Nucleation of nitric acid hydrates in polar stratospheric clouds by meteoric material
Nucleation of nitric acid hydrates in polar stratospheric clouds by meteoric material
复制标题
流星物质对极地平流层云中硝酸水合物的成核作用
DOI：
10.5194/acp-18-4519-2018
复制
发表时间：
2017
影响因子：
6.3
通讯作者：
B. Murray
中科院分区：
文献类型：
--
作者：
A. James;J. Brooke;T. Mangan;T. Whale;J. Plane;B. Murray
摘要。结晶硝酸水合物的非均相成核
Abstract. Heterogeneous nucleation of crystalline nitric acid hydrates in
polar stratospheric clouds (PSCs) enhances ozone depletion. However, the
identity and mode of action of the particles responsible for nucleation
remains unknown. It has been suggested that meteoric material may trigger
nucleation of nitric acid trihydrate (NAT, or other nitric acid phases), but
this has never been quantitatively demonstrated in the laboratory. Meteoric
material is present in two forms in the stratosphere: smoke that results
from the ablation and re-condensation of vapours, and fragments that result
from the break-up of meteoroids entering the atmosphere. Here we show that
analogues of both materials have a capacity to nucleate nitric acid hydrates.
In combination with estimates from a global model of the amount of meteoric
smoke and fragments in the polar stratosphere we show that meteoric material
probably accounts for NAT observations in early season polar stratospheric
clouds in the absence of water ice.
使用 70 至 150 公里高度之间的 SCIAMACHY/Envisat 观测和 WACCM-Mg 模型结果对 Mg 原子和离子层进行全球调查
影响因子：
6.3
作者：
Langowski M
通讯作者：
Langowski M
影响因子：
6.3
作者：
通讯作者：
--
影响因子：
6.3
作者：
Hiranuma, N.;Augustin-Bauditz, S.;Yamashita, K.
通讯作者：
Yamashita, K.