ALBERT

Note: Contents: I The mechanical properties of rocks. - II The theory of elastic waves. - III Observational seismology. - IV The theory of the figures of the earth and moon. - V The figures of the earth and moon. Discussion of observations. - VI Stress-differences in the earth. - VII The variation of latitude and the bodily tide. - VIII Tidal friction. - IX The age of the earth. - X The thermal history of the earth. - XI The origin of the earth's surface features. - XII Special problems. - Appendices. - A Critical stress-difference. - B The straining of a uniform sphere. - C Castigliano's principle. - D Cooling of a sphere. - E Long-period tides. - Notes. - Bibliography. - Index.

Note: CONTENTS Page Preface Summary Introduction Temperature correction factors Crushing strength Tensile strength · Shear strength Torsional shear strength Work of disaggregation of snow Angle of internal friction and apparent unit cohesion Discussion of results References

Note: CONTENTS Introduction I. Physiographic description of study area II. Structure of the marginal zone of the ice cap III. Geomorphologic processes IV. Recent glacial history of the ice margin

Note: CONTENTS Page Preface Summary Introduction Ring tensile strength Flexural strength of small beams Flexural strength of inplace beams Crushing strength Shear strength Discussion of results References

Note: CONTENTS Preface Summary Introduction Experimental Snow samples Procedure Experimental results Fraction 150-300 µ Fraction 0-150 µ Mixture of fractions Conclusions

Note: CONTENTS Preface Summary Chapter I. Introduction Greenland Glaciers and stratigraphy The Greenland ice sheet - a rock formation Region of investigation Chapter II. Methods of investigation Stratigraphy Accumulation measurements Work program at pit stations General description of pits Temperature Hardness Density, stratigraphy, and grain size Accuracy of density measurements Photography Core drilling Air permeability and mechanical tests Elevation measurements Barometric altimetry Transit leveling Chapter III. Basic concepts and definitions Summer melt Soaking Complete soaking Localized percolation Stability Diagenetic facies Chapter IV. Presentation and discussion of results Grain size and morphology Grain size Morphology Temperature Seasonal variation and mean annual temperature Thermal effect of an open pit Constancy of climate Facies in terms of temperature data Hardness Continuity of strata Effect of wind Increase in R with depth below snow surface Facies in terms of hardness data Density Depth vs density data Depth vs load data Attempts to formulate depth vs density Facies in terms of density data Glacier facies - a classification of glaciers Chapter V. Stratigraphy and accumulation Stratigraphy Stratigraphic interpretation at station 1-0 Correlation between stratigraphic and meteorological records Accumulation Integrated qepth-density curves Measurement of accumulation on surface marker plates Pole-marker measurements Stratigraphic correlation Selection of a reference datum in the annual stratigraphic sequence Correlation across the traverse Effects of topography Chapter VI. Meteorological and climatological implications Winds Precipitation Annual heat exchange References Appendix A: Stratigraphy, meteorology and glaciology Appendix B: Logistics and development of the research program Appendix C: Tables

Note: CONTENTS Preface Summary Introduction Procedure Preparation of test plots Measurements of ice and gravel surfaces Composition of the gravel covering Results Sorting in a smooth layer of sandy gravel over an uneven ice surface Sorting in a uniform layer of sandy gravel over depressions in the ice surface Sorting in a uniform layer of sandy gravel over a uniform ice surface Sorting in a non-uniform layer of sandy gravel over a uniform ice surface Discussion and recommendations Conclusions References

Note: N.F. entfällt ab 57.2000. - Volltext auch als Teil einer Datenbank verfügbar , Ersch. ab 2000 in engl. Sprache mit dt. Hauptsacht.

Note: TABLE OF CONTENTS I INTRODUCTION II SUMMARY OF METHODS OF GROUND WATER DETECTION A. Geophysical Methods Gravimetric Method Magnetic Method Seismic Method Electrical Resistivity Method Electrical, Radioactive and Temperature Logging Methods B. Tracer Methods Dyes as Ground Water Tracers Tracers Detected by Chemical Determinations Radioactive Tracers III LABORATORY AND FIELD STUDIES OF GROUND WATER TRACERS Ion Exchange in Soils Lysimeter Studies of Fluorescein, Chloride and Iodine-131 Comparison of Stable and Radioactive Calcium Tritium Studies Injection Well Studies of Fluorescein, Dextrose, and Iodine-131 IV CONCLUSIONS AND RECOMMENDATIONS A. Geophysical Methods B. Tracer Methods V ABSTRACT OF LITERATURE PERTAINING TO GROUND WATER DETECTION A. Geophysical Methods B . Tracer Methods

