Difference between revisions of "Solar proton event"

From Glossary of Meteorology
imported>Perlwikibot
(Created page with " {{TermHeader}} {{TermSearch}} <div class="termentry"> <div class="term"> == solar proton event == </div> <div class="definition"><div class="short_definition">The epis...")
 
imported>Rbrandt
 
Line 7: Line 7:
 
   <div class="term">
 
   <div class="term">
 
== solar proton event ==
 
== solar proton event ==
  </div>
 
  
<div class="definition"><div class="short_definition">The episodic [[flux]] of high-energy protons and other energetic [[particles]] from  the sun.</div><br/> <div class="paragraph">The [[ionization]] created by these particles as they enter the [[upper atmosphere]] is responsible  for [[polar cap absorption events]] and for chemical effects in the neutral upper atmosphere.</div><br/> </div>
+
<div class="definition"><div class="short_definition">(Abbreviated SPE.) Strong enhancement in energetic [[proton]] [[flux]] (typically >10 MeV), commonly from a shock caused by an energetic solar eruption. SPEs can be detected throughout the heliosphere; however, for [[space weather]] purposes, they are characterized by the episodic detection and measurement of proton flux reaching and sustaining 10 particle flux units (1 PFU = 1 particle per square cm per second per [[steradian]]) for at least 15 minutes at energies >10 MeV by the primary [[noaa|NOAA]] [[satellite]] or [[goes|GOES]]. Periods of at least 10 PFU at the 10-MeV level are also referred to as solar proton events or radiation storms and are quantified by the use of the National Oceanic and Atmospheric Administration [[S-scale]].</div><br/> </div>
</div>
+
 
 +
<p>Space Weather Prediction Center, 2018: Solar radiation storm. Accessed 14 August 2018. Available at <nowiki>https://www.swpc.noaa.gov/phenomena/solar-radiation-storm</nowiki>.</p><br/>
 +
 
 +
<p>''Term edited 14 August 2018.''</p>
  
 
{{TermIndex}}
 
{{TermIndex}}

Latest revision as of 19:06, 14 August 2018



solar proton event

(Abbreviated SPE.) Strong enhancement in energetic proton flux (typically >10 MeV), commonly from a shock caused by an energetic solar eruption. SPEs can be detected throughout the heliosphere; however, for space weather purposes, they are characterized by the episodic detection and measurement of proton flux reaching and sustaining 10 particle flux units (1 PFU = 1 particle per square cm per second per steradian) for at least 15 minutes at energies >10 MeV by the primary NOAA satellite or GOES. Periods of at least 10 PFU at the 10-MeV level are also referred to as solar proton events or radiation storms and are quantified by the use of the National Oceanic and Atmospheric Administration S-scale.

Space Weather Prediction Center, 2018: Solar radiation storm. Accessed 14 August 2018. Available at https://www.swpc.noaa.gov/phenomena/solar-radiation-storm.


Term edited 14 August 2018.