Thermospheric neutral density response to solar forcing

L. Qian; S. C. Solomon; R. G. Roble; B. R. Bowman; F. A. Marcos

doi:10.1016/j.asr.2007.10.019

Thermospheric neutral density response to solar forcing

L. Qian, S. C. Solomon, R. G. Roble, B. R. Bowman, F. A. Marcos

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Recent measurements by the Solar EUV (Extreme Ultra Violet) Experiment (SEE) aboard the Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics satellite (TIMED) provide solar EUV spectral irradiance with adequate spectral and temporal resolution, and thus the opportunity to use solar measurements directly in upper atmospheric general circulation models. Thermospheric neutral density is simulated with the NCAR Thermosphere-Ionosphere-Electrodynamic General Circulation Model (TIEGCM) using TIMED/SEE measurements and using the EUVAC solar proxy model. Neutral density is also calculated using the NRLMSISE-00 empirical model. These modeled densities are then compared to density measurements derived from satellite drag data. It is found that using measured solar irradiance in the general circulation model can improve density calculations compared to using the solar proxy model. It is also found that the general circulation model can improve upon the empirical model in simulating geomagnetic storm effects and the solar cycle variation of neutral density.

Original language	English
Pages (from-to)	926-932
Number of pages	7
Journal	Advances in Space Research
Volume	42
Issue number	5
DOIs	https://doi.org/10.1016/j.asr.2007.10.019
State	Published - Sep 1 2008

Keywords

Density variation
Empirical model
General circulation model
Solar energy deposition
Solar spectral irradiance
Thermospheric neutral density

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10.1016/j.asr.2007.10.019

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title = "Thermospheric neutral density response to solar forcing",

abstract = "Recent measurements by the Solar EUV (Extreme Ultra Violet) Experiment (SEE) aboard the Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics satellite (TIMED) provide solar EUV spectral irradiance with adequate spectral and temporal resolution, and thus the opportunity to use solar measurements directly in upper atmospheric general circulation models. Thermospheric neutral density is simulated with the NCAR Thermosphere-Ionosphere-Electrodynamic General Circulation Model (TIEGCM) using TIMED/SEE measurements and using the EUVAC solar proxy model. Neutral density is also calculated using the NRLMSISE-00 empirical model. These modeled densities are then compared to density measurements derived from satellite drag data. It is found that using measured solar irradiance in the general circulation model can improve density calculations compared to using the solar proxy model. It is also found that the general circulation model can improve upon the empirical model in simulating geomagnetic storm effects and the solar cycle variation of neutral density.",

keywords = "Density variation, Empirical model, General circulation model, Solar energy deposition, Solar spectral irradiance, Thermospheric neutral density",

author = "L. Qian and Solomon, \{S. C.\} and Roble, \{R. G.\} and Bowman, \{B. R.\} and Marcos, \{F. A.\}",

year = "2008",

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doi = "10.1016/j.asr.2007.10.019",

language = "English",

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T1 - Thermospheric neutral density response to solar forcing

AU - Qian, L.

AU - Solomon, S. C.

AU - Roble, R. G.

AU - Bowman, B. R.

AU - Marcos, F. A.

PY - 2008/9/1

Y1 - 2008/9/1

N2 - Recent measurements by the Solar EUV (Extreme Ultra Violet) Experiment (SEE) aboard the Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics satellite (TIMED) provide solar EUV spectral irradiance with adequate spectral and temporal resolution, and thus the opportunity to use solar measurements directly in upper atmospheric general circulation models. Thermospheric neutral density is simulated with the NCAR Thermosphere-Ionosphere-Electrodynamic General Circulation Model (TIEGCM) using TIMED/SEE measurements and using the EUVAC solar proxy model. Neutral density is also calculated using the NRLMSISE-00 empirical model. These modeled densities are then compared to density measurements derived from satellite drag data. It is found that using measured solar irradiance in the general circulation model can improve density calculations compared to using the solar proxy model. It is also found that the general circulation model can improve upon the empirical model in simulating geomagnetic storm effects and the solar cycle variation of neutral density.

AB - Recent measurements by the Solar EUV (Extreme Ultra Violet) Experiment (SEE) aboard the Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics satellite (TIMED) provide solar EUV spectral irradiance with adequate spectral and temporal resolution, and thus the opportunity to use solar measurements directly in upper atmospheric general circulation models. Thermospheric neutral density is simulated with the NCAR Thermosphere-Ionosphere-Electrodynamic General Circulation Model (TIEGCM) using TIMED/SEE measurements and using the EUVAC solar proxy model. Neutral density is also calculated using the NRLMSISE-00 empirical model. These modeled densities are then compared to density measurements derived from satellite drag data. It is found that using measured solar irradiance in the general circulation model can improve density calculations compared to using the solar proxy model. It is also found that the general circulation model can improve upon the empirical model in simulating geomagnetic storm effects and the solar cycle variation of neutral density.

KW - Density variation

KW - Empirical model

KW - General circulation model

KW - Solar energy deposition

KW - Solar spectral irradiance

KW - Thermospheric neutral density

UR - https://www.scopus.com/pages/publications/46049096096

U2 - 10.1016/j.asr.2007.10.019

DO - 10.1016/j.asr.2007.10.019

M3 - Article

AN - SCOPUS:46049096096

SN - 0273-1177

VL - 42

SP - 926

EP - 932

JO - Advances in Space Research

JF - Advances in Space Research

IS - 5

ER -

Thermospheric neutral density response to solar forcing

Abstract

Keywords

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