Abstract

We present the observations of stratospheric aerosol at Rosgidromet lidar stations after the explosive eruption of the Raikoke volcano (Kuril Islands, 48.29° N, 153.25° E) in June 2019. The forward trajectory analysis and observations by the CALIOP lidar onboard the CALIPSO satellite were used to track how the aerosol trace in the stratosphere propagated from the volcano around the pole toward Western Siberia within a month after the eruption. We presented the lidar measurements of volcanic aerosol from late July 2019 at the Rosgidromet lidar stations in Obninsk, Znamensk, Novosibirsk, and Petropavlovsk-Kamchatsky. Volcanic aerosol was observed in the layer from 13 to 18 km. The integrated backscattering coefficient in the layer varied from a maximum of (0.8–1.6) × 10⁻³ sr⁻¹ in August–September 2019 to (0.2–0.3) × 10⁻³ sr⁻¹ toward the end of the year.

中文翻译：

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2019年6月莱科克火山喷发后，罗斯基德罗德激光雷达站的平流层气溶胶观测

摘要

我们将在2019年6月Raikoke火山（库里尔群岛，北纬48.29°，东经153.25°E）爆发后，在Rosgidromet激光雷达站上观测平流层气溶胶.CALIPSO卫星上的CALIOP激光雷达进行的前向轨迹分析和观测是用来追踪平流层中的气溶胶痕迹在喷发后一个月内如何从极地周围的火山向西伯利亚传播。我们从2019年7月下旬开始在奥布宁斯克，兹纳姆斯克，新西伯利亚和彼得罗巴甫洛夫斯克-堪察加半岛的Rosgidromet激光雷达站介绍了火山气溶胶的激光雷达测量结果。在13至18 km的层中观察到火山气溶胶。该层中的背向散射积分系数最大变化范围为（0.8–1.6）×10 ^-3 sr ^-1到今年年底，在2019年8月至9月为（0.2-0.3）×10 ^-3 sr ^-1。