Conference Papers
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Cross‐hole radar attenuation tomography using a frequency centroid down‐shift method: Consideration of non‐linear frequency dependence of EM wave attenuation Cross‐hole radar attenuation tomography using a frequency centroid down‐shift method: Consideration of non‐linear frequency dependence of EM wave attenuation
This paper presents a cross-hole radar attenuation tomography method based on analysis of the down-shift in the spectrum centroid frequency, and spectral broadening of the received radar signals. The method uses a parameter that combines centroid frequency down shift and variance increase for the projection function to construct the tomography algorithm. In comparison with other methods...
Authors
Lanbo Liu, Chaoguang Zhou, John W. Lane, F.P. Haeni
Experimental analysis of debris-flow deposition--process and effects of pore-fluid pressure Experimental analysis of debris-flow deposition--process and effects of pore-fluid pressure
No abstract available.
Authors
Jon J. Major, Richard M. Iverson
Response of flexible wire rope barriers to debris-flow loading Response of flexible wire rope barriers to debris-flow loading
No abstract available.
Authors
Jay S. DeNatale, Gregg L. Fiegel, Richard M. Iverson, Jon J. Major, Richard G. Lahusen, John D. Duffy, Gregory D. Fisher
Offset-vertical seismic profiling for marine gas hydrate exploration: Is it a suitable technique? First results from ODP Leg 164 Offset-vertical seismic profiling for marine gas hydrate exploration: Is it a suitable technique? First results from ODP Leg 164
Walkaway vertical seismic profiles were acquired during Ocean Drilling Project (ODP) Leg 164 at the Blake Ridge to investigate seismic properties of hydrate-bearing sediments and the zone of free gas beneath them. An evaluation of compressional (P-) wave arrivals Site 994 indicates P-wave anisotrophy in the sediment column. We identified several shear (S-) wave arrivals in the horizontal
Authors
I.A. Pecher, W.S. Holbrook, R.A. Stephen, H. Hoskins, D. Lizarralde, D. R. Hutchinson, W.T. Wood
A plan to assess native and exotic plant diversity and cryptobiotic crusts in the Grand Staircase-Escalante National Monument A plan to assess native and exotic plant diversity and cryptobiotic crusts in the Grand Staircase-Escalante National Monument
No abstract available.
Authors
Thomas J. Stohlgren, Jayne Belnap, G.W. Chong, R.M. Reich
A resource in crisis: Changing the measure of salmon management A resource in crisis: Changing the measure of salmon management
No abstract available.
Authors
C.A. Frissell, W.J. Liss, R. E. Gresswell, R.K. Nawa
Bobcat (Felis rufus) ecology and management Bobcat (Felis rufus) ecology and management
The bobcat (Felis rufus) is a medium sized predator in the family Felidae found exclusively in North America. Extensive natural history information is available and is summarized in several bibliographies and reviews (Sweeny and Poelker 1977, McCord and Cardoza 1982, Boddicker 1983, Anderson 1987, Rolley 1987). The bobcat is a spotted cat with a short white-tipped tail, small dark ear...
Authors
Judd A. Howell
Ecological risk analysis of a piscivorous fish introduction into the Yellowstone Lake ecosystem Ecological risk analysis of a piscivorous fish introduction into the Yellowstone Lake ecosystem
No abstract available.
Authors
Robert E. Greswell, H. Li
Evolution and life-history organization of Yellowstone cutthroat trout Evolution and life-history organization of Yellowstone cutthroat trout
No abstract available.
Authors
Robert E. Gresswell, Richard N. Williams, K. Shiokawa
Experimental methods for restoring boreal toad populations in Rocky Mountain National Park Experimental methods for restoring boreal toad populations in Rocky Mountain National Park
No abstract available.
Authors
Therese L. Johnson, Erin L. Muths, P. Stephen Corn
Geophysical evidence for late Cenozoic subglacial volcanism beneath the West Antarctic ice sheet and additional speculation as to its origin Geophysical evidence for late Cenozoic subglacial volcanism beneath the West Antarctic ice sheet and additional speculation as to its origin
No abstract available.
Authors
John C. Behrendt, D. D. Blankenship, D. Damaske, A. K. Cooper, C. Finn, R.E. Bell, C. Ricci