论文标题

基于广角颜色和极化分析的极性平流层云的粒度分布检索

Retrieval of Particle Size Distribution of Polar Stratospheric Clouds Based on Wide-Angle Color and Polarization Analysis

论文作者

Ugolnikov, Oleg S., Kozelov, Boris V., Pilgaev, Sergey V., Roldugin, Alexey V.

论文摘要

2019 - 2020年冬季,北极的密集极性平流层涡流转移到北欧,导致低温和极地平流层云的频繁发生,然后大量减少了总臭氧含量。使用洛瓦泽罗(Murmansk Region,俄罗斯穆尔曼斯克地区,68.0摄氏度N,35.1度e)的偏振法和多色光度法,以及一种与暮光背景相对于暮光背景的新方法,可以找到与极性平层云的粒度尺寸分布相关的光散射特征。结果与LiDAR和气球实验进行了比较。讨论了视觉上明亮的极性平流层I型的出现条件。

The intensive polar stratospheric vortex in the Arctic that shifted to northern Europe in the winter of 2019-2020 caused low temperatures and the frequent occurrence of polar stratospheric clouds followed by a significant decrease in the total ozone content. Polarimetry and multi-color photometry using all-sky cameras in Lovozero (Murmansk Region, Russia, 68.0 deg N, 35.1 deg E) together with a new method of cloud field separation against the twilight background allowed for finding the light scattering characteristics related to the particle size distribution of polar stratospheric clouds. The results are compared with lidar and balloon experiments. The conditions of the appearance of visually bright polar stratospheric clouds of type I are discussed.

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