Jump to content

GLE. Ground Level Enhancements


hamateur 1953
Go to solution Solved by Indrid Cold,

Recommended Posts

These events occur during most solar cycles and are recorded as such should there be simultaneous increased neutron counts at two terrestrial locations as I understand it.
what I don’t understand is the apparently large differences of MEV or energy that it seems to take to “ make the case”. I have read as low as 116 MEV  recently and read elsewhere as high as 500 MEV.   No doubt during high solar flux we have more protection from these as typical neutron counts plunge typically during solar max but 116 just seems a bit low to me.   Anyone know more??  Tnx. Mike. 

  • Like 1
Link to comment
Share on other sites

  • 3 weeks later...
  • Solution
Posted (edited)

Most studies I've seen are in agreement on energies at >500 MeV to produce a GLE. There is also another class of GLE called a sub-GLE. These are the primary particles at lower ranges that register only at high altitude stations but don't make it to neutron monitors at sea level. That is probably what you are seeing. 

If you're up for some reading here are a couple articles to get you started. 

GLE - https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2005SW000204

and

Sub-GLE- https://arxiv.org/abs/1711.06161

 

Edited by Indrid Cold
  • Like 1
  • Thanks 1
Link to comment
Share on other sites

3 hours ago, Indrid Cold said:

Most studies I've seen are in agreement on energies at >500 MeV to produce a GLE. There is also another class of GLE called a sub-GLE. These are the primary particles at lower ranges that register only at high altitude stations but don't make it to neutron monitors at sea level. That is probably what you are seeing. 

If you're up for some reading here are a couple articles to get you started. 

GLE - https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2005SW000204

and

Sub-GLE- https://arxiv.org/abs/1711.06161

 

Up for some reading.  Indeed @Indrid Cold   Haha. Muons too?! Very informative. Way over my head but still was amazed at how much real science goes on in the background while the bulk of the regular guys like me grasp to understand particle physics alone. And the painstaking efforts to use multiple points of collection.  I assumed only a few high latitudes would be done!   Way cool.  Mike/Hagrid. 🐈‍⬛

  • Like 2
Link to comment
Share on other sites

I believe a thorough explanation will vastly overshadow the scope of the question, in order to explain physical phenomenon only recently demonstrated to exist. I am similarly interested, but my aim is to examine the implications of existing, accepted "fact" as it were within the science community. A bit of an upheaval is occurring, threatening funding of genuinely scientific, productive, and meaningful efforts, so deeper understanding of the aforementioned phenomenon lie betwixt a lot of jargon ;)

  • Like 2
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you also agree to our Terms of Use and our Privacy Policy.