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Assessment and validation in time domain of a Robust Satellite Technique (RST_(ASH)) for ash cloud detection

机译:鲁棒卫星技术(RST_(ASH))用于灰云检测的时域评估和验证

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摘要

The Robust Satellite Technique (RST) approach is a general scheme of satellite data analysis used to study several natural and environmental hazards. In this paper, the results of a long-term time domain analysis, performed on its RSTASH configuration, specifically tailored to detect and track volcanic ash clouds, are presented. One year of satellite sub-scenes provided by the Advanced Very High Resolution Radiometer (AVHRR), covering an area of about 90 000 km~2 around Mt Etna volcano (Italy), was analysed in order to assess RST_(Ash) performances in periods of ash emissions, as well as during unperturbed conditions (i.e. no ash events). The results and limits of such an approach are discussed, together with possible further improvements achievableby its implementation to different satellite sensor data, e.g. EOS-MODIS and MSG-SEVIRI.
机译:稳健卫星技术(RST)方法是用于研究几种自然和环境危害的卫星数据分析的通用方案。在本文中,介绍了针对其RSTASH配置进行的长期时域分析的结果,该结构专门用于检测和跟踪火山灰云。为了评估RST_(Ash)在一段时间内的性能,分析了由超高分辨率高分辨率辐射计(AVHRR)提供的为期一年的卫星子场景,覆盖了埃特纳火山(意大利)约90 000 km〜2的区域。灰排放量,以及在不受干扰的条件下(即无灰事件)。讨论了这种方法的结果和局限性,以及通过对不同的卫星传感器数据(例如,卫星数据)实施可实现的可能的进一步改进。 EOS-MODIS和MSG-SEVIRI。

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