UV Multi-Spectral Images of the Ionosphere and Thermosphere from LITES and ICON
Abstract
We present global images of the daytime Equatorial Ionization Anomaly (EIA) as manifested in the extreme- and far-ultraviolet (EUV/FUV) airglow collected by the Limb-Imaging Ionospheric and Thermospheric EUV Spectrograph (LITES) on the International Space Station. We compare these images of the resonantly-scattered OI 83.4 nm emission with simultaneous images of the ionospheric radiative recombination airglow at 135.6 nm visible above 250 km tangent altitudes to examine the symmetry and variability of the dense crests of the EIA across local times from late morning to pre-sunset.
The Ionospheric Connection Explorer (ICON) includes an Extreme Ultraviolet (EUV) and a Far-Ultraviolet (FUV) imager that together provide comprehensive data on the daytime and nighttime ionosphere and daytime thermosphere. Although these sensors and algorithms operate independently, their measurements are designed to be interpreted as part of the comprehensive set of measurements akin to what was observed by LITES. We will discuss results from LITES and the implications and differences for interpreting data from the ICON mission that operates from a higher altitude and lower inclination orbit than LITES. This talk will also present a first look at any early results from the ICON mission that become available.- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2019
- Bibcode:
- 2019AGUFMSA12A..02S
- Keywords:
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- 0355 Thermosphere: composition and chemistry;
- ATMOSPHERIC COMPOSITION AND STRUCTURE;
- 0358 Thermosphere: energy deposition;
- ATMOSPHERIC COMPOSITION AND STRUCTURE;
- 3369 Thermospheric dynamics;
- ATMOSPHERIC PROCESSES;
- 7949 Ionospheric storms;
- SPACE WEATHER