Alluvial fan flooding / / Committee on Alluvial Fan Flooding, Water Science and Technology Board, Commission on Geosciences, Environment, and Resources, National Research Council

• Pubblicazione: Washington, D.C., : National Academy Press, 1996
• Edizione: 1st ed.
• Descrizione fisica: 1 online resource (x, 172 pages) : illustrations, maps
• Disciplina: 363.34/93
• Soggetto topico: Alluvial fans; Floodplain management
• Note generali: Bibliographic Level Mode of Issuance: Monograph
• Nota di bibliografia: Includes bibliographical references.
• Nota di contenuto: ALLUVIAL FAN FLOODING -- Copyright -- Preface -- Contents -- Summary -- 1 Introduction -- ORIGIN OF THE PROBLEM -- The Problem of Delineating Flood Hazards on Alluvial Fans -- The Problem of Defining Alluvial Fan Flooding -- THE COMMITTEE'S RESPONSE -- THE NFIP DEFINITION OF ALLUVIAL FAN FLOODING -- IMPLICATIONS OF ALLUVIAL FAN FLOODING AS A DISTINCT TYPE OF FLOODING -- IMPLICATIONS OF ALLUVIAL FAN FLOODING FOR FLOODPLAIN MANAGEMENT -- THE COMMITTEE'S DEFINITION OF ALLUVIAL FAN FLOODING -- REFERENCES -- 2 Flooding Processes and Environments on Alluvial Fans -- FORMATION AND NATURE OF ALLUVIAL FANS -- Streamflow Fans -- Debris Flow Fans -- Composite Fans -- Incised Channels on Fans -- FLOODING PROCESSES ON ALLUVIAL FANS -- Flooding on Streamflow Fans -- Flooding on Debris Flow Fans -- Flooding on Composite Fans -- CHANGE OVER TIME -- REPORTS OF FLOODING ON ALLUVIAL FANS -- REFERENCES -- 3 Indicators for Characterizing Alluvial Fans and Alluvial Fan Flooding -- STAGE 1: RECOGNIZING AND CHARACTERIZING ALLUVIAL FAN LANDFORMS -- Determining whether or not a Landform is an Alluvial Fan -- Composition -- Morphology -- Location -- Defining the Boundaries of an Alluvial Fan -- Toe -- Lateral Boundaries -- STAGE 2: DEFINING THE NATURE OF THE ALLUVIAL FAN ENVIRONMENT AND IDENTIFYING THE LOCATION OF ACTIVE EROSION AND DEPOSITION -- Defining Active -- Identifying Areas of Flooding and Deposition on the Active Part of an Alluvial Fan -- Preparing a Geomorphic Map of Different Age Fan Surfaces -- Morphologic and Weathering Criteria Used to Prepare a Geomorphic Map -- Vegetation Criteria Used to Prepare a Geomorphic Map -- Types of Alluvial Fan Flooding -- Defining Flooding along Stable Channels -- Identifying Areas Where Sheetflow Deposition Occurs -- Identifying Areas Where Debris Flow Deposition Occurs. ; STAGE 3: DEFINING AND CHARACTERIZING AREAS OF 100-YEAR ALLUVIAL FAN FLOODING -- AVAILABLE METHODS OF ANALYSIS -- SUMMARY -- REFERENCES -- 4 Applying the Indicators to Example Fans -- HENDERSON CANYON, CALIFORNIA -- Recognizing and Characterizing Alluvial Fans -- Determining whether or not a Landform is an Alluvial Fan -- Composition -- Morphology -- Location -- Defining the Lateral Boundaries and Topographic Apex of the Alluvial Fan -- Defining the Nature of the Alluvial Fan Environment -- Active Fan -- Relict Fan -- Mountainous Drainage Basin -- Storm of August 15-17, 1977 -- Changes in Flow Path -- Characterizing Alluvial Fan Flooding Processes -- Defining Areas of Active Alluvial Fan Flood Hazard -- Defining Areas of Nonalluvial Fan Flooding Hazard along Stable Channels -- Determining the Type of Processes Occurring on the Active Parts of the Alluvial Fan -- THOUSAND PALMS WASH, CALIFORNIA -- Recognizing and Characterizing Alluvial Fans -- Determining whether or not a Landform is an Alluvial Fan -- Defining the Lateral Boundaries and Topographic Apex of the Alluvial Fan -- Defining the Nature of the Alluvial Fan Environment -- Active Fan -- Relict Fan -- Mountainous Drainage Basin -- Flood of 1977 -- Flow Path Changes -- Characterizing Alluvial Fan Flooding and Sedimentation Processes -- LYTLE CREEK, CALIFORNIA -- Recognizing and Characterizing Alluvial Fans -- Determining whether or not a Landform is an Alluvial Fan -- Defining the Lateral Boundaries and Topographic Apex of the Alluvial Fan -- Defining the Nature of the Alluvial Fan Environment -- Active Fan -- Relict Fan -- Mountainous Drainage Basin -- Past Floods -- Flow Path Changes -- Characterizing Alluvial Fan Flooding Processes -- TORTOLITA MOUNTAINS, ARIZONA -- Recognizing and Characterizing Alluvial Fans -- Determining Whether or Not a Landform is an Alluvial Fan -- Composition. ; Morphology -- Location -- Defining the Lateral Boundaries and Topographic Apex of the Alluvial Fan -- Defining the Nature of the Alluvial Fan Environment -- CAREFREE, ARIZONA -- Recognizing and Characterizing Alluvial Fans -- Determining whether or not a Landform is an Alluvial Fan -- Composition -- Morphology -- Location -- Defining the Lateral Boundaries and Topographic Apex of the Alluvial Fan -- Defining the Nature of the Alluvial Fan Environment -- Accounts of Flooding -- Storm of June 22, 1972 -- Storm of October 6, 1993 -- Flow Path Movement -- Characterizing Alluvial Fan Flooding Processes -- Defining Areas of Active Alluvial Fan Flooding Hazard -- Defining Areas of Nonalluvial Fan Flooding Hazard along Stable Channels -- Determining the Types of Processes Occurring on the Active Parts of the Alluvial Fan -- Using Soil Maps to Define the Nature of the Fan and the Extent of Flooding -- RUDD CREEK, UTAH -- Recognizing and Characterizing Alluvial Fans -- Determining whether or not a Landform is an Alluvial Fan -- Composition -- Morphology -- Location -- Defining the Lateral Boundaries and Topographic Apex of the Alluvial Fan -- Defining the Nature of the Alluvial Fan Environment -- Active Fan -- Relict Fan -- Mountainous Drainage Basin -- Sedimentation Event of 1983 -- Flow Path Changes -- Characterizing Alluvial Fan Flooding Processes -- Defining Areas of Active Alluvial Fan Flooding Hazard -- Determining the Type of Processes Occurring on the Active Parts of the Alluvial Fan -- HUMID REGION ALLUVIAL FANS -- Recognizing and Characterizing Alluvial Fans -- Determining whether or not a Landform is an Alluvial Fan -- Composition -- Morphology -- Location -- Defining the Toe, Lateral Boundaries, and Topographic Apex of an Alluvial Fan -- Defining the Nature of the Alluvial Fan Environment and Identifying the Loci of Active Sedimentation. ; Defining Active -- Identifying Areas of Flooding and Deposition for the Time Period Chosen to Represent the Active Part of an Alluvial Fan -- Defining and Characterizing Areas of Alluvial Fan Flooding on Active Parts of Alluvial Fans -- Defining Areas of Alluvial Fan Flooding Hazard -- Identifying Areas where Flow Departs from Confined Channels (i.e., where Flow Paths are Uncertain) -- Identifying Areas where Sheetflood Deposition Occurs -- Identifying Areas where Debris Flow Deposition Occurs -- Identifying Areas where Structures or Obstructions Might Aggravate or Cause Alluvial Fan Flooding -- Defining Areas of Nonalluvial Fan Flooding Hazard along Stable Channels -- SUMMARY -- REFERENCES -- 5 Conclusions and Recommendations -- CONCLUSIONS -- RECOMMENDATIONS -- Definition -- Supporting Explanation -- Appendix A Characteristics and Hazards Reported in Published and Unpublished Accounts of Alluvial Fan Flooding -- REFERENCES -- Appendix B Sources of Data -- Appendix C Biographical Sketches of Committee Members -- Appendix D Glossary and List of Acronyms -- List of Acronyms.
• Titolo autorizzato: Alluvial fan flooding
• ISBN: 0-309-18549-1; 1-280-19195-3; 9786610191956; 0-309-58938-X; 0-585-02884-2
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910827540503321
• Lo trovi qui: Univ. Federico II