Observations of distortions of optical features in the UV auroral distribution

Observations of disturbances in the lower ionosphere during Soyuz-Apollo experiments

Observations of double layer-like and soliton-like structures in the ionosphere

Observations of E and F region Mg(+) from Spacelab 1

Observations of effects from magnetospheric cusp movement during a solar proton event

Observations of electron temperature gradients in mid-latitude E/s/ layers

Observations of elevated power near the Brunt-Väisälä frequency

Observations of equatorial F region plasma bubbles using simultaneous OI 777.4 nm and OI 630.0 nm imaging: New results

Observations of F layer electron density profiles modulated by planetary wave type oscillations in the equatorial ionospheric anomaly region

Observations of field-aligned current structures during the Coordinated Auroral Experiment using Scatter And Radar (CAESAR) flight 2

Observations of field-aligned currents at the plasma sheet boundary - An ISEE-1 and 2 survey

Observations of field-aligned currents, particles, and plasma drift in the polar cusps near solstice

Observations of fine scale structure in the mesosphere and lower thermosphere

Observations of fluxes of cold ions from plasmasphere into ionosphere during nighttime in middle latitudes

Observations of gravity waves associated with mid-latitude spread-F

Observations of GW/TID oscillations in the F2 layer at low latitude during high and low solar activity, geomagnetic quiet and disturbed periods

Observations of HF-enhanced plasma line with a 46.8-MHz radar and reinterpretation of previous observations with the 430-MHz radar

Observations of high latitude ionospheric conductances

Observations of high-energy electrons in the stratosphere

Observations of Highly Structured Precipitating Electrons in the Dayside Cusp/Boundary Layer Ionosphere