地球自转减速研究的现状及地球大气粘滞性对地球自转减速的影响

Status quo for researching the retardation of rotation of the earth and the influence of viscosity of the Earth atmosphere on the retardation of the rotation of the Earth

首先,介绍了地球自转减速的研究现状,其次,利用粘性流体力学研究了地球大气粘滞性对地球自转减速的影响.根据被粘滞性大气包围的地球的自转能和角动量变化的2种理论推出了地球自转角速随时间减速的规律的同一式.利用所推出的理论式计算了在百年后地球自转角速的减少值.理论和计算结果表明:地球大气粘滞性对地球自转确实有减速的作用,但这种影响作用也确实很小,只能在长久岁月中(数千年以上)才能观测到.

The author first recommend status quo for researching the retardation of rotation of the Earth,and then studies the influence of the viscosity of earth atmosphere on the retardation of the earth rotation by using the viscous hydrodynamics.The same formulas for the retardation of the rotational angular velocity of the earth with time are derived by using two onservative theories of energy and angular momentum.The results of theories and computation show clerly that the action of the atmosphere viscosity of t...