NSF-SUPPORTED NATIONAL FACILITIES FOR TERRESTRIAL MAGNETOTELLURICS

1. The National Geoelectromagnetic Facility - The National Science Foundation has awarded funding to develop and build ultra-wide band (dc, micro-Hz-to-hundreds of kHz) EM receivers and supporting equipment including transmitters, for MT, AMT, CSAMT, TDEM, IP, dc resistivity methods. These new instruments (expected to be commissioned in 2011) will be available to US investigators and their non-US collaborators. Depot, support and maintenance of these instruments will be carried out by Oregon State University, which is also carrying out these support functions for the two existing instrument pools detailed immediately below. For more information, please contact the NGF or visit the NGF web site for more information.

2. EarthScope Program MT instrument pool - Oregon State University - 27 long-period (1 Hz sampling) Narod Geophysics NIMS instruments and 1 long-period LEMI 417 instrument, owned by IRIS and operated by Oregon State University. 20 of these NIMS are available for use by EarthScope Science Program PIs (MT FlexArray) when not in use for EarthScope MT Transportable Array. WIth NSF Program Director approval, hey are also potentially available for non-EarthScope science use. The remaining 7 Oregon State University-housed NIMS and the LEMI are dedicated to permanent fixed installations in EarthScope MT Backbone observatories. For information on access to the 20 transportable Narod NIMS instruments, contact Dr. Adam Schultz, Oregon State University.

To request instruments from Oregon State University enter your request on the linked form.

3. US Long-Period MT Instrument Pool - 25 long-period Narod Geophysics NIMS instruments originally acquired for the EMSOC consortium and maintained by the University of Washington through September 2010, available for general use in the US and internationally according to a fee-per-use schedule. For information on access to these instruments through September 2010, contact Dr. John R. Booker, University of Washington. (These instruments are being transferred to Oregon State University at the end of September, 2010. For access to these instruments from October 2010 and beyond, please also cc Dr. Adam Schultz, OSU, and enter your request on the linked form.) Further information and instrument requests can also be made through the National Geoelectromagnetic Facility website.

INDIVIDUAL LABORATORIES WITH SHARED-USE MAGNETOTELLURIC EQUIPMENT

Scripps Institution of Oceanography - 8 EMI-BF4 magnetometers, 2 EMI-EFSC electric field signal conditioners, 3 SIO logging systems configured for land use. We have used these as remote references for marine MT surveys. They could be used as two production sites and one remote for land MT. For more information about access contact Steven Constable or Kerry Key

Scripps Institution of Oceanography  - 50 or so "broadband" marine MT receivers designed and built under industry sponsorship are available for independent use by others in academic research.(Commercial use of these instruments for hydrocarbon exploration is restricted under existing UCSD licensing agreements.) This equipment is typically in use for SIO projects about 4 months per year, but is otherwise available. Use fees, anchors, release burnwires, and self-insurance amounts to about $1500/deployment plus overhead. Two to four Scripps technicians need to be retained to prepare, deploy, and recover the instruments. Oh, and you'll need a ship. For more information about access to these instruments contact Steven Constable or Kerry Key. For details on the instruments http://marineemlab.ucsd.edu/instruments/receiver.html