Le soleil s'excite

Voilà un moment que le soleil se fait très très bavard, et ces derniers temps cela s'amplifie. Pour suivre les infos au jour le jour : http://www.swpc.noaa.gov/

 

Dernières mises à jour :

:Product: SWPC Space Weather Alerts ALTS.txt
:Issued: 2012 Mar 08 0948 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# See http://swpc.noaa.gov/alerts/ for description and other displays
# Send comments and suggestions to [e-mail]
#
#       SWPC Space Weather Alerts Issued in the last 24 hours
#---------------------------------------------------------------------

Space Weather Message Code: WARPX1
Serial Number: 345
Issue Time: 2012 Mar 07 2355 UTC

EXTENDED WARNING: Proton 10MeV Integral Flux above 10pfu expected
Extension to Serial Number: 344
Valid From: 2012 Mar 07 0030 UTC
Now Valid Until: 2012 Mar 08 2359 UTC
Warning Condition: persistence
Predicted NOAA Scale: S3 - Strong
Potential Impacts: Radio - Minor impacts on polar HF (high frequency) radio propagation resulting in fades at lower frequencies.

#-------------------------------------------------
Space Weather Message Code: WARPC0
Serial Number: 55
Issue Time: 2012 Mar 07 2354 UTC

EXTENDED WARNING: Proton 100MeV Integral Flux above 1pfu expected
Extension to Serial Number: 54
Valid From: 2012 Mar 07 0300 UTC
Now Valid Until: 2012 Mar 08 2359 UTC
Warning Condition: Onset
Potential Impacts: An enhancement in the energetic portion of the solar radiation spectrum may indicate increased biological risk to astronauts or passengers and crew in high latitude, high altitude flights. Additionally, energetic particles may represent an increased risk to all satellite systems susceptible to single event effects. This information should be used in conjunction with the current Solar Radiation Storm conditions when assessing overall impact.