aspherical NAT Particles in the Arctic Winter 2011/12 Stratosphere.GEOPHYSICAL RESEARCH LETTERS,46(22),13420-13429. |
MLA | Woiwode, W.,et al."Vortex-Wide Detection of Large Aspherical NAT Particles in the Arctic Winter 2011/12 Stratosphere".GEOPHYSICAL RESEARCH LETTERS 46.22(2019):13420-13429. |
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