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Conference Papers

Browse almost 5,000 conference papers authored by our scientists and refine search by topic, location, year, and advanced search.

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Annual and Spatial Variation of the Kelp Forest Fish Assemblage at San Nicolas Island, California Annual and Spatial Variation of the Kelp Forest Fish Assemblage at San Nicolas Island, California

The kelp forest fishes of San Nicolas Island, California were studied from 1981-1986 to examine the causes of among-site and among-year variation in the fish assemblages. Fish counts and seven physical and biological variables were recorded at six sites around the island every spring and fall. Over the study period, a total of 45 fish species from 18 families were recorded, though...
Authors
R.J. Cowen, James L. Bodkin

Assessment and prediction of debris-flow hazards Assessment and prediction of debris-flow hazards

Study of debris-flow geomorphology and initiation mechanism has led to better understanding of debris-flow processes. This paper reviews how this understanding is used in current techniques for assessment and prediction of debris-flow hazards.
Authors
Gerald F. Wieczorek

Breakpoint-forced and bound long waves in the nearshore: A model comparison Breakpoint-forced and bound long waves in the nearshore: A model comparison

A finite-difference model is used to compare long wave amplitudes arising from two-group forced generation mechanisms in the nearshore: long waves generated at a time-varying breakpoint and the shallow-water extension of the bound long wave. Plane beach results demonstrate that the strong frequency selection in the outgoing wave predicted by the breakpoint-forcing mechanism may not be...
Authors
Jeffrey H. List

Bridge scour and change in contracted section, Razor Creek Bridge scour and change in contracted section, Razor Creek

Two large floods, 3 and 4 times the estimated 100-year peak discharge, occurred in 1986 and 1991 at a timber-pile bridge over Razor Creek in Montana. A bridge section surveyed after the 1991 flood was compared with a 1955 design section and showed total scour of 0.85 m at the left abutment, 2.23 m at the right abutment, and 0. 94 m at the pile bents. Calculated total scour based on...
Authors
Stephen R. Holnbeck, Charles Parrett, Todd N. Tillinger

Bridge-scour analysis using the water surface profile (WSPRO) model Bridge-scour analysis using the water surface profile (WSPRO) model

A program was developed to extract hydraulic information required for bridge-scour computations, from the Water-Surface Profile computation model (WSPRO). The program is written in compiled BASIC and is menu driven. Using only ground points, the program can compute average ground elevation, cross-sectional area below a specified datum, or create a Drawing Exchange Format (DXF) fie of...
Authors
David S. Mueller
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