BackForward Variable: Geomagnetic field

Definition
Full name Geomagnetic field
Definition Magnitude and direction of the 3D magnetic field on the surface of Earth and within the magnetosphere (i.e., in low-Earth orbit and in geosynchronous orbit).
Measuring Units nanoTesla (nT) Uncertainty Units nanoTesla (nT)
Horizontal Res Units km Vertical Res Units
Stability Units nanoTesla (nT) (Stability /decade)

 

Comment: Besides the determination of the International Geomagnetic Reference Field (IGRF), among other models, which has many applications, geomagnetic field measurements are useful in Space Weather, at high temporal sampling, to detect geomagnetic disturbances within the magnetosphere. The reference frame is Cartesian or Cylindrical with many different orientations. Ground measurements have Bx, By and Bz as Cartesian magnetic field components oriented to geographical North, East and local Nadir, respectively. H, D and Z are also used as Cylindrical components with H oriented horizontally, D (declination) measuring the angle in relation to the local magnetic meridian and Z pointed to local Nadir.
Last modified: 2014-11-28
Applied in OSCAR/Space Gap Analysis: Yes
Classification
  • Domain: Terrestrial
    • Sub-domain: Solid Earth and magnetic field
      • Variable: Geomagnetic field
        • Measured in Layers:
          • Land surface
          • Geo
          • Leo
  • Cross-cutting themes:

Requirements defined for Geomagnetic field  (3)

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
612 Geomagnetic field Land surface Space Weather 0.1 nanoTesla (nT)
0.3 nanoTesla (nT)
1 nanoTesla (nT) 		100 km
200 km
500 km 		1 sec
10 sec
10 sec 		60 sec
10 min
60 min 		Global tentative 2011-05-01 ICTSW-1 Indicator of geomagnetic activity and ionospheric currents
613 Geomagnetic field Geo Space Weather 0.1 nanoTesla (nT)
0.3 nanoTesla (nT)
1 nanoTesla (nT) 		26420 km
66000 km
264200 km 		1 sec
10 sec
10 sec 		60 sec
5 min
10 min 		Global tentative 2011-05-01 ICTSW-1 Magnetopause crossing and sudden impulse detection
614 Geomagnetic field Leo Space Weather 0.1 nanoTesla (nT)
0.3 nanoTesla (nT)
1 nanoTesla (nT) 		1 km
10 km
100 km 		1 sec
5 sec
10 sec 		60 sec
60 sec
10 min 		Global tentative 2011-05-01 ICTSW-1 Geomagnetic activity indicator