Curlometer analysis of Swarm data and simulations shows FACs depart from stationarity below 100 km, time-shifted estimates diverge at meso-scales, and poor tetrahedral geometry produces spurious perpendicular currents unless mitigated by quality filters.
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physics.space-ph 1years
2026 1verdicts
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On the curlometer measurement of field-aligned and perpendicular currents in low Earth orbit: Swarm observations and whole geospace simulations
Curlometer analysis of Swarm data and simulations shows FACs depart from stationarity below 100 km, time-shifted estimates diverge at meso-scales, and poor tetrahedral geometry produces spurious perpendicular currents unless mitigated by quality filters.