Documents Dynamic planet. Can you name the four spheres? How do the four spheres link together? Biosphere...

Slide 1 Dynamic planet Slide 2 Can you name the four spheres? Slide 3 How do the four spheres link together? Biosphere Geosphere Hydrosphere Atmosphere How do humans damage…

Documents March 8, 2005

March 8, 2005 U.S. Department of the Interior U.S. Geological Survey The Ongoing, Mind-blowing Eruption of Mount St. Helens Dan Dzurisin On behalf of colleagues at the USGS…

Documents MONITORING ITALIAN VOLCANOES BY NOAA–AVHRR SATELLITE DATA

Hotspot detection tested during 2006 Mt. Etna eruption Alarm Correctness Works well on night hotspots Almost 100% effective at > 25°C contrast False alarms due to sunrise…