JANUARY 28, 2015
One Year of SCIMPI Data Presented at AGU 2014 Conference
Dr. Tania Insua, Ocean Analytics Program Manager at Ocean Networks Canada (ONC), presented “One Year of SCIMPI Data” at the AGU 2014 Fall Meeting in San Francisco last month. SCIMPI is an observatory system for long-term monitoring in subsea boreholes, which has successfully collected the first in situ time series data beneath the Bottom Simulator Reflector (BSR) of an active gas hydrate formation zone.
A string of nine SCIMPI modules, extending 242 meters into the seafloor from a starting depth of 1260 meters below sea level, was installed in May 2014 by the drill ship Joides Resolution during Expedition 341S of the International Ocean Discovery Program (IODP.) In September 2014, an undersea remotely operated vehicle operated by Ocean Networks Canada replaced the seafloor SCIMPI Command Module and recovered the year’s worth of data.
The data included 8,711 measurements of temperature, pressure and electrical resistivity that showed evidence of borehole closures, possible hydrate formation, and the surprise occurrence of tidal influence on temperatures below the BSR.
The acronym SCIMPI stands for Simple Cabled Instrument for Measuring Parameters In-situ. Development of SCIMPI was funded by IODP Management, Inc., and performed by a team that was led by the University of Rhode Island and included Transcend Engineering, Woods Hole Marine Systems, Inc., and Lamont Doherty Earth Observatory. Transcend performed systems engineering, integration, and embedded systems development, including the ultra-long life power management scheme which allows SCIMPI to last over four years without replenishing batteries.
Transcend Engineering offers fully SCIMPI-compatible Measurement Modules and Command Modules as well as SCIMPI consultation and customization services.
Transcend Engineering develops innovations in sensing and instrumentation for geotechnical, oceanographic, atmospheric, transportation, and security uses. They are located in Bethel, Vermont.