Note: Table of Contents: GENERAL INTRODUCTION. - Figures. - North Arm of Great Slave Lake, showing positions of present and former Fort Rae sites. - Site plan of station. - METEOROLOGY. - Introduction. - PART 1. - TEMPERATURE. - 1. Instruments, exposures, and methods. - 2. Annual variation of temperature. - 3. Diurnal variation of temperature. - 4. The effect of cloud and wind upon temperature. - 5. Temperature and wind direction. - 6. Non-periodic temperature changes. - PART 2. - PRESSURE. - 1. Instruments and methods. - 2. Annual variation of pressure. - 3. Diurnal variation of pressure. - 4. Non-periodic pressure changes. - 5. Pressure waves. - 6. Pressure surges. - PART 3. - SURFACE WIND. - 1. Instruments, exposures, and methods. - 2. Annual variation of wind velocity. - 3. Diurnal variation of wind velocity. - 4. Frequency of winds of different velocities. - 5. Frequency of winds of different directions and of calms. - 6. SE. and NW. wind at Fort Rae. - 7. Velocity of winds from different directions. - 8. Distribution of wind velocities from different directions. - 9. Highest instantaneous wind speeds and extreme hourly winds. - 10. The effect of the NW. and SE. wind upon the meteorological elements. - 11. The resultant winds. - 12. Diurnal inequalitites of N. and E. components of resultant winds. - PART 4. - UPPER WINDS. - 1. General remarks. - 2. Monthly and seasonal mean wind velocities at different heights. - 3. Frequency of wind from various directions in the upper atmosphere. - 4. Distribution oof wind at different levels irrespective of direction. - 5. Mean wind velocities from different directions at different levels. - 6. Resultant winds in the upper atmosphere. - 7. The direction of the wind in the upper atmosphere when the wind at the surface is from stated directions. - PART 5. - UPPER AIR TEMPERATURE AND PRESSURE. - PART 6. - CLOUDS. - 1. General. - 2. Percentage frequency of different could forms. - 3. Cloud amount: percentage frequency of each cloud amount. - 4. Annual variation of cloud. - 5. Diurnal variation of cloud. - PART 7. - PRECIPITATION. - 1. Instruments and methods. - 2. Annual variation of precipitation. - 3. Snow crystals. - PART 8. - RELATIVE HUMIDITY OF THE AIR. - 1. General. - 2. Mean monthly values of humidity during the winter months. - 3. Annual variation of the relative humidity. - 4. Diurnal variation of the relative humidity. - PART 9. - SUNSHINE AND RADIATION. - PART 10. - HALO PHENOMENA. - PART 11. - VISIBILITY. - PART 12. - THE METEOGRAPH DIAGRAMS. - TERRESTRIAL MAGNETISM AND AURORA. - 1. Magnetograph chamber. - 2. Temperature insulation of the magnetograph hut. - 3. Temperature variation within the recording chamber. - 4. Recording instruments. - 5. ILLUMINATION. - 6. TIMING. - 7. CONTROL HUT AND CONTROL INSTRUMENTS USED. - 8. CONTROL OBSERVATIONS OF H. - 9. CONTROL OBSERVATIONS OF D. - 10. AZIMUTH MARK. - 11. CONTROL OBSERVATIONS OF INCLINATION. - 12. PROCEDURE IN CONTROL OBSERVATIONS. - 13. SUMMARISED RESULTS OF CONTROL OBSERVATIONS. - 14. SCALE VALUES OF DECLINATION MAGNETOGRAPHS. - 15. SCALE VALUES OF H AND Z MAGNETOGRAPHS. - 16. EFFECT ON SCALE VALUES OF GREAT SEASONAL RANGE OF HUMIDITY WITHIN THE RECORDING CHAMBER. - 17. TEMPERATURE COEFFICIENTS OF H AND Z VARIOMETERS. - 18. METHODS OF DETERMINING TEMPERATURE COEFFICIENTS OF VARIOMETERS. - 19. ASSIGNMENT OF H BASE LINE VALUES DURING PERIODS OF LARGE TEMPERATURE COEFFICIENT OF VARIOMETER. - 20. ASSIGNMENT OF H BASE LINE VALUES IN GENERAL. - 21. Z BASE LINE VALUES DURING PERIOD OF LARGE TEMPERATURE COEFFICIENT OF VARIOMETER. - 22. Z BASE LINE VALUES IN GENERAL. - 23. USE OF AUXILIARY H AND Z MAGNETOGRAPHS. - 24. D BASE LINE VALUES. - 25. MONTHLY MEAN VALUES: THE ANNUAL VARIATION AND SECULAR CHANGE. - 26. MONTHLY AND SEASONAL VALUES OF N, E, T, I, AND A. - 27. COMPARISON OBSERVATIONS AT 1882-83 (OLD FORT) STATION. - 28. DETERMINATION OF H AT OLD FORT RAE. - 29. DETERMINATION OF D AT OLD FORT RAE. - 30. DETERMINATION OF I AT OLD FORT