ALBERT

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Note: P. D. Jackson, D. G. Gunn, R. C. Flint, D. Beamish, P. I. Meldrum, M. A. Lovell, P. K. Harvey, and A. Peyton: A non-contacting resistivity imaging method for characterizing whole round core while in its liner / Geological Society, London, Special Publications, 122:1-10, doi:10.1144/GSL.SP.1997.122.01.01 --- D. J. Prosser, A. Hurst, and M. R. Wilson: One-man-operable probe permeameters / Geological Society, London, Special Publications, 122:11-18, doi:10.1144/GSL.SP.1997.122.01.02 --- S. R. McDougall, A. B. Dixit, and K. S. Sorbie: Network analogues of wettability at the pore scale / Geological Society, London, Special Publications, 122:19-35, doi:10.1144/GSL.SP.1997.122.01.03 --- S. Pugliese and N. Petford: Pore-structure visualization in microdioritic enclaves / Geological Society, London, Special Publications, 122:37-46, doi:10.1144/GSL.SP.1997.122.01.04 --- Paul B. Basan, Ben D. Lowden, Peter R. Whattler, and John J. Attard: Pore-size data in petrophysics: a perspective on the measurement of pore geometry / Geological Society, London, Special Publications, 122:47-67, doi:10.1144/GSL.SP.1997.122.01.05 --- M. S. King, A. Shakeel, and N. A. Chaudhry: Acoustic wave propagation and permeability in sandstones with systems of aligned cracks / Geological Society, London, Special Publications, 122:69-85, doi:10.1144/GSL.SP.1997.122.01.06 --- Shiyu Xu, Just Doorenbos, Sue Raikes, and Roy White: A simple but powerful model for simulating elastic wave velocities in clastic Silicate rocks / Geological Society, London, Special Publications, 122:87-105, doi:10.1144/GSL.SP.1997.122.01.07 --- T. Apuani, M. S. King, C. Butenuth, and M. H. De Freitas: Measurements of the relationship between Sonic wave velocities and tensile strength in Anisotropic rock / Geological Society, London, Special Publications, 122:107-119, doi:10.1144/GSL.SP.1997.122.01.08 --- C. McCann, J. Sothcott, and S. B. Assefa: Prediction of petrophysical properties from seismic quality factor measurements / Geological Society, London, Special Publications, 122:121-130, doi:10.1144/GSL.SP.1997.122.01.09 --- Y. F. Sun and D. Goldberg: Estimation of aspect-ratio changes with pressure from seismic velocities / Geological Society, London, Special Publications, 122:131-139, doi:10.1144/GSL.SP.1997.122.01.10 --- P. K. Harvey, M. A. Lovell, J. C. Lofts, P. A. Pezard, and J. F. Bristow: Petrophysical estimation from downhole Mineralogy logs / Geological Society, London, Special Publications, 122:141-157, doi:10.1144/GSL.SP.1997.122.01.11 --- Paul F. Worthington: Petrophysical estimation of permeability as a function of scale / Geological Society, London, Special Publications, 122:159-168, doi:10.1144/GSL.SP.1997.122.01.12 --- C. A. Gonçalves, P. K. Harvey, and M. A. Lovell: Prediction of petrophysical parameter logs using a multilayer backpropagation neural network / Geological Society, London, Special Publications, 122:169-180, doi:10.1144/GSL.SP.1997.122.01.13 --- Brian P. Moss: The partitioning of petrophysical data: a review / Geological Society, London, Special Publications, 122:181-252, doi:10.1144/GSL.SP.1997.122.01.14 --- A. Revil, P. A. Pezard, and M. Darot: Electrical conductivity, spontaneous potential and ionic diffusion in porous media / Geological Society, London, Special Publications, 122:253-275, doi:10.1144/GSL.SP.1997.122.01.15 --- Brígida Ramati P. Da Rocha and Tarek M. Habashy: Fractal Geometry, porosity and complex resistivity: from rough pore interfaces to hand specimens / Geological Society, London, Special Publications, 122:277-286, doi:10.1144/GSL.SP.1997.122.01.16 --- Brígida Ramati P. Da Rocha and Tarek M. Habashy: Fractal Geometry, porosity and complex resistivity: from hand specimen to field data / Geological Society, London, Special Publications, 122:287-297, doi:10.1144/GSL.SP.1997.122.01.17 --- M. Ben Clennell: Tortuosity: a guide through the maze / Geological Society, London, Special Publications, 122:299-344, doi:10.1144/GSL.SP.1997.122.01.18 --- J. C. Lofts, J. Bedford, H. Boulton, J. A. van Doorn, and P. Jeffreys: Feature recognition and the interpretation of images acquired from horizontal wellbores / Geological Society, London, Special Publications, 122:345-365, doi:10.1144/GSL.SP.1997.122.01.19 --- D. Goldberg and Y. F. Sun: Scattering attenuation as a function of depth in the Upper Oceanic Crust / Geological Society, London, Special Publications, 122:367-375, doi:10.1144/GSL.SP.1997.122.01.20 --- N. Passas, C. Butenuth, and M. H. De Freitas: An application of the Moiré Method to a study of local strains during rock failure in tension / Geological Society, London, Special Publications, 122:377-388, doi:10.1144/GSL.SP.1997.122.01.21

