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Publications

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Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska

No abstract available.
Authors
John B. Townshend, R. V. O'Connell, Carol Ann Varner

Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska

No abstract available.
Authors
John B. Townshend, R. V. O'Connell, Carol Ann Varner

Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska

No abstract available.
Authors
John B. Townshend, R. V. O'Connell, Carol Ann Varner

Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska

No abstract available.
Authors
John B. Townshend, R. V. O'Connell, Carol Ann Varner

Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska

No abstract available.
Authors
John B. Townshend, R. V. O'Connell, Carol Ann Varner

Preliminary geomagnetic data, College Observatory, Fairbanks, Alaska

No abstract available.
Authors
John B. Townshend, R. V. O'Connell, Carol Ann Varner

A broad-band, wide-dynamic range, strong-motion array near Parkheld, California, USA for measurement of acceleration and volumetric strain

No abstract available.
Authors
Roger D. Borcherdt, Malcolm J. S. Johnston, Thomas Noce, Gary Glassmoyer, Douglas Myren

Making a big impression

No abstract available.
Authors
M. H. Carr

Vertical seismic profiling of Oroville microearthquakes: Velocity spectra and particle motion as a function of depth

Direct evidence of site distortion of P- and S-wave microearthquake source spectra at Oroville, California, is presented. The data were gathered by placing vertical and three-component seismometers at 90 m intervals in a 500 m borehole through the Cleveland Hill normal fault, on which the 1975, ML = 5.7 Oroville earthquake took place. High-pressure, hydraulic locking mechanisms were used to firmly
Authors
P. E. Malin, J. A. Waller, Roger D. Borcherdt, E. Cranswick, Edward G. Jensen, J. Van Schaak

Friction of ice

The frictional strength of ice seems to be well below that for all other rocks. Triaxial testing of cylinders of pure water ice containing a 45° inclined sawcut, at temperatures of 77 ≤ T ≤ 115 K and confining pressures 0.1 ≤ P ≤ 250 MPa, reveals the frictional laws τ = 0.20 σn + 8.3 MPa for P ≥ 10 MPa and τ = 0.55 σn + 1.0 MPa for P ≤ 5 MPa, where τ and σn are the shear and normal stresses on the
Authors
M. L. Beeman, W. B. Durham, Stephen H. Kirby

Numerical analysis of Landsat Thematic Mapper images of Antarctica

Landsat-5 Thematic Mapper (TM) data from Dronning [Queen] Maud Land, Antarctica, have been analysed to provide insights into physical properties of the ice sheet. Brightness (at-satellite) temperatures calculated from digital numbers of the thermal band (TM band 6), using state-of-the-art equations and constants (Markham and Barker 1986), are 8° to 20°C lower than temperatures measured on the surf
Authors
Olav Orheim, Baerbel K. Lucchitta