Bibliographic Details
| Title: |
Retrieval of Volcanic Sulfate Aerosols Optical Parameters from AHI Radiometer Data. |
| Authors: |
Filei, Andrei1 (AUTHOR) vmer@dvrcpod.ru, Girina, Olga2 (AUTHOR), Sorokin, Aleksei3 (AUTHOR) |
| Source: |
Advances in Atmospheric Sciences. Oct2024, Vol. 41 Issue 10, p1953-1968. 16p. |
| Subject Terms: |
*Sulfate aerosols, *Ice crystals, *Volcanic ash, tuff, etc., *Brightness temperature, *Aerosols |
| Abstract (English): |
This paper presents a method for retrieving optical parameters from volcanic sulfate aerosols from the AHI radiometer on board the Himawari-8 satellite. The proposed method is based on optical models for various mixtures of aerosol components from volcanic clouds, including ash particles, ice crystals, water drops, and sulfate aerosol droplets. The application of multi-component optical models of various aerosol compositions allows for the optical thickness and mass loading of sulfate aerosol to be estimated in the sulfuric cloud formed after the Karymsky volcano eruption on 3 November 2021. A comprehensive analysis of the brightness temperatures of the sulfuric cloud in the infrared bands was performed, which revealed that the cloud was composed of a mixture of sulfate aerosol and water droplets. Using models of various aerosol compositions allows for the satellite-based estimation of optical parameters not only for sulfate aerosol but also for the whole aerosol mixture. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
摘要: 本文提出了一种基于葵花-8号卫星上AHI辐射计观测反演火山硫酸盐气溶胶光学参数的方法。利用火山云中多种气溶胶混合光学模型,具体包括火山灰颗粒、冰晶、水滴和硫酸盐气溶胶,估算了2021年11月3日Karymsky火山喷发形成的硫酸盐气溶胶载荷以及光学厚度。通过对红外波段火山云的亮温进行综合分析,发现了火山云为硫酸盐气溶胶和水滴的混合体。基于多气溶胶组分的模型,可估算火山云中所有气溶胶的光学参数。 [ABSTRACT FROM AUTHOR] |
| Database: |
Energy & Power Source |