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Note: Contents: Preface and Acknowledgments ; A Note to the Reader ; 1. A Great Discovery - And a Mistake ; 2. Symbolic Dynamics ; 3. Collisions and Other Singularities ; 4. Stability ; 5. KAM Theory ; Notes ; Bibliography ; Index

Note: CONTENTS: Flight plan 1996. - C130 schedule. - NGRIP 1996 Schedule. - Overview of 1996 schedule. - Camp Layout. - Buildings. - Number of field participants. - NGRIP 1996 Sub programs. - CARDS Radar test. - KMS Elevation measurements. - SITREP. - Terms of Reference during the field operation. - Accidents and Illness. - Mail to NGRIP participants. - Cargo shipments to Greenland. - Personnel transport 1996. - Booze and drugs. - Vacation in Greenland. - Shipping boxes. - Welcome to the NGRIP camp. - List of participants. - NGRIP camp load. - Kangerlussuaq and Surrounding Area. - Thule Air Base, Greenland, Base Operations. - Other useful information for Thule passengers. - Uplift 1996. - Typical specs for LC-130 and Twin Otter. - Useful data. - Coordination of C-130 in Kangerlussuaq. - Aviation weather reports. - Typical communication plan. - Summary of frequencies used in Greenland. - Phonetic alphabet. - Personal field equipment. - Map of GRIP camp. - NGRIP, Maps of one and two line set up. - NGRIP trenches. - Map of Greenland. - Map of north Greenland. - Map of ice divide north of GRIP. - Map of magnetic declination in Greenland. - Positions in Greenland. - Relevant distances and directions. - 1996 Twin Otter hours. - List of NGRIP addresses.

Note: Contents: Front Matter ; Introduction ; Reconstruction of Phase Space ; Choosing Time Delays ; Choosing the Dimension of Reconstructed Phase Space ; Invariants of the Motion ; Modeling Chaos ; Signal Separation ; Control and Chaos ; Synchronization of Chaotic Systems ; Other Example Systems ; Estimating in Chaos: Cramér-Rao Bounds ; Summary and Conclusions

Note: Contents: 1. INTRODUCTION. - 2. PARTICULAR CONCERNS AND REQUIREMENTS. - Environmental Safeguards. - Topographic Mapping. - Regional Geological and Geophysical Surveying. - Stateside Analyses. - Remote Sensing. - Core Drilling into Bedrock beneath the Ice. - New Techniques. - 3. INTERCONTINENTAL AND INTRACONTINENTAL RELATIONSIDPS. - Present Continental Margins. - Passive Continental Margins. - Active Continental Margins. - Pre-Andean Orogenic Belts. - Gondwanide (Ellsworth) Orogen. - Borchgrevink Orogen. - Ross Orogen. - Relations between East and West Antarctica. - West Antarctic Geochronology and Geophysics. - The Ross Embayment. - Surface-Wave-Dispersion Studies. - 4. ACTIVE CRUSTAL MOVEMENTS AND VOLCANICITY. - Seismicity. - Volcanicity. - Gravity Base Station Ties. - Gravity Surveys. - Establishment of Tide Stations and Bench Marks. - Nonisostatic Crustal Uplift. - 5. STUDIES OF THE LATE CENOZOIC ENVIRONMENT. - Comparative Glacial Geologic Chronologies. - Drilling beneath the Ross Ice Shelf. - Ocean Core Studies. - 6. SPECIAL GEOLOGICAL PROBLEMS. - Igneous Processes. - Jurassic Basalt. - Active Continental Margin Processes. - Paleontology. - Vertebrate Paleontology. - Invertebrate Paleontology. - Permian and Triassic Floras. - 7. ANTARCTIC MINERAL RESOURCES. - 8. PRIORITY ORDERING. - 9. SPECIAL RECOMMENDATIONS. - REFERENCES.

