结果表明,虽然水文激发在钱德勒频带上的激发能量很小,只能解释观测激发的平均能量约10%,但是在大气激发的基础上增加水文变化的激发作用,显著提高了与观测激发的相干系数和置信度水平.

• The result shows that the average energy of hydrological excitation in Chandler wobble frequency band is relatively smaller and can explain only about 10%25 of observed excitation. However, the combination of hydrological excitation with atmospheric excitation can evidently increase the squared coherence between observed excitation and combined excitation, and raise the confident threshold of the coherence analysis.