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Scintillation indices

Small scale irregularities of the ionospheric plasma may cause fluctuations of the signal strength of radio waves.

The S4-Index is a measure to describe the amplitude- respectively the intensity fluctuations of a signal. The σφ-Index, describes the behaviour of carrier phase fluctuations. Both indices are calculated over a one minute interval.

DLR’s high rate GNSS measurement network ranges from auroral to equatorial latitudes. The measurements are provided in near real time by DLR’s Experimentation and Verification Network (EVnet)[Noack et al., 2004,2005]. We thank the hosting institutes for supplying the required infrastructure.


High-Rate scintillation network



Location

Country

Latitude [°N]

Longitude [°E]

Hosting Partner

Bahir Dar

Ethiopia

11.57

37.40

Bahir Dar University

Chofu

Japan

35.40

139.32

JAXA

Kiruna

Sweden

67.84

20.41

Swedish Institute of Space Physics 

Neustrelitz

Germany

53.32

13.07

DLR

Stanford

USA

37.25

-122.10

Toulouse

France

43.57

1.47

Laboratory of Signals,Communications, Antenna, Navigation

Tenerife

Spain

28.47

-16.32

Universidad de La Laguna

 

 



Satellite color association

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Chofu (35.40°N; 139.32°E) *** currently not available because of hardware maintenance *** Top

Kiruna (67.84°N; 20.41°E) Top

Neustrelitz (53.32°N; 13.07°E) Top

Stanford (37.254°N; -122.102°E) Top

Toulouse (43.57° N; 1.47° E) Top

Tenerife (28.47° N; -16.32° E) Top