BackForward Variable: Ionospheric Scintillation

Definition
Full name Ionospheric Scintillation
Definition Random fluctuations of radio waves resulting of small scale variations of the ionospheric electron density in space and time.
Measuring Units dimensionless Uncertainty Units %
Horizontal Res Units km Vertical Res Units
Stability Units % (Stability /decade)

 

Comment: Characterized by two indices: (S4) is the coefficient of variation of intensity [standard deviation divided by mean] and (Sigma Phi) is the standard deviation of the phase of the radio signal. Typically observed in GPS signals operating at 1.58 and 1.23 GHz and relevant for all transionospheric transmissions.
Last modified: 2014-11-26
Applied in OSCAR/Space Gap Analysis: Yes
Classification
  • Domain: Outer Space
    • Sub-domain: Ionospheric disturbances
      • Variable: Ionospheric Scintillation
        • Measured in Layers:
          • Ionos
  • Cross-cutting themes:

Requirements defined for Ionospheric Scintillation  (2)

This tables shows all related requirements. For more operations/filtering, please consult the full list of Requirements
Note: In reading the values, goal is marked blue, breakthrough green, threshold orange
Application-dependent Technical Priority (ATP) Magenta and Relative priority of the attributes Red

Id Variable Layer App Area ATP Uncertainty Layer/s Quality Coverage Quality Stability / decade Hor Res Ver Res Obs Cyc Timeliness Coverage Conf Level Val Date Source General Comment Application Area Comment Horizontal Coverage Comment Observation Comment Performance Comment
593 Ionospheric Scintillation Ionos Space Weather 0.1 %
1 %
10 % 		50 km
100 km
200 km 		60 sec
2 min
10 min 		60 sec
10 min
60 min 		Global tentative 2011-05-01 ICTSW-1 GNSS Disturbance Indicator
1160 Ionospheric Scintillation Ionos 1.3 Ionosphere, Thermosphere and Geomagnetic Field Forecasting and Monitoring 1.0 0.1 %
1 %
10 %
0.5 		50 km
100 km
200 km
0.5 		60 sec
2 min
10 min
0.5 		60 sec
10 min
60 min
0.5 		Global land tentative 2025-12-07 New source to be determined The requirements are applicable both for phase and amplitude scintillation. Values discussed with ET-SWX. Submitted by Kirsti Kauristie AA 1.3 POC. Hr Threshold is only a first estimate. Ionospheric scintillation caused by small scale irregularities in electron density can be monitored with GNSS receivers with high sampling (50 Hz) capability. Attributes for Uncertainty and stability need still additional discussions.