ALBERT

Note: TABLE OF CONTENTS FOREWORD PREFACE INTRODUCTION SECTION 1: GENERAL PAPERS Case Study of a Grounded Jam; Restigouche River, New Brunswick / by S. Beltaos and B.C. Burrell Water Balance and Geochemistry Studies in a Tundra Watershed, District of Keewatin, Northwest Territories / by G.G. Bursey, T.W.D. Edwards and S.K. Frape River Icing Mounds: a Winter Water Source on the Eastern North Slope of Alaska / by E.F. Chacho, C.M. Collins, A.J. Delaney and S.A. Arcone Geochemical Evolution of Water in a Continental High Boreal Wetland Basin: Preliminary Results / by D. Craig A Physical Model of Ice Overthn.ist during the Break-Up of Intact River-Ice Covers / by M.N. Demuth and T.D. Prowse Seasonal Changes in the Hydrochemistry of Land Drainage: Colour Lake Catchment, Axel Heiberg Island, N.W.T. / by M. English, S. Schiff, M. Ecclestone, W.P. Adams, M. Hinton, L. Pezzutto, R. Elgood, C. Allan and D. Pierson Shape, Length and Flow· Conditions of Conduits at South Cascade Glacier, Washington State, U.S.A. / by A.G. Fountain CO2-Rich Ground Waters of the Flat River Valley, N.W.T. / by S.M. Hamilton, F.A. Michel and C.W. Jefferson Regional Snow Ablation in the Alaskan Arctic / by L.D. Hinzman, D.L. Kane and R.E. Giec Regionalization of Low Flows in Yukon Territory / by J.R. Janowicz Discharge Regimes of a Glacierized Basin, Slims River, Yukon / by P.G. Johnson Pulses in Glacier Discharge: Indicators of the Internal Drainage System of Glaciers / by P.G. Johnson Drainage of an Ice-Dammed Lake, Kaskawulsh Glacier Basin, Yukon / by J.N. Kasper and P.G. Johnson On Areal Distribution. of Snowcover in a Mountainous Area / by A. Killingtveit and K. Sand Hydrogeochemical Aspects of Two Selected Sites in a Fringe Zone of Discontinuous Permafrost / by Y.T.J. Kwong, D. Craig and M. Griffin Ice-Cover Growth and Freeze-Out of Solutes in a Mackenzie Delta Lake / by L.F.W. Lesack, P. Marsh and R.E. Hecky Hydrological Processes in a Small Catchment Containing a Perennial Snowbank, Melville Island, N.W.T. / by A.G. Lewkowicz and K.L. Young On Modelling Surface Meltwater Discharge from Arctic and Alpine Glaciers / by D.S. Munro A High Arctic Occurrence of Seasonal Frost Mounds / by W.H. Pollard Relationships between Snow Chemistry and Blowing Snow: Initial Findings / by J.W. Pomeroy, T.D. Davies and M. Tranter Peatlands of the Lake Melville Coastal Plain, Labrador / by J.S. Price, D.A. Maloney and F.G. Downey Constraints on the Origin of Acidity in Colour Lake, Axel Heiberg Island (79°25'N) / by S. Schiff, M. English, M. Ecclestone, R. Elgood, M. Hinton and L. Pezzutto Longitudinal Dispersion in the Ice-Covered Athabasca River / by G. Van Der Vinne and D. Andres Economic Impact of River Ice Jams in Canada / by G. Van Der Vinne, T.D. Prowse and D. Andres Estimation of Mass-Balance and Run-Off Component of Urumqi Glacier No. I from Water-Balance Analysis / by Z. Yang SECTION 2: MODELLING Interactive Modelling of Cold Regions Watersheds with SSARR / by E.A. Cassell and T. Pangburn Estimates of Evaporation in the Yukon and Northwest Territories / by J. Haas A Basin Water-Storage Model to Forecast Columbia River Discharge / by W. Tangborn Preliminary Findings from Experiments on Frazil and Anchor Ice in a Circular Flume / by G. Tsang and B. Trapp On Computer Simulation of Ice Motion in Rivers / by O.G. Vinogradov, A. Springer and P. Wierzba SECTION 3: OTHER CONTRIBUTIONS Transformation of Heavy Metals under Tidal Flows in the Severnaya Dvina Estuary / by V.F. Brekhovskikh, A.N. Malutin and M.A. Mordasov Northern River: BOD-DO