en:about
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====== How do we measure the ionosphere? ====== | ====== How do we measure the ionosphere? ====== | ||
- | Our measuring network focuses on the Earth' | + | |
- | The ionospheric regions are shown in Figure 1. The diagram compares their height with the notoriously-known atmospheric layers. | + | Our measuring network focuses on the Earth' |
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+ | The ionospheric regions are shown in Figure 1. The diagram compares their height with the notoriously-known atmospheric layers. | ||
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We can see that the ionospheric regions are also compared using the electron density. This quantity is one of the most important physical diagnostics of any plasma. It shows the amount of charge particles found in unit volume. The electron density is specific for the current time and height and is also strongly influenced by a high-energy impacts reaching the atmosphere. \\ | We can see that the ionospheric regions are also compared using the electron density. This quantity is one of the most important physical diagnostics of any plasma. It shows the amount of charge particles found in unit volume. The electron density is specific for the current time and height and is also strongly influenced by a high-energy impacts reaching the atmosphere. \\ | ||
This phenomenon, which we measure, is called ionospheric response. But how can the ionosphere be measured, indeed? \\ | This phenomenon, which we measure, is called ionospheric response. But how can the ionosphere be measured, indeed? \\ | ||
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- | The frequency of measured radio signal differs in dependence on the appropriate ionospheric region. The D ionospheric region is monitored by the VLF (Very Low Frequency) measurement within the SID monitors, see [[en: | + | The frequency of measured radio signal differs in dependence on the appropriate ionospheric region. The D ionospheric region is monitored by the VLF (Very Low Frequency) measurement within the SID monitors, see [[en: |
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en/about.1460484880.txt.gz · Last modified: 2016/04/12 18:14 (external edit)