A flexible component of 400 portable, three-component, short-period and broadband seismographs and 2000 single-channel high frequency recorders for active and passive source studies that will augment the transportable array, permitting a range of specific targets to be addressed in a focused manner. An additional pool of 100 portable campaign GPS receivers has been acquired for temporary deployments and rapid response.
Campaign/Flexible instruments allow for focused observation and study of key geophysical locals and are available to the scientific community through proposals approved by the NSF.
Campaign Instrument Availability
GPS campaign systems include low power, large memory, dual frequency GPS receivers and antennas. Portable batteries charged using lightweight solar panels will power systems. Monumentation options will be determined on a project-by-project basis. Ten of the 100 systems include real-time kinematic capability requiring additional radio and data logging equipment. Real-time kinematic systems will be used to rapidly map fault traces and profile fault escarpments and collect precise position information for GIS based geologic mapping.
A pool of ~2400 seismic instruments (200 broadband, 200 short-period, and 2000 high-frequency) has been acquired that can be deployed using flexible source-receiver geometries. These additional portable instruments will permit high-density, short-term observations of key targets within the footprint of the larger transportable array using both natural and active sources. USArray's flexible component offers exciting opportunities for a variety of focused investigations requiring higher resolution images embedded within the context of the larger array.