Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/1205
Authors: | Pergola, N.* Pietrapertosa, C.* Lacava, T.* Tramutoli, V.* |
Title: | Robust satellite techniques for monitoring volcanic eruptions | Issue Date: | Apr-2001 | Series/Report no.: | 2/44 (2001) | URI: | http://hdl.handle.net/2122/1205 | Keywords: | satellite remote sensing AVHRR robust techniques volcanic aerosols detection |
Subject Classification: | 04. Solid Earth::04.02. Exploration geophysics::04.02.05. Downhole, radioactivity, remote sensing, and other methods 04. Solid Earth::04.06. Seismology::04.06.08. Volcano seismology |
Abstract: | Through this paper the robust approach to monitoring volcanic aerosols by satellite is applied to an extended set of events affecting Stromboli and Etna volcanoes to assess its performance in automated detection of eruptive clouds and in monitoring pre-eruptive emission activities. Using only NOAA/AVHRR data at hand (without any specific atmospheric model or ancillary ground-based measurements) the proposed method automatically discriminates meteorological from eruptive volcanic clouds and, in several cases, identified pre-eruptive anomalies in the emission rates not identified by traditional methods. The main merit of this approach is its effectiveness in recognising field anomalies also in the presence of a highly variable surface background as well as its intrinsic exportability not only on different geographic areas but also on different satellite instrumental packages. In particular, the possibility to extend the proposed method to the incoming new MSG/SEVIRI satellite package (which is going to fly next year) with its improved spectral (specific bands for SO 2 ) and temporal (up to 15 min) resolutions has been evaluated representing the natural continuation of this work. |
Appears in Collections: | Annals of Geophysics |
Show full item record
Page view(s)
173
checked on Apr 17, 2024
Download(s) 50
250
checked on Apr 17, 2024