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From: oler@rho.uleth.ca (Cary Oler)
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Subject: Daily Summary of Ionospheric Data for 31 August
To: solar-daily@lut.fi
Date: Fri, 3 Sep 93 21:21:47 MDT
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Reply-To: SOLAR-DAILY Distribution List <solar-daily@lut.fi>
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Status: RO

                    ---------------------------------------
                    DAILY IONOSPHERIC SUMMARY FOR 31 AUG 93
                    ---------------------------------------


REPORTS OF IONOSPHERIC ABSORPTION
---------------------------------

DIX: Type of Measurement = Riometer.
     Type of Phenomenon  = Auroral Absorption.
     Start of Event: 0300Z
     Event Maximum : 0445Z,  Maximum Absorption: 1 dB
     End of Event  : 0700Z


M-FACTORS FOR 3000 KM DISTANCES - M(3000)F2
-------------------------------------------

     BOU  WLP  MAU  VBG  GOO  MAN  TAO  CHU  KEA  ARG  BER  NIC  DYS  LEA  MUR  ASH  SAL  DIX  KHA  MAG  JUL  UPS  TOM
     ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---  ---
00Z: 3.4  3.2  2.8  3.1  3.1  2.9  3.4       2.8  3.0  2.9  3.0  3.3  3.4            3.0                 3.0  2.8
01Z: 3.5  2.9  2.7  2.8  3.2  3.2  2.9       2.7  2.9  3.0   C        3.5  2.8  3.0  3.3  2.9  3.4  3.6  3.0  2.8
02Z: 3.5  3.1  2.8  3.3  3.0  3.0  2.9       2.9  2.9  2.9   C        3.8  2.8  3.0  3.1       3.1  3.2  3.0  3.0
03Z: 3.6  3.1  3.5  2.9  2.9  3.2  2.9       3.5  3.0  2.9  3.2       3.5  3.1  3.0  3.2  3.1  3.2  3.3  2.9  3.0
04Z: 3.2  2.9  3.5  2.8  2.5  3.2  3.0       3.5  2.9  2.8  3.6       3.3  3.2  3.1  3.1  3.0  3.2  3.4  3.3  3.3
05Z: 3.2  2.7  3.7  3.1  2.8  3.3  3.0       3.7   B    A   3.4       3.5  3.2  3.2  3.0            3.4  3.5
06Z: 3.2  3.1  2.8  3.2  2.5       2.9       2.8   B   3.0  3.5       3.3  3.1  2.8  3.0  3.1  3.0  3.2  3.4
07Z: 3.1  3.0  2.8  2.6  3.5       3.0       2.8   B   3.0  3.3       3.3  3.1  3.0  3.2  3.0  3.1  3.4  3.3
08Z: 3.2  3.2  2.8  2.6  2.8       3.2       2.8  3.5  3.1  3.2       3.2  3.1  3.0  3.1  3.1  3.1  3.4  3.4
09Z: 3.2  3.2  3.0  3.0  3.3       3.2       3.1   B   3.4  2.9       3.7  3.3  2.9  3.2            3.2
10Z: 3.1  3.2  3.1  2.4  3.4       3.5       3.0  3.5  3.7  3.0       4.1  3.1  2.9  3.1  3.2  3.1  3.2
11Z: 3.1  3.5  3.2  3.1  3.5       3.4       3.2  3.1  4.0  3.1            3.3  3.2  3.2  3.2       3.1
12Z: 3.2  3.5  3.2  2.2  3.3       3.0       3.2  3.3  3.5  3.1
13Z: 3.5   B   3.5  3.9  3.3       3.0   C   3.6  3.2  3.2  3.3
14Z:       B    A   3.5  3.2        C    F    A   3.1  3.2  3.5
15Z:       B   3.8  3.4  3.1       2.9  3.1  3.8  3.0  3.1   C
16Z:       B   3.2  2.9  3.1       3.0  3.1  3.3   B   3.2   C
17Z:       B   3.7  3.5  3.1       3.2   C   3.7   A   3.2   C                                                     3.2
18Z:       B        3.5  3.1       3.5  3.2       3.1  3.1  3.1                                                    3.0
19Z:       B        3.2  3.1       3.3  3.2       3.0  3.3  3.1            3.3  2.8  3.1  3.1       3.4            3.0
20Z:       B        3.3  3.2       3.3  3.0       3.0  3.2  3.1            3.0  2.8  3.0            3.5            2.9
21Z:       B        3.2  3.1       3.2  3.1       3.1  3.3  2.9            3.0  2.8  2.8            3.3            2.8
22Z:       B        3.1  3.1       3.4            3.0  3.4  2.9            3.1  3.0  3.1            3.4            2.8
23Z:       A        3.3  3.1       3.4            3.0  3.5  2.9            2.8  2.9  3.1            3.5            2.9
=========================================
Estimated Average Global M(3000)F2:  3.15.


