We seek to understand and document all radio transmissions, legal and otherwise, as part of the radio listening hobby. We do not encourage any radio operations contrary to regulations. Always consult with the appropriate authorities if you have questions concerning what is permissable in your locale.

Author Topic: Researchers develop a new technique to forecast geomagnetic storms  (Read 405 times)

Online skeezix

  • Global Moderator
  • DX Legend
  • *****
  • Posts: 3347
  • What does 'RNO stand for?
    • View Profile
https://phys.org/news/2018-08-technique-geomagnetic-storms.html

Quote
In the journal Chaos, from AIP Publishing, a group of investigators from Europe, led by Reik Donner at Potsdam Institute for Climate Impact Research in Germany, reports a new method for analyzing magnetic field data that might provide better short-term forecasting of geomagnetic storms.
Minneapolis, MN

Offline ChrisSmolinski

  • Administrator
  • Marconi Class DXer
  • *****
  • Posts: 21827
    • View Profile
    • Black Cat Systems
Re: Researchers develop a new technique to forecast geomagnetic storms
« Reply #1 on: September 05, 2018, 1143 UTC »
Quote
The investigators used hourly values of the Disturbance storm-time, or Dst, index. Dst values give the average deviation of the horizontal component of the Earth's magnetic field from its normal value. This deviation occurs when a large burst of charged particles arrives from the sun and weakens the field generated by the Earth. The Dst values form a single stream of numbers known as a time series. The time series data can then be recast into a 2-D or 3-D image by plotting one data point against another at a fixed amount of time into the future for forecasting.

I believe it was jFarley that got me hooked on checking the Dst index for estimating longwave propagation conditions. It is one of the values graphed on the HFU's propagation page: https://www.hfunderground.com/propagation/index.html#longwave
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
NRD 545 / netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 670 ft horizontal loop / 500 ft northeast beverage / 270 ft west-south-west beverage / 300 ft south beverage / 43m / 20m / 10m  dipoles / Crossed Parallel Loop

Offline jFarley

  • Global Moderator
  • DX Legend
  • *****
  • Posts: 5740
    • View Profile
    • Email
Re: Researchers develop a new technique to forecast geomagnetic storms
« Reply #2 on: September 05, 2018, 1202 UTC »
Here's another useful tool:

http://dk0wcy.de/magnetogram/

I usually refer to this before starting to process an overnite recording.
Joe Farley, Near Chicago
SDR-IQ / R8 / R7
Remote Resonant Loops for HF and LF / ALA 1530
Active 60" Whip / PA0RDT
QSLS appreciated to:    jfarley44@att.net

Offline ChrisSmolinski

  • Administrator
  • Marconi Class DXer
  • *****
  • Posts: 21827
    • View Profile
    • Black Cat Systems
Re: Researchers develop a new technique to forecast geomagnetic storms
« Reply #3 on: September 05, 2018, 1211 UTC »
Here's another useful tool:

http://dk0wcy.de/magnetogram/

I usually refer to this before starting to process an overnite recording.

Thanks for the link! I will add it to the HFU propagation page. 
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
NRD 545 / netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 670 ft horizontal loop / 500 ft northeast beverage / 270 ft west-south-west beverage / 300 ft south beverage / 43m / 20m / 10m  dipoles / Crossed Parallel Loop

Offline jFarley

  • Global Moderator
  • DX Legend
  • *****
  • Posts: 5740
    • View Profile
    • Email
Re: Researchers develop a new technique to forecast geomagnetic storms
« Reply #4 on: September 05, 2018, 1430 UTC »
Thanks, Chris; nice to have everything in one place.
Joe Farley, Near Chicago
SDR-IQ / R8 / R7
Remote Resonant Loops for HF and LF / ALA 1530
Active 60" Whip / PA0RDT
QSLS appreciated to:    jfarley44@att.net