<< BRIEF DESCRIPTION
Empirical Model of the Equatorial Ionospheric Anomaly
foF2 map (longitude-latitude)
Month
Local or Universal Time
Hour
Min
January
February
March
April
May
June
July
August
September
October
November
December
UT
LT
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
00
30
Latitudinal foF2 profiles
Month
Local Time, Hour
Min
Longitude
January
February
March
April
May
June
July
August
September
October
November
December
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
00
30
0
30
60
90
120
150
180
210
240
270
300
330
360
foF2 in the point
Month
Local Time, Hour
Min
Latitude
Longitude
January
February
March
April
May
June
July
August
September
October
November
December
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
00
30
-70
-65
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
0
30
60
90
120
150
180
210
240
270
300
330
360
foF2 daily LT-variation
Month
Latitude
Longitude
January
February
March
April
May
June
July
August
September
October
November
December
-70
-65
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
0
30
60
90
120
150
180
210
240
270
300
330
360
foF2 seasonal LT- variations
Local Time, Hour
Min
Latitude
Longitude
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
00
30
-70
-65
-60
-55
-50
-45
-40
-35
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
35
40
45
50
55
60
65
70
0
30
60
90
120
150
180
210
240
270
300
330
360
<< BRIEF DESCRIPTION