RAE. - 31. SECULAR CHANGE AT OLD FORT RAE. - 32. LONGITUDE OF OLD FORT RAE SITE. - 33. AZIMUTH OF FIXED MARK AT OLD FORT RAE. - 34. RELATIONSRIPS BETWEEN ALL, QUIET, AND DISTURBED DAY VALUES AT THE MAIN STATION. - 35. NON-CYCLIC CHANGE. - 36. NON-CYCLIC CHANGE ON QUIET DAYS. - 37. EXAMINATION OF THE NEGATIVE NON-CYCLIC CHANGE ON q DAYS. - 38. NON-CYCLIC CHANGE ON DISTURBED DAYS. - 39. OVERLAPPING DAY MEANS. - 40. CHARACTERISTICS OF CURRENT SYSTEM NECESSARY TO PRODUCE H AND Z DEPARTURES FROM MEAN VALUES. - 41. POSITION OF CURRENT SYSTEM AND DIRECTION OF FLOW DEDUCED FROM MEAN H AND Z DEPARTURES AT OTHER STATIONS ON d DAYS. - 42. CONCLUSIONS REGARDING CURRENT CHARACTERISTICS ON DISTURBED DAYS. - 43. CURRENT SYSTEM ON q DAYS. - 44. CONSIDERATIONS UNDERLYING APPLICATION OF NON-CYCLIC CHANGE AND USE OF GREENWICH DAYS IN FORMATION OF DIURNAL INEQUALITIES. - 45. SOME FEATURES OF THE DIURNAL VARIATIONS. - 46. DIURNAL INEQUALITIES FOR SELECTED q AND d DAYS. - 47. MEAN ANNUAL VECTOR DIAGRAMS. - 48. SEASONAL VECTOR. DIAGRAMS. - 49. VECTOR DIAGRAMS ON d' AND q' DAYS. - 50. THE TOTAL FIELD VECTOR T AND ITS POSITIONAL CO-ORDINATES. - 51. SEASONAL MEAN VALUES OF T AND p IN DISTURBANCE. - 52. DIURNAL VARIATION OF T AND p IN DISTURBANCE. - 53. SOME DIURNALLY VARYING CHARACTERISTICS OF THE CURRENT SYSTEM PRODUCING DISTURBANCE. - 54. CHANGE IN POSITION OF DISTURBING CURRENT WITH SEASON. - 55 EFFECT OF INCREASED SCALE OF DISTURBANCE ON THE CURRENT SYSTEM. - 56. T AND p ON QUIET DAYS. - 57 RANGE AND AVERAGE DEPARTURES OF DIURNAL INEQUALITIES. - 58. COMPARISON OF INEQUALITY RANGE AND AVERAGE DEPARTURE AT FORT RAE WITH THOSE AT OTHER STATIONS. - 59. COMPARISON WITH 1882-83 INEQUALITY RANGES. - 60. ESTIMATE OF ELEVATION OF DISTURBING CURRENT SYSTEM FROM IR AND AD. - 61. HARMONIC ANALYSIS OF REGULAR DIURNAL VARIATIONS. - (i) 24-hour component. - (ii) 12-hour component. - (iii) 8-hour wave. - (iv) 6-hour wave. - 62. HARMONIC ANALYSIS OF MEAN INEQUALITIES FOR q' AND d' DAYS. - 63. ABSOLUTE DAILY RANGE: R. - 64. COMPARISON WITH 1882-83 RANGES. - 65. COMPARISON WITH R AT OTHER STATIONS. - 66. RELATION OF DISTURBANCE TO MAGNETIC LATITUDE. - 67. FREQUENCY DISTRIBUTION OF R. - 68. DIURNAL DISTRIBUTION OF TIMES OF INCIDENCE OF MAXIMA AND MINIMA. - 69. DIURNAL INCIDENCE OF EXTREME VALUES IN Z. - 70. INCIDENCE OF EXTREME VALUES IN H AND D. - 71. DAILY RANGE PRODUCTS HRH AND ZRz. - 72. HOURLY RANGES AND RANGE PRODUCTS. - 73. FREQUENCY DISTRIBUTION OF HOURLY RANGES IN REPRESENTATIVE MONTHS. - 74. RELATIONSHIPS AMONG THE HOURLY RANGES. - 75. RELATIVE MAGNITUDE OF PERTURBATIONS IN H AND Z. - 76. THE RATIO p = CR/Cr. - 77. SEASONAL DISTRIBUTION OF Cr AND ITS CONSTITUENTS. - 78. RANK ORDER OF DAYS, ON BASIS OF CR AND Cr: COMPARISON WITH INTERNATIONAL SELECTION OF q AND d DAYS. - 79. EFFECT OF USE OF GREENWICH DAY ON SELECTION OF q AND d DAYS. - 80. DIURNAL VARIATION OF IRREGULAR DISTURBANCE (Di). - 81. RELATION OF Di TO TIME DIFFERENTIALS OF FORCE VECTORS. - 82. CHARACTERISTICS OF D1. - 83. Di ON q' AND d' DAYS. - 84. HARMONIC ANALYSIS OF Di. - 85. LOCAL CHARACTER FIGURES. - 86. RANK ORDER OF MONTHS IN DISTURBANCE BY VARIOUS CRITERIA. - 87. INTERDIURNAL VARIABILITY OF H AND z: MONTHLY U ACTIVITY MEASURES. - 88. INTERDIURNAL VARIABILITY ON q' AND d' DAYS. - 89. COMPARISON OF COMPOSITE RANK ORDER OF MONTHS WITH INTERDIURNAL VARIABILITY MEASURES. - 90. DISTINCTIVE FEATURES OF DISTURBANCE. - 91. N DISTURBANCES. - 92. M DISTURBANCES. - 93. OSCILLATORY DISTURBANCE. - 94. RECOVERY MOVEMENTS. - 95. SEASONAL AND DIURNAL DISTRIBUTION OF N AND M MOVEMENTS. - 96. REPETITION OF ISOLATED PERTURBATIONS. - NON-INSTRUMENTAL AURORAL OBSERVATIONS. - 97. THE SCOPE OF THE OBSERVATIONS. - 98. ESTIMATION OF AURORAL INTENSITY. - 99. AURORAL "ACTIVITY" FIGURES. - 100. THE AURORAL LOG. - 101. SEASONAL DISTRIBUTION OF AURORAL FREQUENCY. - 102. AURORAL ACTIVITY OF THE YEAR: GENERAL NOTE. - 103. QUARTER-HOUR AURORAL INTENSITY FIGURES. - 104. MONTHLY DISTRIBUTION OF BRIGHT AURORA. - 105. DIURNAL

