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Geomorphic Analysis of River Systems
An Approach to Reading the Landscape
Taschenbuch von Kirstie A. Fryirs (u. a.)
Sprache: Englisch

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Beschreibung
Filling a niche in the geomorphology teaching market, this introductory book is built around a 12 week course in fluvial geomorphology.

'Reading the landscape' entails making sense of what a riverscape looks like, how it works, how it has evolved over time, and how alterations to one part of a catchment may have secondary consequences elsewhere, over different timeframes. These place-based field analyses are framed within their topographic, climatic and environmental context. Issues and principles presented in the first part of this book provide foundational understandings that underpin the approach to reading the landscape that is presented in the second half of the book. In reading the landscape, detective-style investigations and interpretations are tied to theoretical and conceptual principles to generate catchment-specific analyses of river character, behaviour and evolution, including responses to human disturbance.

This book has been constructed as an introductory text on river landscapes, providing a bridge and/or companion to quantitatively-framed or modelled approaches to landscape analysis that are addressed elsewhere. Key principles outlined in the book emphasise the importance of complexity, contingency and emergence in interpreting the character, behaviour and evolution of any given system.

The target audience is second and third year undergraduate students in geomorphology, hydrology, earth science and environmental science, as well as river practitioners who use geomorphic understandings to guide scientific and/or management applications.

The primary focus of Kirstie and Gary's research and teaching entails the use of geomorphic principles as a tool with which to develop coherent scientific understandings of river systems, and the application of these understandings in management practice. Kirstie and Gary are co-developers of the River Styles(r) Framework and Short Course that is widely used in river management, decision-making and training.

Additional resources for this book can be found at: [...]
Filling a niche in the geomorphology teaching market, this introductory book is built around a 12 week course in fluvial geomorphology.

'Reading the landscape' entails making sense of what a riverscape looks like, how it works, how it has evolved over time, and how alterations to one part of a catchment may have secondary consequences elsewhere, over different timeframes. These place-based field analyses are framed within their topographic, climatic and environmental context. Issues and principles presented in the first part of this book provide foundational understandings that underpin the approach to reading the landscape that is presented in the second half of the book. In reading the landscape, detective-style investigations and interpretations are tied to theoretical and conceptual principles to generate catchment-specific analyses of river character, behaviour and evolution, including responses to human disturbance.

This book has been constructed as an introductory text on river landscapes, providing a bridge and/or companion to quantitatively-framed or modelled approaches to landscape analysis that are addressed elsewhere. Key principles outlined in the book emphasise the importance of complexity, contingency and emergence in interpreting the character, behaviour and evolution of any given system.

The target audience is second and third year undergraduate students in geomorphology, hydrology, earth science and environmental science, as well as river practitioners who use geomorphic understandings to guide scientific and/or management applications.

The primary focus of Kirstie and Gary's research and teaching entails the use of geomorphic principles as a tool with which to develop coherent scientific understandings of river systems, and the application of these understandings in management practice. Kirstie and Gary are co-developers of the River Styles(r) Framework and Short Course that is widely used in river management, decision-making and training.

Additional resources for this book can be found at: [...]
Inhaltsverzeichnis
Preface xi

Acknowledgements xiv

1 Geomorphic analysis of river systems: an approach to reading the landscape 1

Introduction 1

How is geomorphology useful? 2

Geomorphic analysis of river systems: our approach to reading the landscape 3

Key messages from this chapter 7

2 Key concepts in river geomorphology 9

Introduction 9

Spatial considerations in reading the landscape 9

Catchment linkages and (dis)connectivity 14

Conceptualisation of time 17

Differentiating behaviour from change 21

Disturbance events 22

Magnitude-frequency relationships in river systems 23

River sensitivity and resilience 25

Catchment-specific analysis of river systems: combining spatial and temporal concepts 26

Conclusion 27

Key messages from this chapter 27

3 Catchment-scale controls on river geomorphology 29

Introduction: what is a catchment? 29

Process zones in catchments: sediment source, transfer and accumulation zones 29

Longitudinal profiles of rivers 31

Geomorphic transitions along river longitudinal profi les 32

Catchment morphometrics as controls on river character and behaviour 34

Geologic controls on drainage network form, and river character and behaviour 37

The influence of catchment configuration upon flow and sediment flux 41

Conclusion 42

Key messages from this chapter 42

4 Catchment hydrology 44

Introduction: what is hydrology? 44

The hydrological cycle 44

Operation of the hydrological cycle 45

Runoff generation 47

Groundwater flows 49

Catchment-scale runoff and discharge generation models 50

Channel initiation 51

Gully and channel formation 51

Flow regimes of perennial, intermittent and ephemeral rivers 53

Discharge and the magnitude/frequency of flow in river systems 54

Flood stages and hydrographs 56

Analysis of hydrograph shape 58

Discharge measurement 59

Flow frequency 60

Flow variability 61

Conclusion 62

Key messages from this chapter 62

5 Impelling and resisting forces in river systems 65

Introduction 65

Impelling and resisting forces and Lane's balance of erosion and deposition in channels 65

