Penetration JetPenetration Jet
Plasmasheet
Plasmapause
Penetration Jet
DMSP F15 6 April 2000 21 MLT
Trough
A Strong Polarization Electric Field forms in Low-Conductivity Region between the Inner Edge of the Plasmasheet Precipitation and the Plasmapause
Plasmapause
M-I Coupling:M-I Coupling:Ring Current -Plasmasphere Ring Current -Plasmasphere
InteractionsInteractions
Millstone Hill
Penetration JetPenetration Jet
Statistical Studies indicate the Statistical Studies indicate the Persistence and PredictabilityPersistence and Predictability of the of the Penetration JetPenetration Jet
Storm Enhanced Density is formed Storm Enhanced Density is formed where the where the Penetration Jet overlaps the Penetration Jet overlaps the PlasmaspherePlasmasphere
Polarization Electric Fields Structure Polarization Electric Fields Structure the Outer Plasmasphere forming the Outer Plasmasphere forming Plasmaspheric TailsPlasmaspheric Tails
• Strong Stormtime Electric Fields appear between the plasmasheet and the plasmapause
Millstone Hill Radar Scans Span Auroral and Penetration Jet Convection
20-Year Database used to Determine Statistical Features
Statistical PatternsStatistical Patterns Poleward-Directed Electric Field Spans the Poleward-Directed Electric Field Spans the
Midnight Sector Equatorward of the Auroral Two-Midnight Sector Equatorward of the Auroral Two-Cell Convection PatternCell Convection Pattern
March 31, 2001DMSP F13
PJ Overlaps Outer
Plasmasphere
Effects of Penetrating Electric Effects of Penetrating Electric FieldsFields
Cross-tail electric fields energize and inject Cross-tail electric fields energize and inject particles into the inner magnetosphere particles into the inner magnetosphere forming the forming the disturbance Ring Currentdisturbance Ring Current
Penetrating electric fieldsPenetrating electric fields uplift and perturb uplift and perturb the Plasmasphere and low-latitude the Plasmasphere and low-latitude ionosphereionosphere
Storm-Enhanced Density (SED)Storm-Enhanced Density (SED) and and detached detached plasmasplasmas are formed as the Penetration Jet are formed as the Penetration Jet overlaps the outer plasmasphereoverlaps the outer plasmasphere
Injected Injected Energetic Ions are DestabilizedEnergetic Ions are Destabilized in in Regions of Enhanced Plasma DensityRegions of Enhanced Plasma Density
Dual Effects of Penetrating Dual Effects of Penetrating Electric FieldsElectric Fields
Penetration Electric FieldUplifts
Equatorial Ionosphere
Polarization JetStrips Away
Outer Plasmasphere
Detached Plasmaspheric Regions
Penetration JetStrips Away
Outer Plasmasphere
Radial E Field
Eastward Penetration Electric Field Uplifts
Equatorial Ionosphere
Plumes & Blobs of Storm-Enhanced Density
Sweep across Mid Latitudes
Enhancement and Poleward Expansion of
Equatorial Anomaly
Penetration Jet
GPS Map of TEC July 15, 2000 22:15 UT
