Using online data

[ke7wmi]

Hello all

I'm currently setting up a VLF/ULF station that will also have mag field sensor for measuring the earth magnetic field for measuring solar events. My ?? is this hows the best way to use online data say from SOHO for correlating events with other stations. Is there any software stand alone or web base for this kind of work or is it a Excel show.

Any idea's would be great Thanks

KE7WMI

[af4ex]

Jan 30, 2011 14:35:39 GMT ke7wmi said:

Hello all

I'm currently setting up a VLF/ULF station that will also have mag field sensor for measuring the earth magnetic field for measuring solar events. My ?? is this hows the best way to use online data say from SOHO for correlating events with other stations. Is there any software stand alone or web base for this kind of work or is it a Excel show.

Any idea's would be great Thanks

KE7WMI

Hello, welcome to SolarCycle24! We're mainly interested in much shorter wavelength radiation: microwaves, optical, x-ray and gamma. But VLF, and below, are very interesting to me.

Are you planning to put your VLF/ULF station online in real time? If so, you should contact Paul Nicholson at abelian.org/vlf/. He provides free hosting for dedicated amateur VLF receiving stations and is always looking for receivers in the mid to higher latitudes. I think you're in grid DN26, which is a good latitude for whistlers and other VLF phenomena.

Wolf Buescher, DL4YHF, has written a very popular spectrum analyzer program which can be freely downloaded at his web site: www.qsl.net/dl4yhf/spectra1.html . It can be used, in conjunction with the PC sound card, as a broadband ELF/VLF receiver with waterfall display. Yes, sound cards are designed to pick up sounds, but the ELF/VLF spectrum (~30Hz to 30kHz) coincides with the audio spectrum, so a sound card is a software-defined radio for these frequencies!

I don't think there's a lot of direct correlation between events on the solar disk and Earth's magnetic field, except for very large flares (which can ionize the upper atmosphere) and solar wind generated by CME's.

You can detect some of these events as disturbances in propagation in the VLF Earth Ionosphere Wave Guide (EIWG). Here's a link to an amateur VLF receiving station operated by Joel Gonzalez, W4GON, who is a node on the abelian.org net and also has done some experiments in detecting solar (and extragalactic) induced ionospheric disturbances. www.backyardastronomy.net/sid_receiver.html

Hope that helps,
John/af4ex

[eldotda]

I can't answer your question myself, but you might find something of interest in the ULF/ELF group on Yahoo Groups.

[ZL4DH]

iswa.gsfc.nasa.gov/iswa/iSWA.html

solarimg.org/artis/


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