Journal articles
Determination of the most pertinent EUV proxy for use in thermosphere modeling
Abstract : [1] Two major issues in the specification of the thermo-spheric density are the definition of proper solar inputs and the empirical modeling of thermosphere response to solar and to geomagnetic forcings. This specification is crucial for the tracking of low Earth orbiting satellites. Here we address both issues by using 14 years of daily density measurements made by the Stella satellite at 813 km altitude and by carrying out a multiscale statistical analysis of various solar inputs. First, we find that the spectrally integrated solar emission between 26–34 nm offers the best overall performance in the density reconstruction. Second, we introduce linear parametric transfer function models to describe the dynamic response of the density to the solar and geomag-netic forcings. These transfer function models lead to a major error reduction and in addition open new perspectives in the physical interpretation of the thermospheric dynamics.
Cited literature [18 references]
https://hal-insu.archives-ouvertes.fr/insu-01180080
Contributor : Nathalie Pothier Connect in order to contact the contributor
Submitted on : Friday, July 24, 2015 - 10:49:14 AM
Last modification on : Tuesday, May 10, 2022 - 3:24:56 PM
Long-term archiving on: : Sunday, October 25, 2015 - 10:33:34 AM
Contributor : Nathalie Pothier Connect in order to contact the contributor
Submitted on : Friday, July 24, 2015 - 10:49:14 AM
Last modification on : Tuesday, May 10, 2022 - 3:24:56 PM
Long-term archiving on: : Sunday, October 25, 2015 - 10:33:34 AM
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