Note: Enth.: Introduction -- Pt. 2. Union of South Africa from Olifants River to Mossel Bay. With an appendix on conditions at Saldanha Bay, Cape Town and Simonstown -- Pt. 3. Union of South Africa from Mossel Bay to East London.With an appendix on conditions oat Mossel Bay and Port Elizabeth -- Pt. 4. Union of South Africa from East London to Kosi Bay.With an appendix on conditions at East London and Durban -- Pt. 5. Portuguese East Africa (Mocambique) and Mocambique Channel -- Pt. 5a. Madagascar. With an appendix on conditions at Mayotte, Diégo Suarez, Nossi Bé and Tamatave

Note: CONTENTS Preface Summary Introduction Principle of measuring the visco-elastic nature of snow and ice by the vibration method Experimental method for determination of visco-elastic properties of snow and ice Visco-elastic properties of tunnel ice Elastic properties of snow samples from the deep pit Elastic properties of core samples obtained by drilling Elastic properties of snow near the ice-cap surface Vertical variation of Young's modulus near the surface Wind-packed snow Peter snow Relation between Young's modulus and density of snow Relation between Young's modulus and density over the range from surface snow to ice Supplementary experiments on the elastic nature of snow and ice at Site 2 Anisotropy of Peter snow Age hardening Temperature dependence of Young's modulus of core ice Viscosity measurement of snow and ice in Greenland Further experiments on the elastic nature of tunnel ice Temperature dependence of Young's modulus Frequency dependence of Young's modulus Further experiments on the viscous nature of tunnel ice Temperature dependence of loss factor Activation energy Frequency dependence of loss factor and viscosity Relation between viscosity and density Conclusions References Appendix: Experimental data

Note: CONTENTS Preface Summary Introduction Definition of whiteout Scope of this study Instrumentation and observations Location of project: Fog particle measurements Atmospheric humidity measurements Visibility measurements Air temperature measurements Radiation measurements Atmospheric nuclei Observations of fog whiteout Conditions prior to onset of whiteout Conditions at time of arrival and during whiteout Micro-structure of fog whiteout Analysis of moisture balance during two selected cases Synoptic situation for case 1 Synoptic situation for case 2 Computations Attempts at fog whiteout dispersal References Appendix A - Freezing nuclei observations Appendix B - Absolute humidity gradient data

Note: CONTENTS Preface Summary Introduction Types of ice Experiments Results Creep curves Flow law References

Note: CONTENTS Preface Summary Introduction Measurements and results Tunnel North-south trench East-west trench Deep pit Theoretical development Sorge's Law Deformation of acylindrical tunnel in a viscous compressible medium Discussion Tunnel Trenches Deep pit References Appendix

Note: CONTENTS Preface Introduction and statement of the problem Solution of the boundary value problems for simply supported boundaries Semi-infinite plate Wedge-shaped plate Rectangular corner plate Infinite strip Semi-infinite strip Rectangular plate Remarks on the problem of arbitrary load distribution References Appendix A Appendix B

Note: CONTENTS Preface Summary Introduction Experimental Apparatus Materials Procedure Experimental results References

Note: CONTENTS Page Preface Summary Introduction Apparatus and method Experimental results and discussion Historical background Range of Darcy's law Effect of porosity on the permeability of snow Bader's equation Conclusion References Appendix I. Snow conversion table: Density to absolute porosity Appendix II. Effect on permeability of varying porosity in the sample Porosity varies with length Porosity varies with cross section

Note: CONTENTS Preface Summary Introduction Climatic parameters which may affect arctic snow-cover density Results of study Regional variations in snow-cover density Prediction of average monthly snow-cover density in the arctic from air temperature and wind velocity Comparison of observed snow-cover density with density computed from the nomographs Relation between snow-cover temperature and air temperature Relation between hardness and density of the snow cover References

Note: CONTENTS Preface Summary Introduction Experimental General Apparatus Procedure Theoretical relations Additive theory Relationship between tests run for constant change in density and tests for constant time Results and discussion Group I experiments Group II experiments Stress dependence for group II tests Variability Time dependence Activation energy Relations between creep rates under different stress conditions Density dependence Lateral stress for confined-side tests Conclusions References

Note: CONTENTS Page Preface Summary Introduction Methods of preparation Measurements of structural properties Measurements on homogeneity and isotropy Results Structure data Orientation of c-axes Analysis of the distribution of the orientation of c-axes Preferred directions of the fabric Distribution of grain cross sections Size and shape of the counting areas Interrelations of the structure, data Conclusions Recommendations for further studies References

Note: CONTENTS Preface Summary Introduction Derivation of mean annual air temperature data Annual accumulation References

Note: CONTENTS I. Introduction II. Instrumentation Recording of data III. Results Global radiation Albedo of snow Diffuse sky radiation Effect of clouds on radiation Atmospheric and terrestrial radiation Effect of low sun angle on measured radiation Global radiation gradient Atmospheric transmission coefficient Heat balance of snow cover Applied use of solar energy References. Appendix

