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通过多卫星观测跟踪来自加火山爆发的SO2

Congzi Xia^1,2, Cheng Liu^3,4,2,5,6, Zhaonan Cai⁷

¹Institute of Big Data for Vocational Education, Guangdong Polytechnic of Science and Technology, Zhuhai 519000, China.

|March 29, 2024

概括

洪加通加-洪加哈帕伊火山爆发的二氧化硫 (SO2) 排放量被标准方法低估了. 新的研究准确地测量了SO2和羽毛高度,揭示了气候和火山研究至关重要的更高的排放量.

科学领域:

火山学火山学是一门学科.
大气科学大气科学
气候科学气候科学

背景情况:

洪加通加-洪加哈帕伊 (Hunga Tonga-Hunga Ha'apai,简称HTHH) 喷发引起了全球广泛的兴趣,因为它的规模和潜在的环境影响.
运营中的二氧化硫 (SO2) 监测通常会错误地计算火山爆发的排放量,因为浮标高度假设的不确定性.

研究的目的:

为了准确地检索火山二氧化硫 (SO2) 排放量和来自HTHH喷发的羽毛高度.
为了探索SO2负担,分布和在HTHH喷发后的演变.
为气候建模和研究海底火山提供改进的数据.

主要方法:

同时采集火山SO2和羽毛高度,使用热带层监测仪 (TROPOMI) 和环境监测仪-2 (EMI-2) 的数据.
从1月14日至17日对SO2负担,分布和演变的分析.

主要成果:

捕获了多个HTHH喷发,第二次喷发释放的SO2比第一次多得多.
总SO2排放量超过900千,远高于运行产品的估计.
假定的排放流和注入高度为大气和气候研究提供了关键数据.

结论:

精确测量火山SO2排放和羽毛高度对于了解大气硫酸盐气溶演变和气候影响至关重要.
该研究强调了当前用于重大火山事件的SO2产品的局限性.
这些发现为气候建模和研究海底火山过程提供了宝贵的见解.

关键词:

地球科学地球科学遥感是一种远程传感.

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