Theory of densification of dry snow on high polar glaciers, II
Theory of densification of dry snow on high polar glaciers, II
复制标题
高极冰川干雪致密化理论，II
DOI：
--
复制
发表时间：
1962
期刊：
影响因子：
--
通讯作者：
H. Bader
中科院分区：
文献类型：
--
作者：
H. Bader
翻译后摘要：雪致密化的理论进一步发展的基础上的粘度和密度之间的指数关系。在高应力下，载荷-应力和应变率之间的线性关系是无效的，而被双曲正弦函数所取代。给出了温度循环修正的经验函数。本文导出了用计算机计算深度密度曲线的两个公式和一个简化公式。给出了从现场数据确定函数参数的说明。格陵兰和南极地区的四个深度-密度曲线的计算和绘图表明，该理论是有用的。（作者）
Abstract : The theory of snow densification is further developed on the basis of an exponential relation between viscosity and density. A linear relation between load-stress and strain rate is not valid for high stresses, and is replaced by a hyperbolic sine function. An empirical function is given for the temperature cycle correction. Two equations are derived for calculating depthdensity curves with computers, and a simplified one for use with desk calculators. InstructionsARE GIVEN FOR DETERMINATION OF FUNCTION PARAMETERS FROM FIELD DATA. Four depth-density curves for Greenland and Antarctic locations are computed and graphed to show that the theory is useful. (Author)