By Oleg Troshichev, Alexander Janzhura
This publication demonstrates that the strategy, according to the floor polar cap magnetic observations is a competent prognosis of the sunlight wind power entering the magnetosphere technique for the uninterruptive tracking of the magnetosphere country (i.e. house weather). It indicates that the sun wind power pumping strength, might be defined by means of the computer development price, therefore, the magnetospheric substorms good points are predetermined by way of the computer dynamics. in addition, it is going directly to exhibit that the start and finishing of magnetic storms is predictable. The magnetic hurricane begin provided that the solar power enter into the magnetosphere exceeds a undeniable point and prevents while the strength enter seems to be under this level.
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This ebook demonstrates that the tactic, in accordance with the floor polar cap magnetic observations is a competent prognosis of the sunlight wind power getting into the magnetosphere procedure for the uninterruptive tracking of the magnetosphere kingdom (i. e. area weather). It indicates that the sunlight wind strength pumping energy, will be defined via the computer progress cost, hence, the magnetospheric substorms beneficial properties are predetermined by means of the computer dynamics.
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Additional info for Space Weather Monitoring by Ground-Based Means: PC Index
E. in Region 1, whereas the other sheet is located on the poleward boundary of the cusp (Region 3). The direction of field-aligned currents is determined by sign of the IMF BY component, as well as the direction of ionospheric currents flowing between current sheets (Friis-Christensen and Wilhjelm, 1975). , 1981) revealed that the sign of the IMF azimuthal component influences the flow direction and the intensity of currents in Regions 1 and 3. For the conditions of BY > 0, field-aligned currents in the northern dayside region flow into the ionosphere in the equatorward layer (Region 1), and flow out of the ionosphere in the poleward layer (Region 3).
The MAGPC index showed the best relationship to such coupling functions as the interplanetary electric field EKL, determined by Kan and Lee (1979). The index was regarded as a characteristic of the convection field over the polar cap: the positive value of the MAGPC indicated antisunward convection, while the negative MAGPC pointed to sunward convection. Availability of 5-min IMF data makes it possible to determine correlation between the 15-min MAGPC index and interplanetary quantities for different delay time values with time solution of 5 minutes.
J Geophys Res 83: 5586 Winningham JD, Yasuhara F, Akasofu SI, Heikkila WJ (1975) The latitudinal morphology of 10-eV to 10-keV electron fluxes during magneticallybquiet and disturbed times in the 2100–0300MLT sector. J Geophys Res 80: 3148 Zmuda AJ Martin JH, Heuring FT (1966) Transverse magnetic disturbances at 1100 km in the auroral zone. J Geophys Res 71: 5033-5045 Zmuda AJ, Armstrong JC (1974) The diurnal flow pattern of field-aligned currents. J Geophys Res 79: 4611-4519 3. A method for the PC index determination The idea behind PC index derivation is to use current polar cap magnetic data with application of the once-derived regression (calibrating) coefficients α and β connecting the coupling function EKL with value of the polar cap magnetic disturbance.
Space Weather Monitoring by Ground-Based Means: PC Index by Oleg Troshichev, Alexander Janzhura