MINIMUM OBSERVED FREQUENCIES - FMIN (MHz)
-----------------------------------------

     MUR  ASH  SAL  DIX  KHA  MAG  TOM
     ---  ---  ---  ---  ---  ---  ---
00Z:           1.0
01Z: 1.0  1.4  1.0  1.4  1.2  1.2
02Z: 1.0  1.5  1.0       1.3  1.5
03Z: 1.0  1.2  1.0  3.0  1.4  1.5
04Z: 1.0  1.5  1.7  3.3  1.3  1.4
05Z: 1.0  1.5  1.9            1.2
06Z: 1.0  1.5  1.8  1.5  1.4  1.2
07Z: 1.0  1.5  1.0  1.3  1.3  1.1
08Z: 1.0  1.5  1.0  1.0  1.1  1.1
09Z: 1.0  1.7  1.0            1.2
10Z: 1.0  2.1  1.0  1.2  1.3  1.5
11Z: 1.0  1.5  1.0  1.4       1.5
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:                               1.0
18Z:                               1.0
19Z: 1.5  1.6  1.0  1.0       1.6  1.0
20Z: 1.0  1.6  1.0  3.0       1.1  1.0
21Z: 1.3  1.5  1.0            1.1  1.3
22Z: 1.5  1.5  1.0  1.8       1.1  1.0
23Z: 1.5  1.8  1.0  1.0       1.1  1.4


CRITICAL SPORADIC E-LAYER FREQUENCIES - Es (MHz)
------------------------------------------------

     MUR  ASH  SAL  DIX  KHA  MAG  TOM
     ---  ---  ---  ---  ---  ---  ---
00Z:           2.1
01Z: 4.0       2.6  3.8  4.9  3.2
02Z: 4.0  2.0            4.8  2.9
03Z: 3.0  3.2            3.3  3.1
04Z:      5.0  2.7       3.3  3.0
05Z:      3.5  4.1
06Z:      4.0  4.1
07Z:           4.0       3.5  2.5
08Z:           5.7       3.0  2.8
09Z:      3.5  6.3            2.0
10Z: 4.2  3.0  5.8  3.0  3.0  2.6
11Z: 4.0  3.4  3.9
12Z:
13Z:
14Z:
15Z:
16Z:
17Z:                               3.8
18Z:                               3.4
19Z:      3.2  4.0  4.3            3.0
20Z: 3.1  2.3                 2.2  3.0
21Z: 4.2                      2.6
22Z: 3.6            4.2       2.9
23Z: 2.8            4.8       2.9


OBSERVED CRITICAL F2 LAYER FREQUENCIES (MHz)
--------------------------------------------

      BOU  WLP  MAU  OTI  VBG  GOO  MAN  TAO  RES  CHU  KEA  ARG  BER  NIC  DYS  LEA  MUR  ASH  SAL  DIX  KHA  MAG  JUL  UPS  POI  TOM  BEI  CHQ  GUO
     ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
00Z:  6.2  5.6  8.1       7.4  5.9  8.0  6.6  6.0       8.1  5.3  4.6  3.5  6.8  7.3            3.3                 3.5  3.1  4.3       6.7  6.8  7.0
01Z:  6.4  5.4  8.2       9.1  4.8  6.0  7.8   F        8.2  4.3  4.1   C        8.3  3.2  3.3  4.0  4.6  6.5  6.4  3.4  3.1  3.8       7.0  7.0  7.2
02Z:  6.8  4.8  9.5       9.5  4.2  5.0 10.6  4.9       9.5  4.1  4.1   C        7.7  4.0  4.6  4.7       6.1  6.6  3.2  3.0  3.6       6.3  6.7 11.3
03Z:  5.7  4.8 11.8       8.3  3.2  4.7 12.4   F       11.8  3.8  3.8  3.7       6.5  4.2  5.9  5.2  5.2  6.8  6.5  3.2  2.6  3.5       6.4  7.6 12.4
04Z:  4.8  4.5 10.2       7.3  4.2  4.5 13.6  4.8      10.2  3.6  3.9  5.2       6.4  4.7  7.0  5.2  5.0  6.6  5.9  3.6  3.5  3.4       7.2  9.8 13.5
05Z:  4.2  4.3  7.2       4.7  2.7  7.0 13.4   F        7.2   B    A   5.6       7.6  4.8  8.4  5.4            5.7  5.3  4.7  3.6       7.0 10.6 13.0
06Z:  4.1  4.2  4.2       4.2  3.6      13.8            4.2   B   3.5  6.6       6.8  5.3  6.7  5.5  5.9  5.7  5.6  6.0  5.0  5.6       7.0 12.8
07Z:  3.8  4.0  4.1       7.3  2.4      14.6            4.1   B   3.5  6.5       6.8  5.5  7.4  6.0  5.7  6.1  5.9  5.8  5.4  5.6       6.4 12.3
08Z:  3.5  3.7  4.3       6.0  2.7      14.2            4.3  2.6  2.9  6.5       5.9  5.9  8.9  6.1  5.7  6.2  5.9  6.4  6.2  5.8       6.3 13.2 14.0
09Z:  3.2  3.0  4.5       4.8  3.8      14.0            4.5   B   3.3  7.1       5.8  6.0  8.2  6.3            6.4  6.6  6.4  7.2           13.0 14.0
10Z:  3.1  3.6  4.6       5.0  4.7      13.3            4.6  4.7  5.3  7.8       3.1  5.5  8.9  6.0  5.5  7.2  6.6  6.8  6.0  6.7       6.7 12.0 13.2
11Z:  3.2  5.2  4.7       6.3  4.8      11.5            4.7  5.3  5.2  7.4            6.1  7.7  5.6  5.5       6.4  6.2  6.1  6.4       8.0  9.7 13.0
12Z:  3.2  5.8  4.3  5.0  6.7  5.3       7.7            4.3  5.8  5.6  8.0                                          6.0  5.9  6.3       8.0  9.6  9.3
13Z:  4.2   B   3.8  5.7  6.2  5.7       7.7        C   3.8  5.8  5.4  8.2                                          5.8  5.9  6.1       5.6  7.3  9.4
14Z:        B   3.3  5.6  5.3  5.4        C        4.9  3.3  5.6  6.0  8.0                                          5.8  5.7

