Estimation of geomagnetically induced current levels from different input data

摘要: [1] Pragmatic schemes for estimating geomagnetically induced current (GIC) values using different levels of knowledge about the physical quantities associated with geomagnetic induction process are studied. The fundamental idea behind proposed is that as detailed behavior relevant decreases, lack compensated by statistical characteristics and GIC. It shown reasonable GIC estimates can be obtained if some information state environment available. For example, single time derivative magnetic field at surface Earth or even a mere value deflection from baseline level sometimes sufficient to give estimate. also sampling rate variations used make lowered down 60 s without crucially degrading accuracy estimation.