Combined Use of SEVIRI and MODIS for Detecting, Measuring, and Monitoring Active Lava Flows at Erupting Volcanoes
Combined Use of SEVIRI and MODIS for Detecting, Measuring, and Monitoring Active Lava Flows at Erupting Volcanoes
复制标题
结合使用 SEVIRI 和 MODIS 来检测、测量和监测火山喷发处的活跃熔岩流
DOI：
--
复制
发表时间：
2009
影响因子：
8.2
通讯作者：
F. Ferrucci
中科院分区：
文献类型：
--
作者：
B. Hirn;C. D. Bartola;F. Ferrucci
利用气象卫星第二代（MSG2）上搭载的旋转增强型可见光和红外成像仪（SEVIRI）在0度经度位置采集的多光谱数据进行分析，评估有效载荷对定量火山监测的适用性。在对流层红外透明度良好的时期，SEVIRI数据被证明特别适合于探测喷发的开始，并以15分钟的刷新率监测相关的熔岩流。在开发了一种代码，允许对MSG2每天下载的96个数据流进行快速自动处理之后，对2007年斯特隆博利火山（意大利伊奥利亚群岛）和皮顿德拉富尔奈斯火山（法国留尼汪岛）的喷发进行了彻底的监测测试。利用serviri的热、中、短红外波段提供的辐射通量和渗出率的结果，通过Terra和Aqua每天最多四次同时利用MODIS立桥进行验证。
Multispectral data acquired by Spinning Enhanced Visible and InfraRed Imager (SEVIRI) onboard the geostationary platform Meteosat Second Generation (MSG2), located at 0deg longitude, were analyzed to assess the payload suitability for quantitative volcano monitoring. In times of good infrared transparency of the troposphere, SEVIRI data proved particularly suited to detect the onset of effusive eruptions and to monitor the related lava flows with 15-min refresh rates. After development of a code allowing for fast automated processing of the 96 data streams downlinked daily by MSG2, thorough monitoring tests were carried out on the 2007 eruptions of Stromboli (Aeolian Islands, Italy) and Piton de la Fournaise (Reunion Island, France). The results in radiant flux and effusion rate provided by use of thermal, mid-, and short infrared bands of SEVIRI were validated by exploiting simultaneous MODIS overpasses by Terra and Aqua, up to four times daily.