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.

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Note: CONTENT: Introduction / M. Latif. - Graphic & Design at the Max-Planck-Institute for Meteorology / Norbert P. Noreiks. - Atmospheric Modelling. - First results from ECHAM-5 / Erich Roeckner. - QBO experiments with MA/ECHAM4 and ECHAMS / Marco A. Giorgetta. - Using prognosed sub-grid scale cloud variability in shortwave radiation code / Georg Bäuml, Adrian Tompkins, Erich Roeckner. - Using ClearCase for ECHAMS Development / Monika Esch. - Estimation of Systematic Errors Using ECHAM in Data Assimilation Mode / Ingo Kirchner. - Atmospheric data assimilation activities at MPI-M / Andreas Rhodin, Luis Komblueh. - Software Design / Uwe Schulzweida. - Ocean and Coupled Modelling. - On the status of the new global coupled atmosphere-ocean model and applications of a limited area model to tackle regional aspects of climate and socio-economic issues / Michael Botzet. - The C-HOPE Ocean Model: Status of the Model Development / Johann Jungclaus. - Simulating Variabilty of the North Atlantic Ocean / Helmut Haak. - Taking C-HOPE's temperature / Scott Johnson. - C-HOPE simulation of the Southern Ocean/sea ice coupled system / Simon Marsland. - Land Surface and Vegetation Modelling. - Hydrological Cycle in ERA-40 and a refined surface runoff/drainage formulation based on the ARNO scheme / Stefan Hagemann. - Land Surface and Biogeochemical Modelling in Hamburg and Jena - Status, Co-operation, Outlook / Wolfgang Knorr. - Towards an improved land surface scheme in ECHAM / Reiner Schnur. - Impact of vegetation feedback on climate variability in the coupled ECHAM -land-vegetation model / Karl-Georg Schnitzler. - Impact of dynamic vegetation on the carbon cycle / Marko Scholze. - Natural Climate Variability and Anthropogenic Climate Change Intraseasonal variability in the Tropics / Stefan Liess. - Study on Monsoon Predictability with ECHAM4.5 / Y. Zhao, L. Diimenil. - Simulation of the rainfall variability in West-Africa Project ,IMPETUS" / Jürgen Bader. - Influence of SST on the NAO Variability / Holger Pohlmann. - The impact of ENSO on tropical and extratropical storms as simulated in high resolution ECHAM4 experiments / Ute Merkel. - Low-frequency variability in the tropical Indian Ocean / Astrid Baquero Bernal. - Assimilation of altimeter and temperature data for ENSO hindcasting / Sigrid Schöttle. - The heat content of the world ocean in ECHAM4/0PYC3 and observations / Katja Lohmann. - Trends in daily precipitation characteristics: transient climate change simulations with a coupled A OGCM / Vladimir Semenov and Lennart Bengtsson.

