A study upon real sounded ionosonda data
Background & Purpose
• Why this phenomenon called sporadic when it is practically a daily occurrence ?
• To know the behavior of E-Sporadic phenomenon by using the ionosonda data
How to read Ionogram
• E and Es different by 150 kHz
• Auto scaling make some mistakes
• Some times the data reduced by the ionogram axis
How to grouping data
• Highest hourly foEs each month
• Highest daily foEs
• Hourly >= 5 MHz
• Daily >= 5 MHz
• Number of hours and days foEs>= 5 MHz
Summary of the result
• Grouping the result
• Certain behavior Es
• Have a similar trends in every years
People Opinion
• Varying Es density
• Sun Radiation Role
• The season contradiction
• Meteor influence
Conclusion
• Showing the E Sporadic occurrence
• E Sporadic behavior seemly have a yearly trends
• There is a lot of opinion about the occurrence E Sporadic
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