EUV Imaging Of The Ionosphere From Space

Larry J. Paxton; Douglas J. Strickland

doi:10.1117/12.946891

16 August 1988 EUV Imaging Of The Ionosphere From Space

Larry J. Paxton, Douglas J. Strickland

Proceedings Volume 0932, Ultraviolet Technology II; (1988) https://doi.org/10.1117/12.946891
Event: 1988 Technical Symposium on Optics, Electro-Optics, and Sensors, 1988, Orlando, FL, United States

Abstract

The Naval Research Laboratory's Remote Atmospheric and Ionospheric Detection System (RAIDS) will fly onboard a TIROS spacecraft in 1990-1991. The orbiting observatory contains, among its complement of instruments, an EUV spectrograph that will obtain vertical profiles from 75 to 750 km of ionospheric emissions over the 500 to 1100 A band. RAIDS will provide a proof-of-concept opportunity for validating passive UV remote sensing of ionospheric weather on a global basis. As part of this effort, predicted ionospheric airglow signatures are being investigated. A promising technique involves the use of observations of the limb at the 0+ 834 Å emission line to deduce the F₂ electron density profile during the day. The sensitivity of observations to changes in the ionosphere are investigated theoretically by examining the airglow emissions predicted using model ionospheres. Comparisons among the predicted 834 Å signals demonstrate the technique's sensitivity to temporal, geographic, and geophysical variation. Typical ionospheric profiles are investigated and it is found that observations from RAIDS altitudes are ideally suited to monitoring ionospheric weather.

Citation Download Citation

Larry J. Paxton and Douglas J. Strickland "EUV Imaging Of The Ionosphere From Space", Proc. SPIE 0932, Ultraviolet Technology II, (16 August 1988); https://doi.org/10.1117/12.946891

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