arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.11565astro-ph.EPastro-ph.IMphysics.ao-ph
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基于广角彩色和偏振分析的极地平流层云粒子谱反演

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

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

摘要:

2019-2020年冬季转移到北欧的北极强烈极地平流层涡旋导致低温和极地平流层云频繁出现,随后臭氧总含量大幅下降。在Lovozero(俄罗斯摩尔曼斯克地区,北纬68.0度,东经35.1度)使用全天空照相机进行的偏振测量和多色测光,以及在黄昏背景下进行云场分离的新方法,可以找到与极地平流层云的颗粒大小分布有关的光散射特性。与激光雷达和气球实验的结果进行了比较。本文讨论了第一类极区平流层云出现的条件。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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