Note: CONTENTS Preface Summary Introduction Results at Site 2 Discussion References

Note: Table of Contents: GENERAL INTRODUCTION. - Figures. - Map of Spitzbergen. - Site plan of Sveagruvan. - TERRESTRIAL MAGNETISM. - 1. Magnetograph chamber. - 2. Temperature Variations in the magnetograph chamber. - 3. Variometers. - 4. Instruments for absolute measurements. - 5. Absolute observations of the magnetic elements. - 6. Measurements of curves, scale values. Temperature correction. Base values. - 7. Results of curve measurements. Monthly mean values. - 8. Yearly variation and secular change. - 9. Monthly and seasonal mean values of N, E, T, I, and A. - 10. Comparative measurements at the old 1882-83 Polar Year station at Cape Thordsen. - 11. Determination of horizontal force at Cape Thordsen. - 12. Determination of inclination at old station Cape Thordsen. - 13. Determination of declination at Cape Thordsen. - 14. Secular variation at Cape Thordsen. - 15. Relation between all, quiet, and disturbed day values of H, D, and Z at Sveagruvan. - 16. Current system necessary to produce H and Z departures from mean values. - 17. Current system on disturbed days. - 18. Daily variations. - 19. Mean annual vector diagrams. - 20. The total field vector R and its positional co-ordinates. - 21. Diurnal variation of R and ϱ in disturbance. - 22. Some diurnally varying characteristics of the current system producing disturbances. - 23. Harmonic analysis of regular diurnal variations. - . - 24. Absolute daily range. - PLATE 1. - a) Former small storehouse adapted for use as magnetograph hut. - b) Absolute hut in winter. - c) Arrangements inside magnetograph hut. Quick-run magnetograph in the foreground. Standard magnetograph in the background. - d) Arrangement of instruments in the absolute hut. Magnetic theodolite on the central pillar to the left. Dover inclinatorium on the pillar to the right. The oscillation observations were made on the lower pillar. - e) The 1882-83 station at Cape Thordsen. In the foreground the site of the old magnetic variation house. In the background the old observatory building. - f) The magnetic theodolite mounted on the reconstructed pillar used for absolute observations in 1882- 83.

Note: CONTENTS Preface Summary Introduction Strength Crushing strength Ring tensile strength Flexural strength Static modulus of elasticity Dynamic modulus of elasticity Density of tunnel and ramp ice Tunnel temperature measurements Crystal size, bubble size, and ice fabrics Deformation measurements Discussion of strength test results References

Note: CONTENTS Preface Summary Introduction Apparatus Specimens Experimental procedures and results Analysis of the data Discussion References

Note: TABLE OF CONTENTS PREFACE LIST OF TABLES LIST OF ILLUSTRATIONS INTRODUCTION Chapter I. APPLICATION OF ISOLINES FOR DEPICTING ASPECTS OF THE SNOW COVER Visual Problems Use of a simplified base map Other solutions Substantive Problems Observational errors Sampling errors Bias error Effect of reliability of data on isolines Conclusion The ''reasoned distribution'' Effects of substantive problems Conclusion II. DEVELOPMENT OF OTHER MEASURES, INDICES, AND METHODS FOR DEPICTING SNOW COVER CONDITIONS Examples of Possible Normal Indices of Snow Cover Average snow depth at end of the maximum month Average monthly snow depths by superimposed or located line graphs Time aspects Snowfall Selected Statistical Parameters of a Particular Value Extreme values Frequency values Measures of variability Conclusion III. SNOW REGIONS: AN APPROACH TO MAPPING SNOW COVER Snow Region Concept Descriptions of Snow Regions 1. Pacific Coast and Coastal Valley Region 2. The Mountain Zone 3. Great Plains Region 4. The Mackenzie-Manitoba Region 5. Upper Ontario Region 6. Northern Great Lakes-St. Lawrence Region 7. Labrador Region 8. The Northern Arctic Region 9. Ungava-Baffinland Region Conclusions IV. CURRENT SNOW DATA MAPS Introduction Ground Observer's Code Suggested code for "Ground Observer's Snow Report" Comments Symbols for a comprehensive station model Air Observation Code Comments Station Model for Aircraft Snow Observations A Simplified Snow Observation Report . Introduction Proposed code and symbols for station model based on Simplified Snow Observation Report Conclusion Chapter V. MAPPING SNOW DENSITY Introduction Limitations of Data for Mapping Available data Reliability of the data Natural variations in density Snow Density Maps of Eastern Canada Statistical Investigation of Density: Eastern Canada Test for area differences Estimating regional trends in density: Orthogonal polynomials Regional density changes during the winter Conclusions: Statistical investigations Estimating Snow Density from Meteorological Data Relation of density to wind speed and temperature Application of Dmitrieva's equation Conclusion VI. CONCLUSION Snow Cover Maps: Small Scale Compilations of Various Aspects of Their Parameters Preparation of Synoptic Current Snow Data Maps Snow Density Research Investigation of Drift and Erosional Surfaces Initiation of Systematic Collection and Recording of Snow Data Internationally Research Reports Based on Existing Literature .

