Earthquakes IntroductionIzmit earthquakeFloods Thessaloniki (Greece)Hurricanes Storm surgesHurricane KatrinaVolcanoes IntroductionAndean Volcanic BeltEtnaNyiragongo and Nyamuragira
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Exercise 3: Lava detection: crisis images and maps - continued
| | | | Changes from 1999 – 2003
| A visual change detection is performed between the Landsat images of 1999 and those of 2003. A region in the south-west and north-east of the summit has been used as an example.
Credits: USGS | |  |  | |
| | | | | The map of the lava flows emitted during the 2002-2003 eruption (shown in red), based in part on post-eruption surveys of the lava fields (much of these carried out by staff of the Catania section of the Istituto Nazionale di Geofisica e Vulcanologia). Pyroclastic cones are shown in dark brown color, and eruptive vents in yellow. Lava flowing out during the July-August 2001 eruption are shown in pink for comparison.
Credits: Italy’s Volcanoes (http://boris.vulcanoetna.it) | | | | |
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| | Etna IntroductionChange Detection and Hazard Assessment Worksheet introductionExercise 1: Exploring the volcanoExercise 2 : Visual interpretation using terrestrial photographsExercise 3: Lava detection: crisis images and mapsExercise 4: Hazard assessment: GIS can help!Eduspace - Download Etna_Landsat_GIS.zipEduspace - Software LEOWorks 3LEOWorks 3 Tutorial
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HI-RES JPEG (Size: