[Plasma 2020 Decadal] Disentangling the Spatiotemporal Structure of Turbulence Using Multi-Spacecraft Data

摘要: This white paper submitted for 2020 Decadal Assessment of Plasma Science concerns the importance multi-spacecraft missions to address fundamental questions concerning plasma turbulence. turbulence is ubiquitous in universe, and it responsible transport mass, momentum, energy such diverse systems as solar corona wind, accretion discs, planet formation, laboratory fusion devices. Turbulence an inherently multi-scale multi-process phenomenon, coupling largest scales a system sub-electron via cascade energy, while simultaneously generating reconnecting current layers, shocks, myriad instabilities waves. The wind humankind's best resource studying naturally occurring turbulent plasmas that permeate universe. Since launching our first major scientific spacecraft mission, Explorer 1, 1958, we have made significant progress characterizing Yet, due severe limitations imposed by single point measurements, are unable characterize sufficiently spatial temporal properties leaving many about unanswered. Therefore, time has now come wherein making additional determine dynamical nature requires spanning wide range simultaneously. A dedicated mission concurrently covering would not only allow us directly structure turbulence, but also mitigate face, non-ideal orbits observing Some fundamentally important can be addressed situ multipoint measurements discussed.