The response method for the analysis of geomagnetic micropulsations

The nature of geomagnetic micropulsations is considered with reference to the response method of analysis. Under the assumption that the magnetosphere is a linear and time-invariant physical system, the system function for pcs and pi2 has been numerically calculated. An investigation of the general input-output relationships shows that the magnetogram recorded on the Earths' surface may be due to either the resonant frequency of the magnetosphere or the input frequency of the solar wind.