Note: Contents 1. Introductory overview 2. Selected research topics Food availability and microbial activity on the continental slope: from the Siberian shelf to the Arctic basin (Boetius, Damm, Nothig) Ecology of summer sea ice (Cieitz, Kukert, Riebesell, Rutgers v. d. Loeff, Crossmann, Dieckmann) Temperature physiology of marine invertebrates and fish (Hardewig, Sartoris, Sommer, van Dijk, Zielinski, Partner) The 'multistoried' habitat on the Antarctic sea floor (Cutt) The near-surface air flow at Neumayer Station (Handorf) Simulation of atmospheric climate processes over the Arctic (Dethloff, Rinke) Coordinated ozone soundings for determination of ozone depletion rates in the Arctic and sub-Arctic winter (Rex, van der Cathen) Sunshine Simulation (Tüg) Ice-free areas in pack ice - The Northeast Water Polynya in the Greenland Sea (Budeus, Schneider, Kattner, Hirche) Exchange of deep water across the Greenland-Iceland-Scotland sills (Beckmann, Doscher) The large-scale distribution of inorganic carbon in the Atlantic sector of the Antarctic (Hoppema, Fahrbach) Modelling the circulation under the Filchner-Ronne Ice Shelf (Determann, Cerdes, Crosfeld) Filchner-Ronne Ice Shelf Programme (FRISP) (Oerter, Mayer, Hempel, Lambrecht, Nixdorf) Plate tectonics in the Bellingshausen Sea, Southeast Pacific (Cohl, Nitsche, Miller) Small-scale structures from multibeam bathymetry in the Weddell Sea (Schenke, Kuhn) Radiolarians as a paleothermometer in the Southern Ocean - reconstruction of climatic changes (Abelmann, Brathauer, Sieger) Sibiria: Region of origin for Arctic sediments (Rachold, Hoops, Hubberten) Late and postglacial vegetation and climate history of northern Central Siberia (Hahne, Harwart) SEPAN (Sediment and Paleoclimate Data Network) (Diepenbroek, Crobe, Reinke, Schlitzer, Sieger, Siems) 3. Reports by the Scientific Sections 3.1 Oceanic and atmospheric processes in polar regions 3.2 Modelling of ocean processes and circulation 3.3 Marine physics and instrument development 3.4 The bedrock of the polar regions in the Atlantic and the surrounding continental margin 3.5 Glaciology 3.6 Marine geology 3. 7 Marine ecosystem research and ecophysiology 3.8 Biological oceanography 3.9 Ceoscientific studies in ice-margin regions 3.10 Physics and chemistry of the polar atmosphere 3.11 Sea-ice research 3.12 The oceanic carbon cycle 4. Large equipment, expeditions and land-based stations 4.1 'Polarstern' 4.2 'Victor Hensen' 4.3 Polar Aircraft 4.4 Land Expeditions 4.5 Neumayer Station 4.6 Dallmannn Laboratory 4.7 Koldewey Station 4.8 Other small stations 5. Logistics 6. International and National Cooperation 6.1 National Cooperation 6.2 International Cooperation 7. Central Facilities 7.1 Computer Centre 7.2 Libraries 7.3 Public Relations 8. Personnel Structure and Budget Trends 8.1 Staff plan 8.2 Budget 8.3 On the Situation of Women at the AWl 9. Publications 9.1 Publications of the Institute 9.2 Publications of the Staff Annex I. Staff II. Scientific Events Ill. Completed Theses and Dissertations IV 'Polarstern' Expeditions , Inhaltsverzeichnis 1. Einleitende Übersicht 2. Ausgewählte Forschungsthemen Vom sibirischen Schelf zur arktischen Tiefsee: Nahrungsverfügbarkeit und mikrobielle Aktivität am Meeresboden (Boetius, Damm, Nöthig) Zur Ökologie des sommerlichen Meereises (Gleitz, Kukert, Riebesell, Rutgers v. d. Loeff, Grossmann, Dieckmann) Temperaturphysiologie von marinen Invertebraten und Fischen (Hardewig, Sartoris, Sommer, van Dijk, Zielinski, Pörtner) Der "mehrstöckige" Lebensraum am Meeresboden der Antarktis (Gutt) Die bodennahe Luftströmung an der Neumayer-Station (Handorf) Die Simulation atmosphärischer Klimaprozesse über der Arktis (Dethloff, Rinke) Koordinierte Ozonsondierungen zur Bestimmung des Ozonabbaus im arktischen und subarktischen Winter (Rex, von der Gathen) Der Sonnenscheinsimulator (Tüg) Eisfreie Stellen im Packeis - Die Nordostwasser-Polynja in der Grönlandsee (Budeus, Schneider, Kattner, Hirche) Der Austausch