University of Bristol
School of Earth Sciences, University of Bristol
Wills Memorial Building, Queens Road
Bristol BS8 1RJ, United Kingdom
School of Earth Sciences

Geophysical Equipment Pool

The Bristol Geophysics group owns and manages a pool of equipment for experiments and surveys at a range of scales and a broad variety of problems. This equipment supports both research and teaching activities in the group.
Remote broadband seismic station deployment in Northern Canada (The Hudson Bay Lithospheric Experiment)

Gravity surveying

We operate three state-of-the-art gravimeters: a Burris, and two Scintrex CG-5s. These are used in shallow profile surveys (usually termed 'microgravity'), as well as longer term occupations for studying time variant processes.

Broadband seismic

Lithospheric scale research in the Geophysics group is supported by our array of 8 broadband seismometers. We currently operate 6 Nanometrics Trillium 120PAs and 2 Guralp 3Ts, all connected to Nanometrics Taurus data recorders. These can be used in conjunction with instruments on temporary loan from the national equipment pool, SEIS-UK.

Shallow and Environmental Geophysical Surveying

We operate a number of instruments for shallow surveying, primarily for teaching purposes. These currently include a 24-channel Geometrics Geode seismograph and a GEM GSM-19T proton precession magnetometer. We also have a TopCon GPT-7500 EDM to provide millimetre accurate positioning; this is especially important for microgravity surveys. In addition we collaborate with several exploration consultancies (such as Terradat) which provides experience with other techniques.

GPS Surveying

The satellite-based global positioning system has revolutionised the whole field of Earth observation. Accuracy on the scale of meters is easily now achievable in exploration scale surveys, and on the scale of millimetres for when longer term observatories are used. Members of the group use both of these modes for a variety of problems. We have two state of the art GPS systems: a Topcon and a Leica, which can be used in an absolute or differential mode. These methods often provide invaluable geographic information (such as terrain corrections) for other geophysical techniques. In addition, for longer deployments, we have 2 Trimble R5 GPS stations.

Pages maintained by James Wookey.