Amplitude spectrum of a radio signal reflected from the sporadic E layer

Amplitude variations of probing signals and oblique-sounding ionograms in connection with the effect of high-power oblique radio transmissions on the ionosphere

Amplitudes of electron cyclotron waves transmitted in the ionosphere

AMPS experiments involving gas releases

AMPTE/CCE CHEM observations of the energetic ion population at geosynchronous altitudes

AMPTE/CCE observations of shell-like He(2+) and O(6+) distributions in the magnetosheath

An Absence of Equatorial Scintillation Activity Prior to Large Geomagnetic Storms

An Acoustic Demonstration Model for CW and Pulsed Spectrosocopy Experiments

An acousto-optical spectrometer with a visible laser diode source

An Advanced EUV Multi-Order Spectral Imager For The Solar Atmosphere

An advanced visible-UV spectrometer for atmospheric composition measurements

An aerosol collector pyrolyser for the Cassini Titan probe

An airborne cryogenic mid-infrared spectrometer for the investigation of mesoscale UTLS dynamics

An algorithm for the removal of radio frequency interference in ionospheric backscatter sounding

An All Reflective Ultraviolet Integral Field Spectrometer

An All-reflective Integral Field Spectrograph for Far Ultraviolet Astrophysics

An all-sky survey at 230 GHz by MLS on Aura

An alternative analysis of low- and high-altitude observations of ring current ions during a storm recovery phase

An alternative Shell inversion technique - Analysis and validation based on COSMIC and ionosonde data

An amorphous phase on the anorthite Hugoniot