Mechanics of fluid flow 67

Impelling forces in river channels 68

Resisting forces in channels 70

Vegetation and wood as resistance elements in river systems 72

Manning's n as a unifying roughness parameter 75

The balance of impelling and resisting forces along longitudinal profiles 77

Conclusion 79

Key messages from this chapter 79

6 Sediment movement and deposition in river systems 81

Introduction 81

Grain size (sediment calibre) and definitions of bedload, mixed load and suspended load in rivers 81

Phases of sediment movement along rivers: the Hjulström diagram 84

Entrainment of sediment in river channels 85

Transport of sediment in river channels 88

Material properties that affect sediment movement in river systems 93

Deposition in river systems 102

Interpreting sediment sequences as a tool to read the landscape 104

Conclusion 114

Key messages from this chapter 114

7 Channel geometry 116

Introduction 116

Bed and bank processes that influence channel shape 117

Channel shape: putting the bed and banks together 124
Details
Erscheinungsjahr: 2012
Fachbereich: Geologie
Genre: Geowissenschaften
Rubrik: Naturwissenschaften & Technik
Medium: Taschenbuch
Seiten: 360
Inhalt: 345 S.
ISBN-13: 9781405192743
ISBN-10: 1405192747
Sprache: Englisch
Herstellernummer: 1A405192740
Autor: Fryirs, Kirstie A.
Brierley, Gary J.
Auflage: 1. Auflage
Hersteller: Wiley & Sons
Wiley-Blackwell
Maße: 18 x 212 x 279 mm
Von/Mit: Kirstie A. Fryirs (u. a.)
Erscheinungsdatum: 16.11.2012
Gewicht: 0,986 kg
preigu-id: 106365077
Inhaltsverzeichnis
Preface xi

Acknowledgements xiv

1 Geomorphic analysis of river systems: an approach to reading the landscape 1

Introduction 1

How is geomorphology useful? 2

Geomorphic analysis of river systems: our approach to reading the landscape 3

Key messages from this chapter 7

2 Key concepts in river geomorphology 9

Introduction 9

Spatial considerations in reading the landscape 9

Catchment linkages and (dis)connectivity 14

Conceptualisation of time 17

Differentiating behaviour from change 21

Disturbance events 22

Magnitude-frequency relationships in river systems 23

River sensitivity and resilience 25

Catchment-specific analysis of river systems: combining spatial and temporal concepts 26

Conclusion 27

Key messages from this chapter 27

3 Catchment-scale controls on river geomorphology 29

Introduction: what is a catchment? 29

Process zones in catchments: sediment source, transfer and accumulation zones 29

Longitudinal profiles of rivers 31

Geomorphic transitions along river longitudinal profi les 32

Catchment morphometrics as controls on river character and behaviour 34

Geologic controls on drainage network form, and river character and behaviour 37

The influence of catchment configuration upon flow and sediment flux 41

Conclusion 42

Key messages from this chapter 42

4 Catchment hydrology 44

Introduction: what is hydrology? 44

The hydrological cycle 44

Operation of the hydrological cycle 45

Runoff generation 47

Groundwater flows 49

Catchment-scale runoff and discharge generation models 50

Channel initiation 51

Gully and channel formation 51

Flow regimes of perennial, intermittent and ephemeral rivers 53

Discharge and the magnitude/frequency of flow in river systems 54

Flood stages and hydrographs 56

Analysis of hydrograph shape 58

Discharge measurement 59

Flow frequency 60

Flow variability 61

Conclusion 62

Key messages from this chapter 62

5 Impelling and resisting forces in river systems 65

Introduction 65

Impelling and resisting forces and Lane's balance of erosion and deposition in channels 65

Mechanics of fluid flow 67

Impelling forces in river channels 68

Resisting forces in channels 70

Vegetation and wood as resistance elements in river systems 72

Manning's n as a unifying roughness parameter 75

The balance of impelling and resisting forces along longitudinal profiles 77

Conclusion 79

Key messages from this chapter 79

6 Sediment movement and deposition in river systems 81

Introduction 81

Grain size (sediment calibre) and definitions of bedload, mixed load and suspended load in rivers 81

Phases of sediment movement along rivers: the Hjulström diagram 84

Entrainment of sediment in river channels 85

Transport of sediment in river channels 88

Material properties that affect sediment movement in river systems 93

Deposition in river systems 102

Interpreting sediment sequences as a tool to read the landscape 104

Conclusion 114

Key messages from this chapter 114

7 Channel geometry 116

Introduction 116

Bed and bank processes that influence channel shape 117

Channel shape: putting the bed and banks together 124
Details
Erscheinungsjahr: 2012
Fachbereich: Geologie
Genre: Geowissenschaften
Rubrik: Naturwissenschaften & Technik
Medium: Taschenbuch
Seiten: 360
Inhalt: 345 S.
ISBN-13: 9781405192743
ISBN-10: 1405192747
Sprache: Englisch
Herstellernummer: 1A405192740
Autor: Fryirs, Kirstie A.
Brierley, Gary J.
Auflage: 1. Auflage
Hersteller: Wiley & Sons
Wiley-Blackwell
Maße: 18 x 212 x 279 mm
Von/Mit: Kirstie A. Fryirs (u. a.)
Erscheinungsdatum: 16.11.2012
Gewicht: 0,986 kg
preigu-id: 106365077
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