von Tiefenwasser über die untermeerischen Schwellen zwischen Grönland und Schottland (Beckmann, Döscher) Die großräumige Verteilung des anorganischen Kohlenstoffs im atlantischen Sektor der Antarktis (Hoppema, Fahrbach) Modeliierung der Ozeanzirkulation unter dem Filchner-Ronne-Schelfeis (Determann, Gerdes, Grosfeld) Das Filchner- Ronne-Schelfeis-Projekt (Oerter, Mayer, Hempel, Lambrecht, Nixdorf) Die Plattentektonik des Bellingshausenmeeres (Gohl, Nitsche, Miller) Entdeckung neuer Strukturen auf dem Meeresboden des südlichen Weddellmeeres (Schenke, Kuhn) Radiolarien als Paläothermometer im Südpolarmeer (Abelmann, Brathauer, Sieger) Sibirien: Ursprungsregion arktischer Sedimente (Rachold, Hoops, Hubberten) Spät- und postglaziale Vegetations- und Klimageschichte des nördlichen Mittelsibiriens (Hahne, Harwart) Informationssystem SEPAN (Sediment and Paleoclimate Data Network) (Diepenbroek, Grobe, Reinke, Schlitzer, Sieger, Siems) 3. Berichte der wissenschaftlichen Arbeitsgruppen 3.1 Ozeanische und atmosphärische Prozesse in den Polargebieten 3.2 Modellierung von Prozessen und Zirkulationssystemen im Ozean 3.3 Meeresphysikalische Messungen und Instrumentenentwicklung 3.4 Der Untergrund der polaren Teile des Atlantik und seiner kontinentalen Umrandung 3.5 Glaziologie 3.6 Meeresgeologie 3.7 Marine Ökosystemforschung und Ökophysiologie (Sektion Biologie I) 3.8 Biologische Meereskunde (Sektion Biologie II) 3.9 Geowissenschaftliche Studien in Eisrandgebieten 3.10 Physik und Chemie der polaren A tmosphäre 3.11 Meereisforschung 3.12 Der Kohlenstoffkreislauf 4. Großgeräte, Expeditionen und Landstationen 4.1 "Polarstern" 4.2 "Victor Hensen" 4.3 Polarflugzeuge 4.4 Landexpeditionen 4.5 Neumayer-Station 4.6 Dallmann-Laboratorium 4.7 Koldewey-Station 4.8 Weitere kleine Stationen 5. Logistik 6. Internationale und nationale Zusammenarbeit 6.1 Nationale Zusammenarbeit 6.2 Internationale Zusammenarbeit 7. Zentrale Einrichtungen 7.1 Rechenzentrum 7.2 Bibliothek 7.3 Presse-und Öffentlichkeitsarbeit 8. Personeller Aufbau und HaushaItsentwicklung 8.1 Personal 8.2 Haushalt 8.3 Bericht der Frauenbeauftragten 9. Veröffentlichungen 9.1 Veröffentlichungen des Instituts 9.2 Veröffentlichungen der Mitarbeiter Anhang I. Personal II. Wissenschaftliche Veranstaltungen III. Abgeschlossene Examensarbeiten IV. "Polarstern"-Expeditionen

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Note: Contents: 1. Personnel at DC. - 2. Summary timetable of events for EPICA personnel. - 3. Transport to/from DC for EPICA personnel. - 4. Building period. - 5. Scientific activity - equipment layout. - 6. Science processing line. - 7. Results from this season. - 8. General comments on communications, logistics and general status of the camp. - 9. Tasks that EPICA personnel need to do next season. - 10. Recommendations for 1998/99. - 11. Acknowledgements.

Note: CONTENTS Page Preface Introduction Elastomers and sealant formulations Mechanical behavior of sealants Phenomenological behavior of rubbers and elastomers Hyperelastic constitutive model Examples of sealant behavior Mechanical response of seals Basic structural geometry and loading configurations of seals Conventional performance testing for studying the load and deformation response of joint and crack seals Response of seals to joint movements Summary and recommendations Literature cited Abstract

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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

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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 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 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 Results at Site 2 Discussion References

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: 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: 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 Introduction Test apparatus and experimental procedures Experimental results Conclusions References