Glacier-Permafrost Interactions

Richard I. Waller 지음

Wiley 2024년 05월 07일 출간

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Glacier-Permafrost Interactions A systematic exploration of the interactions between glaciers and permafrost In Glacier-Permafrost Interactions, experienced glaciologist Richard I. Waller delivers a comprehensive discussion of the interactions between glaciers and permafrost. The book is highly relevant to contemporary debates regarding ongoing recession of glaciers and the degradation of permafrost in the face of global warming. By integrating modern-era observations with findings from Quaternary science, this book demonstrates how glaciers and permafrost can interact and behave as an integrated system. This summary of the current thinking and emerging research on glacier-permafrost interaction also provides: Comprehensive discussions of permafrost in modern and ancient glacial environments A focused review of the distinctive characteristics of glaciers found in permafrost environments An integrated overview of the nature and impacts of glacier-permafrost interactions on the hydrology and dynamic behaviour of glaciers and their landscape expression A survey of current research efforts and future directions in the field Lying at the boundary between a research monograph and an advanced textbook, Glacier-Permafrost Interactions contributes to the future development of this rapidly evolving field by incorporating new approaches and ideas while still offering a summary of the current state of knowledge. It is perfect for advanced undergraduate students, postgraduate students, researchers, and professionals with an interest in polar and alpine environments.

목차

Author Biography x Preface xi Acknowledgements xiii 1 Introduction 1 1.1 Research Context and Academic Background 1 1.2 Overview of the Significance of Glacier Permafrost Interactions 3 1.3 Explanation of the Book Structure 6 References 7 2 Permafrost in Modern and Ancient Glacial Environments 9 2.1 Introduction 9 2.2 Thermal and Physical Properties 9 2.2.1 Defining Characteristics 9 2.2.2 Water in Permafrost 12 2.2.3 Ground Ice 15 2.3 The Formation and Preservation of Permafrost 19 2.3.1 Subaerial Permafrost 19 2.3.2 Subglacial Permafrost 21 2.4 The Distribution and Spatial Extent of Permafrost 26 2.4.1 The Modern Day and Last Glacial Maximum Distribution of Permafrost 26 2.4.2 The Spatial Distribution of Contemporary Permafrost 27 2.4.3 Temporal Changes in the Extent of Subglacial Permafrost 34 2.5 Permafrost Rheology 37 2.5.1 The Rheology of Ice, Sediment and Ice Sediment Mixtures 37 2.5.2 The Rheology of Subglacial Permafrost 44 2.6 Summary 45 References 46 3 Glaciers and Glacial Processes in Permafrost Environments 53 3.1 Introduction 53 3.2 Thermal Regimes of Glaciers and Permafrost 54 3.3 Basal Boundary Conditions and Processes 60 3.3.1 Introduction 60 3.3.2 Rigid-Bed Glaciers and Basal Sliding 62 3.3.3 Soft-Bed Glaciers and Subglacial Sediment Deformation 63 3.4 ‘Frozen Beds’ and Traditional Glaciological Models 65 3.4.1 Frozen Beds and the Operation of Basal Processes 65 3.4.2 Thermal Controls on the Processes of Subglacial Erosion 67 3.5 Active Subglacial Processes at Sub-Freezing Temperatures An Emerging Paradigm? 71 3.5.1 Early Experimental Studies 71 3.5.2 Direct Observations of Basal Processes Beneath Cold-Based Glaciers 72 3.5.3 Active Erosion and Debris Ent

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저자(글) Richard I. Waller