Model / by V.F. Brekhovskikh and G.V. Volpian Water Storage in Alpine Glaciers (Abstract) / by M.M. Brugman Snowmelt Infiltration into Frozen Soil at Sites in the Discontinuous Permafrost Zone Near Mayo, Yukon Territory / by C.R. Bum Use of Periphyton Indices as a Biological Measure of Water Quality in Small Rivers / by E.A. Goncharevich Yukon and Northwest Territories Ground-Water Data Base / by P. Hardisty, V. Schilder, T. Dabrowski and J. Wells Some Aspects of Glacier Hydrology in China / by X. Hu and Z. Yang Modelled Estimates of Changes in the Water Balance of Forested Northern River Basins / by Yu.G. Motovilov and N.A. Nazarov Study of Surface Water Quality in the Northern Region Subject to Pollution / by A.N. Shammasov Response of Riverine and Lacustrine Biocenoses to Human Impact / by N.S. Zolotareva and M.A. Mordasov APPENDIX A: LIST OF PARTICIPANTS

Note: TABLE OF CONTENTS FOREWORD PREFACE LIST OF FIGURES LIST OF TABLES 1. NORTHERN HYDROLOGY: AN OVERVIEW 1.1. Introduction 1.2. Definition of "North" 1.2.1. Physical North 1.2.1.1. Polar Circles 1.2.1.2. Temperature 1.2.1.3. Snow/Ice Covers 1.2.1.4. Frozen Ground 1.2.1.5. Vegetation 1.2.1.6. Run-Off Direction 1.2.1.7. Composite Definition 1.2.1.8. Guideline Definition 1.3. Natural Landscape, Climate and Hydrology 1.3.1. General Landscape 1.3.2. Hydroclimatic Characteristics 1.3 .2.1. Precipitation/Snowcover 1.3.2.2. Drainage/Run-Off 1.3.2.3. Surface Storage 1.3.2.4. Permafrost 1.3.2.5. Ground Water 1.3.2.6. Evaporation/Evapotranspiration 1.3.2.7. Freshwater Ice Cover 1.3.2.8. Data-Collection Networks 1.4. Hydrological Classifications 1.4.1. Church (1974) Classification 1.4.1.1. Arctic-Nival 1.4.1.2. Subarctic-Nival 1.4.1.3. Proglacial 1.4.1.4. Muskeg 1.4.2. Network Classification 1.5. Development and Water Use 1.5.1. Historical Resource Development 1.5.2. Present Resources 1.5.2.1. Hydro-Power 1.5.2.2. Diversions 1.5.2.3. Mining 1.5.2.4. Oil and Gas 1.6. Evolving Issues 1.6.1. Northem Pollution 1.6.2. Global Change Effects 1.6.2.1. Precipitation/Snow/Glaciers 1.6.2.2. Floating Ice 1.6.2.3. Permafrost 1.6.2.4. Other 1.6.3. Monitoring Global Change 1.7. Reflections 2. SNOW HYDROLOGY 2.1. Introduction 2.1.1. Basic Processes 2.1.1.1. Atmospheric Processes 2.1.1.2. Snowcover Formation 2.1.1.3. Snowmelt Run-Off Processes 2.1.1.4. Snowcover Chemistry 2.1.2. Geographical Variations 2.1.2.1. Snowfall 2.1.2.2. Snowcover 2.1.2.3. Nival Streamflow Regimes 2.1.3. Relationship to Other Hydrological Variables 2.2. Historical Background 2.2.1. Snowfall 2.2.2. Snowcover Properties 2.2.3. Snowmelt Run-Off 2.3. Current Research 2.3.1. Blowing Snow 2.3.2. Meltwater Infiltration 2.3.3. Water Flux Through Cold Snowcovers 2.3.4. Remote Sensing 2.3.5. Snow Chemistry 2.3.6. Snow/Ground Interface Temperature 2.3.7. Snow Radiative Properties 2.4. Future Research Needs 2.4.1. Snowfall 2.4.2. Snowcover 2.4.3. Snowmelt 2.4.4. Snowmelt Run-Off 2.4.5. Removal of Solutes from Melting Snowcovers 3. PERMAFROST HYDROLOGY 3.1. Introduction 3.2. Historical Background 3.2.1. Streamflow Studies 3.2.2. Water-Balance Studies 3.2.3. Hillslope Hydrological Studies 3.2.4. Studies of Lake and Wetland Hydrology 3.3. Recent Trends 3.4. Current Research 3 .4.1. Coupling Snowmelt, Infiltration and Soil Moisture 3.4.2. Hydrological Modelling 3.5. Future Research Needs 3.5.1. Regional Hydrology 3.5.2. Climatic Change and Permafrost Hydrology 3.5.2.1. Application of Spatial Analogues 3.5.2.2. Application of Climatic Variability Analogues 3.5.2.3. Use of Simulation Models 4. GROUND-WATER HYDROLOGY 