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Reconnaissance investigation of sediment distribution, erosion, and transport in the upper Deschutes River, Deschutes County, Oregon, November 1986

A preliminary investigation of sediment distribution, erosion, and transport in the upper Deschutes River was conducted in response to the perceived problem that brown trout spawning gravels were being rendered unusable due to an accumulation of fine-grained sediment. Contrary to the contention that channel gravels are being covered by fine-grained sediment, examination of the river channel at sev
Authors
K. A. Cameron, J. J. Major

Multispectral Landsat images of Antarctica

No abstract available.
Authors
Baerbel K. Lucchitta, Jo-Ann Bowell, K.L. Edwards, E. M. Eliason, H.M. Ferguson

System designed for issuing landslide alerts in the San Francisco Bay area

A system for forecasting landslides during major storms has been developed for the San Francisco Bay area by the U.S Geological Survey and was successfully tested during heavy storms in the bay area during February 1986. Based on the forecasts provided by the USGS, the National Weather Service (NWS) included landslide warnings in its regular weather forecasts or in special weather statements trans
Authors
D. Finley

Gulf trough: The Atlantic connection

Analyses of seismic reflection profiles and stratigraphic data indicate a continuation of the Gulf trough trend across eastern South Carolina and offshore between Cape Fear and Cape Hatteras, North Carolina. Seismic profiles show a linear northeast-trending zone of nondeposition and erosion and areas of chaotic deposition in the Eocene and Oligocene sections. The character of deposition and erosio
Authors
Peter Popenoe, Vernon J. Henry, Faisal M. Idris

Sidescan sonar as a tool for detection of demersal fish habitats

Sidescan sonar can be an effective tool for the determination of the habitat distribution of commercially important species.  This technique has the advantage of rapidly mapping large areas of the seafloor.  Sidescan images (sonographs) may also help to identify appropriate fishing gears for different types of seafloor or areas to be avoided with certain types of gears.  During the early stages of
Authors
Kenneth W. Able, David C. Twichell, Churchill B. Grimes, R. S. Jones