Determination of Particle Paths using the Finite-Element Method
Determination of Particle Paths using the Finite-Element Method
复制标题
使用有限元法确定粒子路径
作者：
D. Stolle;M. Killeavy
摘要大型冰体包含了大量关于过去气候和大气化学的信息。为了正确解释从冰川获得的冰芯信息，必须建立冰芯的时间尺度。一个程序的基础上的有限元法，使用速度压力和流函数公式建立粒子路径，因此等时线，概述。实例表明，该程序能够预测粒子路径和等时线，可用于确定时间尺度或确认由其他方法建立的日期，从大冰块获得的冰芯。
Abstract Large ice masses contain a wealth of information regarding past climates and atmospheric chemistry. To interpret properly information from ice cores obtained from glaciers, a time-scale for the ice core must be established. A procedure based on the finite-element method, using velocity-pressure and stream-function formulations to establish particle paths and hence isochrones, is outlined. Examples are presented which demonstrate the ability of the procedure to predict particle paths and isochrones which can be used to determine the time-scale or to confirm dates established by other methods, of ice cores obtained from large ice masses.