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Table 1 Experiment parameters (only used in the calculations) and radar parameters

From: Tristatic observation of polar mesosphere winter echoes with the EISCAT VHF radar on 8 January 2014: a case study

 

Tromsø

Kiruna

Sodankylä

Geographic coordinates

69°35′N 19°14′E

67°52′N 20°26′E

67°22′N 26°38′E

Frequency

224.4 MHz

  

Peak power

1.5 MW

  

Half-power beam width

1 × 2.4° × 1.7° Tx

2 × 2.4° × 1.7° Rx

1.2°

1.2°

Azimuth

 

346.3°

312.7°

Elevation

90°

19.6°

Bragg scale

0.67 m

0.82 m

0.88 m

Pointing height

 

75 km

75 km

Number of range gates

250 (for D region)

53

53

Altitude resolution Δh

360 m

540 m

590 m

Minimum height (Hmin)

19 km

61 km

59.4 km

Maximum height (Hmax)

109 km

89 km

91 km