A new method for monitoring global volcanic activity
The ERTS Data Collection System makes it feasible for the first time to monitor the level of activity at widely separated volcanoes and to relay these data rapidly to one central office for analysis. While prediction of specific eruptions is still an evasive goal, early warning of a reawakening of q...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19740022640 2023-05-15T16:49:47+02:00 A new method for monitoring global volcanic activity Eaton, J. P. Ward, P. L. Harlow, D. H. Endo, E. Allen, R. Unclassified, Unlimited, Publicly available JAN 1, 1974 application/pdf http://hdl.handle.net/2060/19740022640 unknown Document ID: 19740022640 Accession ID: 74N30753 http://hdl.handle.net/2060/19740022640 No Copyright CASI GEOPHYSICS PAPER-G7 NASA. Goddard Space Flight Center 3d ERTS-1 Symp., Vol. 1, Sect. A; p 681-689 1974 ftnasantrs 2019-07-21T11:20:20Z The ERTS Data Collection System makes it feasible for the first time to monitor the level of activity at widely separated volcanoes and to relay these data rapidly to one central office for analysis. While prediction of specific eruptions is still an evasive goal, early warning of a reawakening of quiescent volcanoes is now a distinct possibility. A prototypical global volcano surveillance system was established under the ERTS program. Instruments were installed in cooperation with local scientists on 15 volcanoes in Alaska, Hawaii, Washington, California, Iceland, Guatemala, El Salvador and Nicaragua. The sensors include 19 seismic event counters that count four different sizes of earthquakes and six biaxial borehole tiltmeters that measure ground tilt with a resolution of 1 microradian. Only seismic and tilt data are collected because these have been shown in the past to indicate most reliably the level of volcano activity at many different volcanoes. Furthermore, these parameters can be measured relatively easily with new instrumentation. Other/Unknown Material Iceland Alaska NASA Technical Reports Server (NTRS) |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
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topic |
GEOPHYSICS |
spellingShingle |
GEOPHYSICS Eaton, J. P. Ward, P. L. Harlow, D. H. Endo, E. Allen, R. A new method for monitoring global volcanic activity |
topic_facet |
GEOPHYSICS |
description |
The ERTS Data Collection System makes it feasible for the first time to monitor the level of activity at widely separated volcanoes and to relay these data rapidly to one central office for analysis. While prediction of specific eruptions is still an evasive goal, early warning of a reawakening of quiescent volcanoes is now a distinct possibility. A prototypical global volcano surveillance system was established under the ERTS program. Instruments were installed in cooperation with local scientists on 15 volcanoes in Alaska, Hawaii, Washington, California, Iceland, Guatemala, El Salvador and Nicaragua. The sensors include 19 seismic event counters that count four different sizes of earthquakes and six biaxial borehole tiltmeters that measure ground tilt with a resolution of 1 microradian. Only seismic and tilt data are collected because these have been shown in the past to indicate most reliably the level of volcano activity at many different volcanoes. Furthermore, these parameters can be measured relatively easily with new instrumentation. |
format |
Other/Unknown Material |
author |
Eaton, J. P. Ward, P. L. Harlow, D. H. Endo, E. Allen, R. |
author_facet |
Eaton, J. P. Ward, P. L. Harlow, D. H. Endo, E. Allen, R. |
author_sort |
Eaton, J. P. |
title |
A new method for monitoring global volcanic activity |
title_short |
A new method for monitoring global volcanic activity |
title_full |
A new method for monitoring global volcanic activity |
title_fullStr |
A new method for monitoring global volcanic activity |
title_full_unstemmed |
A new method for monitoring global volcanic activity |
title_sort |
new method for monitoring global volcanic activity |
publishDate |
1974 |
url |
http://hdl.handle.net/2060/19740022640 |
op_coverage |
Unclassified, Unlimited, Publicly available |
genre |
Iceland Alaska |
genre_facet |
Iceland Alaska |
op_source |
CASI |
op_relation |
Document ID: 19740022640 Accession ID: 74N30753 http://hdl.handle.net/2060/19740022640 |
op_rights |
No Copyright |
_version_ |
1766039971558326272 |