Chemical and microphysical properties of natural cirrus and contrail cirrus

天然卷云和逆卷云的化学和微物理特性

• 批准号: 111635694
• 负责人: Professor Dr. Stephan Borrmann
• 金额: --
• 依托单位: Institut für Physik der Atmosphäre
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/111635694?language=en
• 关键词: Chemical; microphysical; properties; natural; cirrus

Cirrus clouds influence the earth´s climate directly through trapping of terrestrial and reflection of solar radiation – and indirectly through heterogeneous processing of trace gases modifying ozone concentrations in the tropopause region. Controversial results of recent field, modeling and laboratory studies have promoted an active debate on trace gas uptake in ice crystals in its consequences for global climate. Open questions remain e.g. the dependence of the nitric acid uptake in ice crystals on HNO3 partial pressure, denitrification and chlorine activation by cirrus clouds. Hence we will develop a chemical ionization quadrupole mass spectrometer for the high altitude long range aircraft HALO to detect HNO3 and HCl concentrations in the tropopause region. Particle shattering on the inlets of airborne instruments questioned the quality of previous microphysical cirrus and contrail data sets. To surmount these problems, we will implement a new cloud combination probe (CCP) on the HALO to observe cirrus ice crystals in the size range between 3 and 1550 μm. The detection of the particle interarrival times will allow for the correction of shattering effects. Hence the CCP will provide new data on microphysical particle properties, which help to better quantify the radiative impact of cirrus and contrail cirrus. The chemical ionization mass spectrometer will be deployed within the HALO demo missions TACTS, ML-CIRRUS and POLSTRACC and the CCP will be integrated in the ML-CIRRUS and the POLSTRACC mission.

卷云通过捕获陆地辐射和反射太阳辐射直接影响地球气候，并通过改变对流层顶区域臭氧浓度的痕量气体的非均匀处理间接影响地球气候。最近的现场，模拟和实验室研究的有争议的结果，促进了对冰晶中微量气体的吸收在其对全球气候的影响的积极辩论。悬而未决的问题仍然存在，例如，冰晶中硝酸吸收对HNO 3分压、脱氮和卷云氯活化的依赖性。因此，我们将研制一台用于高空远程飞机HALO的化学电离四极质谱仪，用于探测对流层顶HNO 3和HCl浓度。机载仪器入口处的粒子破碎对以前微物理卷云和轨迹数据集的质量提出了质疑。为了克服这些问题，我们将在HALO上安装一个新的云组合探测器（CCP），以观测3 - 1550 μm范围内的卷云冰晶。粒子到达间隔时间的检测将允许对破碎效果进行校正。因此，CCP将提供关于微物理粒子特性的新数据，这有助于更好地量化卷云和尾迹卷云的辐射影响。化学电离质谱仪将部署在HALO演示飞行任务TALO、ML-CIRRUS和POLSTRACC中，CCP将纳入ML-CIRRUS和POLSTRACC使命。

项目成果

Effective Radius of Ice Particles in Cirrus and Contrails

卷云和凝结尾迹中冰粒的有效半径

• DOI: 10.1175/2010jas3562.1
• 发表时间: 2011
• 期刊: Journal of the Atmospheric Sciences
• 影响因子: 3.1
• 作者: Schumann;Gierens;Unterstrasser;Jessberger;Petzold
• 通讯作者: Petzold

Detection and Analysis of Water Vapor Transport

水蒸气传输的检测与分析

• DOI: 10.1007/978-3-642-30183-4_11
• 作者: Kiemle;C. A. Schäfller;C. Voigt
• 通讯作者: C. Voigt

In-situ observations of young contrails - overview and selected results from the CONCERT campaign

年轻尾迹的现场观测——音乐会活动的概述和选定结果

• DOI: 10.5194/acp-10-9039-2010
• 发表时间: 2010
• 期刊: Atmospheric Chemistry and Physics
• 影响因子: 6.3
• 作者: U. Schumann;T. Jurkat;D. Schäuble;H. Schlager;A. Petzold;J.- F. Gayet;M. Krämer;J. Schneider;S. Borrmann;J. Schmale;P. Jessberger;T. Hamburger;M. Lichtenstern;M. Scheibe;C. Gourbeyre;J. Meyer;M. Kübbeler;W. Frey;H. Kalesse
• 通讯作者: H. Kalesse

Extinction and optical depth of contrails

消光与光学深度的矛盾

• DOI: 10.1029/2011gl047189
• 发表时间: 2011
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: U. Schumann;P. Jessberger;T. Jurkat;A. Petzold;J.-F- Gayet;M. Krämer;T. Thornberry;D. Fahey
• 通讯作者: D. Fahey

In situ measurements of tropical cloud properties in the West African Monsoon: upper tropospheric ice clouds, Mesoscale Convective System outflow, and subvisual cirrus

西非季风热带云特性的现场测量：对流层上层冰云、中尺度对流系统外流和亚目视卷云

• DOI: 10.5194/acp-11-5569-2011
• 发表时间: 2011
• 期刊: Atmospheric Chemistry and Physics
• 影响因子: 6.3
• 作者: Borrmann;Kunkel;Weigel;de Reus;Schlager;Roiger;Curtius;Krämer;Schiller;Fierli;Di Donfrancesco;Ulanovsky;Ravegnani;Sitnikov
• 通讯作者: Sitnikov