Publication Date:
2017-04-04
Description:
The paper describes results of the studies devoted to the solar activity impact on the Earth’s upper atmosphere and ionosphere,
conducted within the frame of COST ES0803 Action.
Aim: The aim of the paper is to represent results coming from different research groups in a unified form, aligning their specific topics into the general context of the subject.
Methods: The methods used in the paper are based on data-driven analysis. Specific databases are used for spectrum analysis,
empirical modeling, electron density profile reconstruction, and forecasting techniques.
Results: Results are grouped in three sections: Medium- and long-term ionospheric response to the changes in solar and geomag-
netic activity, storm-time ionospheric response to the solar and geomagnetic forcing, and modeling and forecasting techniques.
Section 1 contains five subsections with results on 27-day response of low-latitude ionosphere to solar extreme-ultraviolet (EUV)
radiation, response to the recurrent geomagnetic storms, long-term trends in the upper atmosphere, latitudinal dependence of total electron content on EUV changes, and statistical analysis of ionospheric behavior during prolonged period of solar activity.
Section 2 contains a study of ionospheric variations induced by recurrent CIR-driven storm, a case-study of polar cap absorption
due to an intense CME, and a statistical study of geographic distribution of so-called E-layer dominated ionosphere.
Section 3 comprises empirical models for describing and forecasting TEC, the F-layer critical frequency foF2, and the height of
maximum plasma density. A study evaluates the usefulness of effective sunspot number in specifying the ionosphere state. An
original method is presented, which retrieves the basic thermospheric parameters from ionospheric sounding data.
Description:
Published
Description:
A06
Description:
1.7. Osservazioni di alta e media atmosfera
Description:
N/A or not JCR
Description:
open
Keywords:
ionosphere
;
solar activity
;
storm
;
total electron content
;
data analysis
;
01. Atmosphere::01.02. Ionosphere::01.02.01. Ion chemistry and composition
;
01. Atmosphere::01.02. Ionosphere::01.02.04. Plasma Physics
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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