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Recommendation for a set of solar EUV lines to be monitored for aeronomy applications
- Source :
- Annales Geophysicae, Vol 25, Iss 6, Pp 1299-1310 (2007), Annales Geophysicae, Annales Geophysicae, European Geosciences Union, 2007, 25 (6), pp.1299-1310. ⟨10.5194/angeo-25-1299-2007⟩, Annales Geophysicae, 2007, 25 (6), pp.1299-1310. ⟨10.5194/angeo-25-1299-2007⟩, Annales Geophysicae, Vol 25, Pp 1299-1310 (2007)
- Publication Year :
- 2007
- Publisher :
- Copernicus Publications, 2007.
-
Abstract
- In two recent studies, Dudok de Wit et al. (2005) and Kretzschmar et al. (2006) have shown that the solar Ultra-Violet spectrum between 25 and 195 nm can be reconstructed from the observation of a set of 6 to 10 carefully chosen spectral lines. The best set of lines, however, is application dependent. In this study, we demonstrate that a good candidate for aeronomy applications consists of the following 6 lines: H I at 102.572 nm, C III at 97.702 nm, O V at 62.973 nm, He I at 58.433 nm, Fe XV at 28.415 nm and He II at 30.378 nm. The TRANSCAR model is used to quantify the impact of each individual line on the density, temperature and velocity profiles. Using a multidimensional scaling technique, we show how to select from this the best set of lines. Although this selection is motivated by the specification of the ionosphere, our set of lines is also found to be appropriate for reconstructing the variability of the solar spectrum between 25 and 195 nm.
- Subjects :
- Atmospheric Science
010504 meteorology & atmospheric sciences
Extreme ultraviolet lithography
[SDE.MCG]Environmental Sciences/Global Changes
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences
[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph]
01 natural sciences
Spectral line
Set (abstract data type)
Optics
[INFO.INFO-TS]Computer Science [cs]/Signal and Image Processing
Ultraviolet astronomy
0103 physical sciences
Earth and Planetary Sciences (miscellaneous)
lcsh:Science
010303 astronomy & astrophysics
0105 earth and related environmental sciences
Physics
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere
business.industry
Solar spectra
Aeronomy
lcsh:QC801-809
Geology
Astronomy and Astrophysics
lcsh:QC1-999
lcsh:Geophysics. Cosmic physics
Space and Planetary Science
Line (geometry)
lcsh:Q
Ionosphere
business
[SPI.SIGNAL]Engineering Sciences [physics]/Signal and Image processing
lcsh:Physics
Subjects
Details
- Language :
- English
- ISSN :
- 14320576 and 09927689
- Volume :
- 25
- Issue :
- 6
- Database :
- OpenAIRE
- Journal :
- Annales Geophysicae
- Accession number :
- edsair.doi.dedup.....5a66bcd06c0a623efd07e5db78d8e7ca