基于静止气象卫星监测西太平洋火山活动  

Monitoring of Volcanic Activity in the Western Pacific Based on Geostationary Meteorological Satellites

作　　者：赵文化[1] 张月维 赵芯芯 ZHAO Wenhua;ZHANG Yuewei;ZHAO Xinxin(Guangzhou Meteorological Satellite Station,280 Dongguanzhuang Road,Guangzhou 510640,China;Xingyuan Shuyuan,Ocean University of China,238 Songling Road,Qingdao 266100,China)

机构地区：[1]广州气象卫星地面站,广州市510640 [2]中国海洋大学行远书院,青岛市266100

出　　处：《大地测量与地球动力学》2024年第12期1234-1239,1279,共7页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金(41172303);广东省气象局科研项目(GRMC2021M03)。

摘　　要：利用自主开发的静止气象卫星实时热点监测系统所积累的西太平洋2020~2023年卫星热点监测数据,结合全球火山活动计划(GVP)发布的全新世火山列表数据,在分析火山活动热辐射特征的基础上,提出一种基于静止气象卫星热点观测数据的火山活动监测算法,通过聚类识别技术从卫星热点数据中提取火山热点并计算火山热辐射指数。对比分析火山监测结果与GVP火山活动报告可知,该算法的火山活动识别率约为90%。漏报火山主要位于印度尼西亚地区,受火山活动类型和热带对流云系的影响。根据火山热点地理分布及其时间变化可以估算熔岩流蔓延方向、距离和速度。卫星火山热点监测数据在实时运行模式下可以作为输入因子之一驱动火山活动预报模型实时发布火山预警信息,其历史数据还可以作为高时间分辨率数据源支持火山活动研究。Using the satellite fire monitoring data accumulated by an independent development geostationary meteorological satellite system in the western Pacific from 2020 to 2023 and the VOTW Holocene volcanoes data released by the global volcanism program(GVP),we propose a volcanic activity monitoring algorithm based on geostationary meteorological satellite fire observation data.We use cluster recognition technology to extract volcanic fire from satellite hotspot data and calculate the volcanic normalized thermal index.The comparison of volcanic monitoring results with the GVP volcanic activity report shows that the identification rate of volcanic activity is about 90%.Due to the type of volcanic activity and the impact of tropical convective cloud systems,the missed reported volcanoes are mainly located in Indonesia.The spreading direction,distance and speed of lava flow can be estimated according to the geographical distribution and time variation of the volcanic fire.The satellite volcano monitoring data can be used as input variables in real-time mode to drive the volcanic activity forecast model to issue volcano warnings in real-time.The accumulated data can also be used as high time resolution data sources to support the study of volcanic activity.

关 键 词：静止气象卫星 卫星遥感 实时监测 西太平洋 火山活动 

分 类 号：P228[天文地球—大地测量学与测量工程] P317[天文地球—测绘科学与技术]