Retrieval of Volcanic Sulfate Aerosols Optical Parameters from AHI Radiometer Data  

作　　者：Andrei FILEI Olga GIRINA Aleksei SOROKIN 

机构地区：[1]Far-Eastern Center of State Research Center for Space Hydrometeorology«Planeta»,Khabarovsk 680000,Russia [2]Institute of Volcanology and Seismology Far Eastern Branch of the Russian Academy of Sciences,Petropavlovsk-Kamchatsky 683006,Russia [3]Computing Center of the Far Eastern Branch of the Russian Academy of Sciences,Khabarovsk 680000,Russia

出　　处：《Advances in Atmospheric Sciences》2024年第10期1953-1968,共16页大气科学进展（英文版）

基　　金：The studies were carried out using the resources of the Center for Shared Use of Scientific Equipment“Center for Processing and Storage of Scientific Data of the Far Eastern Branch of the Russian Academy of Sciences”(Sorokin et al.,2017)(Project No.075-15-2021-663).

摘　　要：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.

关 键 词：H_(2)SO_(4) VOLCANO Himawari-8 mass loading volcanic ash optical thickness the Karymsky volcano 

分 类 号：P407[天文地球—大气科学及气象学] P317.3