Opera 2015 - Magnetic Pulsation 015
PC1 pulsation, starting from 2015 August 29 18:00
A pulsation with anomalous feature: it occurred only at low latitudes, and it was recorded from any station in our network while observers in northern Europe not revealed it. Also time is quite unusual: the pulses at mid-latitudes are mainly nocturnal while this one began in full daylight.

Geomagnetic activity as reported by NOAA (http://www.swpc.noaa.gov/products/notifications-timeline)

The strong geomagnetic activity was propitious. The PC1 time is evidenced in purple oval, on right bottom.


Geomagnetic activity detected - Kiruna Geophysical Institute (Sweden ) http://www.irf.se/maggraphs/puls.php
 
2015 August 19, PC1 pulsation area evidenced in white square: low frequency activity detected but no trace of pulsations.


Geomagnetic activity detected - Sodankyla Geophysical Observatory (Finland)  http://www.sgo.fi/Data/Pulsation/latestPulsation.php -
 
Same situation as before, 2015 August 19, PC1 pulsation area evidenced in black square: low frequency activity detected but no trace of pulsations.


Source files:


Monitoring St. 04 - ROMAGNA OBSERVATORY From Sogliano al Rubicone (FC), N Italy. 

ICS101,  PC1 pulsations, preceded by local noise, are evidenced in white ovals. Schumann Resonances on left part. Some carriers coming from main network.

Monitoring St. 04 - ROMAGNA OBSERVATORY From Sogliano al Rubicone (FC), N Italy. 

ICS101 induction coil,  daily strips, PC1 pulsations evidenced in white ovals, preceded by local noise. First Schumann Resonance on left part. Also SRS (spectral resonances structures) and local storm.

Monitoring St. 05 - NORTHERN CROSS RADIOTELESCOPE From Medicina (IT - Bologna), N Italy 

ULFO induction coil,  the first part of PC1 pulsations evidenced in white ovals. Schumann Resonances on right part. Some carriers coming from main network.

Monitoring St. 01 - IK1QFK  CUMIANA (TO), NW Italy

Two orthogonal ICS101 induction coils,  first and strong part of PC1 pulsation evidenced in white oval. Schumann Resonances on right partmany train passing 5 km away, and . Magnetic pulsations colors are basically blu/light blue: this indicates a dominance of the north/nort-wes component.


 Monitoring St. 03 - ETNA RADIO OBSERVATORY From NICOLOSI (CT), Etna Park, Sicily, S Italy 

Induction coil,  first part of PC1 pulsation evidenced in littlewhite oval. Schumann Resonances on right part. Microphonic signals caused by coil shaking by wind. 


Monitoring St. 01 - IK1QFK  CUMIANA (TO), NW Italy

Source file 28AUG15-1600_IC100-RDF.wav  elaborated with sonic visualizer. Two orthogonal ICS101 induction coils,  NS component on top, EW on the bottom. PC1 pulsation evidenced in red oval. Also this graph shows the primary component of pulsation in NS direction.
Monitoring St. 04 - ROMAGNA OBSERVATORY From Sogliano al Rubicone (FC), N Italy. 

First half part of source file 28AUG15-1600to0000_sogliano.wav  acquired with ICS101 induction coil,  and analyzed with Sonic Visualizer. PC1 pulsations evidenced in red ovals, local noise in red square.
 
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