Significant charged-particle precipitation occurs in the dayside auroral zone during and after interplanetary shock impingements on the Earth's magnetosphere.

Ultraviolet↗

NASA NTRS2001

Dayside auroras aused by interplanetary shocks: coordinated observations

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FAST particles magnetosphere↗

NASA NTRS2001

Alfven waves, magnetic decreases, and discontinuities in interplanetary space

The Ulysses mission goes to the polar regions of the heliosphere and therefore is an ideal mission to study Alfven waves and discontinuities.

Ulysses observations polar regions alfven waves↗

NASA NTRS2001

Auroral zone plasma waves detected at polar: PCBL waves

Polar Cap Boundary Layer waves are ELF/VLF electric and magnetic waves detected on field lines adjacent to the polar cap, thus their name.

Magnetopause↗

NASA NTRS2000

Polar Cap Boundary Layer Waves: Location, Interplanetary Dependence and Nature

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polar cap ELF/ULF↗

NASA NTRS2000

Interplanetary Ram Pressure Increases Decreases and Dayside Auroral Variations

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solar wind polar UVI↗

NASA NTRS2000

Interplanetary Shock Triggering of Substorms

We use WIND solar wind data a POLAR UV imaging data to study magnetospheric responses and substorm triggering mechanisms during and after interplanetary (IP) shock events.

wind solar data Polar UV substorms↗

NASA NTRS2000

Interplanetary Ram Pressure Increases/Decreases and Dayside Auroral Variations

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solar wind ram pressure auroral↗

NASA NTRS2000

Polar Cap Boundary Layer Waves: Locations, Interplanetary Dependence and Nature

Polar Cap Boundary Layer waves are ELF/ULF electric and magnetic waves detected on field lines just adjacent to the polar cap, thus their name. Waves are present at this location 96% of the time.

ELF/ULF Electric Magnetic Waves↗

NASA NTRS2000