The Strength–Density Relationship for Dry Snow
نویسندگان
چکیده
منابع مشابه
Size scaling for dry snow slab release
[1] Sandpile avalanches were used first to illustrate the concept of self-organized criticality (SOC). Snow avalanches consist of two types: (1) loose snow avalanches which release in cohesionless material at the top of the snowpack and (2) slab avalanches which release by propagation of shear fractures originating in a thin weak layer at depth in the snowpack. Loose snow avalanches are analogo...
متن کاملA dry snow pack model
A dry snow pack is viewed as an interacting mixture of rigid ice grains and air occupying the pore space in the matrix. The three-dimensional mass, momentum and energy balances are formulated within the framework of interacting continua theory. The assumption of a common ice and air temperature is made to reflect the very slow relative motion between the air and ice. Focusing on a one-dimension...
متن کاملA microstructural dry-snow metamorphism model for kinetic crystal growth
Historically, dry-snow metamorphism has been classified by the thermal environment and thermodynamic processes in a snowpack. Snow experiencing predominantly macroscopic isothermal conditions develops different microstructure than snow subjected to large temperature gradients. As such, much previous research has been categorized by and limited to specific thermal conditions. The current researc...
متن کاملStereological Characterization of Dry Alpine Snow for Microwave Remote Sensing
A persistent problem in investigations of electromagnetic properties ofsnow, from reflectance at visible wavelengths to emission and backscattering in the microwave, has been the proper characterization of the snow’s physical properties. We suggest that the granular and laminar structure of snow can be measured in its aggregated state by stereology performed on sections prepared from snow speci...
متن کاملEffect of Snow Density Irregularities on Radar Backscatter from a Layered Dry Snow Pack
The contribution of electromagnetic wave scattering on density irregularities in the volume component of radar backscatter was analyzed for a thick snow pack containing internal hoar/ice layers. To evaluate the effect of this scattering, Density Deviation Factor (DDF), a statistical parameter, was introduced into the backscattering coefficient using the “slice” approach. DDF is proportional to ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Glaciology
سال: 1967
ISSN: 0022-1430,1727-5652
DOI: 10.1017/s0022143000020189