Uptake of reactive nitrogen on cirrus cloud particles during INCA
Uptake of reactive nitrogen on cirrus cloud particles during INCA
复制标题
INCA期间卷云颗粒对活性氮的吸收
DOI：
--
复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
J. Ström
中科院分区：
文献类型：
--
作者：
H. Ziereis;A. Minikin;H. Schlager;J. Gayet;F. Auriol;P. Stock;J. Baehr;A. Petzold;U. Schumann;A. Weinheimer;B. Ridley;J. Ström
通过同时基于飞机的测量气体和冷凝相NOy，冰颗粒尺寸分布和总气溶胶表面积，研究了卷云冰晶上活性氮物种的吸收。这些测量是在2000年印加气候研究所的活动期间在当地秋季在北方和南部中纬度地区进行的。在这些飞行中，在对流层上部经常遇到卷云冰粒。与卷云冰粒的出现同时，还观测到了NOy微粒。结果发现，卷云冰粒与颗粒NOy的覆盖率强烈依赖于温度和气相NOy浓度。只有当温度低于217 K时，才观察到冰粒的覆盖率大于单层的1%。平均而言，只有约1%的可用气相NOy被发现为颗粒NOy。
The uptake of reactive nitrogen species on ice crystals in cirrus clouds was investigated by simultaneous aircraft‐based measurements of gas‐ and condensed‐phase NOy, ice particle size distribution and total aerosol surface area. The measurements were performed in 2000 during the INCA campaign at northern and southern midlatitudes at local autumn. Cirrus ice particles were frequently encountered during these flights in the upper troposphere. Concurrently with the occurrence of cirrus ice particles particulate NOy was observed. It was found that the coverage of the cirrus ice particles with particulate NOy strongly depends on the temperature and the gas‐phase NOy concentration. A substantial coverage of the ice particles with values larger than one percent of a monolayer was observed only for temperatures below about 217 K. On average only about one percent of the available gas‐phase NOy was found as particulate NOy.