Note: AUFSÄTZE --- BOBEK HANS: Der Eisrückgang im östlichen Klagenfurter Becken, S. 3 --- BOBEK HANS: Forschungen in Persien 1958/59, S. 381 --- BODZENTA ERICH: Innsbruck. Eine sozial-ökologische Studie, S. 823 --- LECHLEITNER HERWIG: Stadtentwicklung und Stadtplanung in Leoben, S. 202 --- LEITNER WILHELM: Die Verteilung der Bevölkerung nach natürlichen Landschaften in der Steiermark, S. 72 --- LICHTENBERGER ELISABETH: Der Rückzug des Würmgletschers im mittleren Klagenfurter Becken und Krappfeld, S. 63 --- PASCHINGER HERBERT: Studienreise nach Südspanien im März 1959, S. 388 --- RUNGALDIER RANDOLF: Südtirols Sonderstellung im Alpenraum, S. 291 --- SPREITZER HANS: Fußflächen im Kilikischen Ala Dag im Taurus, S. 183 --- SPREITZER HANS: Albrecht Pencks Wirken in Wien, S. 375 --- SUTER KARL: Die Palmgärten des Mzab, S. 63 --- WICHE KONRAD: Geomorphologische Studien in Südostspanien (Provinz Murcia), S. 389 --- WINKLER ERHART: Die Tabakwirtschaft von Samsun, S. 361 --- WISSMANN HERMANN VON: Die rezente und quartäre Vergletscherung des Yülungschan, S. 165 --- BERICHTE UND KLEINE MITTEILUNGEN --- BERNLEITHNER E.: Raumordnungsplan Marchfeld, S. 243 --- HOLZMANN G.: Die japanischen Siedler in Brasilien, S. 401 --- LAUTENSACH H.: Eine Landeskunde der Kanaren, S. 898 --- LENDL E.: Ein unbekannter Humboldtbrief, S. 241 --- MORAWETZ S.: Die Muren des Unwetters vom 12. August 1958 im Murtal zwischen Übelstein und Mixnitz (Steiermark), S. 86 --- MORAWETZ S.: Geomorphologische Bemerkungen zur Unwetterkatastrophe vom August 1958 im Rennfeldgebiet (Steiermark), S. 396 --- SLEZAK F.: Neue geographische Monographie in Südosteuropa, S. 96 --- ZEITLINGER J.: Beobachtungen über unterirdische Erosion in Verwitterungslehm, S. 94 --- SCHULGEOGRAPHIE --- BANNERT B.: Bildauswertung im Geographieunterricht, S. 248 --- BREU J. : Probleme der Schreibung südosteuropäischer Ortsnamen in österreichischen Mittelschulatlanten, S. 97 --- CONSTANTINI O.: Die Elektrizitätsgewinnung im Bereiche der Wolga, S. 123 --- LANGBEIN O.: Zur Ortsnamen-Schreibung, S. 403 --- LANGBEIN O.: Sowjetische Volkszählung 1959, S. 406 --- PRILLINGER F.: Das Geographielehrbuch, sein Inhalt und seine Verwendung, S. 131 --- TRIMMEL H.: Die wirtschaftliche Entwicklung Spaniens im letzten Jahrzehnt, S. 117 --- GEOGRAPHISCHE INFORMATIONEN --- GRÜLL J.: Die Eisenerze am Orinoco, ein Faktor im wirtschaftlichen Strukturwandel Argentiniens, S. 135 --- GRÜLL J.: Afrika auf dem Wege zu politischer Neuordnung, S. 413 --- RIECK W.: Entwicklung und Ausbau des neuen chinesischen Eisenbahnnetzes, S. 266 --- Kurznachrichten, S. 140, 274, 430 --- BUCHBESPRECHUNGEN, S. 153, 282, 430 --- GESELLSCHAFTSNACHRICHTEN, S. 289, 466

Note: CONTENTS Preface Summary Introduction Method Procedure Test results Tests conducted Data and calculations Discussion of results References Appendix A. Drawings of apparatus Appendix B. Load-deflection and time-deflection curves for snow beams of various densities

Note: CONTENTS Preface Summary Introduction Test apparatus and experimental procedures Experimental results Conclusions References

Note: CONTENTS Introduction Experimental Analysis The shear of glaciers Tunnel closure Conclusions References

Note: CONTENTS Page Preface Summary Introduction Experimental Materials Apparatus and technique Preparation of snow fractions Experimental results Aging of snow cylinders Compressive strength as a function of particle size Mixture of fractions Influence of gases on the compressive strength of snow Discussion References

