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Some Techniques for Reducing Landslide Hazards Some Techniques for Reducing Landslide Hazards

Many techniques are available for reducing landslide hazards; 27 are described in this paper. Prerequisites for the successful use of these techniques are hazard information understandable to nongeologists and adequate communication of this information to those who will, or are required to, use it. It is concluded that certain factors needed to ensure the lasting effectiveness of these...
Authors
William J. Kockelman

Alternate forms of the associated Legendre functions for use in geomagnetic modeling. Alternate forms of the associated Legendre functions for use in geomagnetic modeling.

An inconvenience attending traditional use of associated Legendre functions in global modeling is that the functions are not separable with respect to the two indices (order and degree). In 1973 Merilees suggested a way to avoid the problem by showing that associated Legendre functions of order m and degree m+k can be expressed in terms of elementary functions as Pmm+k(θ)=sinm(θ)∑ki...
Authors
L.R. Alldredge, E.R. Benton

LANDSLIDE DAMMED LAKES AT MOUNT ST. HELENS, WASHINGTON. LANDSLIDE DAMMED LAKES AT MOUNT ST. HELENS, WASHINGTON.

The collapse of the north face of Mount St. Helens on May 18, 1980, and the debris avalanche that resulted blocked outflow from Spirit Lake and Coldwater and South Fork Castle Creeks. Spirit Lake began to increase in size and lakes began to form in the canyons of Coldwater and South Fork Castle Creeks. Coldwater and Castle Lakes would have overtopped their respective blockages in late...
Authors
William Meyer, Martha A. Sabol, Robert Schuster
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