01/17/2026
The Sudden Ionospheric Disturbance (SID) Stanford Solar Center Data Base and SID Project Station 9532 (WSC-Winnipeg).
Stanford Solar Center (part of Stanford University) established a program to study the sun and solar weather and profile solar science in universities, schools and to the public by making available relatively inexpensive monitoring equipment to measure the disturbance to the D ionospheric layer caused by solar flares. These Ionospheric monitoring stations are distributed across the world with data being sent daily to the Stanford Solar Center by ftp.. The Winnipeg Senior Club station is # 9532.
The monitor uses a magnetic loop antenna to capture the magnetic component of the refracted Very Low Frequency (VLF) signals (in the range of 20,000 Hz) These signals are generated by powerful stations designed to communicate with submerged submarines.
I’m not sure I’ve published the URL for the SID Database which records and displays the “civilian science” outputs of hundreds of SID stations around the world.
WSC is monitoring 3 VLF stations NAA 24000 Hz 250 KW (Maine),NLK 24800 Hz, 566 KW, and NPM 21400 Hz, (Washington State), 1000 KW (Hawaii) The longest path is Wpg to Hawaii and this is our most productive frequency. This list may change.
The current antenna seems capable of capturing M and X flares and occasional extreme C flares (Flares are ranked A, B, C, M, X based on X-Ray energy measurements).
I am correlating K values to flare observations. Canada has 14 operating geomagnetic monitoring stations with Brandon being the closest. (The other Manitoba station is Fort Churchill .. FCC). There are a number of K indexes: Kp, K, Khr. More on K values and other space weather indexes in future communications.
Our station is # 9532 WSC-Winnipeg and can be searched at the URL noted below. We have been sending data for years (with an exception for summer 2025 when the station was temporarily transferred to WSC2-Kenora).
The station is now back at WSC where it will stay. I will bring back my larger and more sensitive loop antenna from Kenora on the Spring.
The URL is:
http://sid.stanford.edu/database-browser/
Do not use Apple mobile platforms. Access is best through a PC Windows Environment.
Geoff VE4AE
Sent from my iPhone