Note: Teils mit Jg.-Zählung , In kyrill. Schr

Note: Table of Contents: COMPOSITION OF THE ATMOSPHERE. - The Composition of Atmospheric Air / by E. Glueckauf. - RADIATION. - Solar Radiant Energy and Its Modification by the Earth and Its Atmosphere / by Sigmund Fritz. - Long-Wave Radiation / by Fritz Möller. - Actinometric Measurements / by Anders Ångström. - METEOROLOGICAL OPTICS - General Meteorological Optics / by Hans Neuberger. - Polarization of Skylight / by Zdeněk Sekera. - Visibility in Meteorology / by W. E. Knowles Middleton. - ATMOSPHERIC ELECTRICITY. - Universal Aspects of Atmospheric Electricity / by O. H. Gish. - Ions in the Atmosphere / by G. R. Wait and W. D. Parkinson. - Precipitation Electricity / by Ross Gunn. - The Lightning Discharge / by J. H. Hagenguth. - Instruments and Methods for the Measurement of Atmospheric Electricity / by H. Israël. - Radioactivity of the Atmosphere / by H. Israël. - CLOUD PHYSICS. - On the Physics of Clouds and Precipitation / by Henry G. Houghton. - Nuclei of Atmospheric Condensation / by Christian Junge. - The Physics of Ice Clouds and Mixed Clouds / by F. H. Ludlam. - Thermodynamics of Clouds / by Fritz Möller. - The Formation of Ice Crystals / by Ukichiro Nakaya. - Snow and Its Relationship to Experimental Meteorology / by Vincent J. Schaefer. - Relation of Artificial Cloud-Modification to the Production of Precipitation / by Richard D. Coons and Ross Gunn. - THE UPPER ATMOSPHERE. - General Aspects of Upper Atmospheric Physics / by S. K. Mitra. - Photochemical Processes in the Upper Atmosphere and Resultant Composition / by Sidney Chapman. - Ozone in the Atmosphere by F. W. Paul Götz. - Radiative Temperature Changes in the Ozone Layer / by Richard A. Craig. - Temperatures and Pressures in the Upper Atmosphere / by Homer E. Newell, Jr. - Water Vapour in the Upper Air / by G. M. B. Dobson and A. W. Brewer. - Diffusion in the Upper Atmosphere / by Heinz Lettau. - The Ionosphere / by S. L. Seaton. - Night-Sky Radiations from the Upper Atmosphere / by E. O. Hulburt. - Aurorae and Magnetic Storms / by L. Harang. - Meteors as Probes of the Upper Atmosphere / by Fred L. Whipple. - Sound Propagation in the Atmosphere / by B. Gutenberg. - COSMICAL METEOROLOGY. - Solar Energy Variations As a Possible Cause of Anomalous Weather Changes / by Richard A. Craig and H. C. Willett. - The Atmospheres of the Other Planets / by S. L. Hess and H. A. Panofsky. - DYNAMICS OF THE ATMOSPHERE. - The Perturbation Equations in Meteorology / by B. Haurwitz. - The Solution of Nonlinear Meteorological Problems by the Method of Characteristics / by John C. Freeman. - Hydrodynamic Instability / by Jacques M. Van Mieghem. - Stability Properties of Large-Scale Atmospheric Disturbances / by R. Fjørtoft. - The Quantitative Theory of Cyclone Development / by E. T. Eady. - Dynamic Forecasting by Numerical Process / by J. G. Charney. - Energy Equations / by James E. Miller. - Atmospheric Turbulence and Diffusion / by O. G. Sutton. - Atmospheric Tides and Oscillations / by Sydney Chapman. - Application of the Thermodynamics of Open Systems to Meteorology / by Jacques M. Van Mieghem. - THE GENERAL CIRCULATION. - The Physical Basis for the General Circulation / by Victor P. Starr. - Observational Studies of General Circulation Patterns / by Jerome Namias and Philip F. Clapp. - Applications of Energy Principles to the General Circulation / by Victor P. Starr. - MECHANICS OF PRESSURE SYSTEMS. - Extratropical Cyclones / by J. Bjerknes. - The Aerology of Extratropical Disturbances / by E. Palmén. - Anticyclones / by H. Wexler. - Mechanism of Pressure Change / by James M. Austin. - Large-Scale Vertical Velocity and Divergence / by H. A. Panofsky. - The Instability Line / by J. R. Fulks. - LOCAL CIRCULATIONS. - Local Winds / by Friedrich Defant. - Tornadoes and Related Phenomena / by Edward M. Brooks. - Thunderstorms / by Horace R. Byers. - Cumulus Convection and Entrainment / by James M. Austin. - OBSERVATIONS AND ANALYSIS. - World Weather Network / by Athelstan F. Spilhaus. - Models and Techniques of Synoptic Representation / by John C. Bellamy. - Meteorological Analysis in the Middle Latitudes / by V. J. Oliver and M. B. Oliver. - WEATHER FORECASTING. - The Forecast Problem / by H. C. Willett. - Short-Range Weather Forecasting / by Gordon E. Dunn. - A Procedure of Short-Range Weather Forecasting / by Robert C. Bundgaard. - Objective Weather Forecasting / by R. A. Allen and E. M. Vernon. - General Aspects of Extended-Range Forecasting / by Jerome Namias. - Extended-Range Weather Forecasting / by Franz Baur. - Extended-Range Forecasting by Weather Types / by Robert D. Elliott. - Verification of Weather Forecasts / by Glenn W. Brier and Roger A. Allen. - Application of Statistical Methods to Weather Forecasting / by George P. Wadsworth. - TROPICAL METEOROLOGY. - Tropical Meteorology / by C. E. Palmer. - Equatorial Meteorology / by A. Grimes. - Tropical Cyclones / by Gordon E. Dunn. - Aerology of Tropical Storms / by Herbert Riehl. - POLAR METEOROLOGY. - Antarctic Atmospheric Circulation / by Arnold Court. - Arctic Meteorology / by Herbert G. Dorsey, Jr. - Some Climatological Problems of the Arctic and Sub-Arctic / by F. Kenneth Hare. - CLIMATOLOGY. - Climate - The Synthesis of Weather / by C. S. Durst. - Applied Climatology / by Helmut E. Landsberg and Woodrow C. Jacobs. - Microclimatology / by Rudolf Geiger. - Geological and Historical Aspects of Climatic Change / by C. E. P. Brooks. - Climatic Implications of Glacier Research / by Richard Foster Flint. - Tree-Ring Indices of Rainfall, Temperature, and River Flow / by Edmund Schulman. - HYDROMETEOROLOGY. - Hydrometeorology in the United States / by Robert D. Fletcher. - The Hydrologic Cycle and Its Relation to Meteorology - River Forecasting / by Ray K. Linsley. - MARINE METEOROLOGY. - Large-Scale Aspects of Energy Transformation over the Oceans / by Woodrow C. Jacobs. - Evaporation from the Oceans / by H. U. Sverdrup. - Forecasting Ocean Waves / by W. H. Munk and R. S. Arthur. - Ocean Waves as a Meteorological Tool / by W. H. Munk. - BIOLOGICAL AND CHEMICAL METEOROLOGY. - Aerobiology / by Woodrow C. Jacobs. - Physical Aspects of Human Bioclimatology / by Konrad J. K. Buettner. - Some Problems of Atmospheric Chemistry / by H. Cauer. - ATMOSPHERIC POLLUTION. - Atmospheric Pollution / by E. Wendell Hewson. - CLOUDS, FOG, AND AIRCRAFT ICING. - The Classification of Cloud Forms / by Wallace E. Howell. - The Use of Clouds in Forecasting / by Charles F. Brooks. - Fog / by Joseph J. George. - Physical and Operational Aspects of Aircraft Icing / by Lewis A. Rodert. - Meteorological Aspects of Aircraft Icing / by William Lewis. - METEOROLOGICAL INSTRUMENTS. - Instruments and Techniques for Meteorological Measurements / by Michael Ference, Jr. - Aircraft Meteorological Instruments / by Alan C. Bemis. - LABORATORY INVESTIGATIONS. - Experimental Analogies to Atmospheric Motions / by Dave Fultz. - Model Techniques in Meteorological Research / by Hunter Rouse. - Experimental Cloud Formation / by Sir David Brunt. - RADIOMETEOROLOGY. - Radar Storm Observation / by Myron G. H. Ligda. - Theory and Observation of Radar Storm Detection / by Raymond Wexler. - Meteorological Aspects of Propagation Problems / by H. G. Booker. - Sferics / by R. C. Wanta. - MICROSEISMS. - Observations and Theory of Microseisms / by B. Gutenberg. - Practical Application of Microseisms to Forecasting / by James B. Macelwane, S. J. CORRIGENDA. - INDEX.