4.1. Introduction 4.1.1. Permafrost 4.1.2. Properties of Frozen Ground and Permafrost 4.1.2.1. Ice and Water Contents 4.1.2.2. Hydraulic Conductivity 4.1.3. Effects on Water Chemistry 4.1.3.1. Low Temperatures 4.1.3.2. Permafrost 4.2. Aquifers in Permafrost Areas 4.2.1. Position Relative to Permafrost 4.2.2. Suprapermafrost Aquifers 4.2.2.1. Subtype I Aquifers 4.2.2.2. Subtype II and III Aquifers 4.2.2.3. Chemical composition of suprapermafrost water 4.2.3. Intrapermafrost Aquifers 4.2.3.1. Open Taliks 4.2.3.2. Lateral Taliks 4.2.3.3. Isolated Taliks 4.2.3.4. Chemical Composition of Intrapermafrost Water 4.2.4. Subpermafrost Aquifers 4.2.4.1. Unconsolidated Deposits 4.2.4.2. Sedimentary Bedrock 4.2.4.3. Karst 4.2.4.4. Igneous and Metamorphic Terrain 4.2.4.5. Chemical Composition of Subpermafrost Water 4.3. Ground-Water Hydrology 4.3.1. Comparison with Non-Permafrost Areas 4.3.2. Infiltration and Ground-Water Recharge 4.3.3. Lateral Movement of Ground Water 4.3.4. Discharge of Ground Water 4.3.4.1. Springs 4.3.4.2. Base Flow 4.3.4.3. Icings 4.3.4.4. Ground-Water Discharge Rates from Icing Volumes 4.3.4.5. Chemical Composition of Icings and Meltwater 4.3.5. Importance of Ground Water 4.3.5.1. Fisheries 4.3.5.2. Vegetation 4.3.5.3. Water Supply 4.3.5.4. Recreation and Space Heating 4.4. Historical Background 4.4.1. Pre-1970 Situation 4.4.2. Recent Advances 4.4.3. Agencies Involved in Recent Research 4.4.4. Incentives for Recent Research 4.5. Current Research 4.6. Future Research Needs 4.6.1. Major Unknowns 4.6.2. Subjects Requiring Research 4.6.3. Future Incentives for Ground-Water Research 4.6.4. Major Impediments 5. HYDROLOGY OF FLOATING ICE 5.1. Introduction 5.2. Ice Processes on Rivers and Lakes: an Overview 5.3. Historical Background 5.3.1. Floods and High Stages 5.3.2. Low Flow 5.3.3. Flow Duration 5.3.4. Flow Measurement 5.4. Current Research 5.4.1. Ice Jams, Break-Up and Freeze-Up 5.4.2. Low Flows 5.4.3. Flow Duration 5.4.4. Flow Measurement 5.5. Future Research Needs 5.5.1. Ice Jams, Break-Up and Freeze-Up 5.5.2. Low Flows 5.5.3. Continuous Simulation 5.5.4. Flow Measurement 5.6. New Research Approaches 5.7. Conclusion 5.8. Acknowledgements 6. GLACIER HYDROLOGY 6.1. Introduction 6.2. Glacier Hydrology: an Overview 6.2.1. Run-Off 6.2.2. Local Variability in Climatic Inputs 6.2.3. Regional Variability 6.2.4. Temporal Variability in Climatic Inputs 6.2.5. Glacier Outburst Floods 6.2.6. Distribution and Characteristics of Canadian Glaciers 6.3. Process and Regional Examples 6.3.1. Typical Run-off Components from a Glacierized Catchment 6.3.2. Western Cordilleran Example - Peyto Glacier 6.3.3.1. Basin Description 6.3.3.2. Meteorological Inputs and Snow-Line Movement 6.3.3.3. Internal Hydrology of the Glacier 6.3.3.4. Specific Yield within the Basin 6.3.3.5. The Resultant Hydrographs 6.3.3.6. Detailed Interrelationship (1970/74) 6.3.4. High-Arctic Example - White Glacier 6.4. A History of Glacier Hydrology Studies 6.4.1. Studies in the Western Cordillera 6.4.2. The Arctic lslands 6.4.3. Studies in the Yukon 6.4.4. Studies in Labrador 6.4.5. The International Hydrological Decade 6.4.6. International Hydrological Programme 6.5. The Main Achievements of Hydrology Studies in Glacierized Basins 6.5.1. Basic Description of Resources 6.5.2. Achievements in Glacier Mass Balance 6.5.3. Achievements in Glacier-Run-Off Studies 6.5.3.1. Meltwater Generation 6.5.3.2. Glacier Outburst Floods 6.5.3.3. Models of Basin Run-Off 6.5.4. Achievements in Surveying and Remote Sensing 6.6. The Future 7. WATER-QUALITY RESEARCH 