Prototype PBO Instrumentation of CALIPSO Project Captures World-Record Lava Dome Collapse on Montserrat Volcano

Details Prototype PBO Instrumentation of CALIPSO Project Captures World-Record Lava Dome Collapse on Montserrat Volcano Prototype PBO Instrumentation of CALIPSO Project Captures World-Record Lava Dome Collapse on Montserrat Volcano

Aug 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004eostr..85..317m&link_type=abstract

EOS Transactions, AGU, Volume 85, Issue 34, p. 317-323

Physics

9

Volcanology: General Or Miscellaneous, Geodesy And Gravity: General Or Miscellaneous, Seismology: General Or Miscellaneous

Scientific paper

This article is an update on the status of an innovative new project designed to enhance generally our understanding of andesitic volcano eruption dynamics and, specifically, the monitoring and scientific infrastructure at the active Soufriàre Hills Volcano (SHV), Montserrat. The project has been designated as the Caribbean Andesite Lava Island Precision Seismo-geodetic Observatory, known as CALIPSO. Its purpose is to investigate the dynamics of the entire SHV magmatic system using an integrated array of specialized instruments in four strategically located ~200-m-deep boreholes in concert with several shallower holes and surface sites. The project is unique, as it represents the first, and only, such borehole volcano-monitoring array deployed at an andesitic stratovolcano. CALIPSO may be considered as a prototype for planned Plate Boundary Observatory (PBO) installations at several volcanic targets in the western United States. Scientific objectives of the EarthScope Integrated Science Plan (ES-ISP) relevant to magmatic systems are to investigate (1) melt generation in the mantle; (2) melt migration from the mantle to and through the crust to the surface; (3) melt residence times at various deep reservoirs; and (4) delineation of characteristic patterns of surface deformation and seismicity, which may prove useful in eruption forecasting. The CALIPSO project shares most of the same scientific goals and has, moreover, the benefit of a rich existing geophysical context in its deployment at SHV. Our experience during instrument design, planning, drilling and installation, systems integration, and early operation of CALIPSO, moreover, may prove valuable to EarthScope and PBO managers.

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