Note: Contents Foreword Synopsis Introduction Authority Purpose and scope SIPRE organization and activities Cryological problems and military end points Present state of knowledge General Introduction Terminology and classification Snow and ice Introduction Physical properties and geometry Density and water equivalent Water holding or storage capacity of snow Water transmission through snow Bound water Crystallography and metamorphism Porosity and permeability Mechanical properties Elasto-plastic properties Friction Strength Hardness Electromagnetic properties Dielectric constants Conductivity Magnetic properties Piezoelectric and pyroelectric effects Triboelectricity Freezing potential Thermodynamic properties Thermal properties Radiation Phase relations Engineering problems Snow and ice removal Snow compaction Snow draft control Trafficability Temporary structures Snow melt and runoff Maps Frozen ground and permafrost Introduction Frost action Theory of frost action Cyclic freezing and thawing Manifestations of frost actions Frost heave on freezing Reduction in load-carrying capacity on thawing Soil movements on slopes Ground properties affecting or affected by frost action Composition, grain size, and grain-size distribution Soil-moisture-movement properties Thermal properties Structure of unfrozen ground Structure of frozen ground Strength of frozen ground Freezing point Ground conditions affecting or affected by frost action Density Degree of saturation Interrelation of climate, position, vegetation, and soil Frost phenomena Climate Position Vegetation Engineering problems Excavation and replacement Subsurface drainage Base courses Insulation courses Surface icing and its control Trafficability Building foundations Maps Current related research Introduction Military cryological research in United States and Canada Non-military cryological research in the Western World Research needed Introduction Subjects for fundamental research Subjects for applied research

Note: Contents Introduction Use of the deep-freeze as a cold laboratory Growing single crystals Creep tests Conclusions References cited

Note: Contents I. Introduction, by H. Bader II. Excavation of trenches and tunnels, by R.W. Waterhouse III. Excavation of deep pit, by J.K. Landauer IV. Trench covering, framing, and instrumentation, by R.W. Waterhouse V. The snow house, by R.W. Waterhouse VI. Load measurements in the N-S trench, by R.W. Waterhouse VII. Deformation measurements, by J.K. Landauer VIII. Distance changes on the ice cap, by B.L. Hansen and H. Bader IX. Annual accumulation, by H. Bader X. Snow density and snow load in deep pit, by J.K. Landauer XI. Air permeability of snow from deep pit, by J.A. Bender XII. Viscosity of snow from deep pit, by J.K. Landauer XIII. Crushing strength of snow from deep pit, by T.R. Butkovich XIV. Shear strength of snow from deep pit, by T.R. Butkovich XV. Tensiel strength of snow from deep pit, by T.R. Butkovich XVI. Angle of internal friction of snow from deep pit, by T.R. Butkovich XVII. Snow temperatures, by J.K. Landauer