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The physics of glaciers /
Explains the physical principles underlying the behaviour of glaciers. 50% new material.
| Clasificación: | Libro Electrónico |
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| Autor principal: | |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Oxford ; New York :
Pergamon Press,
1981.
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| Edición: | 2nd ed. |
| Colección: | Pergamon international library of science, technology, engineering, and social studies.
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| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- Front Cover; The Physics of Glaciers; Copyright Page; Table of Contents; Preface to Second Edition; Preface to First Edition; Chapter 1. Introduction; Further Reading; Chapter 2. The Transformation of Snow to Ice; INTRODUCTION; SNOW, FIRN, AND ICE; ZONES IN A GLACIER; DISTRIBUTION OF ZONES; HOW SNOW TURNS INTO ICE IN A DRY SNOW ZONE; DEPTH HOAR; TRANSFORMATION WHEN THERE IS MELTWATER; VARIATION OF DENSITY WITH DEPTH; DISAPPEARANCE OF AIR BUBBLES; RATE OF CRYSTAL GROWTH; Chapter 3. Structure and Deformation of Ice; INTRODUCTION; STRUCTURE OF THE ICE CRYSTAL; DEFORMATION OF A SINGLE ICE CRYSTAL.
- DEFORMATION OF POLYCRYSTALLINE ICEFLOW LAW OF POLYCRYSTALLINE ICE; THE GENERALIZED FLOW LAW; RELEVANCE OF LABORATORY TESTS TO GLACIER FLOW; VALUES OF FLOW LAW PARAMETERS; PERFECT PLASTICITY; Chapter 4. The Mass Balance of a Glacier; INTRODUCTION; DEFINITIONS; DIRECT MEASUREMENT OF NET BALANCE; PHOTOGRAMMETRIC METHOD ; HYDROLOGICAL METHOD; RECONNAISSANCE METHODS; RESULTS; MASS BALANCE OF LARGE ICE SHEETS; Chapter 5. Glacier Measurement Techniques; INTRODUCTION; SOME GENERAL ASPECTS OF GLACIER FLOW.
- MEASUREMENT OF SURFACE VELOCITY AND STRAIN RATEMEASUREMENT OF VELOCITY AND STRAIN RATE AT DEPTH; MEASUREMENT OF ICE THICKNESS CHANGES; RADIO-ECHO SOUNDING; GLACIER SEISMOLOGY; ICE DRILLS; Chapter 6. Glacier Flow I: Ice Deformation; INTRODUCTION; BASIC EQUATIONS; LAMINAR FLOW; TESTS OF THEORETICAL PREDICTIONS; DETERMINATION OF LONGITUDINAL STRAIN RATE; EFFECT OF LONGITUDINAL STRESS COMPONENT; EFFECTS OF SIDES OF VALLEY: THEORY; EFFECT OF SIDES OF VALLEY: OBSERVATIONS; BOREHOLE EXPERIMENTS; FINITE ELEMENT METHODS; Further Reading; Chapter 7. Glacier Flow II: Basal Sliding; INTRODUCTION.
- WEERTMAN'S THEORYCOMPARISON WITH OBSERVATIONS; THEORY OF SLIDING WITHOUT CAVITATION; DISCUSSION OF ASSUMPTIONS; COMPARISON WITH OBSERVATIONS; SEPARATION OF ICE FROM BEDROCK; COMPARISON WITH OBSERVATIONS; BOREHOLE OBSERVATIONS; OUTLOOK; Further Reading; Chapter 8. Hydrology of Glaciers; INTRODUCTION; OBSERVATIONS OF WATER FLOW THROUGH GLACIERS; WATER PRESSURE IN GLACIERS; DISCUSSION OF OBSERVATIONS; INTERGRANULAR PERMEABILITY OF TEMPERATE ICE; THEORY OF WATER FLOW IN TEMPERATE GLACIERS; WATER FLOW AT THE GLACIER BED; JOKULHLAUPS; WATER IN NON-TEMPERATE GLACIERS; Further Reading.
- Chapter 9. Flow of Ice Sheets and Ice ShelvesINTRODUCTION; PROFILES OF ICE SHEETS; DISCUSSION OF ASSUMPTIONS; ICE VELOCITIES AND TRAVEL TIMES; RECONSTRUCTION OF PAST ICE SHEETS; RELATION BETWEEN SURFACE AND BEDROCK TOPOGRAPHY; RATE OF GROWTH AND DECAY OF ICE SHEETS; THERMAL CONVECTION IN THE ANTARCTIC ICE SHEET; ICE SHELVES; FLOW OF UNCONFINED ICE SHELF; ICE SHELF IN PARALLEL-SIDED BAY; ICE SHELVES IN DIVERGING AND CONVERGING BAYS; OTHER FEATURES OF ICE SHELF FLOW; STABILITY OF THE ANTARCTIC ICE SHEET; OTHER APPLICATIONS OF FLOW THEORY; Further Reading.