Alluvial fans are ubiquitous geomorphological features that occur throughout the world, regardless of climate, at the front of mountains as the result of erosion and deposition. They are more prominent in semi- and arid climates simply because of the lack of vegetative cover that masks their fan shapes in more humid areas. From both engineering and geological viewpoints, alluvial fans present particular fluvial and sedimentation hazards in semi- and arid regions because episodic rainfall-runoff events can result in debris, mud, and fluvial flows through complex and, in some cases, migratory channel systems. Further, in semi- and arid climates alluvial fans often end in terminal or playa lakes. Given the uniform topography of playa lakes, these features often present ideal locations for facilities such as airports; however, regardless of the engineering advantages of the topography, the episodic and often long-term flooding of these lakes attracts migratory birds. The purpose of this volume is to summarize the current state-of-the-art, from the viewpoint of engineering, in the identification and mitigation of flood hazard on alluvial fans; and to accomplish this a fundamental understanding of geology is required.
Sprache
Verlagsort
Zielgruppe
Für höhere Schule und Studium
Für Beruf und Forschung
Maße
Höhe: 235 mm
Breite: 157 mm
Dicke: 17 mm
Gewicht
ISBN-13
978-981-4355-09-4 (9789814355094)
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Schweitzer Klassifikation
Herausgeber*in
Univ Of Texas At San Antonio, Usa
Desert Research Inst, Usa
Introduction; Geologic and Hydraulic Concepts of Arid Environments; Traditional Approaches to Flood Hazard Identification and Mitigation on Alluvial Fans; New Approaches for Alluvial Fan Flood Hazard; Flood Hazard Mapping Versus Flood Risk Analysis; Playa Lake Hazards and Resources; Needs and Benefits of Co-Operation; Meeting the Challenge; Future Directions.