JARE scientific reports series  C no.7

[目次]

• CONTENTS
• Abstract / 1
• 1. Introduction / 2
• 2. Conditions of Surface Snow in Different Regions of East Antarctica / 4
• 2.1. Mean annual snow accumulations / 4
• 2.2. Height of the surface snow relief / 6
• 2.3. Snow density at the surface / 6
• 2.4. Snow hardness at the surface / 6
• 2.5. Division of the ice sheet along the traverse route / 7
• 3. Topographical and Meteorological Factors Controlling Conditions of Surface Snow / 8
• 3.1. Relationships between conditions of surface snow and the slope inclination / 8
• 3.2. Relationships between the snow density and the slope inclination / 9
• 3.3. Dependence of wind speed on the slope inclination / 10
• 3.4. Influence of wind speed on conditions of surface snow / 11
• 3.5. Effects of temperature on the density of snow / 12
• 4. Snow Accumulations in a Region between Syowa Station and Plateau Station / 14
• 4.1. Relationships between snow accumulations and the local topography / 15
• 4.2. Comparison of the values of annual snow accumulations measured by stakes and from snow stratigraphy / 16
• 4.3. Ablation and accumulation in summer along the route / 16
• 5. Characteristics of Snow in the Upper 2m of the Ice Sheet in East Antarctica-Results of Pit Studies / 18
• 5.1. The type and grain size of snow in the upper 2m / 19
• 5.2. Densification of snow in the upper 2m of the snow cover / 20
• 6. Distribution of Snow Density in the Upper 10m of the Ice Sheet along the Route of 40-43°E-Results of Snow Core Analyses / 22
• 6.1. Change of regional profiles of snow density with depth / 23
• 6.2. Relationships between the snow density at 5 and 9m depths and the mean annual air temperature / 24
• 7. Conclusions / 26
• Acknowledgements / 26
• References / 27
• Appendix I
• Appendix II

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