7.1. Introduction 7 .2. Historical Background 7.2.1. Activities Prior to 1969 7.2.2. Overview ofN.W.T. Water-Quality Network Data 7.2.3. Mackenzie River Basin 7.2.4. Yukon River Basin 7.2.5. Limnological Research Activities near Resolute, Cornwallis Island and at Saqvaqjuac 7.3. Current Research - Long-Range Atmospheric Transport and Deposition 7.4. Future Research Needs 7.5. Acknowledgements 8. THE REGIONAL ENERGY BALANCE 8.1. Introduction 8.1.1. Basic Processes 8.1.2. Regional Variations 8.1.3. Relationship to Other Hydrological Variables 8.1.4. Importance to the Northern Environment 8.2. Historical Background 8.2.1. Subarctic 8.2.2. Arctic Tundra 8.2.3. Glacierized Basins 8.3. Current Research 8.4. Future Research Needs 9. REGIONAL HYDROLOGY 9.1. Introduction 9.2. Hydrological Regions 9.2.1. Shawinigan Engineering Studies 9.2.2 Acres Consulting Services Ltd 9 .2.2.1. Annual Yield 9.2.2.2. Low Flow 9.2.2.3. Floods 9.2.3. Joint DOE-DIAND Studies 9.2.4. 1985-86 IWD Network Evaluation in Western and Northern Region 9.2.5 The Maekenzie River Basin Flow Model 9.3. River Elements in the Northern Hydrological Cycle 9.3.1. Snowfall Components 9.3.2. Ice Proeesses and Northem Streamflow 9.3.2.1. The Freeze-Up 9.3.2.2. Midwinter Flows 9.3.2.3. Streamflow in the Annual Break-Up 9.4. Northern Streamflow Data Collection 9.5. Conclusions 10. WATER MANAGEMENT NORTH OF 60° 10.1. lntroduction 10.2. Legislative Framework 10.3. Water Boards 10.4. Licensing and Authorization 10.4.1. Lieensing 10.4.2. Authorization 10.5. Enforcement 10.6. Data Collection 10.6.1. Water Quantity 10.6.2. Water Quality 10.6.3. Preeipitation 10.7. Planning 10.7.1. Comprehensive Planning 10.7.2. Integrated Planning 10.8. Major Ma

Note: Preface 1. Characteristics of volcanic rifted margins Martin A. Menzies, Simon L. Klemperer, Cynthia J. Ebinger, and Joel Baker 2. Crust and upper mantle structure in East Africa: Implications for the origin of Cenozoic rifting and volcanism and the formation of magmatic rifted margins Andrew A. Nyblade 3. Development of the Lebombo rifted volcanic margin of southeast Africa M.K. Watkeys 4. Extension and uplift of the northern Rio Grande Rift: Evidence from ⁴⁰Ar/³⁹Ar geochronology from the Sangre de Cristo Mountains, south-central Colorado and northern New Mexico Daniel P. Miggins, Ren A. Thompson, Charles L. Pillmore, Lawrence W. Snee, and Charles R. Stern 5. Lithospheric mantle beneath Arabia: A Pan-African protolith modified by the Afar and older plumes, rather than a source for continental flood volcanism? Joel Baker, Gilles Chazot, Martin A. Menzies, and Matthew Thirlwall 6. Petrogenesis of the Late Cretaceous tholeiitic magmatism in the passive margins of northeastern Madagascar Leone Melluso, Vincenzo Morra, Pietro Brotzu, Massimo D'Antonio, and Lucia Bennio 7. Silicic volcanism: An undervalued component of large igneous provinces and volcanic rifted margins Scott E. Bryan, Teal R. Riley, Dougal A. Jerram, Christopher J. Stephens, and Philip T Leat 8. Volcanology and fades architecture of flood basalts Dougal A. Jerram 9. East Greenland coast-parallel dike swarm and its role in continental breakup Martin Bromann Klausen and Hans Christian Larsen 10. Crustal architecture of South Atlantic volcanic margins W.U. Mohriak, B.R. Rosendahl, J.P. Turner, and S.C. Valente 11. Volcanic passive margin of Namibia: A potential fields perspective B. Corner, J. Cartwright, and R. Swart 12. Petrophysical modeling of high seismic velocity crust at the Namibian volcanic margin R.B. Trumbull, S.V. Sobolev, and K. Bauer