BackForward Variable: h'F

Definition
Full name h'F
Definition Virtual height of the bottom of the ionospheric F-layer.
Measuring Units km Uncertainty Units km
Horizontal Res Units km Vertical Res Units
Stability Units km (Stability /decade)

 

Comment: Indication of variability of F-region dynamo electric field.
Last modified: 2014-11-28
Applied in OSCAR/Space Gap Analysis: No
Classification
  • Domain: Outer Space
    • Sub-domain: Ionospheric disturbances
      • Variable: h'F
        • Measured in Layers:
          • n/a (2D)
  • Cross-cutting themes:

Requirements defined for h'F  (1)

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
1159 h'F n/a (2D) 1.3 Ionosphere, Thermosphere and Geomagnetic Field Forecasting and Monitoring 1.0 1 km
5 km
10 km
0.5 		100 km
200 km
500 km
0.5 		5 min
15 min
60 min
0.5 		60 sec
10 min
60 min
0.5 		Global land reasonable 2025-12-07 New source to be determined Values discussed with ET-SWX. Submitted by Kirsti Kauristie AA 1.3 POC. h'F is a parameter derived from ionosonde measurements. It can be used to estimate the true altitude of the maximum electron density in the F-layer of ionosphere. Attributes for Uncertainty and stability need still some discussions.