VAL TRONCEA VALLEY ELF GALLERY (11-29 August 2014)

11-12 08 2014 

 

This is the first night i've placed the coil into the ground
Very quiet night, the only one without Alfvèn Resonances.

 Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)      7     1     1     1     1     2     2     1     3



12-13 08 2014 




Second night. Ionospheric Alfvèn Resonances clearly visible from 0.1 Hz to about 6 Hz.


Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)     12     3     2     1     2     1     3     4     4


13-14 08 2014




During the night of 12-13 August, finally i've got a complete evolution of  Alfvèn Resonances , their structure and their formation from
start to finish during 
about 8 hours.1800 meters  over the western Alps: a perfect place for ELF Reception.
From now on, Alfvèn Resnonances will be  almost always visible during august spectrograms.


Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)      6     2     2     2     2     2     1     1     1


14-15 08 2014




Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)      4     1     1     1     2     1     1     1     2



15-16 08 2014




Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)      5     1     1     1     1     2     2     0     1



16-17 08 2014




Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)      3     1     1     0     1     1     0     1     1



17-18 08 2014



Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)      7     2     1     1     3     3     2     1     2


18-19 08 2014



Bad weather over the mountainsT he red stripes are lightning and thunderstorms near the coil.


Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)      5     1     1     2     0     1     1     1     1




19-20 08 2014



During this night the coil received a geomagnetic pulsation  (PC1) . It was one of the few recorded in 2014. (Red spot on the lower left)
from 0.1 Hz to about 4 Hz. Alfvèn Resonances also present. Here is the same PC1 processed with Sonic Visualizer :






Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)     17     1     1     2     3     2     2     4     6

 I then made ​​audible the sound recording ,with a diffrent sample rate and 
speeded up 400 times. Whole description of the event into the video:

Geomagnetic Pulse (PC1) from Fabrizio Francione on Vimeo.



20-21 08 2014



Still a trace of another PC1 (?) , this time very weak compared to  the yesterday's one .

Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)      6     2     1     1     2     2     1     1     2

for comparison here spectrograms of Kiruna , the same day :





21-22 08 2014




Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)     11     3     3     2     2     2     1     3     2



22-23 08 2014



Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)      4     1     3     1     0     1     0     0     1

23-24 08 2014



Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)      5     1     2     2     1     1     1     1     1

25-26 08 2014



Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)      4     0     1     1     1     1     1     1     1

26-27 08 2014



Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)      4     1     1     1     2     1     1     1     1

27-28 08 2014



Station        Lat Long  Index 00-03 03-06 06-09 09-12 12-15 15-18 18-21 21-24

Planetary(estimated Ap)     20     1     3     4     4     4     4     3     4

28-29 08 2014



BACK