2007-02-15 16:00:21 · 2 answers · asked by «Juke» 1 in Science & Mathematics ➔ Earth Sciences & Geology
Volcanologists use geodetic techniques to measure deformation of the volcanic edifice, satellite-radar interferometry to measure gas emitions, and more importantly, seismology to identify magma movement. Seismic activity increases in frequency and intensity previous to an eruption. Seismology coupled with the other techniques help in predicting the time and magnitude of an eruption. There has been a lot of progress in this matter in the past decades.
2007-02-17 05:50:15 · answer #1 · answered by Scientist13905 3 · 0⤊ 0⤋
Scientists at CVO use a variety of geodetic techniques including global positioning systems (both continuous and campaign), satellite-radar interferometry, precise leveling, electronic distance measurements, platform and borehole tiltmeters, and borehole strainmeters to investigate ground deformation at volcanoes in the Cascades, Aleutians, Hawaii, Long Valley, and Yellowstone. Emphasis is placed on developing geodetic models that can assess changes in magmatic systems in near real time
2007-02-16 00:05:09 · answer #2 · answered by lilmiss_moca 2 · 0⤊ 0⤋