Debris Flows and Hyperconcentrated Streamflows

by Gerald F. Wieczorek, (M.ASCE), US Geological Survey, Menlo Park, CA, USA,



Document Type: Proceeding Paper

Part of: Water Forum '86: World Water Issues in Evolution

Abstract:

Examination of recent debris-flow and hyperconcentrated-streamflow events in the western United States reveals (1) the topographic, geologic, hydrologic, and vegetative conditions that affect initiation of debris flows and (2) the wide ranging climatic conditions that can trigger debris flows. Recognition of these physiographic and climatic conditions has aided development of preliminary methods for hazard evaluation. Recent developments in the application of electronic data gathering, transmitting, and processing systems shows potential for real-time hazard warning.

Subject Headings: Solids flow | Debris | Streamflow | Disaster warning systems | Climates | Natural disasters | Sediment transport | United States

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